The document summarizes a 12-week subsurface mapping and interpretation course. It covers laying the theoretical foundations for exploring and developing oil and gas fields. The first 6 weeks were devoted to classes on structural geology, stratigraphy, seismic techniques and reservoir engineering. The second 6 weeks focused on applying these tools to a hypothetical lease, including initial exploration, assessing discoveries, field development and performance analysis. Various mapping and interpretation techniques are demonstrated, such as depth structure maps, fault surface maps, isochore maps and seismic sections. Risk factors are assessed for a proposed deviated exploration well.

1. 12 Week Subsurface Mapping and Interpretation Technique Building Laying The Theoretical Foundations And Introducing Techniques To Explore For And Develop Oil And Gas Fields. Joe Dumesnil

2. Special thanks to: Dr. Stewart Chuber of Fayette Exploration Company AAPG Foundation The friends I have made while here including the entire SCA Company staff and its Partner-Instructors

5. Dip Line - 5

6. Lead Map – Depth Structure of Frio A Top Note: 1. Line 5 2. Well Tops from previous dry holes

7. Refined Prospect Depth Structure & Volumetrics 950 Acres 12,350 Ac-Ft 13.561 BCF and 624 MBO Note: Engineering Parameters from Analogous Fields were used for Calculations 13’ Ft Pay, 50% Sw, 24.9 Porosity, 2% Attic, 46B/MM, P-intial 4700 psi, P-abandonment 1000psi, Recovery: 1098 MCF/Ac-Ft

9. Time Structure Top Frio A

10. Depth Structure Top Frio A

11. Fault Surface Map after finding a Bifurcator to the Main Fault

12. Velocity Gradient Map Integrated with times of a seismic event to get a better approximation of depth structure.

13. Well Data Stencil Time Conversion from Depth (Frio A, J, U) Depth of Surface (Frio A, J, U) Fault Cuts in Time and Depth

14. Net Sand Map

16. Structural X-Section across Main Fault

18. Stacks of Data Are there more Prospects on our Lease? Remaining 5 of 15 Lines of Seismic in the Area Integrate all Logs to Structural Interpretation

19. Fault Cuts taken from Seismic lines with Naming Convention Frio A

20. Updated Fault Surface Map After Receiving All Available Seismic Note that only faults pertinent to the fault blocks that we are prospecting in are included.

21. 1. Shot Points at which certain faults occur on specified lines. 2. Grid to loop tie Frio A Seismic Event across entire Seismic Grid

22. Time Structure Top of Frio J

23. Time Structure of Top Frio U

25. East of Bifurcator – 1 Time Structure for Top of Frio J

27. East of Bifurcator – 1 Time Structure for Top of Frio U

29. Proposed Deviated / Directional Well Multiple Payzones In The Frio Frio A: ~10,000 Ac-Ft Frio J: ~11,000Ac-Ft Frio U: ~8500 Ac-Ft

32. Stratigraphic Framework

33. 3 rd and 4 th Order Sequence Stratigraphy

34. Beach Barrier / Strandplain Complex Zone of Frio Growth Fault Expansion -7000 GENERAL AREA OF PROJECT -7000

35. Thank You All Again, Especially, Dr. Stewart Chuber and The AAPG Foundation Questions?

36. Final Base Map (with all wells that were drilled into the block)