Well Data Manager / Well Summary / 15/23a- 7

15/23a- 7

Decommissioned

Well Header

Well No
15/23a- 7
NSTA DEN No
2128
Well Name
--
Drill Seq No
7
Quadrant / Block
15 / 23 a
Surface Location
58.280287, 0.486694
Source Datum
ED50
Subsea Well
No
Platform
--
Slot No
--
Operator
NEO NEXT + ENERGY RESOURCES UK LIMITED
Original Operator
--
Sub Area Operator
NEO NEXT + ENERGY RESOURCES UK LIMITED
Licence No
P324
Licence Type
Production
Spud Date
1983-05-01
Source File
nsta_feature_service
Imported
2026-05-22 15:28

Wellbores (1)

15/23a- 7 Original
Abandoned Phase 3 View Log Interpreted Data Survey
Current Intent
Appraisal
Original Intent
Appraisal
Flow Class
Oil Show
Dev Type
--
Convention
--
Primary Target
G
Well Seq
WB1
Datum Type
Kelly Bushing
Datum Elev (m)
24.994
Ground Elev (m)
--
Water Depth (m)
148.44
TD MD (m)
4048.658
TD TVDSS (m)
4019.150
TD Datum Depth (m)
24.994
TD Datum Type
Kelly Bushing
Spud Date
1983-05-01
TD Reached
1983-07-04
Completion Date
1983-07-06
Release Date
1987-07-06

Formation Tops (27)

Wellbore Formation Era MD (m) TVDSS (m) Provider
15/23a- 7 Horda Cenozoic 858.000 832.943 Lloyds Register
Stronsay Cenozoic 858.000 832.943 Lloyds Register
Moray Mesozoic 1688.000 1662.891 Lloyds Register
Balder Cenozoic 1688.000 1662.891 Lloyds Register
Balder Tuff Cenozoic 1691.000 1665.891 Lloyds Register
Sele Mesozoic 1804.000 1778.880 Lloyds Register
Forties Sandstone Mesozoic 1862.000 1836.869 Lloyds Register
Lista Mesozoic 1952.000 1926.850 Lloyds Register
Montrose Mesozoic 1952.000 1926.850 Lloyds Register
Balmoral Sandstone Cenozoic 2039.000 2013.811 Lloyds Register
Andrew Sandstone Cenozoic 2147.000 2121.786 Lloyds Register
Maureen Sandstone Mesozoic 2338.000 2312.778 Lloyds Register
Maureen Mesozoic 2338.000 2312.778 Lloyds Register
Ekofisk Mesozoic 2592.000 2566.719 Lloyds Register
Chalk Mesozoic 2592.000 2566.719 Lloyds Register
Upper Cretaceous Chalk Mesozoic 2636.000 2610.711 Lloyds Register
Rodby Mesozoic 3354.000 3327.675 Lloyds Register
Cromer Knoll Mesozoic 3354.000 3327.675 Lloyds Register
Sola 3446.000 3419.437 Lloyds Register
Valhall Mesozoic 3505.000 3478.229 Lloyds Register
Kimmeridge Clay 3889.000 3860.315 Lloyds Register
Humber Mesozoic 3889.000 3860.315 Lloyds Register
Claymore Sandstone Mesozoic 3901.000 3872.255 Lloyds Register
Piper Mesozoic 4007.000 3977.701 Lloyds Register
Fladen Mesozoic 4018.000 3988.647 Lloyds Register
Rattray Volcanics Mesozoic 4018.000 3988.647 Lloyds Register
Pentland Mesozoic 4018.000 3988.647 Lloyds Register

Lithology Intervals

15/23a- 7 Curve: SANDCOUNT 73 intervals  ·  MD 377.342 – 4014.521 m G:/NSTA_BigFiles/NSTA_Packages/Lloyds_Register/NSTA Centr...
Sandstone (61)
Limestone (10)
Coal (2)

Interpreted Data Inventory (LR / WellStrat)

Open Interpreted Data Log
Wellbore Groups Formations Members Strat Intervals Tops HC Occ Core Cuttings DSTs
15/23a- 7 7 13 7 21 27 1 2 1 0 View

Hydrocarbon Occurrence (4)

Wellbore Category Code Formation / Litho Top MD (m) Base MD (m) Notes
15/23a- 7 Gas shows GS Cromer Knoll Group 3527.1456000000003 -- 361 m thick
15/23a- 7 Oil shows OS Humber Group 3901.44 -- 23 m thick
15/23a- 7 Oil shows OS Humber Group 3924.9096000000004 -- 82 m thick
15/23a- 7 Oil shows OS Pibroch Sandstone Member 4006.9008000000003 -- 11 m thick

Rock Samples (35)

