1. Stephen C. Ruppel, Bureau of Economic Geology, PBGSP Annual Meeting, 2/27-28/06, Austin, TX Stephen C. Ruppel Bureau of Economic Geology The Jackson School of Geosciences The University of Texas at Austin KEY TO RESERVOIR DEVELOPMENT AND CHARACTERIZATION: CLEAR FORK, WICHITA, ABO

2. Stephen C. Ruppel, Bureau of Economic Geology, PBGSP Annual Meeting, 2/27-28/06, Austin, TX

13. LOG IDENTICATION OF FACIES & CYCLCITY

14. Stephen C. Ruppel, Bureau of Economic Geology, PBGSP Annual Meeting, 2/27-28/06, Austin, TX

16. Cycle-capping Tidal Flat Facies WICHITA FACIES Fenestral Fabric Separate vug porosity 5 cm Porosity: 15.2 %; Permeability: 1.7 md

17. Stephen C. Ruppel, Bureau of Economic Geology, PBGSP Annual Meeting, 2/27-28/06, Austin, TX Tidal Flat Facies WICHITA FACIES Laminated Mudstone Intercrystalline Porosity 1 mm 5 cm Porosity: 13.8 %; Permeability: 0.93 md

18. Stephen C. Ruppel, Bureau of Economic Geology, PBGSP Annual Meeting, 2/27-28/06, Austin, TX Peloidal Dolopackstone Porosity: 16.0 %; Permeability: 4.22 md Wichita Peloidal Dolowackestone 7095 Porosity: 11.7 %; Permeability: 0.68 md Dominated by Rock Fabric Class 3

19. Stephen C. Ruppel, Bureau of Economic Geology, PBGSP Annual Meeting, 2/27-28/06, Austin, TX Ooid/skeletal Lime Grainstone LOWER CLEAR FORK FACIES Separate Vug Porosity 5 cm Porosity: 23.1 %; Permeability: 17 md

20. Stephen C. Ruppel, Bureau of Economic Geology, PBGSP Annual Meeting, 2/27-28/06, Austin, TX Lower Clear Fork Peloidal Grain-dominated Dolopackstone Porosity: 11.7 %; Permeability: 0.68 md 6122 :6976 Skeletal/peloidal Lime Grainstone Porosity: 11.0 %; Permeability: 0.54 md 6122:6857 Dominated by Rock Fabric Classes 1 & 2 Moldic

21. Stephen C. Ruppel, Bureau of Economic Geology, PBGSP Annual Meeting, 2/27-28/06, Austin, TX Stephen C. Ruppel, Bureau of Economic Geology, 2003 UL/PTTC Workshop, Midland, TX Cycle-capping Tidal Flat Facies LOWER CLEAR FORK FACIES Fenestral Fabric Separate vug porosity 5 cm Cycle Top

22. Stephen C. Ruppel, Bureau of Economic Geology, PBGSP Annual Meeting, 2/27-28/06, Austin, TX

24. CYCLE SCALE ARCHITECTURE Subtidal Cycles

25. Stephen C. Ruppel, Bureau of Economic Geology, PBGSP Annual Meeting, 2/27-28/06, Austin, TX

26. Karst-related Breccias Wichita

27. Stephen C. Ruppel, Bureau of Economic Geology, PBGSP Annual Meeting, 2/27-28/06, Austin, TX

28. SEISMIC ARCHITECTURE Fullerton Clear Fork Field W E Tubb LCF Wichita Abo Tubb LCF Wichita Abo

29. Stephen C. Ruppel, Bureau of Economic Geology, PBGSP Annual Meeting, 2/27-28/06, Austin, TX Amplitude Extraction for L2.1 in Proposed Infill Area 2811 2813 2913 3013 3015 3113 3115 2910 2000 18000 3D survey Phase 2 study area Unit outline N Existing good producer Proposed wells Proposed infill area

30. Stephen C. Ruppel, Bureau of Economic Geology, PBGSP Annual Meeting, 2/27-28/06, Austin, TX KEY ISSUES: LEONARD CARBONATES 1.Facies 2.Diagenesis 3.Identification of Rock Fabrics 4.Mineralogy 5.Karst? 6.Correlation 7.Architecture 8.Reservoir Framework