Exhibit
10.11


 


SPECIFIC
TERMS IN THIS EXHIBIT HAVE BEEN REDACTED BECAUSE CONFIDENTIAL TREATMENT FOR THOSE TERMS HAS BEEN REQUESTED. THE REDACTED MATERIAL
HAS BEEN SEPARATELY FILED WITH THE SECURITIES AND EXCHANGE COMMISSION, AND THE TERMS HAVE BEEN MARKED AT THE APPROPRIATE PLACE
WITH TWO ASTERISKS (**).


 


 





Attention:
Bobby Chapman


Company:
EcoStim Energy Solutions, Inc.


 


	 
	FRACTURING
    SPREAD (2-BLENDER SPREAD)
	 






 


Quotation
No 13-9921, Revision 3

Dated: January 6, 2014


 


INQUIRY
NO.


 


Presented
by: Chad Joost

Address: 10750 Telge Road

Houston, Texas 77095

Phone: 281-345-5100

Fax: 281-345-1188

Email: c.joost@ssss.com


 


COMMERCIAL
PROPOSAL


 





 



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Stewart
& Stevenson Manufacturing Technologies LLC


 


TABLE
OF CONTENTS


 





	COMMERCIAL
    PROPOSAL	 	5
	ORDER
    ACKNOWLEDGMENT	 	7
	MODEL
    FT-2251Q, TRAILER-MOUNTED, QUINTUPLEX, 2,250 BHP FRACTURING UNIT WITH INTELLIGENT PUMP CONTROL©	 	8
	1.0	 	DESCRIPTION	 	8
	 	 	1.1	 	TRAILER
    SYSTEM	 	9
	 	 	 	 	1.1.1	 	TRACTOR
    CHASSIS (CUSTOMER SUPPLIED)	 	10
	 	 	1.2	 	DECK
    POWER SYSTEM	 	10
	 	 	 	 	1.2.1	 	ENGINE	 	10
	 	 	 	 	1.2.2	 	COOLING
    SYSTEM	 	10
	 	 	 	 	1.2.3	 	TRANSMISSION	 	11
	 	 	 	 	1.2.4	 	ENGINE/TRANSMISSION
    MOUNTING	 	12
	 	 	 	 	1.2.5	 	DRIVELINE	 	12
	 	 	 	 	1.2.6	 	HYDRAULIC
    SYSTEM	 	12
	 	 	1.3	 	PUMP
    SYSTEM	 	12
	 	 	 	 	1.3.1	 	SUCTION
    MANIFOLD	 	13
	 	 	 	 	1.3.2	 	DISCHARGE
    MANIFOLD	 	13
	 	 	 	 	1.3.3	 	FLUID-END
    LUBRICATION	 	13
	 	 	 	 	1.3.4	 	POWER-END
    LUBRICATION	 	14
	 	 	 	 	1.3.5	 	PUMP
    MAINTENANCE TOOLS	 	14
	 	 	1.4	 	CONTROL
    AND INSTRUMENTATION SYSTEM	 	14
	 	 	 	 	1.4.1	 	LOCAL
    GAUGE CABINET	 	14
	 	 	 	 	1.4.2	 	LOCAL
    ELECTRICAL JUNCTION BOX	 	14
	 	 	 	 	1.4.3	 	MISCELLANEOUS	 	14
	 	 	 	 	1.4.4	 	STEWART
    & STEVENSON INTELLIGENT PUMP CONTROL© (IPC)	 	15
	 	 	 	 	1.4.5	 	DATA
    OUTPUT	 	16
	 	 	1.5	 	UNITIZATION
    AND COMPLETION	 	16
	 	 	1.6	 	FLUID
    END PLATFORM (OPTIONAL)	 	17
	 	 	1.7	 	BLEED
    VALVE (OPTIONAL)	 	17
	MODEL
    MT-102HP, HIGH-POWER, 100 BPM TRAILER-MOUNTED BLENDER WITH ACCUFRACTM AUTOMATIC BLENDER CONTROL SYSTEM, CAT TIER IV
    ENGINES	 	18
	2.0	 	DESCRIPTION	 	18
	 	 	2.1	 	TRAILER	 	19
	 	 	2.2	 	DRIVE
    SYSTEM	 	20
	 	 	 	 	2.2.1	 	DISCHARGE
    PUMP ENGINE	 	20
	 	 	 	 	2.2.2	 	HYDRAULIC
    DRIVE ENGINE	 	20
	 	 	 	 	2.2.3	 	HYDRAULIC
    SYSTEM	 	21
	 	 	 	 	2.2.4	 	FUEL
    SYSTEM	 	21
	 	 	2.3	 	MIXING
    SYSTEM	 	21
	 	 	 	 	2.3.1	 	BLENDER
    TUB	 	21
	 	 	 	 	2.3.2	 	PROPPANT
    LOADING AUGERS	 	22
	 	 	 	 	2.3.3	 	SUCTION
    PUMP AND MANIFOLDS	 	22
	 	 	 	 	2.3.4	 	DISCHARGE
    PUMP AND MANIFOLDS	 	23
	 	 	 	 	2.3.5	 	MONITORING
    DEVICES	 	23
		 	2.4	 	DRY
    CHEMICAL ADDITIVE SYSTEM	 	23
		 	2.5	 	LIQUID
    CHEMICAL ADDITIVE SYSTEM	 	24
		 	2.6	 	CONTROLS/INSTRUMENTATION
    SYSTEM	 	24




  


 


 



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	 	 	 	 	2.6.1	 	CONTROLS	 	24
	 	 	 	 	2.6.2	 	INSTRUMENTATION	 	25
	 	 	2.7	 	ACCUFRACTM SYSTEM	 	25
	 	 	 	 	2.7.1	 	AUTOMATIC DENSITY CONTROL (ADC)	 	26
	 	 	 	 	2.7.2	 	AUTOMATIC CHEMICAL CONTROL (ACC)	 	27
	 	 	2.8	 	UNITIZATION AND COMPLETION	 	27
	 	 	2.9	 	CABIN WITH ACCUFRAC	 	28
	 	 	2.10	 	UPGRADE DRY AND LIQUID ADDITIVE SYSTEM	 	29
	MODEL CT-5CAS/HYD, TRAILER-MOUNTED HYDRATION UNIT AND CHEMICAL ADDITIVE SYSTEM	30
	3.0	 	DESCRIPTION	 	30
	 	 	3.1	 	TRAILER SYSTEM	 	31
	 	 	3.2	 	POWER SYSTEM	 	32
	 	 	 	 	3.2.1	 	DIESEL ENGINE	 	32
	 	 	 	 	3.2.2	 	HYDRAULIC SYSTEM	 	32
	 	 	3.3	 	CHEMICAL ADDITIVE SYSTEM	 	32
	 	 	 	 	3.3.1	 	TANKS	 	32
	 	 	 	 	3.3.2	 	CHEMICAL PUMPING SYSTEM	 	33
	 	 	3.4	 	HYDRATION SYSTEM.	 	33
	 	 	 	 	3.4.1	 	HYDRATION TANK	 	33
	 	 	 	 	3.4.2	 	MANIFOLDS	 	34
	 	 	 	 	3.4.3	 	CENTRIFUGAL PUMP	 	34
	 	 	3.5	 	RHEOLOGY KIT	 	34
	 	 	3.6	 	CONTROL SYSTEM	 	35
	 	 	 	 	3.6.1	 	CONTROL CONSOLE	 	35
	 	 	 	 	3.6.2	 	INSTRUMENT AND CONTROL CONSOLE	 	35
	 	 	3.7	 	ACCUFRACTM SYSTEM.	 	36
	 	 	 	 	3.7.1	 	AUTOMATIC CHEMICAL CONTROL (ACC)	 	36
	 	 	3.8	 	UNITIZATION AND COMPLETION	 	37
	 	 	3.9	 	UPGRADE PUMPS AND SPARE POLYMER PUMP	 	38
	MODEL ET-40EXP, EXPANDABLE TRAILER-MOUNTED CONTROL AND DATA ACQUISITION CENTER	 	39
	4.0	 	DESCRIPTION	 	39
	 	 	4.1	 	TRAILER	 	39
	 	 	4.2	 	OPERATOR’S CABIN	 	40
	 	 	 	 	4.2.1	 	EXPANDABLE AREA	 	40
	 	 	4.3	 	POWER SUPPLY SYSTEM	 	41
	 	 	 	 	4.3.1	 	 GENERATOR SET	 	41
	 	 	 	 	4.3.2	 	SHORE-POWER SYSTEM	 	41
	 	 	 	 	4.3.3	 	DC POWER SYSTEM	 	41
	 	 	 	 	4.3.4	 	BATTERY BACKUP SYSTEM	 	41
	 	 	4.4	 	COMPUTERS AND RELATED HARDWARE SYSTEM	 	41
	 	 	 	 	4.4.1	 	INDUSTRIAL PC COMPUTERS	 	42
	 	 	 	 	4.4.2	 	MONITORS	 	42
	 	 	 	 	4.4.3	 	PRINTERS	 	42
	 	 	 	 	4.4.4	 	OPERATING SYSTEM	 	42
	 	 	4.5	 	CONTROL AND DATA ACQUISITION PACKAGE	 	43
	 	 	 	 	4.5.1	 	ACCUFRACPCTM	 	43
	 	 	 	 	4.5.2	 	IPC-PCTM SOFTWARE	 	43







 


 


 



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Stewart
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	 	 	4.6	 	EXTERNAL
    CONNECTIONS	 	44
	 	 	 	 	4.6.1	 	CABLES
    AND REELS	 	 44
	 	 	 	 	4.6.2	 	SHIP
    LOOSE CABLE KIT	 	 45
	 	 	4.7	 	ADDITIONAL
    EQUIPMENT	 	45
	 	 	 	 	4.7.1	 	 SENSORS	 	 45
	 	 	 	 	4.7.2	 	 FRAC
    COMMUNICATION SYSTEM	 	 45
	 	 	 	 	4.7.3	 	 FREQUENCY
    SIGNAL CALIBRATOR	 	 46
	 	 	4.8	 	UNITIZATION
    AND COMPLETION	 	46
	5.0	 	INSPECTION/TRAINING	 	47
	6.0	 	COMMISSIONING	 	47
	WARRANTY
    POLICY STATEMENT	 	48
	TERMS
    & CONDITIONS	 	50




 


 


 




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COMMERCIAL
PROPOSAL


 





	ITEM	 	 	DESCRIPTION	 	 	QTY.	 	 	UNIT
    PRICE	 	 	EXTD
    PRICE	 
	1	 	 	FT-2251Q Trailer Mounted Fracturing Unit	 	 	4	 	 		**	 	 		**	 
	1a	 	 	Optional FT-2251Q Slide Out Fluid End Service Platform	 	 	4	 	 		**	 	 		**	 
	1b	 	 	Optional FT-2251Q 2x1 Bleed Valve in lieu of TX Carbide	 	 	4	 	 		**	 	 		**	 
	2	 	 	MT-102HP Trailer Mounted Fracturing Blender	 	 	2	 	 		**	 	 		**	 
	2a	 	 	Optional MT-102HP Enclosed Operator’s Cabin with AC/Heat	 	 	2	 	 		**	 	 		**	 
	3	 	 	CT-5CAS/HYD Trailer Mounted Chemical Additive and Hydration Unit	 	 	1	 	 		**	 	 		**	 
	4	 	 	ET-40EXP Trailer Mounted Data Acquisition and Control Unit with Lab
    Room and Slide Out	 	 	I	 	 		**	 	 		**	 
	5	 	 	Inspection and Training in Houston	 	 	1	 	 		 	 	 		Included	 
	6	 	 	Commissioning in Argentina (2 Technicians, 14 Days)	 	 	1	 	 		**	 	 		**	 
	 	 	 	 	 	 	 	 	 	 	TOTAL	 	 		**	 
	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	 	 	 	Optional Items	 	 	 	 	 	 	 	 	 	 	 
	2b	 	 	Optional MT-102HP, Change Chemical Additive System to 5 Waukesha
    Pumps (006, 006, 006, 015, 030) and 1 Dry Add (101-E)	 	 	2	 	 		**	 	 		**	 
	3a	 	 	Optional CT-5CAS/HYD, Change Chemical Additive System to 4 Waukesha
    Pumps (006, 006, 006, 015) and a Spare Polymer PC Pump	 	 	1	 	 		**	 	 		**	 
	 	 	 	GRAND TOTAL WITH ABOVE OPTIONS	 	 	$	8,093,870.00	 








 


	COMMERCIAL
    NOTES:
	 	 	 
	 	1.	Prices
    are quoted in US Dollars.
	 	 	 
	 	2.	Prices
    and deliveries are subject to prior sale.
	 	 	 
	 	3.	Prices
    are valid for fourteen (14) days from date of proposal.
	 	 	 
	 	4.	Delivery
    for the above equipment is EXW — EX WORKS (Stewart & Stevenson Plant Houston, TX) per INCOTERMS® 2010.
	 	 	 
	 	5.	Delivery
    for the above equipment is based upon component availability and production schedule at time of order. Quoted delivery is
    from receipt of order. Order is considered received after all of the following are received:
	 	 	 
	 		a.	 	Signed
    order acknowledgement and
	 	 	 	 	 
	 	 	b.	 	Down
    payment or letter of credit (as defined in payment terms).
	 	 	 	 	 
	 	6.	Quoted
    delivery is as follows (subject to prior sale):
	 	 	 
	 	 	●	 	FT-2251Q:
    3 Units In Stock, Material for additional units is In Stock, 4th Unit Completion 1 Month ARO
	 	 	 	 	 
	 	 	●	 	MT-102HP
    Unit #1: 2 Months ARO
	 	 	 	 	 
	 	 	●	 	MT-102HP
    Unit #2: 2.5 Months after receipt of Unit #2 deposit (expected 2/15/14)
	 	 	 	 	 
	 	 	●	 	CT-5CAS/HYD:
    In Stock
	 	 	 	 	 
	 	 	●	 	ET-40EXP:
    Body is In Stock, Completion 1 Month ARO


 


 


 



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Stewart
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	 	7.	Stewart
    & Stevenson equipment is certified according to United States Department of Transportation rules and regulations. Compliance
    to any additional export country’s road laws and regulations shall be the customer’s sole responsibility.
	 	 	 