Wellbore Sample Top MD (m) Base MD (m) Key Lab Results Comments Notes
15/23a- 7 Cuttings 368.81 4041.65 -- -- .
15/23a- 7 Core #1 3894.43 3913.02 CORE LABORATORIES UK LTD NO ANALYSIS .
15/23a- 7 ↳ Core Plug #1 3894.43 -- CORE LABORATORIES UK LTD NO ANALYSIS --
15/23a- 7 Core #2 4001.41 4010.65 φ 12.7% (n=16) · Kh 16.4 mD (n=16) · Density 2.68 (n=16) · CORE LABORATORIES UK LTD SHALE | SS FG GY CALC CMT; SS FG GY SIL CMT; SS FG GY SIL CMT TR PY; SS FG-MG GY SIL CMT PY .
15/23a- 7 ↳ Plug 01 4001.414 -- φ 17.1% · Kh 8.5 mD · Density 2.72 · CORE LABORATORIES UK LTD SS FG-MG GY SIL CMT PY --
15/23a- 7 ↳ Plug 02 4001.719 -- φ 14.9% · Kh 11.0 mD · Density 2.68 · CORE LABORATORIES UK LTD SS FG GY SIL CMT --
15/23a- 7 ↳ Plug 03 4002.024 -- φ 13.7% · Kh 8.0 mD · Density 2.69 · CORE LABORATORIES UK LTD SS FG GY SIL CMT --
15/23a- 7 ↳ Plug 04 4002.329 -- φ 8.8% · Kh 0.2 mD · Density 2.72 · CORE LABORATORIES UK LTD SS FG GY SIL CMT --
15/23a- 7 ↳ Plug 05 4002.634 -- φ 12.4% · Kh 5.6 mD · Density 2.67 · CORE LABORATORIES UK LTD SS FG GY SIL CMT --
15/23a- 7 ↳ Plug 06 4002.938 -- φ 16.6% · Kh 80.0 mD · Density 2.66 · CORE LABORATORIES UK LTD SS FG GY SIL CMT --
15/23a- 7 ↳ Plug 07 4003.243 -- φ 16.1% · Kh 62.0 mD · Density 2.68 · CORE LABORATORIES UK LTD SS FG GY SIL CMT --
15/23a- 7 ↳ Plug 08 4003.548 -- φ 15.4% · Kh 40.0 mD · Density 2.68 · CORE LABORATORIES UK LTD SS FG GY SIL CMT --
15/23a- 7 ↳ Plug 09 4003.853 -- φ 13.6% · Kh 14.0 mD · Density 2.66 · CORE LABORATORIES UK LTD SS FG GY SIL CMT --
15/23a- 7 ↳ Plug 10 4004.158 -- φ 12.7% · Kh 7.3 mD · Density 2.67 · CORE LABORATORIES UK LTD SS FG GY SIL CMT --
15/23a- 7 ↳ Plug 11 4004.462 -- φ 11.8% · Kh 2.1 mD · Density 2.69 · CORE LABORATORIES UK LTD SS FG GY SIL CMT --
15/23a- 7 ↳ Plug 12 4004.767 -- φ 9.2% · Kh 0.6 mD · Density 2.69 · CORE LABORATORIES UK LTD SS FG GY SIL CMT TR PY --
15/23a- 7 ↳ Plug 13 4005.072 -- φ 13.6% · Kh 6.2 mD · Density 2.66 · CORE LABORATORIES UK LTD SS FG GY SIL CMT --
15/23a- 7 ↳ Plug 14 4005.377 -- φ 5.0% · Kh 0.1 mD · Density 2.69 · CORE LABORATORIES UK LTD SS FG GY CALC CMT --
15/23a- 7 ↳ Plug 15 4005.682 -- φ 7.7% · Kh 0.1 mD · Density 2.69 · CORE LABORATORIES UK LTD SS FG GY CALC CMT --
15/23a- 7 ↳ Plug 16 4005.986 -- φ 13.9% · Kh 16.0 mD · Density 2.66 · CORE LABORATORIES UK LTD SS FG GY SIL CMT --
15/23a- 7 ↳ Plug 17 4006.291 -- CORE LABORATORIES UK LTD SHALE --
15/23a- 7 ↳ Plug 18 4006.596 -- CORE LABORATORIES UK LTD SHALE --
15/23a- 7 ↳ Plug 19 4006.901 -- CORE LABORATORIES UK LTD SHALE --
15/23a- 7 ↳ Plug 20 4007.206 -- CORE LABORATORIES UK LTD SHALE --
15/23a- 7 ↳ Plug 21 4007.51 -- CORE LABORATORIES UK LTD SHALE --
15/23a- 7 ↳ Plug 22 4007.815 -- CORE LABORATORIES UK LTD SHALE --
15/23a- 7 ↳ Plug 23 4008.12 -- CORE LABORATORIES UK LTD SHALE --
15/23a- 7 ↳ Plug 24 4008.425 -- CORE LABORATORIES UK LTD SHALE --
15/23a- 7 ↳ Plug 25 4008.73 -- CORE LABORATORIES UK LTD SHALE --
15/23a- 7 ↳ Plug 26 4009.034 -- CORE LABORATORIES UK LTD SHALE --
15/23a- 7 ↳ Plug 27 4009.339 -- CORE LABORATORIES UK LTD SHALE --
15/23a- 7 ↳ Plug 28 4009.644 -- CORE LABORATORIES UK LTD SHALE --
15/23a- 7 ↳ Plug 29 4009.949 -- CORE LABORATORIES UK LTD SHALE --
15/23a- 7 ↳ Plug 30 4010.254 -- CORE LABORATORIES UK LTD SHALE --
15/23a- 7 ↳ Plug 31 4010.558 -- CORE LABORATORIES UK LTD SHALE --

