first semester final presentation.

1. Feasibility Study
for Water Flood Analysis
“E” Sand Cherry Canyon Formation
Lea County, New Mexico
By Nick Ingalls, Ben Jacobson, Nick Lawson, Håvard Stangeland

2. Presentation Outline
• Project Objectives
• Location & Geology
• Well Log Data
• Field History
• Decline Curve Analysis
• Black Oil Simulation
• Remaining Objectives
• Final Recommendations

3. Project Objectives
Evaluate Lea Northeast to determine future
secondary recovery
• Create 3D black oil reservoir model of Lea Northeast Pool using
Eclipse
• Evaluate water flood conditions for optimal injection rates of existing
injectors
• Evaluate Mobil Lea #4 for potential injection conversion
• Estimate recovery and remaining HCIP

4. Location
of Interest

5. Lea
Lea T20S
T20S
Northeast
Northeast R34E
R34E
Pool
Pool

6. General Reservoir Information
• Play: Delaware Mountain Basinal Sandstone
• Average Depth: 3000-6000ft
• Reservoir Age: Permian(Guadalupian)
• Reservoir Lithology: Sandstone
• Main Trap Types: Stratigraphic
• Drive Mechanism: Solution Gas Drive

10. MLS 1 log showing E sand MLS 3 log showing E sand

11. Mobil Lea Production History
Water
Cum. Oil Cum. Gas Cum. Water Injected
(MBBL) (MMSCF) (MBBL) (MBBL)
Mobil Lea #1
(1993-2012) 111 130 28
Mobil Lea #2
(1993-2012) 481 494 44
Mobil Lea #3 174
(1993-2011) 214 287 337 (2011-2012)
Mobil Lea #4
(1994-2012) 288 342 421
Mobil Lea #8 1687
(2002-2012) (2002-2012)
1860
Total 1010 1253 831

12. Annual Production
1994 Annual Peak Production
2002 MLS #3 Begins Injecting
2002 MLS #8 Begins Injecting

13. GOR

14. WOR
N
Oil Producer
Water Injector

15. Decline Curves
N
k
Oil Producer
Water Injector

16. •Secondary-Primary Ratio:
MLS #3: 0.38
MLS #4: 0.93
N
•Secondary Reserves:
MLS #1: 24 Mstb
MLS #2: 84 Mstb
•Overall Recovery Factor:
MLS #3: 7.6%
MLS #4: 17.0%
•Predicted Overall Recovery Factor:
MLS #1: 6.7%
MLS #2: 28.3%
Oil Producer
Water Injector

17. Black Oil Simulation
Required Information
Fluid properties Rock properties
Relative Permeability
•PVT •Reservoir Structure
black oil correlations Grids created with Surfer
•Saturation •Porosity
Soi = 0.6
•Permeability
Correlated with porosity

18. N
N
Oil Producer
Water Injector
N

19. k = .1077*e0.2455*φ

20. Average Error – 20.5%

21. Average Error – 47.8%
Under Predicted

22. Average Error – 106.7%
Over predicted

23. Average Error – 12.1%

24. Average Error – 16.5%

25. Remaining Tasks
• Reservoir model history matching process
• Evaluate current water flood state and potential

26. Potential Recovery Alternatives
• Determine feasible enhanced oil recovery
alternatives for NE Lea
• Perform economic analysis on possible recovery
projects
• Evaluate lease for potential attic oil

27. RedCo would like to thank:
Dr. Thomas Engler
Dr. Mike Kelly
Dr. Her-Yuan Chen
Armstrong Energy

28. Questions?