	 	8.	While
    Stewart & Stevenson will use all efforts to meet our on-time delivery commitment, we cannot accept responsibility for
    events outside our control, where 3rd party’s quality or delivery issues may negatively impact our finished product
    deliveries.
	 	 	 
	 	9.	Ultimate
    destination of equipment — Argentina, Stewart & Stevenson Manufacturing Technologies LLC shall be excused from performing
    any obligation under this contract that we are unable to perform in the event that we are not authorized to export the products,
    technical information or services under the U.S. Export Regulations or Laws.
	 	 	 
	 	10.	Payment
    terms are as follows:
	 	 	 
	 	 	a.	 	Units
    In-Stock - FT-2251Q Units #1-3, CT-5CAS/HYD:
	 	 	 
	 	 	 	 	i.	 	**
	 	 	 
	 	 	b.	 	Other
    Items and Units to be Completed - MT-102HP Blender Unit #1, FT-2251Q Unit #4, ET-40EXP, Training, and Commissioning:
	 	 	 
	 	 	 	 	i.	 	**
	 	 	 
	 	 	 	 	ii.	 	**
	 	 	 
	 	 	c.	 	MT-102HP
    Blender Unit #2
	 	 	 
	 	 	 	 	i.	 	**
	 	 	 
	 		 	 	ii.	 	**
	 	 	 
	 	11.	Stewart
    & Stevenson terms and conditions apply (included).
	 	 	 
	 	12.	Cold
    Weather Packages are not included.



 


 


 



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ORDER
ACKNOWLEDGMENT


 


We,
the undersigned, understand and wholly accept the technical specifications, commercial price, delivery, other terms and conditions,
warranty policy statement, and general terms and conditions of sale, all as set forth in Stewart & Stevenson proposal number
13-9921 Rev. 3 (collectively the “Agreement”). By signing this document we are placing a firm order for the equipment
described in this proposal. This Agreement shall not become effective until signed by all parties.


 


	EcoStim
                                         Energy Solutions, Inc.
	 	Stewart
    & Stevenson
	Customer		Manufacturing
                                         Technologies LLC

	 	 	S&S
    Entity
	 	 	 
	/s/
                                         Bobby Chapman
		/s/
                                         John B. Simmons

	(signature)	 	(signature)
	 	 	 
	Bobby
                                         Chapman
		John
                                         B. Simmons

	(print
    name)	 	(print
    name)
	 	 	 
	 		
	 	 	(signature)
	 	 	 
	 		
	 	 	(print
    name)


 


Dated
this 8th day of January, 2014


 


 


 




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Stewart
& Stevenson Manufacturing Technologies LLC


 


MODEL
FT-2251Q, TRAILER-MOUNTED, QUINTUPLEX, 2,250 BHP FRACTURING

UNIT WITH INTELLIGENT PUMP CONTROL©


 





 


	1.0		DESCRIPTION



 


The
Stewart & Stevenson FT-2251Q is a trailer-mounted fracturing unit capable of pumping inhibited acid and other proppant laden
stimulation fluids in harsh oilfield environments. The unit is remotely operated from either a remote control suitcase or a mobile
computerized data acquisition and control unit.


 


This
unit is capable of operating in an ambient temperature range of -4°F (-20°C) to 122°F (+50°C). The deck engine
is capable of delivering 2250 BHP to the engine flywheel at SAE conditions and the pump will deliver 2000 HHP.


 


While
delivering full horsepower in any speed range of the deck engine in any gear, and without exceeding the pump ratings, there shall
be no components, which will vibrate with excessive amplitudes in resonance with the forcing vibrations of the engine or pump.
Also, there shall be no excessive rotational vibrations of the engine, transmission, or pump due to transmitted torque and the
flexibility of the skid and mounting systems.


 


The
unit is capable of operating during prolonged pumping operations.


 


 


 




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	Approximate
    Dimensions
	Length	 	43’
    4”	 	13.2
    m
	Width	 	8’
    0”	 	2.4
    m
	Height	 	13’
    6”	 	4.1
    m
	Weight
    Kingpin	 	26,000
    lbs	 	11,800
    kg
	Weight
    Rear Axle	 	40,000
    lbs	 	18,100
    kg
	Weight
    Trailer	 	66,000
    lbs	 	29,900
    kg


 


 


 


	1.1	TRAILER
    SYSTEM



 


The
system is a tandem axle heavy-duty single drop trailer with the following features: 



 


	 	−	Heavy-duty
    twin beam construction
	 	 	 
	 	−	96”
    width
	 	 	 
	 	−	52”
    king pin setting (may be changed to suit customer’s requirements)
	 	 	 
	 	−	Landing
    legs 160,000 lbs 
	 	 	 
	 	−	Air
    ride suspension
	 	 	 
	 	−	Heavy-duty
    tandem axles 
	 	 	 
	 	−	ABS
    Brakes, air type
	 	 	 
	 	−	11.00
    R 22.5 radial tires
	 	 	 
	 	−	2”
    SAE king pin with rub plate (may be changed to suit customer’s requirements) 
	 	 	 
	 	−	Lights
    mounted stop/turn clearance
	 	 	 
	 	−	Mud
    flaps
	 	 	 
	 	−	Rear
    bumper with tow hook
	 	 	 
	 	−	Running
    lights for highway use
	 	 	 
	 	−	Front
    and rear fenders 
	 	 	 
	 	−	24
    volt battery system


 


A
400 USG capacity fuel system is mounted on the trailer. The fuel system is equipped with a vent fill and drain connections together
with a complete fuel distribution system including filters, strainers, suction, and return connections. Fuel tank crossover lines
with individual ball valves are included where necessary.


 


 


 




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	1.1.1	TRACTOR
    CHASSIS (CUSTOMER SUPPLIED) 1.2 DECK POWER SYSTEM


 


	1.2.1	ENGINE


 


Mounted
on the unit is a Detroit Diesel 12V4000, four-cycle diesel engine with the following performance characteristics and features:


 


	 	−	Rated
    2,250 BHP @ 1900 RPM (fracturing specification, see performance curve)
	 	 	 
	 	−	Electronic
    Engine Management System
	 	 	 
	 	−	Electronic
    Throttle Control 
	 	 	 
	 	−	Air
    cleaners
	 	 	 
	 	−	Fuel
    filters
	 	 	 
	 	−	Lubricating
    oil filters
	 	 	 
	 	−	Rear
    housing adaptation kit (SAE00 to SAE0) for use with Allison (or equivalent) transmissions
	 	 	 
	 	−	Lifting
    eyes
	 	 	 
	 	−	Exhaust
    manifolds
	 	 	 
	 	−	Oil
    filter bank and oil pan sight gauge
	 	 	 
	 	−	Pumps,
    fuel and lubricating, fuel transfer, lubricating oil
	 	 	 
	 	−	Pumps,
    water, and jacket water 
	 	 	 
	 	−	Support,
    front trunion
	 	 	 
	 	−	Thermostats
    and housing 
	 	 	 
	 	−	Vibration
    dampeners
	 	 	 
	 	−	Horizontal
    exhaust silencer with rain cap and stainless steel connections 
	 	 	 
	 	−	Alternator
	 	 	 
	 	−	Heavy-duty
    hydraulic starter
	 	 	 
	 	−	Transmission
    oil cooler 


 


	1.2.2		COOLING
                                         SYSTEM



 


A
horizontal remote radiator system with vertical air discharge is installed on the upper deck of the unit. This system incorporates
the following performance characteristics and features:


 


	 	−	Tested
    and certified for operation in rated ambient temperature
	 	 	 
	 	−	Shell
    and Tube Transmission Cooler, oversized for increased heat rejection capability (>10,000 BTU/min)
	 	 	 
	 	−	Power-end
    lubricant cooler


 


 


 




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	 	−	Hydraulic
    oil cooler
	 	 	 
	 	−	Fuel
    cooler
	 	 	 
	 	−	All
    required thermostatic valves (p/e lube, and hydraulic)
	 	 	 
	 	−	Closed-loop
    hydraulic fan drive circuit for maximum efficiency
	 	 	 
	 	−	Fan-to-motor
    interface using a self-aligning motor mount and paraflex coupling
	 	 	 
	 	−	Front
    crankshaft hydraulic pump drive adaptation
	 	 	 
	 	−	Fan
    guard
	 	 	 
	 	−	Coolant
    sight level gauge
	 	 	 
	 	−	Coolant
    level and temperature sensors
	 	 	 
	 	−	Access
    ladder for radiator fill


 


	1.2.3	TRANSMISSION


 


Coupled
to the rear of the deck engine is an Allison S9820 (or equivalent) powershift transmission. The transmission accessories include:


 


	 	−	TC
    1080 torque converter
	 	 	 
	 	−	Transmission
    powershift
	 	 	 
	 	−	Electrically
    activated hydraulic shift assembly
	 	 	 
	 	−	SAE
    #0 mounting
	 	 	 
	 	−	Lockup
    clutch
	 	 	 
	 	−	Output
    shaft disc brake
	 	 	 
	 	−	Transmission
    oil to coolant heat exchanger
	 	 	 
	 	−	Auxiliary
    output adapter plate on back of oil pump drive gear for the pump power-end lubrication pump
	 	 	 
	 	−	Transmission
    oil sump
	 	 	 
	 	−	Gear
    ratios are as follows:


 


	Transmission
    Gear Ratios
	1st	3.75:1
	2nd	2.69:1
	3rd	2.20:1
	4th	1.77:1
	5th	1.58:1
	6th	1.27:1
	7th	1.00:1
	8th	0.742:1
    (Blocked)


 


 


 




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	1.2.4	ENGINE/TRANSMISSION
    MOUNTING


 


The
engine and transmission are isolated from the unit by means of rubber pads and a front engine vibration trunion mount. This makes
the engine/transmission mount combination a single unit and allows for a three-point mounting system with a flexible mount at
the front and two flexible mounts at the rear.


 


Mounting
system eliminates any alignment problems on equipment where there may be flexing of unit. Engine/transmission mount can be separated
into two pieces. This allows removal of transmission leaving engine mounting system intact and greatly simplifying service and
maintenance.


 


	1.2.5	DRIVELINE


 


The
transmission is connected to the pump via a driveline installed in accordance with the manufacturer’s guidelines. The driveline
includes a removable metal guard. A viscous vibration dampener is included and mounted between the universal joint drive shaft
assembly and pump input flange to protect the engine and transmission from inherent vibrations created by the down-hole pump.


 


	1.2.6	HYDRAULIC
    SYSTEM


 


The
deck engine starting system is powered by a tractor wet kit (sold separately). The wet kit is required to supply approximately
50 gallons per minute at 3000 PSI to start the deck engine.


 


A
second hydraulic system, driven by a special front-engine crankshaft adaptation on the deck engine, drives the radiator fan.


 


The
hydraulic system incorporates all required equipment such as hydraulic oil tank, suction filters, return filters, relief valves,
directional control valves, priority valves, and troubleshooting connections to insure a complete and functional system. All plumbing
in the hydraulic system is used in accordance with the manufacturer’s application guidelines.


 


	1.3	PUMP
    SYSTEM


 


The
unit’s main pump is an SPM QWS-2500SD “Severe Duty” quintuplex pump with the following features:


 


	 	−	Auto
    frettaged fluid-end
	 	 	 
	 	−	High
    strength forged alloy steel fluid-end
	 	 	 
	 	−	Winged
    main discharge connection
	 	 	 
	 	−	Integral
    stuffing box
	 	 	 
	 	−	Wing
    guided slush type valves
	 	 	 
	 	−	Rubber
    spring loaded packing
	 	 	 
	 	−	Center
    gauge connection


 


	Pump
    Specifications
	Plunger
    size	4.5
    inch
	Plunger
    stroke	8
    inch
	Gear
    reduction	6.353
    to 1


 


 


 




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	1.3.1	SUCTION
    MANIFOLD


 


The
6” “Zoomie” suction manifold included with the pump extends to the edge of the unit. The manifold terminates
with two 4” Fig. 206 winged union connections and includes two 4” butterfly valves. A removable pulsation dampener
is installed in the suction manifold.


 


	1.3.2	DISCHARGE
    MANIFOLD


 


The
pump’s forward and rear discharge ports are connected to the discharge manifold via 3” Fig. 1502 sub-connections.
This wrap-around bridle configuration provides for maximum performance in high-rate operations and minimizes wear and damage to
the pump. A 2” Fig. 1502 connection is installed on the pump center-gauge opening and is utilized for the unit pressure
transducer. Note: All high-pressure iron is configured in a wings-to-well fashion.


 


The
rear discharge manifold consists of the following components to allow “swing down” connection of the unit:


 


	Quantity	 	Item	 	Size	 	Style
	1	 	Bridle
    with slack adjusters	 	3”	 	1502
	1	 	Check
    Valve	 	3”	 	1502
	1	 	Swivel	 	3”	 	1502
    Style 10
	1	 	Pup
    Joint†	 	3”	 	1502


 


†
The pup joint rests in a cradle mounted on the rear of the unit and is free to swivel outward to facilitate rig-up.


 


	1.3.3	FLUID-END
    LUBRICATION


 


An
electrically-driven grease system is installed to provide lubricant to the plunger packing area. The system includes all accessories
necessary to provide lubrication to the plungers.


 


 


 




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Stewart
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	1.3.4		POWER-END
                                         LUBRICATION



 


The
power-end of the pump is lubricated by a hydraulic pump driven off the PTO accessory connection on the transmission. The power-end
lubrication system includes relief valves, filters, instrumentation, plumbing, and a lube oil reservoir as required.


