Well Data Manager / Well Summary / 15/20a- 8

15/20a- 8

Decommissioned

Well Header

Well No
15/20a- 8
NSTA DEN No
4102
Well Name
--
Drill Seq No
8
Quadrant / Block
15 / 20 a
Surface Location
58.464664, 0.936097
Source Datum
ED50
Subsea Well
No
Platform
--
Slot No
--
Operator
BRITOIL LIMITED
Original Operator
--
Sub Area Operator
BRITOIL LIMITED
Licence No
P196
Licence Type
Production
Spud Date
1990-06-29
Source File
nsta_feature_service
Imported
2026-05-22 15:28

Wellbores (1)

15/20a- 8 Original
Abandoned Phase 3 View Log Interpreted Data Survey
Current Intent
Exploration
Original Intent
Exploration
Flow Class
Dry Hole
Dev Type
--
Convention
--
Primary Target
J
Well Seq
WB1
Datum Type
Kelly Bushing
Datum Elev (m)
25.969
Ground Elev (m)
--
Water Depth (m)
148.74
TD MD (m)
2037.984
TD TVDSS (m)
0.000
TD Datum Depth (m)
25.969
TD Datum Type
Kelly Bushing
Spud Date
1990-06-29
TD Reached
1990-07-05
Completion Date
1990-10-11
Release Date
1994-10-11

Formation Tops (12)

Wellbore Formation Era MD (m) TVDSS (m) Provider
15/20a- 8 Moray Mesozoic 1826.000 1627.813 Lloyds Register
Balder Tuff Cenozoic 1826.000 1627.813 Lloyds Register
Balder Cenozoic 1826.000 1627.813 Lloyds Register
Sele Mesozoic 1842.000 1643.799 Lloyds Register
Montrose Mesozoic 1895.000 1696.775 Lloyds Register
Lista Mesozoic 1895.000 1696.775 Lloyds Register
Balmoral Sandstone Cenozoic 1944.000 1745.769 Lloyds Register
Andrew Sandstone Cenozoic 1972.000 1773.768 Lloyds Register
Maureen Mesozoic 1982.000 1783.768 Lloyds Register
Maureen Sandstone Mesozoic 1995.000 1796.767 Lloyds Register
Chalk Mesozoic 2055.000 1856.762 Lloyds Register
Ekofisk Mesozoic 2055.000 1856.762 Lloyds Register

Lithology Intervals

No lithology intervals ingested for this well.

Interpreted Data Inventory (LR / WellStrat)

Open Interpreted Data Log
Wellbore Groups Formations Members Strat Intervals Tops HC Occ Core Cuttings DSTs
15/20a- 8 3 5 4 10 12 1 2 1 0 View

Hydrocarbon Occurrence (0)

No hydrocarbon shows or DSTs recorded for this well.

Rock Samples (31)

