Well Data Manager / Well Summary / 15/20a- 10

15/20a- 10

Decommissioned

Well Header

Well No
15/20a- 10
NSTA DEN No
4193
Well Name
--
Drill Seq No
10
Quadrant / Block
15 / 20 a
Surface Location
58.438690, 0.895597
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
1990-09-12
Source File
nsta_feature_service
Imported
2026-05-22 15:28

Wellbores (1)

15/20a- 10 Original
Abandoned Phase 3 View Log Interpreted Data Survey
Current Intent
Exploration
Original Intent
Exploration
Flow Class
Oil Show
Dev Type
--
Convention
--
Primary Target
LA
Well Seq
WB1
Datum Type
Kelly Bushing
Datum Elev (m)
25.878
Ground Elev (m)
--
Water Depth (m)
141.95
TD MD (m)
2100.560
TD TVDSS (m)
0.000
TD Datum Depth (m)
25.878
TD Datum Type
Kelly Bushing
Spud Date
1990-09-12
TD Reached
1990-09-23
Completion Date
1990-09-28
Release Date
1994-09-28

Formation Tops (12)

Wellbore Formation Era MD (m) TVDSS (m) Provider
15/20a- 10 Moray Mesozoic 1828.000 1634.136 Lloyds Register
Balder Tuff Cenozoic 1828.000 1634.136 Lloyds Register
Balder Cenozoic 1828.000 1634.136 Lloyds Register
Sele Mesozoic 1847.000 1653.135 Lloyds Register
Montrose Mesozoic 1892.000 1698.127 Lloyds Register
Lista Mesozoic 1892.000 1698.127 Lloyds Register
Balmoral Sandstone Cenozoic 1955.000 1761.116 Lloyds Register
Andrew Sandstone Cenozoic 1992.000 1798.111 Lloyds Register
Maureen Mesozoic 2050.000 1856.102 Lloyds Register
Maureen Reworked Unit Mesozoic 2050.000 1856.102 Lloyds Register
Chalk Mesozoic 2095.000 1901.096 Lloyds Register
Ekofisk Mesozoic 2095.000 1901.096 Lloyds Register

Lithology Intervals

15/20a- 10 Curve: SANDCOUNT 51 intervals  ·  MD 882.091 – 2129.333 m G:/NSTA_BigFiles/NSTA_Packages/Lloyds_Register/NSTA Centr...
Sandstone (50)
Limestone (1)

Interpreted Data Inventory (LR / WellStrat)

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

Hydrocarbon Occurrence (1)

Wellbore Category Code Formation / Litho Top MD (m) Base MD (m) Notes
15/20a- 10 Oil shows OS Andrew Sandstone unit 1892.0002800000002 -- 119 m thick

Rock Samples (35)

