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Wyoming EORI 2nd Annual Wyoming CO2 Conference 5/29/08
The Beaver Creek MadisonCO2 Project – Spring 2008Chuck Peterson – Sr. Reservoir Engineering Advisor
NYSE: DVN www.devonenergy.com page 2
Beaver Creek Madison CO2 Flood Project
Overview
Geographic SettingGeologic and Reservoir settingField History Final Project DesignProject Construction
NYSE: DVN www.devonenergy.com page 3
COCO22 Floods in WyomingFloods in Wyoming
Merit Energy Wertz/Lost Soldier
Anadarko Patrick Draw Monel Unit
Anadarko Salt Creek Field
Devon Beaver Creek Field
NYSE: DVN www.devonenergy.com page 4
Beaver Creek Madison StructureBeaver Creek Madison Structure
10
1516
9
ApproximateOil - Water
Contact
-5700- 5700
0065-
0036-
-620
0
0016
-
0016-
0006
-
0006-
- 590
0
0095-
0085
-
- 58 00
Active Oil Producer
Active Water Injector
W
4317
31 22
55
403844
3266
41 68
11
5614
39-M45 46
30
42
52
34
5769
77
81
96
107
104
117
127
124137
136139
143146
147
FEET
0 1,518
PETRA 12/13/2005 5:04:00 PM
Geologic CharacteristicsLimestone/Dolomite MatrixApprox. Prod. Area = 974 AcresApprox. Oil Column Height =
820’Avg. Net Pay Thickness = 212’Avg. Depth to Madison Top =
11,100’
Reservoir CharacteristicsPorosity = 10%Permeability = 9 mdReservoir Temp = 234o FBHPi = 5301 psiaGORi = 288 scf/bblBubble Pt. = 673 psiaSwi = 10%Oil Gravity = 39.5
o API
Type Log
NYSE: DVN www.devonenergy.com page 5
Backthrust(Eastern Fault)
Madison (HW)Main Block
Madison (FW)Subthrust
Beaver Creek Structure Viewed From the South
Beaver Creek Madison StructureBeaver Creek Madison Structure
3D Seismic View
NYSE: DVN www.devonenergy.com page 6
Madison Log Section(GR/Buld Density)
BCU #127 WellTop @ 11224’ MD
Bottom @ 11723’ MD
Madison Base
F Zone Top
E Zone Top
D Zone Top
C Zone Top
B Zone Top
A Zone Top
NYSE: DVN www.devonenergy.com page 7
Background & Evaluation History
Madison reservoir discovered January 1954
Waterflood initiated in 1959 with peripheral flood
Water injection expanded to pattern flood through 1964 -
Reservoir developed with 36 completions
Currently have 21 active wells including 12 producers and 9 injectors
Current Production of 300 bopd, 29,000 bwpd & 13,000 bwipdCO2 flood potential originally identified in Amoco’s 1987 CO2 Feasibility
Study
• Determined marginally economic in 1987(low oil price)• Identified additional data needs to mitigate risk
Devon revived the project idea in January 2005
NYSE: DVN www.devonenergy.com page 8
Beaver Creek Madison UnitProduction History
10
100
1,000
10,000
100,000
Jan-50 Jan-60 Jan-70 Jan-80 Jan-90 Dec-99 Dec-09
Mon
thly
Vol
umes
(Bpd
, Mcf
d)
OilGasWaterWINJ
Main Block (Target)OOIP = 109 MMboCum Oil = 42.5 MMbo (39% OOIP)Rem = 2.6 MMbo
Early waterflood
Beaver Creek Madison Beaver Creek Madison Production HistoryProduction History
NYSE: DVN www.devonenergy.com page 9
Phased Evaluation
Phase 3 - Final full field modeling and flood designPhase 3 - Final full field modeling and flood design
• Full field 3D compositional modelHistory matchingIdentified where remaining oil existsForecast
Base (as is) forecast4 Development pattern options
Sensitivity analyses WAG cyclesSurface facilities limitations
• Final Economic analysis
NYSE: DVN www.devonenergy.com page 10
Phase 3 - Full Field 3D Compositional Model
NYSE: DVN www.devonenergy.com page 11
Phase 3 – Modeling Forecast
Flood Design Options
Plan 1: Peripheral CO2 -WAG Plan 2: Pattern CO2 -WAGPlan 3: Combined Plan 1 & Plan 2Plan 4: Peripheral-Gravity drainage
Flood Design Options
Plan 1: Peripheral CO2 -WAG Plan 2: Pattern CO2 -WAGPlan 3: Combined Plan 1 & Plan 2Plan 4: Peripheral-Gravity drainage