Wellbore Sample Top MD (m) Base MD (m) Key Lab Results Comments Notes
15/20a- 8 Cuttings 756.0 2064.0 -- -- --
15/20a- 8 Core #1 1935.48 1953.31 φ 10.7% (n=4) · Kh 123.0 mD (n=4) · Density 2.73 (n=4) · ROBERTSON GROUP PLC SHALE NO ANALYSIS | SLEEVED SAMPLE.; SST, F, W.IND, CMN CARBONATE CMT. UKCS 226 poor core return .
15/20a- 8 ↳ Core Plug #1 1935.5 -- ROBERTSON GROUP PLC SHALE NO ANALYSIS --
15/20a- 8 ↳ Core Plug #1 1945.75 -- ROBERTSON GROUP PLC SHALE NO ANALYSIS --
15/20a- 8 ↳ Plug 43 1945.96 -- φ 5.4% · Kh 0.0 mD · Density 2.75 · ROBERTSON GROUP PLC SST, F, W.IND, CMN CARBONATE CMT. --
15/20a- 8 ↳ Core Plug #1 1946.25 -- ROBERTSON GROUP PLC SHALE NO ANALYSIS --
15/20a- 8 ↳ Core Plug #1 1949.25 -- ROBERTSON GROUP PLC SHALE NO ANALYSIS --
15/20a- 8 ↳ Plug 57 1949.39 -- φ 3.3% · Kh 0.0 mD · Density 2.74 · ROBERTSON GROUP PLC SST, F, W.IND, CMN CARBONATE CMT. --
15/20a- 8 ↳ Plug 58 1949.75 -- ROBERTSON GROUP PLC SHALE NO ANALYSIS --
15/20a- 8 ↳ Plug 59 1949.96 -- φ 4.6% · Kh 0.0 mD · Density 2.72 · ROBERTSON GROUP PLC SST, F, W.IND, CMN CARBONATE CMT. --
15/20a- 8 ↳ Core Plug #1 1950.25 -- ROBERTSON GROUP PLC SHALE NO ANALYSIS --
15/20a- 8 ↳ Core Plug #1 1950.5 -- ROBERTSON GROUP PLC SHALE NO ANALYSIS --
15/20a- 8 ↳ Plug 62 1950.86 -- φ 29.5% · Kh 492.0 mD · Density 2.69 · ROBERTSON GROUP PLC SLEEVED SAMPLE. --
15/20a- 8 ↳ Core Plug #1 1951.0 -- ROBERTSON GROUP PLC SHALE NO ANALYSIS --
15/20a- 8 ↳ Core Plug #1 1953.25 -- ROBERTSON GROUP PLC SHALE NO ANALYSIS --
15/20a- 8 Core #2 1953.31 1970.84 φ 23.8% (n=6) · Kh 473.4 mD (n=6) · Kv 1100.0 mD (n=1) · So 18.9% (n=2) · Sw 64.5% (n=2) · Density 2.71 (n=6) · FSP 32.9 (n=2) · ROBERTSON GROUP PLC FRACTURED NO ANALYSIS; SHALE NO ANALYSIS | SLEEVED SAMPLE.; SST, F, W.IND, CMN CARBONATE CMT, CMTD FRAC.; SST, F-MED, V ARG, P-MOD IND, SL CARB. .
15/20a- 8 ↳ Core Plug #2 1953.5 -- ROBERTSON GROUP PLC SHALE NO ANALYSIS --
15/20a- 8 ↳ Core Plug #2 1965.0 -- ROBERTSON GROUP PLC SHALE NO ANALYSIS --
15/20a- 8 ↳ Plug 120 1965.25 -- φ 2.8% · Kh 0.0 mD · Density 2.72 · ROBERTSON GROUP PLC SST, F, W.IND, CMN CARBONATE CMT, CMTD FRAC. --
15/20a- 8 ↳ Core Plug #2 1965.5 -- ROBERTSON GROUP PLC SHALE NO ANALYSIS --
15/20a- 8 ↳ Core Plug #2 1968.0 -- ROBERTSON GROUP PLC SHALE NO ANALYSIS --
15/20a- 8 ↳ Plug 132 1968.2 -- φ 19.8% · Kh 5.0 mD · Density 2.84 · ROBERTSON GROUP PLC SST, F-MED, V ARG, P-MOD IND, SL CARB. --
15/20a- 8 ↳ Plug 133 1968.5 -- ROBERTSON GROUP PLC SHALE NO ANALYSIS --
15/20a- 8 ↳ Plug 134 1968.75 -- φ 28.1% · Kh 45.3 mD · Density 2.78 · ROBERTSON GROUP PLC SLEEVED SAMPLE. --
15/20a- 8 ↳ Plug 135 1969.0 -- ROBERTSON GROUP PLC SHALE NO ANALYSIS --
15/20a- 8 ↳ Plug 136 1969.33 -- φ 30.5% · Kh 804.0 mD · So 11.8% · Sw 72.1% · Density 2.65 · FSP 33.7 · ROBERTSON GROUP PLC SLEEVED SAMPLE. --
15/20a- 8 ↳ Plug 137 1969.47 -- φ 29.9% · Kh 936.0 mD · So 25.9% · Sw 57.0% · Density 2.65 · FSP 32.1 · ROBERTSON GROUP PLC SLEEVED SAMPLE. --
15/20a- 8 ↳ Plug 138 1969.66 -- φ 31.6% · Kh 1050.0 mD · Kv 1100.0 mD · Density 2.65 · ROBERTSON GROUP PLC SLEEVED SAMPLE. --
15/20a- 8 ↳ Core Plug #2 1970.0 -- ROBERTSON GROUP PLC FRACTURED NO ANALYSIS --
15/20a- 8 ↳ Core Plug #2 1970.5 -- ROBERTSON GROUP PLC FRACTURED NO ANALYSIS --
15/20a- 8 ↳ Plug 142 1970.75 -- ROBERTSON GROUP PLC SHALE NO ANALYSIS --

Wireline Log Inventory (Ingested Curves)

Wellbore Depth Start (m) Depth Stop (m) Typed Curves Auto-scaled Ingested
15/20a- 8 155.447998046875 2065.629638671875 9 0 2026-08-06 16:56:48.664259+00 View Log

Source LAS Manifest (Best Curve per Type)

Open full Manifest browser
15/20a- 8
Curve Type Best Mnemonic Source Depth Start (m) Depth Stop (m) Samples
bulk_density ZDEN CGG Digital Well Logs 1672.2852 2065.6296 2582
bulk_density DEN OGA Batch Unzipped 1670.1516000000001 2065.9344 2598
cable_tension TENS OGA Batch Unzipped 170.07840000000002 2065.9344 12441
caliper CAL CGG Digital Well Logs 1672.2852 2065.6296 2582
caliper CALS CGG Digital Well Logs 760.6284 2049.6276 8459
comp_sonic AC CGG Digital Well Logs 762.4572 2057.5524 8499
comp_sonic DT OGA Batch Unzipped 763.0668000000001 2058.0096000000003 8498
deep_resistivity RILD CGG Digital Well Logs 761.8476 2061.972 8532
deep_resistivity RES_DEP OGA Batch Unzipped 762.1524000000001 2063.496 8540
density_correction ZCOR CGG Digital Well Logs 1672.2852 2065.6296 2582
density_correction DENC OGA Batch Unzipped 1670.1516000000001 2065.9344 2598
gamma_ray GR CGG Digital Well Logs 155.448 2053.8948 12458
gamma_ray GRD CGG Digital Well Logs 1660.7028 2061.972 2634
med_resistivity RES_MED OGA Batch Unzipped 762.1524000000001 2063.9532 8543
med_resistivity RILM CGG Digital Well Logs 761.8476 2061.972 8532
neutron_por CNC CGG Digital Well Logs 1669.8468 2060.7528 2566
neutron_por NEU OGA Batch Unzipped 1670.1516000000001 2062.8864000000003 2578
pef PE CGG Digital Well Logs 1672.2852 2065.6296 2582
pef PEF OGA Batch Unzipped 1670.1516000000001 2065.9344 2598

Survey Inventory (Deviation)

Open full Survey detail
Wellbore Stations Max MD (m) Max TVDSS (m) Survey File
15/20a- 8 250 2063.984 1865.744 G:\NSTA_BigFiles\OGA_Batch_Unzipped\UK_15\15_20a- 8\WELL_PATH\WDD_QC\15_20a-_8_wdd_WDD_FILE_46702732_DATACO_MAPPED.csv

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