WELLBORE SCHEMATIC

GL: 4,227' WELL NAME: Longfellow 2-1 SPOT: 7,100' FSL & 1,013' FEL OPERATOR: SPUD DATE: 10/14/98

KB: 4,242' API NO: LOCATION: Sec 2, Blk 168, Mrs. J..P. Mullins Surv, A-5562 ZONE: 2nd Dimple / U. Caballos RR DATE: 11/01/98

WI: FIELD: Pinon ELEVATION: 4,227' MICU: 11/06/98

RI: COUNTY: Pecos TD: 7,600' COMPL DATE: 11/28/98

Corp ID: 100170 STATE: Texas PBTD: 7,098'

PIPE RECORD CEMENT & HOLE DATA

CSG OD GRADE THD WT/FT TOP BTM # JTS BIT SZE DEPTH SXS TOC

Surface 9.625'' J-55 LT&C 36.00# 0' 1,470' 12.250'' 1,505' 370 0'

Production 7.000'' J-55 LT&C 26.00# 0' 5,500' 167 8.750'' 5,514' 300 4100' (Calc-50%)

Liner 4.500'' J-55 11.60# 5,470' 7,600' 82 7,600' 300 5600' (Calc-50%)

Tubing 2-3/8" L-80 EUE 4.70# 0' 4,564' 159

DATE WORK DETAIL PROD. RESULTS

9-5/8" 1,470' 11/28/98 RIH w/2-3/8" SN, 205 jts 2-3/8" tbg and set EOT 6,397'

12/18/98 20 CK 2.1 mmcfd, 815 FTP

06/12/08 MIRU SL, RIH TAG TD 7098', EOT @ 6420', BROACH TO SN @ 6393', POH, RAN FLOWING GRADIANT, @ 7000' 0 GRADIANT & 

700# @ 1000', 0 GRADIANT & 90#. POOH, RDMO SL.

06/24/08 MIRU SL. BROACH TO SN WITH 1.90 BROACH, TAG @ 6396'. INST. CONVENTIONAL PLUNGER SYS. LINE OUT, AND LEFT ON CYCLE TO SALES.

06/25/08 MIRU SWAB RIG, BTP/CP 0/250#, BFL=5500', 8 RUNS, RECV 11.5 bw. ETP/CP 0/230#, EFL= 6000'. RETURN TO SALES W/410 SPT, RDMO SWAB 

07/08/08 MIRU SL, RIH FISH PL/BHS 6393', RIH W/TUBING STOP, SET @ 5881', POOH, RIHW PERFORATOR AND SHOOT SINGLE .50 HOLE @ 5880', 

TP INCR from 160# TO 300#. POOH. RIH, LATCH ONTO TUBING STOP, PULL UP HOLE TO 5840', POOH, RIH W/LATCH DOWN SPRING

 AND SET @ 5840', POOH. RDMO SL. DROP PL AND LEFT ON CYCLE TO SALES.

12/12/08 Fish plunger, spring & collar stop. Tag up at 7070' with EOT at 6373'. Run static BHP. Set tbg stop at 5848, drop latch down spring and plunger. Turn to sales.

11/09/09

11/22/09

02/18/10

2-3/8" Tbg at

4564'

TOC at 4100' (Est)

Drilling Notations:

Plunger

] [

Wolfcamp

4602'

4664'

Dimple Lm Stimulation Treatment PERFORATION HISTORY

4820' DATE TOP BTM ZONE SPF(count)/

Phasing Status

4940'

11/8/98 L. Cab 0 83 20% gelled HCl n/a 7 / 3900 ??? / 1400 11/06/98 6,432' 6,454' L. Caballos 1 SPF Closed

CIBP at 4990' 11/10/98 Tes Lm 0 71 20% gelled HCl n/a ??? / ??? ??? / 1300 11/06/98 6,455' 6,479' L. Caballos 1 SPF Closed

U Caballos 11/16/98 U. Cab 0 119 20% gelled HCl n/a 15 / 1800 ??? / 1300 11/06/98 6,480' 6,504' L. Caballos 4 SPF Closed

5092' 11/17/09 Dimple 116 1199 18# LG & 15% SGA 20/40 57 BPM / 2951 2340 11/06/98 5,790' 5,804' Tesnus Lime 0.5 SPF Closed

11/17/09 Wolfcamp 105 896 18# LG & 15% SGA 20/40 37 BPM / 2552 2078 11/06/98 5,858' 5,902' Tesnus Lime 1 SPF Closed

5270' Frac Job Remarks (Screenouts or problems in Frac job): 11/06/98 5,931' 5,935' Tesnus Lime 2 SPF Closed

