1. PUMP PROJECT Germania Unit Rate Forecasting Based on Other Waterflood Pilots in the Spraberry Area

2. PUMP PROJECT Objectives To propose the location of new injection wells in the Germania Unit. To forecast the incremental oil recovery due to waterflooding in other waterflood Pilot area. The rate forecast is applied to Germania Unit for economic purpose.

3. PUMP PROJECT Coupling between Injector and Producers 1.The coupling is taken based on the production response in the on trend and off trend wells during the waterflood period. 2.This coupling could be used to determine the new location of injection wells.

4. PUMP PROJECT Germania (Spraberry) Unit Layout 1.The red line indicates a coupling between an injector and producers and rectangular box indicates the well has available production history. 2.WIWs #8, 11, and 15 did not have significant effect on surrounding oil production wells. 3.The production responses obtained from coupling between an injector and producers are parallel to the fracture orientation in NE-SW direction.

5. PUMP PROJECT Germania (Spraberry) Unit Layout The green ring fence is taken from the O’Daniel Pilot assuming this unit would behaves similar response. The circle mark indicates the proposed injection wells. From the coupling between injection and production shows that the location of proposed injection wells #408A and 10 should be relocated because they are along old injector path. The wells that have shown good waterflood response in the other Pilots are analyzed to determine the incremental oil recovery during waterflooding. The results are applied to Germania Unit for economic purpose.

6. PUMP PROJECT Water Injection in The Germania Unit

7. PUMP PROJECT Production Summary of GSU - 10

8. PUMP PROJECT Decline Curve Analysis of GSU – 10 (GSU – 19 as an Injector)

9. PUMP PROJECT Total Incremental Oil Rate Due to Waterflood in The Germania Unit

10. PUMP PROJECT Cumulative Oil Recovery Due to Waterflood in The Germania Unit

11. PUMP PROJECT Production Summary of The Germania Unit

12. PUMP PROJECT Decline Curve Analysis in The Germania Unit

13. PUMP PROJECT Rate Forecasting based on Incremental Oil from ET O’Daniel Area

14. PUMP PROJECT Infill Well vs. Waterflooding

15. PUMP PROJECT Cumulative Oil Comparison between Infill Well and Waterflooding Scenarios

16. PUMP PROJECT Decline Curve Analysis OBrien B1, Brunson F1, Brunson C2 and Brunson G1

17. PUMP PROJECT Oil Production History O’Brien B1 and Brunson F1

18. PUMP PROJECT Decline Curve Analysis OBrien B1

19. PUMP PROJECT Comparison Cumulative Oil Recovery Due to Waterflood and CO 2 Injection

20. PUMP PROJECT Total Cumulative Oil Recovery Due to Waterflood and CO 2 Injection

21. PUMP PROJECT Total Incremental Oil Rate Due to Waterflood and CO 2 Injection in The E.T O’Daniel Pilot

22. PUMP PROJECT Water Injection in The E.T O’Daniel Pilot Area

23. PUMP PROJECT Total Incremental Oil Rate Due to Waterflood in The Upper “McDonald” Pilot

24. PUMP PROJECT Cumulative Oil Recovery Due to Waterflood in The Upper “McDonald” Pilot

25. PUMP PROJECT Water Injection in The Midkiff Unit

26. PUMP PROJECT Total Incremental Oil Rate Due to Waterflood in The “Heckman” Pilot

27. PUMP PROJECT Cumulative Oil Recovery Due to Waterflood in The “Heckman” Pilot

28. PUMP PROJECT Pilot AreaDuration of Waterflooding, Years Cum. Water Injection /No. of injection wells Cum. Oil Production /No. of production wells Germania~ 19~2,500,000 (4)~80,000 (5) E.T O’Daniel ~ 3~1,600,000 (6)~110,000 (4) “Mc Donald” ~ 2~1,400,000* (4)~40,000 (15) “Heckman”Since 1996-~60,000 (18) SUMMARY * Injected in the Upper and Lower Spraberry

29. PUMP PROJECT OFM PRELIMINARY RESULTS

30. PUMP PROJECT Germania Unit Location

31. PUMP PROJECT Example of Bubble Map of Water Cut

32. PUMP PROJECT Example of Water Cumulative Map

33. PUMP PROJECT FUTURE WORK Improve OFM model to get external data from other Database systems, such as ODBC (Microsoft Access, Dwights and PI). Perform similar tasks for ET O’Daniel Pilot Area (Gokul is responsible for this task) Perform reservoir simulation