 


	1.3.5		PUMP
                                         MAINTENANCE TOOLS



 


Pump
maintenance tools are includes as listed below:


 


	 	−	Slide
    hammer tool
	 	 	 
	 	−	Tee
    wrench
	 	 	 
	 	−	Packing
    wrench


 


	1.4		CONTROL
                                         AND INSTRUMENTATION SYSTEM



 


	1.4.1		LOCAL
                                         GAUGE CABINET



 


This
cabinet is isolated from the chassis by shock mounts and has a hinged front cover. Instruments installed in this cabinet are fluid-filled
with brass or stainless steel bodies. The gauges that are installed in this local gauge cabinet are as follows:


 


	 	−	Engine
    coolant temperature gauge
	 	 	 
	 	−	Engine
    oil pressure gauge
	 	 	 
	 	−	Transmission
    oil pressure gauge
	 	 	 
	 	−	Transmission
    oil temperature gauge
	 	 	 
	 	−	Lube
    oil temperature gauge
	 	 	 
	 	−	Pump
    power-end lube oil pressure gauge
	 	 	 
	 	−	Engine
    hour meter
	 	 	 
	 	−	Tachometer


 


	1.4.2		LOCAL
                                         ELECTRICAL JUNCTION BOX



 


A
NEMA 4X electrical junction box is mounted on the unit via shock isolators. All connections to the junction box are made through
rugged, sealed connectors or through sealed cable bushings. All wiring is permanently numbered to match electrical wiring drawings,
and connections are made on terminal strips.


 


	1.4.3		MISCELLANEOUS



 


Supplied
and installed on the pump center gauge connection is a 0-15,000 psi pressure transducer with Fig. 1502 hammer union connection.
The pressure transducer is connected to a pressure display on the operator interface.


 


 


 




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Stewart
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	1.4.4		STEWART
                                         & STEVENSON INTELLIGENT PUMP CONTROL© (IPC)



 


The
IPCTM system controls the fracturing unit including throttle and gear and
monitors all critical parameters.


 


The
IPCTM pump control system is a microprocessor-based system that utilizes a touch-sensitive 12.1” (307 mm) graphical display.
The software and flat panel display are designed for simple operation.


 


This
electronic hardware and software package, developed by Stewart & Stevenson to the most up-to-date field requirements, allows
the operator to carry out complicated stimulation programs.


 


The
hardware is rugged and protected in NEMA 4X enclosures.


 


The
system comprises the following controls.


 


	 	−	Digital
    Engine throttle control
	 	 	 
	 	−	Digital
    Transmission shift
	 	 	 
	 	−	Integral
    over-pressure safety mechanism†
	 	 	 
	 	−	Electric
    power on/off
	 	 	 
	 	−	Transmission
    brake
	 	 	 
	 	−	Engine
    emergency shutdown (if equipped)
	 	 	 
	 	−	Engine
    normal shutdown
	 	 	 
	 	−	Engine
    start


 


†
In over-pressure situations, the over-pressure control system will set the throttle to idle and shift the transmission to neutral.
The throttle control and transmission shifter will only be reactivated when the transmission shifter has been reset to the neutral
position.


 


The
following parameters can be displayed on the touch-screen display in the operator interface module of the IPCTM:


 


	 	−	Engine
    and transmission fault codes with translation (when available)
	 	 	 
	 	−	Engine
    speed
	 	 	 
	 	−	Engine
    oil pressure and temperature 
	 	 	 
	 	−	Engine
    water temperature
	 	 	 
	 	−	Transmission
    oil pressure and temperature
	 	 	 
	 	−	Torque
    converter status indicator for converter and lockup modes
	 	 	 
	 	−	Pump
    speed
	 	 	 
	 	−	Pump
    oil pressure and temperature
	 	 	 
	 	−	Pump
    discharge pressure with overpressure module
	 	 	 
	 	−	Pump
    discharge rate and total
	 	 	 
	 	−	Hydraulic
    horsepower production (calculated)


 


 


 




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Stewart
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A
wrap containing 200’ of multiple-conductor control cable for connecting the remote suitcase to unit-mounted electrical junction
box is installed on the unit.


 


Note:
This cable may also be used to connect the unit-mounted electrical interconnect cabinet to a frac control center in the computerized
data acquisition and control unit.


 


	1.4.5		DATA
                                         OUTPUT



 


The
Stewart & Stevenson IPC system is equipped with Serial Data (RS232) output capability for connection to external devices,
such as Data Acquisition Systems and Memory Storage modules.


 


	1.5		UNITIZATION
                                         AND COMPLETION



 


The
above unit is fully assembled, unitized and completed to Stewart & Stevenson’s specifications. This shall include the
following items (if these items are already detailed above, they shall not be duplicated):


 


	 	−	Decking
    on the unit
	 	 	 
	 	−	Installation
    of lights for 24 hour use
	 	 	 
	 	−	Installation
    of all other electrical systems
	 	 	 
	 	−	Installation
    of all pneumatic systems
	 	 	 
	 	−	Installation
    of all hydraulic systems
	 	 	 
	 	−	Installation
    of all necessary hose racks as per available space
	 	 	 
	 	−	Supply
    of all operating oils, coolants and other operating fluids
	 	 	 
	 	−	All
    steel and miscellaneous fittings to complete the unit
	 	 	 
	 	−	All
    labor to complete the unit
	 	 	 
	 	−	General
    workmanship will be of good quality and appearance with the following listing a number of standards adhered to by Stewart
    & Stevenson:


 


	 	o	Flame
    cut edges shall be ground smooth
	 	 	 
	 	o	Sharp
    corners and edges to which operators and mechanics are vulnerable shall be ground smooth
	 	 	 
	 	o	Bolt
    holes shall be drilled or precision cut (laser, plasma, etc.) and sized according to Stewart & Stevenson engineering standards
	 	 	 
	 	o	Welds
    shall be of good quality and of sufficient strength
	 	 	 
	 	o	Use
    self-locking nuts where applicable


 


 


 



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Stewart
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	 	o	All
    hoses will be well supported with support type clamps
	 	 	 
	 	o	No
    sweated or brazed type hydraulic fittings will be used
	 	 	 
	 	o	All
    hydraulic hose assemblies will have swivel ends
	 	 	 
	 	o	All
    hoses will be protected by well-secured rubber sleeves to prevent rubbing by frame, etc.
	 	 	 
	 	o	Hydraulic
    reservoir to be constructed plate with sight level gauge, cleanouts, vent, fill cap, etc.


 


	 	−	The
    priming and painting of the equipment as per Stewart & Stevenson’s standard paint specifications


 


	 	o	Level
    1 – Urethane Paint System


 


	 	−	The
    complete testing of the equipment at the Stewart & Stevenson, plant in Houston, Texas, USA.


 


	1.6		FLUID
                                         END PLATFORM (OPTIONAL)



 


The
slide out platform allows an operator to have access to the main pump during maintenance. Modifications to the pump mount bracket
and hose routings are required for the installation of the platform


 


	1.7		BLEED
                                         VALVE (OPTIONAL)



 


Replace
TX Carbide Valve for 2x1 Bleed Valve


 


 


 




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Stewart
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MODEL
MT-102HP, HIGH-POWER, 100 BPM TRAILER-MOUNTED BLENDER WITH ACCUFRAC 

AUTOMATIC BLENDER CONTROL SYSTEM, CAT TIER IV ENGINES


 








 


	2.0		DESCRIPTION



 


The
Stewart & Stevenson Model MT-102HP is a trailer-mounted 100 bbl/min fracturing blender designed to mix slurries for fracturing
treatments. This system is capable of handling a wide array of tasks associated with complex fracturing operations in harsh oilfield
conditions. The unit is capable of operating in temperature ranges of -4☐F (-20°C) to 115☐F (46°C). This unit
is equipped with 8 inch pipe and a total power rating of 1,400 BHP (minimum). The unit is designed to pump inhibited acid.


 


	Performance
    characteristics
	Maximum
    rate†	 	>100
    bbl/min	 	>15.9m3/
    min
	Maximum
    proppant input	 	21,250
    lbs/min	 	9,600
    kg/ min
	Maximum
    concentration*	 	20
    PPA	 	2400
    kg/ m3


 


†
- Pumping clean water


‡
- Maximum rate and maximum concentration are not concurrent ratings


 


 


 




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Stewart
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	Approximate
    Dimensions
	Length	 	43’-7”	 	13.3
    m	 
	Width	 	8’-6”	 	2.6
    m	 
	Height	 	13’-9”	 	4.2
    m	 


 


 


 





	2.1		TRAILER



 


A
high strength twin-beam trailer designed specifically for this unit with I-beam cross members shall carry all components described
in these specifications. All equipment mounting systems are incorporated into trailer frame.


 


	 	−	Components:



 


	 	o	Rear
    bumper
	 	 	 
	 	o	Two
    air tank brake system
	 	 	 
	 	o	ABS
    brake system
	 	 	 
	 	o	Air
    ride Suspension
	 	 	 
	 	o	Automatic
    slack adjusters



 


	 	−	Tow
    eye/loop
	 	 	 
	 	−	11
    R 22.5 Tires
	 	 	 
	 	−	All
    required lighting



 


	 	o	DOT
    wiring and lights
	 	 	 
	 	o	Side
    marker lights
	 	 	 
	 	o	Stop
    lights
	 	 	 
	 	o	Tail
    lights
	 	 	 
	 	o	Turn
    signal lights
	 	 	 
	 	o	Mid-point
    turn signal lights
	 	 	 
	 	o	Reflectors
    to meet current DOT requirements 



 


	 	−	Pin
    Berg connector
	 	 	 
	 	−	Air
    connections mounted
	 	 	 
	 	−	Front
    and rear fenders
	 	 	 
	 	−	Landing
    legs: two speed manual 


 


 


 




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Stewart
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	2.2		DRIVE
                                         SYSTEM



 


This
unit is equipped with two deck-mounted engines; one is used to power the unit hydraulic drive system and one to power the discharge
pump.


 


	2.2.1		DISCHARGE
                                         PUMP ENGINE



 


A
Caterpillar, Tier IV Final four-cycle diesel engine is installed on the lower section of the trailer. The drive system includes
a clutch, a heavy-duty Spicer or equivalent driveline, and gear reduction box. The engine has the following performance characteristics
and features:


 


	 	−	Rated
    800 BHP
	 	 	 
	 	−	EPA
    Tier IV Final compliant
	 	 	 
	 	−	Electronic
    engine management system 
	 	 	 
	 	−	Electronic
    throttle control
	 	 	 
	 	−	Residential
    grade exhaust system with stainless steel flex connections 
	 	 	 
	 	−	Dry-type
    air cleaner assembly
	 	 	 
	 	−	Primary
    and secondary fuel filtration system with moisture separator
	 	 	 
	 	−	Cooling
    system designed for use up to maximum rated ambient temperature 
	 	 	 
	 	−	Radiator
    fan guards


 


	2.2.2		HYDRAULIC
                                         DRIVE ENGINE



 


A
Caterpillar, Tier IV Interim four-cycle diesel engine with a pump drive adaptation box is installed on the deck of the unit to
power the hydraulic systems. This engine has the following performance characteristics:


 


	 	−	Rated
    755 BHP
	 	 	 
	 	−	EPA
    Tier IV Interim compliant
	 	 	 
	 	−	Electronic
    engine management system
	 	 	 
	 	−	Electronic
    throttle control
	 	 	 
	 	−	Residential
    grade exhaust system with stainless steel flex connections
	 	 	 
	 	−	Dry-type
    air cleaner assembly
	 	 	 
	 	−	Air
    compressor system (compressor, governor, regulator/filter, dryer, and receiver)
	 	 	 
	 	−	Fuel
    filtration system
	 	 	 
	 	−	Cooling
    system designed for use up to maximum rated ambient temperature
	 	 	 
	 	−	Radiator
    fan guards


 


 


 




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Stewart
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	2.2.3		HYDRAULIC
                                         SYSTEM



 


A
complete hydraulic system is installed on this unit and includes hydraulic pumps which power the hydraulic motors driving the
following:


 


	 	−	Suction
    pump
	 	 	 
	 	−	Auger
    drive, raise, and lower
	 	 	 
	 	−	Mixing
    chamber agitator
	 	 	 
	 	−	Dry
    and liquid chemical feeders
	 	 	 
	 	−	Valve
    actuators


 


A
hydraulic oil cooler, reservoir, hydraulic filters, relief and control valves and all necessary hoses and fittings are included
in this hydraulic system.


 


	2.2.4		FUEL
                                         SYSTEM



 


A
300-gallon capacity (aluminum tanks) fuel system is installed on the unit. Tanks meet DOT requirements. A crossover hose system
with ball valves and guards is utilized.


 


	2.3		MIXING
                                         SYSTEM



 


	2.3.1		BLENDER
                                         TUB



 


This
unique Stewart & Stevenson cylindrical blender tub assembly utilizes a tub within a tub design concept to ensure complete
and consistent blending of even the highest of density slurries. This tub design combines the principals of high surface areas
to ensure low aeration mixtures with a low volume capacity to prevent inconsistent slurry blending. This combination ensures that
the slurry remains in the blending tub for a minimal period of time thus improving the accuracy of the unit measuring, additive
and control systems.


 


Clear
fluid enters the tub from the side and follows a radial path within the outer fluid chamber. As the fluid circulates around this
outer chamber, it flows over the upper radial lip of this chamber, into the inner slurry chamber flowing down the inclined sides
of this chamber and co-mingling with the proppants as they are fed into this chamber. Due to the large surface area of the sloping
sides of this inner radial slurry chamber, the proppant will be thoroughly wetted without the fluid being unnecessarily aerated.