11/06/98 5,951' 5,957' Tesnus Lime 2 SPF Closed

TOL @ 5,470' 11/06/98 5,970' 5,974' Tesnus Lime 2 SPF Closed

CIBP Record 11/14/98 5,092' 5,100' U. Caballos 1 SPF Closed

7" @ 5,500' Date Depth Type 11/14/98 5,108' 5,112' U. Caballos 1 SPF Closed

TOC at 5600' (Est) 11/7/98 6,557' 11/14/98 5,118' 5,126' U. Caballos 1 SPF Closed

Tesnus 11/9/98 6,299' 11/14/98 5,176' 5,200' U. Caballos 2 SPF Closed

5790' 11/13/08 5,383' 11/14/98 5,200' 5,244' U. Caballos 4 SPF Closed

11/10/09 4,990' CIBP 11/14/98 5,244' 5,270' U. Caballos 2 SPF Closed

11/17/09 4,750' CBP 11/09/09 4,920' 4,940' Dimple Lm 2 spf, 60 deg Open

5974' Remarks: 11/09/09 4,880' 4,900' Dimple Lm 1 spf, 60 deg Open

11/09/09 4,820' 4,840' Dimple Lm 0.5 spf, 60 deg Open

11/17/09 4,654' 4,664' Wolfcamp 2 spf, 60 deg Open

11/17/09 4,625' 4,635' Wolfcamp 2 spf, 60 deg Open

11/17/09 4,602' 4,612' Wolfcamp 2 spf, 60 deg Open

L Caballos Length Depth

6432' 4552'

6504' 4553'

4585'

4586'

REMARKS

PBTD @ 7,098'

ENGINEER:

GEOLOGIST:

LANDMAN:

PREPARED BY: J. Stewart

PREPARED DATE: 6/20/2008 UPDATED: F Edens, 2/17/10

4-1/2" @ 7,600' UPDATED: Greg Carlisle 11/19/2008 UPDATED: 8.19.11 MF

UPDATED: J. Stewart 3/2/2009 UPDATED:

Reinstalled conventional plngr system. Slickline. RIH w/ 1.905" tandem broach to SN @ 4529'. POH. RIH, tagged TD @ 4914' & loc EOT @ 4564'. POH. 

Dropped spring & plngr; chased to btm. Cycled to sales. FR. 

Well tools: 

WELL HISTORY

to 11/21/09: Recomplete to Wolfcamp/Dimple. Pull tbg string & run GR/JB to 5000'. Set a CIBP at 4990'. Run CBL from 4990' to 300'. Indicated TOC at 600'. Perf Dimple at 4920-

40' x 4880-4900' x 4820-40'. Frac with 788 bbl 75Q 18 ppg linear gel/CO2, 121 bbl 75Q 15% SGA acid/CO2 & 115649 lb prop, 57 BPM, 2951 psi. ISIP at 2340 psi. Set CBP at 4750'. 

Perf Wolfcamp at 4654-64' x 4625-35' x 4602-12'. Frac with 512 bbl 75Q 18 ppg linear gel/CO2, 153 bbl 75Q 15% SGA acid/CO2, & 104491 lb prop, 37.1 BPM, 2522 psi. ISIP at 2078 

psi. Drill out CBP at 4750' & wash down to 4955'. Unable to get deeper. Land tbg at 4586' & pump off bit. Start flowback test. Went to 1st gas sales on 11/21/09. Flow on 12/64" 

choke, 440 FTP, 500 SICP, spot rate at 459 MCFD, 44% CO2, 243 LP. 

6" Bit (Left in hole, 11/19/09)

Fluid

(bbls)

Total Fluid Type

(Pad/Prepad/Frac/Flush) Prop Type Frac Grad/

ISIP

Sand

(klbs)

2-3/8", 4.7#, L-80, EUE Tbg, 158 jts

XN Nipple (1.875" Bore, 1.791" No-Go)

2-3/8", 4.7#, L-80, EUE Tbg, 1 jt

TD at 7600'

Date Zone

11/21/1998

AIR(bpm)/

AIP(psig)

11/21/1998

11/21/1998

Packer Detail:

Permanent

11/19/2009 Unable to wash down below 4955'

Downhole Tubulars

Description

Pump-Off Bit Sub

Prem Plus (est 1.38 cf/sx, 15.5 ppg)

Prem Plus (est 1.38 cf/sx, 15.5 ppg)

to 11/30/09: Flow to sales. Run GR/JB & tag up at 4927'. Final report - Flow on full open choke, 80 FTP, 200 SICP, 75 LP, spot rate at 261 MCFD, 0 BOPD, 0 BWPD.

Premium Plus

42-371-36837

SandRidge Energy

85.78%

TYPE

Date Removed Notes

CURRENT

64.21%