NYSE: DVN www.devonenergy.com page 12
Plan 1 – Peripheral CO2-WAG
14 Injectors:8 WAG injectors6 CO2 injectors
17 Producers
12 Shut-in or producingfrom other formation orTA
Detail:3 well conversion (prod->Inj):
44, 146, 1438 old producers:
11, 38, 41, 46, 68, 147, 66, 812 shut-in:
14, 966 old injectors:
40, 17, 30, 32, 45, 1397 new producers:
D, E, F, G, H, I, J, L4 new injectors:
A, B, C, K1 Injector reactivation:
311 Producer reactivation:
77
57
61
34
40
42
43
56
55
69
22
77
39
127
11
38
41
44
46
66
68
81
143
146
147
14
17
30
32
45
96
139
ctivector
tive
Low confidence inside this area
us
C
B
A
D
E
F
HJ
G
I
KL
NYSE: DVN www.devonenergy.com page 13
0
10,000
20,000
30,000
40,000
50,000
60,000
70,000
80,000
90,000
100,000
110,000
57
61
34
40
42
43
52
56
55
69
22
77
39
127
11
38
41
44
46
66
68
81
143
146
147
14
17
30
32
45
96
139
Remaining oil in place (rb/acre)
Red = InactiveBlue = injector
Black = active
Low confidence inside this area
Well status
C
B
A
D
E
F
HJ G
I
KL
WG
18 Injectors:All WAG injectors
14 Producers
Detail:2 well conversion (prod->Inj):
44, 146, 9 old producers:
11, 38, 41, 46, 68, 147, 66, 81, 143
8 old injectors:40, 17, 30, 32, 45, 139, 14, 96
4 new producers:L, D, E, J
8 new injectors:A, B, K, H, F, G, I, C
1 Producer reactivation:77
Plan 2 - Pattern CO2-WAG
NYSE: DVN www.devonenergy.com page 14
•Convert 2 wells from producer to injector
• Rework or recomplete 9 producers & 7 injectors
• Drill 7 new producers & 5 new injectors
• Construct Production & Injection Facilities
• Install New Flowlines for Producers & Injectors
• Build CO2 Supply Pipeline
Flood Preparation Work Requirements
NYSE: DVN www.devonenergy.com page 15
Where Are We At Today?
Construction & Wellwork InitiationInfrastructure Work Under Way
May 2007 Drilling Program InitiatedJuly 2007 Flowline Construction February 2008 Facilities Construction underway
Progress to DateDrilling program
7 Wells D&C, 3 Drilled, 2 WO RigRework/recompletion 95% completeCO2 gas contract in placeCO2 pipeline construction
100 % Completed75% hydro-tested
Distribution and flow lines installation completeCompressors & Dehydrator Fabricated and Ready for DeliveryProcess Vessels Set – Piping in Progress
July 2008 Project Startup
Beaver Creek Madison CO2 Flood
NYSE: DVN www.devonenergy.com page 16
Drilling Operations In Progress
NYSE: DVN www.devonenergy.com page 17
Nabors Rig M-40
NYSE: DVN www.devonenergy.com page 18
State of the Art Rig Controls
NYSE: DVN www.devonenergy.com page 19
Driller’s View
NYSE: DVN www.devonenergy.com page 20
Automated Pipe Racks
NYSE: DVN www.devonenergy.com page 21
Flex Mud Lines to Accommodate “Walking” Rig
NYSE: DVN www.devonenergy.com page 22
Mud Pit
NYSE: DVN www.devonenergy.com page 23
CO2 Delivery Line ROW Terrain
CO2 Line coming off Beaver Rim
8 inch CO2 Line
NYSE: DVN www.devonenergy.com page 24
Recycle Compressor Fabrication
NYSE: DVN www.devonenergy.com page 25
Intermediate Pressure Compressor Skid
NYSE: DVN www.devonenergy.com page 26
Madison Well #66 Production Line- 1st ditch dug
Kevin Watson (L) and Bill Skelton (R)
NYSE: DVN www.devonenergy.com page 27
Carbon Steel Production Line Pipe
NYSE: DVN www.devonenergy.com page 28
High Volume Gas Gathering Lines
6” Sweet Gas Line From Riverton Dome
10” Low Pressure Line: Beaver Creek Sweet
NYSE: DVN www.devonenergy.com page 29
Production Header
Leveling Up Production Lines
NYSE: DVN www.devonenergy.com page 30
Production Header
NYSE: DVN www.devonenergy.com page 31
Injection Header Building Construction
NYSE: DVN www.devonenergy.com page 32
Oil Tanks / Compressor Foundations / Cooler Foundations
Thank You.