 


The
pre-wetted proppant/fluid mixture flows down the sides of the inner slurry chamber until it reaches the hydraulically driven agitation/mixing
assembly installed in the base section of the inner slurry chamber. This agitation/mixing system will thoroughly and consistently
mix the slurry into a homogeneous mixture with a minimum of aeration prior to entering the suction manifold of the discharge centrifugal
via the bottom open throat section of the inner radial slurry tubs.


 


 


 




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Stewart
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This
6-barrel volumetric capacity blender tub design will mix slurries at concentrations of up to 20 PPA (2,400 kg/m3).


 


The
blender tub also incorporates an automatic fluid level control system that functions by adjusting the suction rate to compensate
for the level of fluid in the blender tub. The level is adjustable with automatic control from approx. 2 BBL to 6 BBL. The tub
level is measured using a float type measurement system.


 


Chemical
additives from the dry and liquid additive systems as described in this proposal are also fed into this blender tub assembly.


 


The
blender tub assembly is installed on the deck near the rear of the unit.


 


Screw
type augers carry proppant from a hopper at the base of the augers into the blender tub.


 


	2.3.2		PROPPANT
                                         LOADING AUGERS



 


Three
hydraulically driven variable speed augers are installed at the rear of the unit. Each auger is equipped with a speed sensor and
cable for connection to the rate and total meters mounted in the control console and to the AccuFracTM blender control system.
At the base of the augers is a steel hopper that allows proppant trucks to feed proppant into the blender.


 


The
augers have the following approximate proppant delivery characteristics with 20/40 mesh silica sand (actual delivery varies with
proppant type and condition):


 


	Auger	 	Size	 	Pitch	 	Minimum
    Rate @ 10 RPM	 	Maximum
    Rate @ 330 RPM
	1	 	12”	 	Full	 	400
    lbs/min	 	180
    kg/min	 	9,400
    lbs/min	 	4250
    kg/min
	2	 	12”	 	Half	 	200
    lbs/min	 	90
    kg/min	 	4,700
    lbs/min	 	2130
    kg/min
	3	 	12”	 	Full	 	400
    lbs/min	 	180
    kg/min	 	9,400
    lbs/min	 	4250
    kg/min’


 


This
auger assembly is hydraulically raised and lowered into the appropriate positions for either highway or blending purposes. A mechanical
locking arrangement is installed to hold the augers in transport position.


 


	2.3.3		SUCTION
                                         PUMP AND MANIFOLDS



 


Installed
on the side of the unit is a hydraulically driven 12” x 12” suction centrifugal pump capable of pumping fluids from
supply tanks to either the blender tub or to triplex pumping units.


 


 


 




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Stewart
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Mounted
on the suction side of this pump is a suction manifold equipped with ten 4” fig. 206 winged input connections with butterfly
valves. Also, two 8” winged connections are included in this manifold.


 


The
discharge side of this suction is directly piped to the above described blender tub with a valved bypass line installed in between
the discharge lines of the suction and discharge centrifugal pumps for closed system pumping of inhibited acids and other materials
directly from auxiliary tanks to triplex pumps, etc. This valve is hydraulically activated for immediate change to flushing operations
if required.


 


	2.3.4		DISCHARGE
                                         PUMP AND MANIFOLDS



 


A
14” x 12” centrifugal “XP” discharge pump provides downstream pressure. The suction side of this discharge
centrifugal pump is connected to the bottom of the blender tub. The discharge side of the pump is connected to a discharge manifold.


 


The
discharge manifold is equipped with twelve 4” connections, each with a 4” butterfly valve and a 4” Fig. 206
union threaded connection. Installed close to the discharge of the discharge centrifugal pump is a 3” bypass/recirculation
line to the blender tub.


 


A
manual valve is installed in the discharge piping before the discharge manifold and after the pre-gel line and LAS.


 


	2.3.5		MONITORING
                                         DEVICES



 


Installed
in-between the unit suction manifold and the blender tub is a Rosemount (or equivalent) magnetic flow meter.


 


Installed
in the discharge line from the discharge centrifugal pump prior to the discharge manifold is a vertically mounted nuclear type
200 MCI densitometer and a Rosemount (or equivalent) magnetic flow meter.


 


	2.4		DRY
                                         CHEMICAL ADDITIVE SYSTEM



 


The
unit has two variable-speed, hydraulically driven, stainless steel, dry additive feeders equipped with, a hopper and a speed sensor
and cable for connection to the dry additive rate and total digital meters system installed on the unit control console and AccuFracTM
control system. These feeders are of the following specifications:


 


	System	 	Model	 	Delivery†
    

    (per revolution)	 	Minimum
    rate†

    (@10 RPM)	 	Maximum
    rate†

    (@ 120 RPM)
	1	 	101-0-E	 	0.05
    lbs	 	0.023
    kg	 	0.5
    lbs/min	 	0.23
    kg/min	 	5.5
    lbs/min	 	2.5
    kg/min
	2	 	101-1-M	 	1.4
    lbs	 	0.64
    kg	 	14
    lbs/min	 	6.4
    kg/min	 	160
    lbs/min	 	73
    kg/min


 


†
- assumes a material with a bulk density of 75 lbs/ft3


 


 


 




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Stewart
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	2.5		LIQUID
                                         CHEMICAL ADDITIVE SYSTEM



 


The
unit is equipped with four chemical injection systems each complete with Micromotion coriolis flow meters and transmitters as
follows:


 


	System	 	Type	 	Model	 	Maximum
    rate	 	Flow
    meter
	1	 	Progressing
    cavity	 	2WL2-SSF
    (Viton)	 	3
    gal/min	 	T050
	2	 	Progressing
    cavity	 	2WL3-SSF
    (Viton)	 	5
    gal/min	 	T050
	3	 	Progressing
    cavity	 	2WL3-SSF
    (Viton)	 	5
    gal/min	 	T050
	4	 	Progressing
    cavity	 	2WL6-SSF
    (Viton)	 	35
    gal/min	 	T075


 


The
liquid additive pumps are equipped with camlock (Autolock) connections for pumping chemicals from external sources. A 110 gallon
(minimum) tank is installed on the unit for chemical flush operations.


 


The
liquid additive pumps have the following discharge location connections:


 


	Quantity	 	Location	 	Connection
    type
	4	 	Mixing
    tub	 	1”
    Camlock
	2	 	Suction
    manifold	 	1”
    Camlock
	2	 	Discharge
    pump inlet	 	1”
    Camlock
	1	 	Discharge
    manifold	 	1”
    Camlock


 


	2.6		CONTROLS/INSTRUMENTATION
                                         SYSTEM 2.6.1 CONTROLS



 


Controls
utilized on this unit are as listed below:


 


	 	−	Power
    switch
	 	 	 
	 	−	Engine
    throttle
	 	 	 
	 	−	Engine
    shutdown - normal
	 	 	 
	 	−	Engine
    shutdown - emergency
	 	 	 
	 	−	Auto/manual
    tub level switch
	 	 	 
	 	−	Suction
    pump speed
	 	 	 
	 	−	Auger
    auto/manual control switches
	 	 	 
	 	−	Manual
    auger speed
	 	 	 
	 	−	Auger
    lift control
	 	 	 
	 	−	Agitation/Mixing
    System controls
	 	 	 
	 	−	Work
    lights
	 	 	 
	 	−	Liquid
    and dry chemical auto/manual control switch
	 	 	 
	 	−	Manual
    liquid and dry chemical rate
	 	 	 
	 	−	Flow
    meter selector switches (suction and discharge)
	 	 	 
	 	−	AccuFracTM
    Automated blender control system


 


Note:
The AccuFracTM automated control system has two touch sensitive displays/interfaces installed in the control console.


 


 


 




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Stewart
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	2.6.2		INSTRUMENTATION



 


Instrumentation
to be included with this unit is as listed below. All instrumentation is in English units.


 


	 	−	Voltmeter
	 	 	 
	 	−	Engine
    oil pressure
	 	 	 
	 	−	Engine
    water temperature
	 	 	 
	 	−	Engine
    tachometer 
	 	 	 
	 	−	Fuel
    level
	 	 	 
	 	−	Discharge
    rate
	 	 	 
	 	−	Discharge
    total (with reset) 
	 	 	 
	 	−	Suction
    rate
	 	 	 
	 	−	Suction
    total (with reset) 
	 	 	 
	 	−	Hydraulic
    temperature
	 	 	 
	 	−	Air
    pressure
	 	 	 
	 	−	Suction
    pressure
	 	 	 
	 	−	Discharge
    pressure
	 	 	 
	 	−	Dry
    chemical rate
	 	 	 
	 	−	Dry
    chemical total (with reset)
	 	 	 
	 	−	Liquid
    chemical rate
	 	 	 
	 	−	Liquid
    chemical total (with reset)


 


	2.7		ACCUFRACTM
                                         SYSTEM



 


The
AccuFracTM system automates the blender by controlling proppant and chemical delivery as well as the fluid level in the mixing
chamber.


 


The
AccuFracTM blender control system is a microprocessor-based system that utilizes two touch-sensitive 8.5” x 6.25”
graphical displays. The software and flat panel display are designed for simple operation.


 


The
AccuFracTM blender control system is interactive in that the job parameters may be adjusted during the job.


 


 


 




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Stewart
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This
electronic hardware and software package, developed by Stewart & Stevenson to the most up to date field requirements, will
allow this blender to carry out complicated stimulation programs including “Ramp Fracs” without operator assistance
during the job.


 


The
hardware is rugged and protected in NEMA 4X enclosures. The ambient temperature range is -40°C to +50°C for operation.


 


The
system comprises two elements. Automatic Density Control (ADC) enables the blender to deliver slurry densities according to pre-programmed
patterns regardless of density and flow rate changes. Automatic Chemical Control (ACC) enables the blender to deliver liquid and
dry chemical additives according to pre-programmed schedules expressed as a ratio of the base fluid rate.


 


	2.7.1		AUTOMATIC
                                         DENSITY CONTROL (ADC)



 


When
in the AUTOMATIC mode, the ADC computer calculates the proppant delivery rates that are required to maintain the user-programmed
density. The operator programs the beginning and ending density values, as well as the length for up to 100 individual stages.
Each stage has the following user-programmable properties:


 


	 	−	Volume
    per stage
	 	 	 
	 	−	Proppant
    specific gravity
	 	 	 
	 	−	Proppant
    bulk density
	 	 	 
	 	−	Fluid
    specific gravity
	 	 	 
	 	−	Starting
    density
	 	 	 
	 	−	Ending
    density


 


The
ADC job-monitoring screen allows the operator to view:


 


	 	−	Volume
    per stage
	 	 	 
	 	−	Current
    stage and number of stages
	 	 	 
	 	−	Suction
    rate
	 	 	 
	 	−	Discharge
    rate
	 	 	 
	 	−	Fluid
    specific gravity
	 	 	 
	 	−	Target
    density
	 	 	 
	 	−	Measured
    density (measured by the densitometer)
	 	 	 
	 	−	Calculated
    density


 


Each
proppant delivery auger is equipped with a manual/automatic select switch. If one of the augers is set for manual control, the
ADC will automatically adjust the speed of the remaining automatic control augers to maintain the pre-programmed slurry density
for the current stage and following stages of the job. The operator can manually control the speed of the manual auger.


 


 


 




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Stewart
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The
ADC system is capable of controlling slurry density in step, ramp, or fixed configuration regardless of blender output flow rate.
In the step mode the density is maintained as a constant throughout each stage. When the next stage begins, the ADC controls adjust
the proppant flow rate to achieve the next programmed density. The ADC unit is designed and programmed to eliminate bounce at
step changes. This is accomplished by initial proppant delivery adjustment being set with computed values and “trimmed out”
with sensor reading.


 


When
operating a ramp type job, the ADC unit controls the proppant delivery to achieve the desired stage start density. As the stage
progresses, the ADC incrementally increases proppant flow rate as required so that the finish density is attained at the end of
the stage. A series of ramp stages can be interconnected to produce an “S” shape density curve.


 


	2.7.2		AUTOMATIC
                                         CHEMICAL CONTROL (ACC)



 


When
in the AUTOMATIC mode, the ACC controller calculates the chemical injection rates that are required to maintain the user-programmed
chemical ratios. The operator programs the concentration values, as well as the length for up to 50 individual stages for each
of up to 6 chemical additives being controlled. Each chemical control has an individual manual override. Each stage has the following
user-programmable properties:


 


	 	−	Volume
    per stage
	 	 	 
	 	−	Chemical
    concentration ratio (parts per 1000)
	 	 	 
	 	−	Dry
    chemical bulk density (dry additive only)


 


The
ACC job-monitoring screen allows the operator to view:


 


	 	−	Job
    status
	 	 	 
	 	−	Chemical
    type
	 	 	 
	 	−	Current
    stage and number of stages
	 	 	 
	 	−	Individual
    flow rate for each chemical 
	 	 	 
	 	−	Total
    amount added of each chemical


 


	2.8		UNITIZATION
                                         AND COMPLETION



 


The
above unit shall be fully assembled, unitized and completed to Stewart & Stevenson’s specifications:


 


This
shall include the following items (if these items are already detailed above, they shall not be duplicated):


 


 


 




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Stewart
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	 	−	Decking
    on the unit
	 	 	 
	 	−	Installation
    of lights for 24 hour use
	 	 	 
	 	−	Installation
    of all other electrical systems
	 	 	 
	 	−	Installation
    of all pneumatic systems 
	 	 	 
	 	−	Installation
    of all hydraulic systems
	 	 	 
	 	−	Installation
    of all necessary hose racks as per available space
	 	 	 
	 	−	Supply
    of all operating oils, coolants and other operating fluids
	 	 	 
	 	−	All
    steel and miscellaneous fittings to complete the unit
	 	 	 
	 	−	All
    labor to complete the unit
	 	 	 
	 	−	General
    workmanship will be of good quality and appearance with the following listing a number of standards adhered to by Stewart
    & Stevenson:


 


	 	o	Flame
    cut edges shall be ground smooth
	 	 	 
	 	o	Sharp
    corners and edges to which operators and mechanics are vulnerable shall be ground smooth
	 	 	 
	 	o	Bolt
    holes shall be drilled or precision cut (laser, plasma, etc.) and sized according to Stewart & Stevenson engineering standards
	 	 	 
	 	o	Welds
    shall be of good quality and of sufficient strength
	 	 	 
	 	o	Use
    self-locking nuts where applicable
	 	 	 
	 	o	All
    hoses will be well supported with support type clamps
	 	 	 
	 	o	No
    sweated or brazed type hydraulic fittings will be used
	 	 	 
	 	o	All
    hydraulic hose assemblies will have swivel ends
	 	 	 
	 	o	All
    hoses will be protected by well-secured rubber sleeves to prevent rubbing by frame, etc.
	 	 	 
	 	o	Hydraulic
    reservoir to be constructed plate with sight level gauge, cleanouts, vent, fill cap, etc.


