Well Stratigraphy

Well Registration Number 15/21b- 41 Interpretation Composite Date Coded 05/02/1992 Depth Units Feet Datum KB Datum Elevation 90.00 Loggers TD 0.00 TWT Scale   Thickness Type   Comment     Litho Stratigraphy Chronostraigraphy Lithology Components   Top Down Hole Depth Top Vertical Depth (MSL) Top TWT (msec) Thickness Upper Litho Lower Litho Upper Chrono   Lower Chrono   1 % 2 % 3 % 4 % Cored Nature Of Top Hydro carbon Present Notes 540.0 0.00 0.00 1085 * * GU 0 GU 0                 N     SEA BED 1625.0 0.00 0.00 295 * * GU 0 GU 0 SAND 100.00             N     FIRST RETURN 1920.0 0.00 0.00 810 * * GO 0 GE 0 SAND 98.00 LMST 2.00         N       2730.0 0.00 0.00 720 * * GL 0 GL 0 SAND 90.00 CLST 10.00         N       3450.0 0.00 0.00 411 * * GY 0 GY 0 SAND 80.00 CLST 20.00         N       3861.0 3,771.00 1,190.00 403 BALD SELE GC 0 GC 0 CLST 68.00 SAND 30.00 DOLO 2.00     N       4264.0 4,175.00 1,299.00 404 DORN DORN GC 0 GC 0 SAND 86.00 CLST 10.00 LIGN 2.00 DOLO 2.00 N       4668.0 4,576.00 1,399.00 397 FERB FERB GC 0 GC 0 SLCL 88.00 SDST 10.00 LIGN 1.00 DOLO 1.00 N       5065.0 4,973.00 1,503.00 938 ANDR ANDR GC 0 GC 0 SAND 80.00 CLST 18.00 LMST 2.00     N       6003.0 5,910.00 1,718.00 97 * * GD 0 GD 0 SAND 70.00 LMST 30.00         N       6100.0 6,007.00 1,736.00 58 * * JO 0 JO 0 CLST 40.00 LIGN 40.00 LMST 20.00     N U     6158.0 6,065.00 1,749.00 22 * * JM 0 JM 0 CLST 90.00 SAND 10.00         N U     6180.0 6,087.00 1,754.00 950 MJVF MJVF JM 0 JM 0 TUFF 40.00 TFCL 25.00 SLST 24.00 BASA 11.00 N       7130.0 7,036.00 1,963.00 344 SMIT SMIT T 0 T 0 CLST 100.00             N U     7474.0 7,380.00 2,028.00 149 ZECH ZECH PU 0 PU 0 DOLO 85.00 SLCL 8.00 ANHY 7.00     N U     7623.0 7,528.00 2,048.00 85 * * AN 0 CV 0 SHAL 50.00 SAND 50.00         N U     7708.0 0.00 0.00 152 * * CV 0 CV 0 SAND 80.00 CLST 10.00 COAL 10.00     N       7860.0 7,764.00 2,086.00 0 * * * 0 * 0                 N     TD (DRILLER)