Naoetsu LNG Terminal

Welcome to Naoetsu LNG Terminal
Naoetsu LNG Terminal which commenced operations in December 2013,is an LNG receiving facility that supplies natural gas to customers in Japan.
The terminal which is owned and operated by INPEX CORPORATION, Japan’s largest oil and gas exploration and production company,
is located in Joetsu city, Niigata prefecture, a key point along the company’s pipeline network.
With the surge in demand for natural gas in recent years due to growing public awareness of the environmentand energy conservation, Naoetsu LNG Terminal is well positioned to ensure the stable and efficient supplyof natural gas-based energy in line with INPEX’s efforts to play an increasingly vital role in society.

Roles of Naoetsu LNG Terminal

Naoetsu LNG Terminal is core facility responsible forestablishing a global gas value chain thatlinks overseas gas supply sources with the domestic gas market.
LNG (liquefied natural gas) from INPEX overseas projects is shipped to Naoetsu LNG Terminal.
Naoetsu LNG Terminal receives LNG from INPEX -operated Ichthys LNG Project in Australia and natural gas from
Minami-Nagaoka gas field in Japan.

Naoetsu LNG TerminalIchthys LNG Project [Australia]

Minami-Nagaoka-Gas Field [Nagaoka City, Niigata Prefecture]

INPEX is committed to providing a safeand reliable supply of natural gas produced
in Japan and around the world.
One of INPEX’s growth targets is strengthening its global gas
value chain to realize the long-term stable provision of natural
gas to its customers. Naoetsu plays a key role in this process byregasifying LNG, blending it with natural gas produced in Japan,
adjusting the calorific value before transferring the end productto the company’s pipeline network.

Niigata

Kashiwazaki

Nagaoka

JoetsuNaoetsu LNG Terminal

Itoigawa
NaganoToyama
Ueda
Matsumoto

Tomi

Gunma
Pref.

Tochigi
Pref.

Karuizawa
Tomioka• Pipeline network (approx. 1,500km in total length)
INPEX's pipeline network currently extends to Tokyo and across eight
prefectures of Niigata, Nagano, Gunma, Saitama,Tochigi,
Yamanashi, Shizuoka, and Toyama.

Suwa
NaganoPref.

HidakaYamanashi
Pref.
Kofu
Showa

Ome

Fujiyoshida
GotembaFuji

INPEX pipeline networkTerminal Overview

LNG delivered by vessels to Naoetsu LNG Terminal undergoes
regasification followed by calorific value adjustment prior to being
fed to the company’s pipeline network as sales gas.
2B

F

B

Storage

1Unloading

HA
GH
DC

Calorific value
adjustment

E

I

Central control building

4G

3

Product

Regasification

Block Flow Diagram

LNG
Liquefied
NaturalGas

1

2

3

4

Unloading

Storage

Regasification

Calorific value
adjustment

A

B

C

DE

Sales gasF

Facilities and Equipment

A

Unloading Arms

LNG unloading arms

Cryogenic LPG
unloading arms

B LNG Tanks
Aboveground full-containment storage tanks
Capacity:180,000kL×2units
Naoetsu LNG Terminal stores LNG in two tanks with a height of approximately 54m anddiameter of approximately 83m. The tanks have a total capacity 360,000kL. Each tank is large
enough to hold three Boeing 787 aircrafts.

Boeing 787

Diameter: approx. 83m(180,000kL × 2 tanks = 360,000kL)

Height: approx. 54m

The unloading arms are used to unload
LNG/LPG from the LNG/LPG carriers
and transfer them to their respective
storage tanks. Hydraulic quick couplersinstalled at the end of the arms ensuressafety and accuracy of operations during
coupling and decoupling from flanges on
the LNG carriers.

Heat fromseawater

C Open Rack Vaporizer (ORV)
ORV uses seawater as heat source to regasify the LNG at -162°C as
it passes through the vaporizer pipe.

SeawaterNatural gas
LNG

Submerged Combustion

D Vaporizer (SMV)

E

Calorific Value
Adjustment Facility

F LPG Tanks
AT LPG tanks

The SMV is a vaporizer operated mainlyin emergencies. It burns natural gas tocreate high-temperature exhaust gas thatheats water in a tank containing heatedtubes that regasify the LNG through heat
conduction.

This facility adjusts the calorific value ofregasified LNG and natural gas produced inJapan by adding liquefied petroleum gas(LPG). The end product is then transferredto the pipeline network as sales gas.