 


	 	−	The
    priming and painting of the equipment as per Stewart & Stevenson’s standard paint specifications


 


	 	o	Level
    1 – Urethane Paint System


 


	 	−	The
    complete testing of the equipment at the Stewart & Stevenson, plant in Houston, Texas, USA.


 


	2.9		CABIN
                                         WITH ACCUFRAC



 


The
above unit shall be fully assembled with control cabin approximately 72” wide x 58” deep x 82” high designed
to withstand typical trailer mounted, off-road oilfield and environmental conditions. This cabin is includes a structural frame
and has an aluminum outer cover and has fully insulated walls, roof, floor, windows and door. All joints are sealed to prevent
water and wind leaks. All wiring and hosing is externally accessible. The cabin has one side locking door with window, and a large
front window. All windows are dual-pane, insulated safety glass.


 


Also
installed in the cabin is the AccuFracTM system to automate the unit by controlling chemical delivery as well as the fluid level
in the mixing chamber


 


 


 




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Stewart
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	2.10		UPGRADE
                                         DRY AND LIQUID ADDITIVE SYSTEM



 


Unit
is upgraded with Waukesha pumps as follows: 1 dry and 5 liquid


 


	System	 	Model	 	Delivery†

    (per revolution)	 	Minimum
    rate†

    (@10 RPM)	 	Maximum
    rate†

    (@ 120 RPM)
	1	 	101-0-E	 	0.05
    lbs	 	0.023
    kg	 	0.5
    lbs/min	 	0.23
    kg/min	 	5.5
    lbs/min	 	2.5
    kg/min


 


	System	 	Type	 	Model	 	Maximum
    rate	 	Flow
    meter
	1	 	Rotary
    Gear	 	006U1
    (Waukesha)	 	6
    gal/min	 	T050
	2	 	Rotary
    Gear	 	006U1
    (Waukesha)	 	6
    gal /min	 	T050
	3.	 	Rotary
    Gear	 	006U1
    (Waukesha)	 	6
    gal/min	 	T050
	4	 	Rotary
    Gear	 	015U1
    (Waukesha)	 	9
    gal/min	 	T050
	5	 	Rotary
    Gear-	 	030U1
    (Waukesha)	 	36
    gal/min	 	T075


 


 


 




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Stewart
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MODEL
CT-5CAS/HYD, TRAILER-MOUNTED HYDRATION UNIT AND


CHEMICAL
ADDITIVE SYSTEM


 





 


	3.0		DESCRIPTION



 


The
Stewart & Stevenson CT-5CAS/HYD is a trailer-mounted hydration unit designed to hydrate oilfield gel and add fracturing chemicals
for use in onshore fracturing fluid operations. The unit is capable of operating in temperature ranges of -4°F (-20°C)
to 115°F (46°C).


 


Water
enters the unit through an inlet manifold that provides ten 4” and two 8” ports with valves and Fig. 206 connections.
The inlet manifold also provides a high-rate polymer gel injection port. The water/gel slurry is pumped into the hydration tank
through a magnetic flow meter and a backup turbine flow meter via a 10” X 12” centrifugal pump.


 


The
hydration tank is a 200 barrel (nominal), multi-chamber, mixing vessel, with an alternating over/under torture path. The tank
includes mixing paddles to eliminate “dead zones” and increase fluid shear. The bottom of each weir is equipped with
openings and doors that can be hydraulically raised for complete draining of the tank. A walkway with safety railing provides
access to the entire tank.


 


The
hydrated gel leaves the last chamber through a floor-mounted sump and is gravity fed through the discharge manifold which provides
ten 4” and two 8” ports with valves and Fig. 206 connections.


 


The
unit is equipped with two chemical storage tanks, a chemical flush tank and five chemical pumping circuits with flow meters and
hose reels. The operator’s console is located on a platform at the rear of the unit.


 


The
approximate physical dimensions of this unit are as follows:


 


 


 




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Stewart
& Stevenson Manufacturing Technologies LLC


 


	Approximate
    Dimension
	Length	 	49’
    2”	 	15
    m
	Width	 	8’6”	 	2.6
    m
	Height	 	13’
    6”	 	4.1
    m
	Weight	 	56,000
    lbs	 	25,
    500 kg





 





 





	3.1		TRAILER
                                         SYSTEM



 


The
trailer is a heavy-duty, drop-deck trailer with fifth wheel towing pin to suit a customer-supplied truck tractor.


 


This
trailer is suitable for carrying all of the equipment detailed in this specification. The trailer is designed to be towed behind
a customer-supplied truck tractor and has the following features:


 


	 	−	Rear
    tandem axles
	 	 	 
	 	−	Air
    Brake System
	 	 	 
	 	−	2”
    SAE King pin with 3/8 rub plate (may be changed to suit customer truck tractor)
	 	 	 
	 	−	Lights,
    stop/turn
	 	 	 
	 	−	Mud
    flaps
	 	 	 
	 	−	Rear
    bumper
	 	 	 
	 	−	All
    required DOT lights and reflectors
	 	 	 
	 	−	A
    300-gallon capacity fuel system


 


	 	o	level
    indicators
	 	 	 
	 	o	breathers
	 	 	 
	 	o	fill
    and drain connections
	 	 	 
	 	o	fuel
    distribution system including filters, suction and return connections


 


	 	−	Battery
    system


 


	 	o	two
    industrial batteries
	 	 	 
	 	o	battery
    trays
	 	 	 
	 	o	cables
    and disconnects


 


 


 



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Stewart
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	3.2		POWER
                                         SYSTEM



 


	3.2.1		DIESEL
                                         ENGINE



 


The
unit is equipped with a deck-mounted Detroit Diesel Series 60 diesel engine that is used to power the unit hydraulic drive system.
Details are as follows:


 


	 	−	Rated
    600 BHP @ 2100 RPM
	 	 	 
	 	−	Electronic
    engine management system
	 	 	 
	 	−	Electronic
    Throttle Control
	 	 	 
	 	−	Residential
    grade exhaust system with stainless steel flex connections
	 	 	 
	 	−	Dry-type
    air cleaner assembly
	 	 	 
	 	−	Air
    compressor system (compressor, governor, regulator/filter, dryer, and receiver)
	 	 	 
	 	−	Fuel
    filtration system
	 	 	 
	 	−	Cooling
    system rated for maximum ambient temperature
	 	 	 
	 	−	Radiator
    fan guards


 


	3.2.2		HYDRAULIC
                                         SYSTEM



 


A
complete hydraulic system is installed on this unit and includes hydraulic pumps which power the hydraulic motors driving the
following:


 


	 	−	One
    Suction Centrifugal Pump
	 	 	 
	 	−	Five
    Chemical Additive Pumps
	 	 	 
	 	−	Mixing
    System (hydration tank and polymer tanks)


 


	3.3		CHEMICAL
                                         ADDITIVE SYSTEM



 


	3.3.1		TANKS



 


Three
tanks are securely mounted to the trailer and equipped with fill openings and outlet/inlet connections. Details of the individual
tanks are as follows:


 


Polymer


 


	 	−	1,000
    gallon capacity (two tank combination)
	 	 	 
	 	−	Two
    hydraulically driven dual-tier mixers (one per tank)
	 	 	 
	 	−	Stainless
    steel construction
	 	 	 
	 	−	Outlet
    connection with valve



 


 


 



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Stewart
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Chemical
Cleanout


 


	 	−	100
    gallon capacity
	 	 	 
	 	−	2”
    Suction connection


 








	3.3.2		CHEMICAL
                                         PUMPING SYSTEM



 


The
following chemical pumping system is installed on the unit:


 


	System	 	Function	 	Type	 	Max
    Rate
 gal/min 1/min	 	Flow
    Meter
	1	 	Polymer	 	2WL6-SSF
    (Viton)	 	35	132	 	1”
    Coriolis
	2	 	General	 	2WL2-SSF
    (Viton)	 	3.0	11	 	1/2”
    Coriolis
	3	 	General	 	2WL3-SSF
    (Viton)	 	5.0
    	19	 	1/2”
    Coriolis
	4	 	General	 	2WL3-SSF
    (Viton)	 	5.0	19	 	1/2”
    Coriolis
	5	 	General	 	2WL3-SSF
    (Viton)	 	5.0	19	 	1/2”
    Coriolis


 


Each
of these pumps is fully controllable, either manually from the control panel, or automatically from the AccuFracTM ACC module.


 


The
suction side of the polymer pump is connected to the two polymer tanks and includes an external 2” camlock (Autolock) connection.
The suction side of each of the chemical pumps is equipped with a camlock (Autolock) connection for pumping from external sources.


 


Primary
chemical injection consists of polymer injection at the inlet of the suction centrifugal pump and all other chemicals are injected
in the discharge manifold. In addition, the discharge of each chemical pump is connected to a hose reel located on the discharge
side of the unit for operation in which chemicals are added to the blender. Each of the hose reels is equipped with 30’
of discharge hose, ball valve, and camlock connection. Selection between the two discharge options is made by a manual 3-way valve
for each chemical.


 


	3.4		HYDRATION
                                         SYSTEM



 


	3.4.1		HYDRATION
                                         TANK



 


The
200 barrel capacity, steel, hydration tank has the following features:


 


	 	−	Steel
    support members
	 	 	 
	 	−	Sloped
    bottom with a drain sump outlet to allow complete discharge of tank volume
	 	 	 
	 	−	Capped
    drain on drain sump to allow for easy tank clean out with additional valved drain on opposite side of tank
	 	 	 
	 	−	Rounded
    vertical corner construction
	 	 	 
	 	−	Side
    wall bracing
	 	 	 
	 	−	Barrel
    markers
	 	 	 
	 	−	Automatic
    tub-level system to control fluid flow rate into tank by adjusting the supply centrifugal speed
	 	 	 
	 	−	Three
    dual-tier mixers
	 	 	 
	 	−	Hydraulic
    landing gear for use during pumping operations
	 	 	 
	 	−	Torture
    path system with hydraulic gates (where needed)



 


 


 



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Stewart
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	3.4.2		MANIFOLDS



 


An
input manifold provides for connection to the customer water supply. The manifold is equipped with ten 4” Fig. 206 series
wing connections and two 8” winged connections (each with caps and/or valves).


 


A
discharge manifold is installed on the opposite side of the trailer. The manifold is equipped with ten 4” Fig. 206 series
wing connections and two 8” winged connections (each with caps and/or valves).


 


The
process piping on this unit includes the following:


 


	 	−	A
    valved crossover line between the suction and discharge manifolds to circulate the hydration tank
	 	 	 
	 	−	A
    valved hydration tank bypass line located after the polymer injection point and flow meter for bypassing the hydration tank
    while gelling
	 	 	 
	 	−	Two
    4” discharge connections located on the suction side of the unit after the polymer injection point and flow meter for
    gelling frac tanks
	 	 	 
	 	−	A
    hydration tank cutoff valve


 


	3.4.3		CENTRIFUGAL
                                         PUMP



 


A
12” x 12” centrifugal pump is installed on the suction manifold. The pump is capable of supplying up to 100 bbl/min
with proper head pressure and hose installation. The following components are installed:


 


	 	−	One
    magnetic flow meter
	 	 	 
	 	−	One
    backup 8” turbine flow meter
	 	 	 
	 	−	One
    12” blank with Victaulic connections


 


	3.5		RHEOLOGY
                                         KIT



 


A
process sample line, driven by a 3 to 5 gallon per minute gear pump, extracts a fluid sample from the hydration tank. The following
instruments are installed in the process sample line:


 


	 	−	Viscometer,
    Model TT-100
	 	 	 
	 	−	pH
    probe


 


 


 




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Stewart
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	3.6		CONTROL
                                         SYSTEM



 


	3.6.1		CONTROL
                                         CONSOLE



 


A
control and instrumentation console is installed on the trailer.


 


	3.6.2		INSTRUMENT
                                         AND CONTROL CONSOLE



 


A
stainless steel instrument and control panel is installed in the control console. The panel provides full manual control of the
unit and an interface to the AccuFracTM control system, enabling automatic control of the unit. The instruments and controls include:


 


	 	−	Chemical
    additive flow rate meters
	 	 	 
	 	−	Chemical
    additive flow total meters
	 	 	 
	 	−	Chemical
    additive pump on/off and speed controls 
	 	 	 
	 	−	Base
    fluid flow rate meter
	 	 	 
	 	−	Base
    fluid flow total meter
	 	 	 
	 	−	Hydration
    tank mixers on/off and speed control 
	 	 	 
	 	−	Manual
    / Auto (hydration) polymer control
	 	 	 
	 	−	Manual
    / Auto (hydration) / Auto (blender) liquid chemical control


 


This
console includes all electrical signal and control connections (including a ground strap). The penetrations are environmentally
sealed; all wiring is permanently numbered (to match electrical wiring schematics); and all connections are on terminal strips.
All air connections are via bulkhead connections. This cabinet includes a connector for connection to a data acquisition and control
unit.


