LOST CABIN GAS PLANT CO2
MADDEN AREA
Madden
Wind River Basin
Madden Unit
BIGHORN 4-36
BIGHORN 10-5
BIGHORN 9-4
BIGHORN 8-35
BIGHORN 5-6
BIGHORN 2-3
BIGHORN 7-34
Lost Cabin Gas
Plant
BIGHORN 1-5
•Acreage: 79,500
•“Gas-in-Place”: 3.5 – 5.5 TCFG
MADDEN FIELD STRATIGRAPHIC SECTION
Fremont and Natrona Counties, Wyoming
LOST CABIN MBR.
LYSITE MEMBER
WIND RIVER FORMATION
TERTIARY
INDIAN MEADOWS FORMATION
SHOTGUN MEMBER
WALTMAN SHALE
MEMBER
-----------A----------LOWER MEMBER
-----------B--------------------1.1------------------------TOP-------------------------BASE-------------------------BLUE-------------
3000’
Madden Deep Unit starts in Top of Lower For Union
6000’
FORT UNION FORMATION
Approximate Top of Geologic Lance
9000’
11,000’
LANCE FORMATION
Contractual Lance Top (Base Waltman plus 5,500’)
13,000’
MEETEETSEE FORMATION
TEAPOT
15,000’
CRETACEOUS
MESAVERDE FORMATION
BADWATER
FALES MEMBER
POISON CREEK
SUSSEX EQUIV
SUSSEX “B”
1st SHANNON
2nd SHANNON
3rd SHANNON
17,000’
“CODY”
18,000’
NIOBRARA FORMATION
FRONTIER FORMATION
21,000’
MOWRY FORMATION
MUDDY FORMATION
P
20,000’
IP
PHOSPHORIA FORMATION
23,000’
TENSLEEP FORMATION
MISS
LIMESTONE
KARST
MADISON FORMATION
C
24,000’
GALLATIN FORMATION
PC
DOLOMITE
25,000’
PRE-CAMBRIAN
BIGHORN WELL DRILLING HISTORY
BH 1-5
1983-85
Drilled/Tested
BH 2-3
1987-88
Drilled/Tested
BH 4-36
1995-97
Drilled/Tested
BH 5-6
1999-2000
Drilled/Tested
BH 7-34
2000-01
Drilled/Tested
BH 8-35
2001-02
Drilled/Tested
BH 9-4
2002-03
Drilled/Tested
BH 10-5
2006-
Spudded in July
DEVELOPMENT AND EXPANSION OF LOST
CABIN GAS PLANT
TRAIN I
DEBOTTLENECK
1988-90
Conceptual design work
1993
Construction started
1994
WOGCC Hearing
1995
Online
1997
WOGCC Hearing
1998
TRAIN II
TRAIN III
50 MM/D
Increases
Capacity
15 MM/D
1998
Construction started
1999
Online
2000
WOGCC Hearing
2000
Construction started
2002
Online
65 MM/D
180
MM/D
CHEMICAL COMPOSITION OF GAS
PROCESSED AT LCGP
Methane
COS
12%
CO2
H2S
20%
1%
67%
LCGP PROCESSING SUMMARIZATION
CARBON
DIOXIDE
VENT
50 MMscf/d
INLET GAS
310 MMscfd
INLET
AREA
COOLED
GAS
AIR
SALES
GAS
200 MMscfd
PROCESS
AREA
H2S
Recycle
SULFUR
SULFUR
RECOVERY
RECOVERY
UNIT
UNIT
ACID
GAS
58 MMscfd
PRODUCED
WATER
5100 bbls/d
SULFUR TO
SALES
1460 LT/d
VENT
TAIL GAS
GAS
TAIL
UNIT
UNIT
INCINERATOR
INCINERATOR
DISPOSITION OF VARIOUS
COMPONENTS
COMPONENT
TRAIN I
TRAIN II
TRAIN III
TOTAL
INLET GAS
65MMscfd
65MMscfd
180MMscfd
310 MMscfd
CARBON
DIOXIDE
10 MMscfd
10 MMscfd
30 MMscfd
50 MMscfd
CARBON
DIOXIDE
2.5 MMscfd
2.5 MMscfd
6.8 MMscfd
11.8 MMscfd
20% of Inlet CO2 Slips
process Sales &
Incinerator
SALES GAS
42 MMscfd
42 MMscfd
116 MMscfd
200MMscfd
Various customers
(CIG, KM, LC)
310 LT
310 LT
840 LT
1460 LT
ACID GAS
12.4 MMscfd
12.4 MMscfd
33.5 MMscfd
58.3 MMscfd
SRU
PRODUCED
WATER
1200 bbls/d
1200 bbls/d
2700 bbls/d
5100 bbls/d
Surface Discharge
SULFUR
COMMENTS
80% of Inlet CO2 is
Vented
(Fertilizer)
AVERAGE CO2 VENT STACK
COMPOSITION
Train I
Train II
Train III
CO2, mol %
98.318
98.447
98.273
CH4, mol %
1.472
1.389
1.550
C2H6, mol%
0.016
0.015
0.027
N2, mol %
0.103
0.057
0.052
COS, mol%
0.091
0.092
0.098
H2S, ppm
5.000
4.000
8.000