G BOG Treatment Facility

H Return Gas Blower (RGB)

LPG is used in calorific adjustment. There
are two types of LPG storage tanks; ambient temperature LPG tank and cryogenic
LPG tank.
Cryogenic LPG tankI
Boil off gas (BOG) is constantly produced inthe LNG and cryogenic LPG tanks due toheat flux from the surroundings. There aretwo ways to process the LNG BOG. One isto re-liquefy the gas and transfer it back tothe tank or vaporizer. The other is to compress the BOG and send it to a vaporizedgas pipeline. LPG BOG is processed byre-liquefying it and sending it to either theambient temperature LPG tank or cryogenic LPG tank.

Open Rack TypeLPG Heater

RGB is used to transfer boil off gas (BOG) tounloading LNG vessels to maintain positive
pressure inside the cargo tank.

ORH uses seawater as heat source to heat
the cryogenic LPG at -43 °C to ambient
temperature.

Operations Management

Central Control Building(Central Control Room)

The central control room monitors and controls
all the operations at the terminal. It features
redundant safety measures to ensure the terminal’s operational continuity in the event of equipment malfunctions.

Process Flow Diagram

High pressure BOG compressor

Low pressure BOG compressor
Shin-Nagaoka Line(domestic natural gas)

Return gas blower

Submerged
combustion vaporizer

BOG reliquefaction facility

Primary pumpPP

Unloading armsfor LNG and LPG carriers

Secondarypump

LNG tankOpen rackvaporizer

Calorific value
adjustment facility

Naoetsu Line(Sales gas)

(DV&M)
Cryogenic
LPG pumpP

Cryogenic LPG tankNatural Gas (NG/BOG)
Ambient-temperature
LPG tanks

Unloading arm
for coastal vessels

Specificationsof Main Equipment

Liquefied Natural Gas (LNG)

Open rack
propane heater

Sales Gas
Liquefied Petroleum Gas (LPG)

Equipment

Specifications

LNG tanks

Aboveground full-containment storage tanks

Ambient-temperature LPG tanks

Spherical LPG tank

Cryogenic LPG tank

Aboveground full-containment storage tank

LNG BOG treatment facility

High pressure BOG compressor (Reciprocating)8t/h × 2 units

Low pressure BOG compressor (Reciprocating)

8t/h × 1 unit

BOG re-liquefaction facility

8t/h × 1 unit

BOG compressor (Reciprocating)

4.3t/h × 2 unit

Cryogenic LPG BOG treatment facility

BOG re-liquefaction facility

LNG feed pumps

Primary pump
Secondary pump

180,000kL × 2 units
1,100t × 2 units
43,000kL × 1 unit

8t/h × 1 unit
120t/h × 6 units
85t/h × 4 units
40t/h × 2 units

LNG regasification facility
Calorific value adjustment facility

Open rack type vaporizer

80t/h × 3 units

Submerged combustion type vaporizer

130t/h × 1 unit

Liquid/Gas calorific value adjustment (DV&M system)

400t/hDisaster Preparedness and Environment Sustainability Measures

SafetyWater Curtain

Sprinkler

In the event of a fire during unloading operations, a water curtain
over 20min height is deployed to prevent radiant heat from
affecting vessels and adjacent facilities at the terminal. Vaporizedgas will also be diffused upward to quickly lower the density ofgas at ground level.

A sprinkler system is installed on LNG, cryogenic LPG and ambient LPG tanks. In the event of a fire, the system will spray water
to cool the tanks protecting them from the radiant heat. Theequipment will also prevent the fire from deforming structuresand spreading to adjacent facilities.

ERS (Emergency Release System)

Training for Emergencies

Decoupledunloading arm

If emergencies including earthquake-triggered tsunami and fires
as well as adverse weather and maritime phenomena occur
during an LNG unloading operation, the Emergency Release
System (ERS) will quickly decouple the arms from vessels without discharging liquid.

Backup system

To deal with unexpected disasters, training exercises are held
regularly. These include comprehensive drills such as firefighting, rescue operations and information exchange, joint vessel-terminal drills and unilateral/coordinated drills.

Renewable energy

Environment

Emergency Diesel Generator
and Gas Turbine Generator

Photovoltaic Power
Generation

Tree Planting

The terminal has generators to copewith power outages. The diesel generator is a backup source of power to keep
the terminal safe. If a power outage
persists, the gas turbine generator isactivated to sustain terminal operations.