 


Additional
instrumentation and controls includes:


 


	 	−	Air
    pressure gauge
	 	 	 
	 	−	Hydraulic
    oil pressure gauge
	 	 	 
	 	−	Hydraulic
    oil temperature gauge (on hydraulic oil tank) 
	 	 	 
	 	−	Engine
    throttle
	 	 	 
	 	−	Electronic
    Display Modules (EDM’s)



 


	 	o	Engine
    tachometer
	 	 	 
	 	o	Engine
    lube oil pressure
	 	 	 
	 	o	Engine
    coolant temperature



 


	 	−	Engine
    stop
	 	 	 
	 	−	Engine
    emergency stop
	 	 	 
	 	−	Engine
    start


 


 


 




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Stewart
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	3.7		ACCUFRACTM
                                         SYSTEM



 


The
AccuFracTM system automates the unit by controlling chemical delivery as well as the fluid level in the mixing chamber.


 


The
AccuFracTM control system is a microprocessor-based system that utilizes a touch-sensitive 8.5” x 6.25” graphical
display. The software and flat panel display are designed for simple operation.


 


The
AccuFracTM control system is interactive in that the job parameters may be adjusted during the job.


 


This
electronic hardware and software package, developed by Stewart & Stevenson to the most up to date field requirements, will
allow this unit to carry out complicated stimulation programs without operator assistance during the job.


 


The
hardware is rugged and protected in NEMA 4X enclosures. The ambient temperature range is -40°C to +50°C for operation.


 


The
Automatic Chemical Control (ACC) module enables the unit to deliver liquid and dry chemical additives according to pre-programmed
schedules expressed as a ratio of the base fluid rate.


 


	3.7.1		AUTOMATIC
                                         CHEMICAL CONTROL (ACC)



 


When
in the AUTOMATIC mode, the ACC controller calculates the chemical injection rates that are required to maintain the user-programmed
chemical ratios. The operator programs the concentration values, as well as the length for up to 50 individual stages for each
of up to 6 chemical additives being controlled. Each chemical control has an individual manual override. Each stage has the following
user-programmable properties:


 


	 	−	Volume
    per stage
	 	 	 
	 	−	Chemical
    concentration ratio (parts per 1000) 
	 	 	 
	 	−	Dry
    chemical bulk density (dry additive only)


 


The
ACC job-monitoring screen allows the operator to view:


 


	 	−	Job
    status
	 	 	 
	 	−	Chemical
    type
	 	 	 
	 	−	Current
    stage and number of stages
	 	 	 
	 	−	Individual
    flow rate for each chemical
	 	 	 
	 	−	Total
    amount added of each chemical


 


 


 




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Stewart
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	3.8		UNIT.IZATION
                                         AND COMPLETION



 


The
above unit shall be fully assembled, unitized and completed to Stewart & Stevenson’s specifications:


 


This
shall include the following items (if these items are already detailed above, they shall not be duplicated):


 


	 	−	Decking
    on the unit
	 	 	 
	 	−	Installation
    of lights for 24 hour use
	 	 	 
	 	−	Installation
    of all other electrical systems 
	 	 	 
	 	−	Installation
    of all pneumatic systems
	 	 	 
	 	−	Installation
    of all hydraulic systems
	 	 	 
	 	−	Installation
    of all necessary hose racks as per available space
	 	 	 
	 	−	Supply
    of all operating oils, coolants and other operating fluids
	 	 	 
	 	−	All
    steel and miscellaneous fittings to complete the unit
	 	 	 
	 	−	All
    labor to complete the unit
	 	 	 
	 	−	General
    workmanship will be of good quality and appearance with the following listing a number of standards adhered to by Stewart
    & Stevenson:


 


	 	o	Flame
    cut edges shall be ground smooth
	 	 	 
	 	o	Sharp
    corners and edges to which operators and mechanics are vulnerable shall be ground smooth
	 	 	 
	 	o	Bolt
    holes shall be drilled or precision cut (laser, plasma, etc.) and sized according to Stewart & Stevenson engineering standards
	 	 	 
	 	o	Welds
    shall be of good quality and of sufficient strength
	 	 	 
	 	o	Use
    self-locking nuts where applicable
	 	 	 
	 	o	All
    hoses will be well supported with support type clamp
	 	 	 
	 	o	No
    sweated or brazed type hydraulic fittings will be used
	 	 	 
	 	o	All
    hydraulic hose assemblies will have swivel ends
	 	 	 
	 	o	All
    hoses will be protected by well-secured rubber sleeves to prevent rubbing by frame, etc.
	 	 	 
	 	o	Hydraulic
    reservoir to be constructed plate with sight level gauge, cleanouts, vent, fill cap, etc.


 


	 	−	The
    priming and painting of the equipment as per Stewart & Stevenson’s standard paint specifications


 


	 	o	Level
    1 – Urethane Paint System


 


	 	−	The
    complete testing of the equipment at the Stewart & Stevenson, plant in Houston, Texas, USA.


 


Standard
factory fill fluids and operating oils are included; please consult Stewart & Stevenson for alternative oils if required.


 


 


 




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Stewart
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	3.9		UPGRADE
                                         PUMPS AND SPARE POLYMER PUMP



 


The
above unit shall be fully assembled and include a spare progressive cavity pump as follows:


 


	System	 	Function	 	Type	 	Max
                                         Rate 

        gal/min
        1/min
	 	Flow
    Meter
	1	 	Polymer	 	2WL6-SSF
    (Viton)	 	35	132	 	1”
    Coriolis
	2	 	General	 	006U1
    (Waukesha)	 	6.0	23	 	1/2”
    Coriolis
	3	 	General	 	006U1
    (Waukesha)	 	6.0	23	 	1/2”
    Coriolis
	4	 	General	 	015U1
    (Waukesha)	 	9.0	34	 	1/2”
    Coriolis
	5	 	General	 	015U1
    (Waukesha)	 	9.0	34	 	1/2”
    Coriolis
	spare	 	Polymer	 	2WL6-SSF
    (Viton)	 	35	132	 	1/2”
    Coriolis


  




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Stewart
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MODEL
ET-40EXP, EXPANDABLE TRAILER-MOUNTED CONTROL AND DATA


ACQUISITION
CENTER


 


 


 





	4.0		DESCRIPTION



 


The
Stewart & Stevenson Model ET-40EXP is an expandable trailer-mounted control and data acquisition center capable of operating
in harsh oilfield environments. The unit provides operators an environmentally controlled area from which to control and monitor
well treatments. The unit is designed to operate fracturing pumps, blenders, chemical additive units, gel hydration, and data
acquisition. Also included is computer hardware for job design and frac analysis.


 


This
unit is capable of operating in an ambient temperature range of -4°F (-20°C) to +115°F (46°C) and for use over
non-grade road surface in the rough, windy, and dusty environments found in the oilfield.


 


While
operating at full capacity there shall be no components which vibrate excessively.


 


	Approximate
    Dimensions
	Length	43’
    0”	13.1
    m
	Width	8’6”	2.6
    m
	Height	13’6”	4.1
    m
	Weight	45,000
    lbs	20,500
    kg


  


	4.1		TRAILER



 


The
unit is mounted on a heavy-duty, steel frame trailer. Features of the trailer include:


 


	 	−	Tandem
    axle with air-ride suspension
	 	 	 
	 	−	Rear
    bumper with trailer hitch
	 	 	 
	 	−	Heavy-duty
    landing gear
	 	 	 
	 	−	2”
    kingpin with 18” set back
	 	 	 
	 	−	445/65R22.5
    tires


 


 


 




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Stewart
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	4.2		OPERATOR’S
                                         CABIN



 


The
operator’s cabin provides a climate-controlled environment for the control and computer equipment and provides a comfortable
operating environment for the oil well service engineers, operators, and customer representatives. The features of the environmental
enclosure include the following:


 


	 	−	Lightweight
    aluminum frame and shell 
	 	 	 
	 	−	Insulated
    ceiling, walls, and floor
	 	 	 
	 	−	Heavy-duty
    floor covering 
	 	 	 
	 	−	Windows
    on three sides
	 	 	 
	 	−	Two
    side doors, each with step well and lock 
	 	 	 
	 	−	A
    complete interior/exterior lighting system
	 	 	 
	 	−	Six
    exterior flood lights (two at the rear and two each side)
	 	 	 
	 	−	Desks,
    cupboards, work surfaces, shelves, seating, operator’s chairs 
	 	 	 
	 	−	Central
    air-conditioning/heating system
	 	 	 
	 	−	Signal
    bulkhead for connection to control and data acquisition systems 
	 	 	 
	 	−	Lockable
    interior and exterior compartments
	 	 	 
	 	−	Signal
    and clearance lights
	 	 	 
	 	−	Grounding
    system (ground stake)


 





 


	4.2.1		EXPANDABLE
                                         AREA



 


The
expandable trailer utilizes a hydraulic system to expand. The expandable work area contains computer network access, RS232 connection
and 110VAC power connection. The expandable trailer comes with three theater seats.


 


 


 




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Stewart
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	4.3		POWER
                                         SUPPLY SYSTEM



 


	4.3.1		GENERATOR
                                         SET



 


The
unit is powered by a diesel-driven generator located in a compartment separate from the operators.


 


	Basic
    Generator	 	Specification
	Nominal
    Rating	 	20
    kW
	Voltage	 	120
    VAC single-phase
	Frequency	 	60
    Hz
	Engine	 	Diesel
	Cooling	 	Radiator
	Starting
    system	 	Electric
    start with battery- and charge system


 


	4.3.2		SHORE-POWER
                                         SYSTEM



 


The
unit can be powered by a 120 VAC single-phase, 60 Hz external source via a shore-power connector located in the generator compartment.


 


	4.3.3		DC
                                         POWER SYSTEM



 


DC
power is supplied to the unit where required by a combination of the external equipment electrical system(s) and inverters.


 


	4.3.4		BATTERY
                                         BACKUP SYSTEM



 


.Power
to the computers is conditioned and protected against failure by an Uninterruptable Power Supply (UPS). In the event of a power
failure from either the generator or shore-power, the UPS will supply power to the computers for up to 30 minutes.


 


	4.4		COMPUTERS
                                         AND RELATED HARDWARE SYSTEM



 


The
computer network includes four rack-mounted computers and related hardware dedicated as follows:


 


	Computer	 	Function
	1	 	AccuFracPCTM
    (Data Acquisition, Blender, Hydration and Chemical Add Control)
	2	 	Engineering
    / Fracturing software
	3	 	Intelligent
    Pump Control system (IPC-PCTM)
	4	 	Backup
    computer for the IPC-PCTM system
	Note:
    provisions for connection to a laptop are provided


 


 


 




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Stewart
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	4.4.1		INDUSTRIAL
                                         PC COMPUTERS



 


Each
of the computer systems includes the following features:


 


	 	−	CDROM
    with writing capabilities
	 	 	 
	 	−	Current
    technology processor and hard drive
	 	 	 
	 	−	Mouse
	 	 	 
	 	−	Keyboard
	 	 	 
	 	−	Monitors


 


	4.4.2		MONITORS



 


The
following flat-screen LCD monitors are installed in the control unit:





 


	Monitor	 	Size	 	Function
	1	 	20”	 	AccuFracPCTM
	2	 	20”	 	AccuFracPCTM
	3	 	20”	 	AccuFracPCTM
	4	 	20”	 	AccuFracPCTM
    / Engineering (switchable)
	5	 	20”	 	Engineering
	6	 	20”	 	Engineering
	7	 	20”	 	Engineering
    with Repeater
	8	 	20”	 	AccuFracPCTM
    (mounted at pump control)
	9	 	19”	 	IPC-PCTM
    (touch-sensitive)
	10	 	19”	 	IPC-PCTM
    (touch-sensitive)
	11	 	19”	 	IPC-PCTM
    (touch-sensitive)


 


	4.4.3		PRINTERS



 


The
following printing and scanning devices are included in the computer package:


 


	Device	 	Paper
    Format	 	Type
	1	 	A3	 	Color
    LASER
	2	 	A4	 	Color
    LASER


 


	4.4.4		OPERATING
                                         SYSTEM



 


The
computers are supplied with a current Microsoft Windows operating system.


 


 


 




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Stewart
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	4.5		CONTROL
                                         AND DATA ACQUISITION PACKAGE



 


	4.5.1		ACCUFRACPCTM



 


AccuFracPCTM
is the computer-based interface to the AccuFracTM control system. The system is comprised of two blender control modules, two
CAS/hydration control modules, and a data acquisition module. The user has the ability to create custom control and monitoring
screens to suit application requirements.


 


The
data acquisition module includes a signal processing box that converts sensor signals into digital information that can be recorded
and displayed in the operator interface. The information can also be sent to the unit’s computer system. The module can
simultaneously read up to six frequency signals (e.g. magnetic pickups) and up to eight analog signals (e.g. pressure transducers).


 


	4.5.2		IPC-PCTM
                                         SOFTWARE



 


IPC-PCTM
is the computer-based interface to the IPCTM control system. The system controls up to 24 IPCTM-enabled fracturing pumps.


 


Fit-for-purpose
screens provide the operators and technicians all of the controls, gauges, and diagnostics required to operate and service the
equipment. The screens include:


 


Main
operator screen


 


	 	−	Torque
    converter status indicator
	 	 	 
	 	−	Deck
    engine tachometer
	 	 	 
	 	−	Pump
    pressure
	 	 	 
	 	−	Pump
    flow rate
	 	 	 
	 	−	Pump
    flow total
	 	 	 
	 	−	Engine
    throttle control
	 	 	 
	 	−	Transmission
    shifter
	 	 	 
	 	−	Brake
    control
	 	−	Engine
    emergency shutdown (hard wired palm button)
	 	 	 
	 	−	Engine
    normal shutdown
	 	 	 
	 	−	Engine
    start
	 	 	 
	 	−	Over-pressure
    interface 





 


 


 






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Diagnostic


 


	 	−	System
    fault condition indication
	 	 	 
	 	−	Engine
    monitoring
	 	 	 
	 	−	Pump
    monitoring
	 	 	 
	 	−	Transmission
    monitoring


 


	4.6		EXTERNAL
                                         CONNECTIONS



 


The
following external electrical connectors provide easy interface points:


 


	Quantity	 	Signal	 	Connector
	24	 	IPC
    Frac Control	 	8-Pin,
    Circular, Bayonet
	3	 	Serial
    Data Inputs	 	6-Pin,
    Circular, Bayonet
	2	 	Blender
    Control	 	3-Pin,
    Circular, Bayonet
	2	 	CAS
    / Hydration Control	 	3-Pin,
    Circular, Baronet
	6	 	Frequency
    Input	 	6-Pin,
    Circular, Bayonet
	8	 	Analog
    Input	 	6-Pin,
    Circular, Bayonet
	1	 	Shore
    Power	 	3-Pin,
    High Amperage


 


The
interface connectors are located in lockable compartments within easy reach of the ground.


