Well Stratigraphy

Well Registration Number 74/01- 1A Interpretation Composite Date Coded 30/10/1989 Depth Units Feet Datum KB Datum Elevation 77.00 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 0.0 0.00 0.00 579     * 0 * 0                 N     MEAN SEA LEVEL 579.0 502.00 0.00 301     * 0 * 0                 N     SEA BED 880.0 803.00 0.00 360 * * NC 0 GO 0 LMST 70.00 SDST 30.00         N     FIRST RETURNS 1240.0 1,163.00 0.00 193 * * GO 0 GO 0 LMST 98.00 SDST 2.00         N       1433.0 1,356.00 0.00 206 * * GA 0 GA 0 LMST 90.00 SDST 10.00         N       1639.0 1,562.00 0.00 611 * * GL 0 GL 0 LMST 55.00 SDST 25.00 SLST 20.00     N       2250.0 2,173.00 0.00 203 * * GY 0 GY 0 SLST 80.00 LMST 20.00         N       2453.0 2,376.00 0.00 78 * * GC 0 GC 0 SLST 60.00 SDST 40.00         N       2531.0 2,454.00 750.00 719 CK CK KC 0 KC 0 LMST 60.00 CHLK 30.00 CHRT 10.00     N     TOP CHALK 3250.0 3,173.00 0.00 267 CK CK KO 0 KT 0 LMST 45.00 CHLK 45.00 CHRT 10.00     N       3517.0 3,440.00 0.00 186 CK CK KE 0 KE 0 CHLK 45.00 LMST 45.00 SLST 10.00     N     BASE CHALK 3703.0 3,626.00 970.00 173 * * KA 0 KA 0 CLST 60.00 LMST 20.00 SDST 15.00 SLST 5.00 N     BASE CHALK 3876.0 3,799.00 1,010.00 884 * * TC 0 TC 0 CLST 60.00 SLST 20.00 SDST 15.00 ANHY 5.00 N     TOP TRIASSIC 4760.0 4,683.00 1,118.00 646 TRSS TRSS TC 0 TS 0 SDST 35.00 SLST 35.00 CLST 30.00     N     TOP T 'SAND' 5406.0 5,329.00 0.00 981 * * TC 0 TS 0 CLST 60.00 SLST 38.00 ANHY 2.00     N     BASE T 'SAND' 6387.0 6,310.00 1,450.00 1863 LPV LPV PL 0 PL 0 TUFF 50.00 TRAC 50.00         N       8250.0 8,173.00 0.00 0 LPV LPV * 0 * 0                 N     TD DRILLER