Well Stratigraphy

Well Registration Number 15/18b- 4A Interpretation Composite Date Coded 01/11/1989 Depth Units Feet Datum KB Datum Elevation 84.90 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 639.5 0.00 0.00 148 NORD HORD QH 0 NM 0                 N     SEA BED 787.4 0.00 0.00 1394 NORD HORD QH 0 NM 0 CLAY 70.00 SHSD 15.00 SDST 15.00     N     1ST RETURN 2181.9 0.00 0.00 328 NORD HORD GO 0 GO 0 SDST 90.00 SLST 10.00         N       2510.0 0.00 0.00 1634 NORD HORD GL 0 GY 0 SDST 50.00 SLST 30.00 CLST 20.00     N       4143.9 0.00 0.00 305 BALD BALD GZ 0 GZ 0 TFMD 100.00             N       4449.0 0.00 0.00 861 DORN DORN GT 0 GT 0 SLST 70.00 SDST 25.00 LMST 5.00     N       5310.3 0.00 0.00 233 MONT MONT GT 0 GT 0 MDST 95.00 LMST 5.00         N     SHALE UNIT 5543.3 0.00 0.00 251 MONT MONT GT 0 GT 0 SDST 80.00 MDST 20.00         N     SDST UNIT 5794.3 0.00 0.00 955 ANDR ANDR GT 0 GT 0 SDST 65.00 MDST 25.00 LMST 10.00     N       6749.0 0.00 0.00 84 MAUR MAUR GT 0 GT 0 SLST 90.00 LMST 5.00 SDST 5.00     N     SHALE UNIT 6832.7 0.00 0.00 85 MAUR MAUR GT 0 GT 0 SDST 90.00 SLST 10.00         N     SDST UNIT 6918.0 0.00 0.00 121 MAUR MAUR GT 0 GT 0 SDST 45.00 MDST 45.00 LMST 10.00     N       7039.4 0.00 0.00 262 EKOF EKOF GD 0 GD 0 LMST 90.00 SLST 5.00 SDST 5.00     N       7301.9 0.00 0.00 430 TORF TORF KM 0 KM 0 LMST 100.00             N       7731.7 0.00 0.00 154 FLND FLND KM 0 KM 0 LMST 100.00             N       7885.9 0.00 0.00 48 CRKN CRKN KA 0 KV 0 MDST 55.00 LMST 45.00         N       7933.5 0.00 0.00 274 PIPE PIPE JD 0 JD 0 SDST 95.00 COAL 5.00         N       8207.4 0.00 0.00 54 PENT PENT JM 0 JM 0 TUFF 100.00             N       8261.6 0.00 0.00 39 RATT RATT * 0 * 0 AGGL 100.00             N       8300.9 0.00 0.00 0 RATT RATT * 0 * 0                 N     TD DRILLER