Wireline Log Inventory (Ingested Curves)

Wellbore Depth Start (m) Depth Stop (m) Typed Curves Auto-scaled Ingested
15/23a- 7 170.68800354003906 4048.353515625 12 0 2026-08-06 08:30:52.482369+00 View Log

Source LAS Manifest (Best Curve per Type)

Open full Manifest browser
15/23a- 7
Curve Type Best Mnemonic Source Depth Start (m) Depth Stop (m) Samples
bulk_density RHOB CGG Digital Well Logs 3879.9516000000003 4048.3536000000004 1106
bulk_density DEN OGA Batch Unzipped 3879.7992000000004 4048.6584000000003 1109
caliper CALI CGG Digital Well Logs 3860.1396 4048.3536000000004 1236
comp_sonic DT CGG Digital Well Logs 362.86440000000005 4037.838 23941
deep_resistivity RES_DEP OGA Batch Unzipped 1161.8976 4048.6584000000003 6330
deep_resistivity ILD CGG Digital Well Logs 363.62640000000005 4047.1344000000004 24129
deep_resistivity LLD CGG Digital Well Logs 3858.4632 4045.6104 1124
density_correction DENC OGA Batch Unzipped 3879.7992000000004 4048.6584000000003 1109
density_correction DRHO CGG Digital Well Logs 3879.9516000000003 4048.3536000000004 1106
gamma_ray GRD CGG Digital Well Logs 3879.9516000000003 4043.0196 1071
gamma_ray GRL CGG Digital Well Logs 3858.4632 4039.5144 1189
gamma_ray CGR CGG Digital Well Logs 3865.626 4035.3996 1115
gamma_ray GR CGG Digital Well Logs 170.68800000000002 4043.0196 25410
gamma_ray SGR CGG Digital Well Logs 3865.626 4035.2472000000002 1114
med_resistivity RES_MED OGA Batch Unzipped 1161.8976 4048.6584000000003 6335
med_resistivity ILM CGG Digital Well Logs 363.93120000000005 4048.2012000000004 24107
micro_resistivity MNOR CGG Digital Well Logs 3865.626 4045.0008000000003 1178
micro_resistivity MINV CGG Digital Well Logs 3865.626 4045.3056 1180
micro_resistivity MSFL CGG Digital Well Logs 3860.4444000000003 4048.3536000000004 1149
neutron_por NEU OGA Batch Unzipped 3879.7992000000004 4048.6584000000003 1109
neutron_por NPHI CGG Digital Well Logs 3879.9516000000003 4046.8296 1096
pef PEF CGG Digital Well Logs 3879.9516000000003 4048.3536000000004 1106
potassium POTA CGG Digital Well Logs 3865.626 4035.2472000000002 1114
shallow_resistivity SFLU CGG Digital Well Logs 362.71200000000005 4047.744 24126
shallow_resistivity RES_SLW OGA Batch Unzipped 1161.8976 4048.6584000000003 6334
shallow_resistivity LLS CGG Digital Well Logs 3858.4632 4045.458 1124
sp SP CGG Digital Well Logs 362.71200000000005 4048.3536000000004 24130
thorium THOR CGG Digital Well Logs 3865.7784 4035.2472000000002 1113
uranium URAN CGG Digital Well Logs 3865.626 4035.2472000000002 1114

Survey Inventory (Deviation)

Open full Survey detail
Wellbore Stations Max MD (m) Max TVDSS (m) Survey File
15/23a- 7 153 4040.733 4011.265 D:\BigSpatial\nsta_raw\CGG_Deviation\15-23a-7 940as_CGG-Deviation.xlsx

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