 


	4.6.1		CABLES
                                         AND REELS



 


Nine
cable reel assemblies are installed in a lockable cabinet at the rear of the unit. Cable reel assemblies are include for the following:


 


	Quantity	 	Length	 	Function
	2	 	200
    feet	 	Blender
	2	 	200
    feet	 	Hydration
    or Chemical Additive System
	2	 	200
    feet	 	Pressure
    Transducer
	3	 	200
    feet	 	Auxiliary


 


 


 




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	4.6.2		SHIP
                                         LOOSE CABLE KIT



 


The
communication cable kit to stimulation spread is shipped loose as follows.


 


	Quantity	 	Length	 	Function
	6	 	8
    feet	 	RS485
    Extension
	6	 	200
    feet	 	RS485
	6	 	200
    feet	 	Clean
    Rate
	2	 	2
    feet	 	Clean
    Rate Splitter
	3	 	8
    feet	 	Frequency
    Signal Ext.
	3	 	8
    feet	 	Analog
    Signal Ext.
	3	 	200
    feet	 	Frequency
    Signal
	3	 	200
    feet	 	Analog
    Signal
	1	 	3
    feet	 	Splitter
    RS485


 


	4.7		ADDITIONAL
                                         EQUIPMENT



 


	4.7.1		SENSORS



 


Electronic
pressure transducers are included with the unit as follows:


 


	Pressure
    Transducers
	Quantity	 	2
	Signal
    Type	 	4-20
    mA
	Pressure
    Range	 	0
    to 15,000 PSI
	Connector	 	6
    Pin Circular Bayonet
	Process
    Connection	 	Fig.
    1502 Hammer Union


 


	4.7.2		FRAC
                                         COMMUNICATION SYSTEM



 


The
communication system features short range, line-of-site, 2-way radios. These rugged, self-contained units with flexible antennas
give personnel maximum freedom and mobility to operate equipment during a job. This system consists of the following components:


 


	Quantity	 	Type
	5	 	Single
    muff headset for intercom
	1	 	Radio
    base with 4 station intercom kit


  


 


 




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	4.7.3		FREQUENCY
                                         SIGNAL CALIBRATOR



 


A
handheld calibrator is included to allow technicians to test and maintain the signal inputs on the control and data acquisition
systems. The frequency calibrator can generate or read frequencies ranging from 1 count per minute to 100 kHz allowing it to be
used for a wide range of flow measuring instrumentation. The outputs are set using step and ramp keys allowing large and small
output changes to be made with ease.


 


		−	High
                                         accuracy source and read capability
	 	 	 
		−	Rugged,
                                         dust tight, water resistant
	 	 	 
		−	Easy
                                         to read LCD
	 	 	 
		−	easy
                                         operation even for infrequent users
	 	 	 
		−	Powered
                                         by a 9 Volt battery



 


	4.8		UNITIZATION
                                         AND COMPLETION



 


The
above unit shall be fully assembled, unitized and completed to Stewart & Stevenson’s specifications. This shall include
the following items (if these items are already detailed above, they shall not be duplicated):


 


	 	−	Decking
    on the unit
	 	 	 
	 	−	Installation
    of lights for 24 hour use
	 	 	 
	 	−	Installation
    of all other electrical systems
	 	 	 
	 	−	Installation
    of all pneumatic systems
	 	 	 
	 	−	Installation
    of all hydraulic systems
	 	 	 
	 	−	Installation
    of all necessary hose racks as per available space
	 	 	 
	 	−	Supply
    of all operating oils, coolants and other operating fluids
	 	 	 
	 	−	All
    steel and miscellaneous fittings to complete the unit
	 	 	 
	 	−	All
    labor to complete the unit
	 	 	 
	 	−	General
    workmanship will be of good quality and appearance with the following listing a number of standards adhered to by Stewart
    & Stevenson:


 


	 	o	Flame
    cut edges shall be ground smooth
	 	 	 
	 	o	Sharp
    corners and edges to which operators and mechanics are vulnerable shall be ground smooth
	 	 	 
	 	o	Bolt
    holes shall be drilled or precision cut (laser, plasma, etc.) and sized according to Stewart & Stevenson engineering standards
	 	 	 
	 	o	Welds
    shall be of good quality and of sufficient strength
	 	 	 
	 	o	Use
    self-locking nuts where applicable
	 	 	 
	 	o	All
    hoses will be well supported with support type clamps 
	 	 	 
	 	o	No
    sweated or brazed type hydraulic fittings will be used
	 	 	 
	 	o	All
    hydraulic hose assemblies will have swivel ends
	 	 	 
	 	o	All
    hoses will be protected by well-secured rubber sleeves to prevent rubbing by frame, etc.
	 	 	 
	 	o	Hydraulic
    reservoir to be constructed plate with sight level gauge, cleanouts, vent, fill cap, etc.


 


	 	−	The
    priming and painting of the equipment as per Stewart & Stevenson’s standard paint specifications


 


	 	o	Level
    1 – Urethane Paint System


 


	 	−	The
    complete testing of the equipment at the Stewart & Stevenson, plant in Houston, Texas, USA.


 


 


 




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	5.0		INSPECTION/TRAINING



 


During
the pre-dispatch inspection visit of customer’s engineers (8 people); Stewart & Stevenson will arrange comprehensive
training at their manufacturing plant for a period of two (2) weeks on Operation & Maintenance, Troubleshooting and Working
Principle of equipment systems/items used in the unit and other relevant subjects.


 


	 	−	The
    buyer will be responsible for all airfare.
	 	 	 
	 	−	The
    buyer is responsible for accommodations and meals. 
	 	 	 
	 	−	Stewart
    & Stevenson will provide local transportation.
	 	 	 
	 	−	Stewart
    & Stevenson will provide lunch on training days.


 


	6.0		COMMISSIONING



 


Included
in the scope of our supply, Stewart & Stevenson will furnish two (2) trained and experienced specialist for up to fourteen
(14) consecutive days to assist the buyer’s qualified personnel in start-up and commissioning at the buyer’s specified
location. The Stewart & Stevenson specialist will also provide practical on-site training (English only, notify S&S if
a translator is required, additional costs may apply) to the buyer’s personnel in the operation and maintenance of the equipment.


 


Also
included in the scope supply –


 


	 	−	Stewart
    & Stevenson will be responsible for all airfare (portal to portal) to the international airport that is closest to the
    buyer’s specified location.
	 	 	 
	 	−	The
    buyer is responsible for providing appropriate on-site accommodations, meals, local transportation and security/escort for
    the Stewart & Stevenson specialist upon arrival and through departure.
	 	 	 
	 	−	The
    buyer is responsible for providing all necessary equipment, supplies, fuel, parts, tools and personnel for commissioning activities
    and rig operations.
	 	 	 
	 	−	If
    additional time or Stewart & Stevenson personnel are required due customer issues such as personnel, site delays, equipment,
    supplies, fuel, tools, etc. additional time and/or manpower will be billable to the buyer at Stewart & Stevenson’s
    prevailing charging rates plus expenses.


 


 


 




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WARRANTY
POLICY STATEMENT


 


This
Policy Statement sets forth the terms of the warranty provided by Stewart & Stevenson Manufacturing Technologies LLC and its
subsidiaries (“Stewart & Stevenson”), with respect to all commercial equipment manufactured, produced, distributed,
and/or sold or per scope of repair (workmanship only) by Stewart & Stevenson (the “Products”).


 


STATEMENT
OF WARRANTY AGAINST DEFECTS


 


Subject
to the limitations and exclusions set forth below, Stewart & Stevenson will repair or replace any defective or malfunctioning
part of the Products for a period of twelve (12) months from the date first placed in service or eighteen (18) months from date
of shipment, whichever expires first. The Products shall be presumed to have been placed in service on the date of the Stewart
& Stevenson start-up report or, if there is no such report, on the date of shipment by Stewart & Stevenson to the first
retail purchaser (“Buyer”).


 


WARRANTY
AGAINST PATENT INFRINGEMENT


 


Stewart
& Stevenson warrants that none of the Products, the use thereof within the United States or the applications, processes or
designs employed in the manufacture thereof infringe the valid claims of any U.S. letter patent, patent application, copyright,
trade secret or any other property right of any third party. In the event of a breach or alleged breach of this warranty Stewart
& Stevenson shall, at its own expense, defend any suit or proceeding brought against Buyer and shall fully protect and indemnify
Buyer against any liability, cost, recovery or other expense in or resulting from such suit or claim of infringement. Buyer shall
give prompt notice in writing of any notice of claim of such suit and Buyer agrees to cooperate with Stewart & Stevenson to
enable it to make such defense. If in any such proceeding, Products or any part thereof is held to constitute an infringement
and the full or partial use of the Products is enjoined, Stewart & Stevenson shall, at no cost to Buyer, (i) obtain for Buyer
a license to use the Products or (ii) modify the Products so as to avoid the infringement without degradation in performance.
If Stewart & Stevenson cannot obtain such a license, or the Products cannot be so modified, or if as a result of any suit
or infringement or alleged infringement, Stewart & Stevenson may elect or may be prevented from delivering the Products or
any part or component thereof, Stewart & Stevenson shall, as Buyer’s exclusive remedy, promptly refund to Buyer all
money paid by Buyer for the Products.


 


EXCLUSIONS
OF LIABILITY


 


THE
FOREGOING WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY OR
FITNESS FOR A PARTICULAR PURPOSE. STEWART & STEVENSON’S LIABILITY UNDER THE FOREGOING WARRANTY SHALL BE LIMITED TO THE
COSTS OF REPAIR OR REPLACEMENT BY STEWART & STEVENSON OF ANY DEFECTIVE PART OR WORKMANSHIP. STEWART & STEVENSON SHALL
NOT HAVE ANY LIABILITY FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES, INCLUDING LOSS OF USE AND LOST PROFITS, IN CONNECTION WITH THE
PURCHASE, SALES, SHIPMENT, SERVICE, REPAIR OR OPERATION ARISING FROM THE FAILURE OF A PRODUCT, A COMPONENT THEREOF OR A BREACH
OF ANY WARRANTY. IN NO EVENT SHALL STEWART & STEVENSON’S LIABILITY TO ANY PERSON EXCEED THE PURCHASE PRICE OF THE STEWART
& STEVENSON PRODUCT.


 


Certain
Products may include components or items manufactured by someone other than Stewart & Stevenson or specified for inclusion
by the Buyer. Stewart & Stevenson’s warranty does not cover any failure of any such component or item. To the extent
that any such components or items are warranted by their original manufacturers, and to the extent that such warranties are assignable
to Buyer, Stewart & Stevenson assigns to Buyer any rights and remedies it has relating to such components or items. Stewart
& Stevenson further agrees to perform any obligations of the original manufacturer of any such component or item under the
manufacturer’s warranty to the extent that such manufacture authorizes Stewart & Stevenson to perform such warranty
obligations.


 


Certain
Products are or may include Consumables. “Consumables” are products, such as elastomers, coatings, anodes, etc. whose
useful life in actual operation and use is neither predictable nor consistent, but the degradation of which is caused by their
very use or operation. Stewart & Stevenson does not warrant any Consumables except as expressly provided herein, and Stewart
& Stevenson does not warrant or represent the useful life of any Consumable once in use or operation.


 


Stewart
& Stevenson has not authorized any person to assume or create any different warranty, written or oral, express or implied,
or any other liability on behalf of Stewart & Stevenson with respect to the Products.


 


Stewart
& Stevenson reserves the right to make changes in design and changes or improvements upon its products without any obligation
upon itself to install the same upon its products theretofore manufactured.


 


The
foregoing warranty gives the Buyer specific legal rights which may vary from state to state. Some states do not permit the limitation
of incidental or consequential damages or limitation of remedies under warranties. The above limitations apply only to the extent
permitted by applicable law.


 


 


 




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BUYER’S
RESPONSIBILITY


 


Stewart
& Stevenson provides the original purchaser with a copy of the relevant operator manuals containing vital information relating
to the proper use and maintenance of each Product. Additional copies of operator manuals are available from Stewart & Stevenson
at an additional cost. Any repairs arising from failure to maintain a Products in accordance with the operator manuals, from operation
of a Products in a manner not recommended by the operator manual or from the use of fuels, lubricants or coolants not meeting
the specifications set forth in the operator manuals are for the account of the Buyer.


 


Many
factors affect the performance and reliability of a Product. Specific output ratings and operating parameters have been established
by Stewart & Stevenson. Operation outside of the recommended limits can adversely affect the service life of a Product. Buyer
shall be responsible for all repairs arising from operation of a Product above its ratings or as a result of misuse, accident
or foreign object damage.


 


All
Products will require repairs and adjustments over time. Such repairs should be performed only by qualified mechanics and with
proper equipment and parts. Moreover, certain items installed on Products, such as belts and filters, are designed to wear out
over a period of time and must be periodically replaced. Buyer should retain a record of all maintenance or repairs performed
on Products. Buyer shall be responsible for any filters, belts, hoses or other normal maintenance items. Buyer shall be responsible
for any repairs arising from alterations to power products, repairs performed by a person other than authorized representatives
or use of maintenance items or parts not meeting the specifications set forth in the operator manuals.