High-efficiency polycrystalline solar
panels are installed on the south-east
walls and roofs of the administrationbuilding and pipeline operations center.
The panels which also function in snowy
conditions, produce electricity thatpartially powers the buildings.

In accordance with associated laws, 25%of the terminal’s area (6.25ha) is covered
with greenery and locally grown treesthat have been planted to preserve theenvironment. The terminal’s tree-planting initiative takes into account theeffects of strong winds and sea salt.

MAP

Terminal Bus Tour Map and Access

01

Cryogenic LPG Tank

Tank storing cryogenic LPG delivered by carriers.
• Height: approx. 38m • Diameter: approx. 47m• Capacity: 43,000kL × 1 unit
0212Water storage pit and pumps for industrial
water used at the terminal.

101103High-Voltage Power Receiving Facililty *Receives high voltage power (66,000V × 2)
used to power the terminal.

09
1404

13

Industrial Water Pumping Facility *Ambient-Temperature LPG Tanks

Tanks storing ambient–temperature LPG deliveredto the terminal by coastal LPG tankers and tank trucks.

13141505

15

Embankment VegetationEmbankments over 6.5m tall covered invegetation and local trees.

161606

18

Tanks storing LNG.
• Height: approx. 54m • Diameter: approx. 83m• Capacity: 180,000kL × 2 units

0706
20

LNG Tanks

07

Breathing Tanks

Tanks storing nitrogen used in LNG
and cryogenic LPG tanks pressure adjustment.

1907
20

2108

05

06

Seawater Intake Pit

1709

Interconnection Pipe

Pipe connecting the terminal and the adjacentthermal power plant enabling LNG exchange.
102011

International LNG/LPG Jetty

Jetty Operation Building

Operating and monitoring center for unloadingoperations at the international jetty.

26020321

Unloading Arms

Piping system consisting of flanges, ERS, pipes,etc. linking carriers and onshore equipment.
1350

Calorific Value Adjustment Facility *Equipment that adds LPG to vaporized gas to increase thecalorific value before transfer to pipeline as sales gas.

Return Gas Blower *Equipment transferring boil off gas (BOG) tounloading LNG carriers to sustain cargo tank pressure.

100(m)

Utility Facilities

Equipment for cooling water, nitrogen,instrumentation
air and heating water required within the process facilities.

Emergency Power Generators *Generators capable of producing sufficient electricity
to ensure operational continuity during power outages.

Central Control Building

Facility to monitor and control
all terminal equipment.
25

120 10BOG Compressor Facility *Compressor for pressurizing BOG for
re-liquefaction and or transfer to pipeline.

24

24

25

BOG Re-liquefaction Facility

Facility used to re-liquefy BOG for transfer to
LNG or LPG tanks or vaporizers.

23

04

Mooring facility to unload LNG and cryogenic
LPG from international LNG/LPG carriers.

23Open Rack LPG Heater (ORH)

Facility that uses seawater as heat source toheat cryogenic LPG to ambient temperature.

222201

Open Rack Vaporizer (ORV)

Facility used to regasify LNG
through heat exchange with seawater.

Pit slowing seawater intake and filtering solids.

05

07

Submerged Combustion Vaporizer (SMV)

Vaporizer regasifying LNG through heat
conduction from heated water.

1917

Seawater Drain Pit

Pit blocking the release of bubbles into the sea.

1808

Coastal LPG Carrier Jetty

Mooring facility to unload ambient-temperature
LPG delivered by coastal LPG carriers.

Pipeline Operation Center

Facility to monitor and operate pipelinenetwork; also houses INPEX MUSEUM.
26

Administration Building

Contains a presentation room, meeting rooms andoffices for units under Domestic Energy Supply &Marketing Division.
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Administration Building
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Naoetsu Station◀To Toyama◀To Toyama

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JoetsuHokuriku
Expressway▼To Nagano

Signboard

Kuroi
Post Office

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Naoetsu LNG Terminal,
Domestic Energy Supply & Marketing Division

INPEX CORPORATIONHead Office

12 Yachiho, Joetsu, Niigata Prefecture942-0027, JAPANTEL: +81-25-545-2196
FAX: +81-25-545-2359

Akasaka Biz Tower, 5-3-1 Akasaka,
Minato-ku, Tokyo, 107-6332, JAPANTEL: +81-3-5572-0200
FAX: +81-3-5572-0205
202305311000