Well Stratigraphy

Well Registration Number 9/23b- 12 Interpretation Composite Date Coded 15/06/1990 Depth Units Feet Datum KB Datum Elevation 83.00 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 83.6 0.00 0.00 352 * * * 0 * 0                 N     SEA LEVEL 436.0 353.00 0.00 3404 NORD HORD Q 0 GE 0 SDST 60.00 SLST 20.00 CLST 20.00     N     FIRST RETURNS 3840.0 3,717.00 0.00 1606 LESH LESH GE 0 GE 0 CLST 70.00 LMST 10.00 SLST 20.00     N       5446.0 5,363.00 0.00 278 FRGG FRGG GE 0 GE 0 SDST 80.00 CLST 20.00         N   OS   5724.0 5,641.00 0.00 292 BALD BALD GP 0 GP 0 CLST 80.00 LMST 10.00 SDST 10.00     N       6016.0 5,933.00 0.00 53 BTRO BTRO GP 0 GP 0 CLST 50.00 TUFF 50.00         N       6069.0 5,986.00 0.00 67 SELE SELE GP 0 GP 0 CLST 80.00 LMST 20.00         N       6136.0 6,053.00 0.00 204 MONT MONT GP 0 GP 0 SDST 60.00 CLST 30.00 LMST 10.00     N       6340.0 0.00 0.00 0 MONT MONT * 0 * 0                 N     TD DRILLER