 


Many
Products are located in remote areas or installed so that they are not easily serviced. Some Products are freely movable from
place to place. Since Stewart & Stevenson has no control over the place at which Products are from time to time located or
the manner of installation, warranty repairs are available only at the address of the Stewart & Stevenson facility that made,
manufactured, distributed, and/or sold the relevant Products, which such addresses are listed below. Buyer is responsible for
any costs of shipping Products to the authorized repair location, or shipping repair parts from Houston, Texas and for all travel
expenses of field servicemen when repairs are performed at other locations.


 


IN
THE EVENT OF A FAILURE


 


	1.	Unless
    there is a threat to life or property, Buyer shall immediately cease using the Products that exhibits any fuel or oil leak,
    vibration, unusual noise, high temperature, low oil pressure, black or white smoke, excessive fuel or oil consumption, or
    any other abnormal condition.
	 	 
	2.	Do
    not disassemble or otherwise attempt to repair the Products. Contact Stewart & Stevenson for the name and address of the
    nearest facility authorized to repair Products. Have available all serial numbers, model numbers, date of purchase and other
    information that will assist Stewart & Stevenson to identify the equipment.
	 	 
	3.	Stewart
    & Stevenson’s Warranty Department will troubleshoot the problem and direct the Buyer to the nearest authorized repair
    facility, dispatch a field service representative to the location of the Products or provide Buyer with replacement parts
    to be installed by Buyer. Buyer will be asked for a purchase order or other commitment to pay any expenses that are not covered
    by the applicable warranty.
	 	 
	4.	Warranted
    failures will be repaired by Stewart & Stevenson during normal business hours using new or remanufactured parts, at the
    option of Stewart & Stevenson’s Warranty Department. Any repairs or charges not covered by the applicable warranty
    must be paid by the Buyer at the time services are rendered unless other arrangements are made in advance.
	 	 
	5.	Stewart
    & Stevenson will invoice Buyer for all warranty replacement parts that are shipped for Buyer installation. Buyer shall
    be entitled to a full credit against the cost of such part, other than transportation charges, upon the return of the failed
    part and determination by Stewart & Stevenson’s Warranty Department that such failure was covered by warranty. Such
    invoice shall be payable in full unless the failed part is returned.


 


IF
YOU HAVE A QUESTION


 


If
you have any question regarding the applicable warranty on your Product, contact:


 


Stewart
& Stevenson Manufacturing Technologies LLC


Attention:
Warranty Department


10750
Telge Road


Houston,
Texas 77095


(281)
345-5100


 


Any
problems that cannot be resolved by Buyer after discussion with the Warranty Department should be referred to the General Manager
of Stewart & Stevenson Manufacturing Technologies LLC at the above address.


 


SSPPLLC
(02/06)


 


 


 




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TERMS
& CONDITIONS


 


GENERAL
TERMS & CONDITIONS OF SALE


 


	1.	DEFINITIONS:
    As used in these General Terms and Conditions of Sale, the term “Goods” shall mean the machinery, equipment, products
    and other tangible property from time to time sold or offered for sale by Seller; the term “Services” shall mean
    the labor from time to time provided by Seller; the term “Seller” shall mean the entity selling or offering such
    Goods or Services; and the term “Buyer” shall mean the person to whom such Goods or Services is sold or offered.
	 	 
	2.	OTHER
    TERMS: If this is an offer, your acceptance hereof is expressly limited to the specific terms contained herein. If this
    is an acceptance or written confirmation, it is expressly made conditional upon your assent to any terms contained herein
    that are additional to or different from those of your offer. These General Terms and Conditions of Sale shall contain all
    of the terms applicable to any sale of or offer to sell Goods or Services. Seller specifically objects to any additional or
    different terms contained in any document used by Buyer. Any acceptance of Goods or Services by Buyer or any payment by Buyer
    of any part of the purchase price shall be deemed to be a waiver of any additional or different terms contained in Buyer’s
    documents and an acceptance of all of the General Terms and Conditions of Sale, notwithstanding the acknowledgement by Seller
    of Buyer’s purchase order or other document provided by Buyer. No order for Goods or Services shall be binding on Seller
    until it is acknowledged in writing by Seller.
	 	 
	3.	SUPERVISION:
    All Services performed by Seller at a location owned or controlled by Buyer shall be performed by Seller’s personnel
    under the supervision and control of Buyer.
	 	 
	4.	ACCESS,
    PERMITS AND UTILITIES: Seller’s employees shall have free and unobstructed access to the site at which Services
    are to be performed. Buyer shall furnish safe and proper equipment, parts, tools and working conditions, safe storage for
    Seller’s property, and all necessary lifting equipment, steam, electricity, gas, oil, water and other utilities necessary
    to perform the Services. Buyer shall obtain all licenses, registrations, and permits necessary for Seller to perform the Services.
	 	 
	5.	PRICE:
    Unless otherwise stated, all prices are in U.S. Dollars. Prices relating to Goods are ex factory, place of manufacture. Labor
    rates shall by subject to change without notice and shall apply from the time of dispatch until return or dispatch to another
    job. No amount is included in any price for sales, use, privilege, excise or other taxes imposed on or measured by the gross
    receipts from the sale of the Goods or Services. Buyer shall promptly pay any such charge directly to the governmental authority
    assessing them or reimburse on demand any such charges paid by Seller.
	 	 
	6.	PAYMENTS:
    All payments shall be in U.S. Dollars, without offset, backcharge, retention or withholding of any kind. All invoices shall
    be payable within ten (10) days. Any amounts not paid when due will be subject to interest at the rate of 11/2% per month
    or the highest nonusurious rate permitted by applicable law, whichever is less. At the request of Seller, payments will be
    made through a confirmed irrevocable letter of credit in form and on banks acceptable to Seller.
	 	 
	7.	DELIVERY:
    Delivery to the carrier, including carriers owned or controlled by Seller, or notification that Goods are ready for shipment
    shall constitute delivery to the Buyer for all purposes.
	 	 
	8.	SHIPMENT:
    Prices include the cost of packing and crating required for normal domestic transportation. Freight charges included in any
    price are subject to adjustment for actual cost incurred by Seller. In the event that any Goods will be shipped out of the
    continental limits of the Untied States of America, all fees and expenses relating to export documentation, export packing,
    marking or importation into the country of destination shall be the responsibility of the Buyer.


 


 


 




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	9.	ACCEPTANCE:
    All Goods shall be finally inspected and accepted within thirty (30) days after delivery. All Services shall be inspected
    and accepted within thirty days after they are performed. Failure of Buyer to provide Seller with an itemized list of defects
    within such thirty (30) days or to permit Seller a reasonable opportunity to correct any listed defects shall be deemed acceptance
    of the Goods or Services. In the event of multiple shipments or extended Services, each individual shipment shall be separately
    accepted and Services shall be periodically inspected and accepted. Buyer expressly waives any right to reject Goods or Services
    that substantially conform to the specifications relating thereto and any right to revoke acceptance after such thirty (30)
    day period.
	 	 
	10.	DELAYS:
    Seller shall have no liability for any failure to deliver the Goods or perform Services to Buyer if such failure arises from
    causes beyond the reasonable control of Seller, including but not limited to, delays of suppliers or carriers, government
    actions, shortages of materials, labor difficulties, fires, floods, acts of God and the effects of civil disobedience.
	 	 
	11.	CHANGES:
    Seller reserves the right to change the details of any Goods provided that such change shall not impair the performance or
    critical dimensions of such Goods.
	 	 
	12.	ADDITIONAL
    COSTS: In addition to the purchase price, Buyer shall pay to Seller any costs incurred as a result of (a) changes in the
    Goods or Services or delays in delivery requested by Buyer; (b) delays in delivery arising from Buyer’s failure to provide
    information, drawings or materials; or (c) changes in the laws, codes, rules or regulations applicable to the Goods or Services
    after the date of quotation by Seller.
	 	 
	13.	WARRANTY:
    To the extent that Goods are warranted by their original manufacturers, and to the extent that such warranties are assignable
    to Buyer, Seller assigns to Buyer any rights and remedies it has relating to such Goods. Seller further agrees to perform
    any obligations of the original manufacturer under the manufacturer’s warranty to the extent that such manufacturer
    authorizes Seller to perform such warranty obligations. SELLER WARRANTS GOODS MANUFACTURED AND SERVICES PERFORMED BY IT
    PURSUANT TO THE WARRANTY POLICY STATEMENTS ISSUED FROM TIME TO TIME BY SELLER. EXCEPT AS SET FORTH IN THE APPLICABLE WARRANTY
    POLICY STATEMENT, SELLER MAKES NO WARRANTY, EXPRESS OR IMPLIED, WITH RESPECT TO GOODS OR SERVICES, INCLUDING ANY WARRANTY
    OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
	 	 
	14.	CANCELLATION:
    Orders for Goods or Services may not be cancelled by Buyer after acceptance by Seller. Seller shall be entitled to request
    reasonable assurances that Buyer will accept and pay for any Goods or Services, including but not limited to requiring payments
    on account or in advance, if there are reasons to believe that Buyer will not accept and pay for Goods or Services when delivered.
    Until such assurances are received, Seller shall be entitled to stop work on the Goods or Services, cancel any agreement to
    sell the Goods or Services, sue to recover the purchase price or any expenses incurred to the date of cancellation, resell
    the Goods or Services to a third party, or exercise any other remedy available at law or in equity for breach of contract.
	 	 
	15.	INTERPRETATION:
    Any sale or agreement to sell Goods or Services shall be interpreted according to the laws of the state in which Seller’s
    branch office is located, excluding any provision thereof that would direct the application of the laws of another jurisdiction.
    Buyer agrees that any sale of or agreement to sell Goods or Services will be deemed to be made and performed solely in the
    county in which Seller’s branch office is located, to the exclusion of all other jurisdictions. Seller’s branch
    office shall be deemed to be located at the address identified in this offer, acceptance or confirmation, as the case may
    be, or if no such address is identified, at Seller’s branch that issued these General Terms and Conditions of Sale.


 


 


 




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	16.	LIMITATION
    OF LIABILITY: Neither Seller nor Buyer shall have any liability to the other for any incidental or consequential damages
    arising from the sale of Goods or Services, the use, operation or consumption of the Goods, or the failure of either party
    to fully perform any agreement to sell Goods or Services. SELLER SHALL HAVE NO LIABILITY FOR ANY LOSS, DAMAGE OR COST ARISING
    FROM THE FAILURE TO DISCOVER OR REPAIR LATENT DEFECTS OR DESIGN DEFECTS IN ANY GOODS OR SERVICES. BUYER SPECIFICIALLY WAIVES,
    TO THE MAXIMUM EXTENT PERMITTED BY LAW, ANY CLAIM FOR INCIDENTAL, RESERVOIR, SPECIAL, INDIRECT, CONSEQUENTIAL AND EXEMPLARY
    DAMAGES, INCLUDING BUT NOT LIMITED TO MULTIPLE DAMAGES UNDER ANY DECEPTIVE TRADE PRACTICE OR CONSUMER PROTECTION LAWS.
	 	 
	17.	WAIVER:
    The waiver by either Seller or Buyer of any breach under these General Terms and Conditions of Sale shall not be deemed to
    be a waiver of any subsequent breach of a like or different nature. The failure to enforce any provision of the General Terms
    and Conditions of Sale shall not be deemed a waiver of such provision.
	 	 
	18.	ARBITRATION:
    Any dispute arising from or relating to the sale of Goods or Services, including the interpretation of these General Terms
    and Conditions of Sale, shall be resolved by binding arbitration according to the Stewart & Stevenson Arbitration Program.
	 	 
	19.	INDEMNITY
    (INCLUDING FOR NEGLIGENCE): BUYER HEREBY ASSUMES AND AGREES TO INDEMNIFY, DEFEND, PROTECT, SAVE, KEEP, AND HOLD HARMLESS
    SELLER, ITS AGENTS, EMPLOYEES, SUBCONTRACTORS, AND INVITEES FROM AND AGAINST ANY AND ALL LOSSES, DAMAGES, INJURIES, CLAIMS,
    CAUSES OF ACTION, LIABILITIES, DEMANDS AND EXPENSES (INCLUDING ATTORNEY FEES AND OTHER LEGAL EXPENSES) OF WHATSOEVER KIND
    AND NATURE, FOR INJURY TO, OR ILLNESS OR DEATH OF ANY PERSON AND FOR ALL DAMAGE TO, LOSS OR DESTRUCTION OF PROPERTY (COLLECTIVELY
    “LOSSES”), RELATING TO, CONNECTED WITH IN ANYWAY, ARISING OUT OF, OR ON ACCOUNT OF THE GOODS OR SERVICES PURCHASED
    HEREUNDER, INCLUDING, WITHOUT LIMITATION, ANY SUCH LOSSES CAUSED OR OCCASIONED BY ANY NEGLIGENT ACT OR OMISSION OF SELLER,
    ITS OFFICERS, AGENTS, EMPLOYEES, SUBCONTRACTORS, INVITEES OR LICENSEES. The foregoing indemnity is a material part of
    this transaction, supported by and in consideration of a reduction in the purchase price and is intended to apply notwithstanding
    the joint or concurrent negligence of Seller.
	 	 
	20.	RISK
    OF LOSS: Seller shall bear the risk of loss of the Goods until the Goods are delivered to the carrier, including carriers
    owned or controlled by Seller or notification to Buyer that the Seller is ready for shipments whichever occurs first. Thereafter,
    Buyer shall bear the entire risk of loss of the Goods.
	 	 
	21.	ENTIRE
    AGREEMENT: These Terms and Conditions of Sale constitute the entire agreement of the parties and supersede all discussions,
    arrangements, negotiations, representations and warranties, if any, relating to the Goods or Services covered hereby.


 


 


 









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