Wellbore Sample Top MD (m) Base MD (m) Key Lab Results Comments Notes
15/20a- 10 Cuttings 225.0 2127.0 -- -- --
15/20a- 10 Core #1 1945.97 1975.38 φ 28.1% (n=15) · Kh 508.7 mD (n=15) · Kv 152.7 mD (n=4) · So 17.0% (n=16) · Sw 61.1% (n=16) · Density 2.67 (n=15) · FSP 28.5 (n=16) · ROBERTSON GROUP PLC FRACTURES NPP; NVP; PLUG FAILED; SHALE NO ANALYSIS | SLEEVED SAMPLE; SST, F-MED, MOD IND.; SST, VF-F, MOD IND, PATCHY CALC CMT, TR PYR, W/SL MIC.; SST, VF-F, MOD IND, PATCHY CALC CMT, TR PYR. UKCS 232 .
15/20a- 10 ↳ Core Plug #1 1946.0 -- ROBERTSON GROUP PLC SHALE NO ANALYSIS --
15/20a- 10 ↳ Core Plug #1 1952.25 -- ROBERTSON GROUP PLC SHALE NO ANALYSIS --
15/20a- 10 ↳ Plug 27 1952.47 -- φ 19.8% · Kh 441.0 mD · Kv 448.0 mD · So 29.8% · Sw 30.9% · Density 2.67 · FSP 17.6 · ROBERTSON GROUP PLC SST, VF-F, MOD IND, PATCHY CALC CMT, TR PYR. --
15/20a- 10 ↳ Plug 28 1952.75 -- φ 18.0% · Kh 332.0 mD · So 42.6% · Sw 17.5% · Density 2.67 · FSP 14.8 · ROBERTSON GROUP PLC SST, VF-F, MOD IND, PATCHY CALC CMT, TR PYR, W/SL MIC. --
15/20a- 10 ↳ Core Plug #1 1953.0 -- ROBERTSON GROUP PLC SHALE NO ANALYSIS --
15/20a- 10 ↳ Core Plug #1 1953.75 -- ROBERTSON GROUP PLC SHALE NO ANALYSIS --
15/20a- 10 ↳ Plug 33 1954.05 -- φ 22.1% · Kh 637.0 mD · So 24.0% · Sw 35.1% · Density 2.64 · FSP 20.6 · ROBERTSON GROUP PLC NVP | SST, F-MED, MOD IND. --
15/20a- 10 ↳ Core Plug #1 1954.25 -- ROBERTSON GROUP PLC SHALE NO ANALYSIS --
15/20a- 10 ↳ Core Plug #1 1955.25 -- ROBERTSON GROUP PLC SHALE NO ANALYSIS --
15/20a- 10 ↳ Plug 39 1955.49 -- φ 26.1% · Kh 7.7 mD · Kv 10.0 mD · So 3.9% · Sw 76.6% · Density 2.69 · FSP 36.4 · ROBERTSON GROUP PLC SLEEVED SAMPLE --
15/20a- 10 ↳ Plug 40 1955.73 -- φ 32.8% · Kh 29.5 mD · So 5.8% · Sw 77.5% · Density 2.68 · FSP 30.4 · ROBERTSON GROUP PLC SLEEVED SAMPLE --
15/20a- 10 ↳ Plug 41 1956.03 -- φ 32.1% · Kh 34.7 mD · So 10.8% · Sw 75.3% · Density 2.69 · FSP 32.1 · ROBERTSON GROUP PLC SLEEVED SAMPLE --
15/20a- 10 ↳ Plug 42 1956.24 -- φ 31.1% · Kh 23.2 mD · Kv 17.8 mD · So 4.1% · Sw 81.5% · Density 2.70 · FSP 29.1 · ROBERTSON GROUP PLC SLEEVED SAMPLE --
15/20a- 10 ↳ Plug 43 1956.46 -- φ 31.3% · Kh 27.2 mD · So 5.0% · Sw 81.7% · Density 2.67 · FSP 32.0 · ROBERTSON GROUP PLC SLEEVED SAMPLE --
15/20a- 10 ↳ Core Plug #1 1956.75 -- ROBERTSON GROUP PLC SHALE NO ANALYSIS --
15/20a- 10 ↳ Core Plug #1 1957.0 -- ROBERTSON GROUP PLC SHALE NO ANALYSIS --
15/20a- 10 ↳ Plug 46 1957.25 -- φ 27.9% · Kh 8.9 mD · Density 2.70 · ROBERTSON GROUP PLC SLEEVED SAMPLE --
15/20a- 10 ↳ Plug 47 1957.51 -- φ 28.5% · Kh 24.8 mD · So 11.9% · Sw 69.6% · Density 2.70 · FSP 33.9 · ROBERTSON GROUP PLC SLEEVED SAMPLE --
15/20a- 10 ↳ Plug 48 1957.65 -- φ 29.7% · Kh 277.0 mD · Kv 135.0 mD · So 9.9% · Sw 78.5% · Density 2.65 · FSP 29.8 · ROBERTSON GROUP PLC SLEEVED SAMPLE --
15/20a- 10 ↳ Core Plug #1 1958.0 -- ROBERTSON GROUP PLC SHALE NO ANALYSIS --
15/20a- 10 ↳ Core Plug #1 1962.0 -- ROBERTSON GROUP PLC SHALE NO ANALYSIS --
15/20a- 10 ↳ Plug 66 1962.25 -- φ 28.4% · Kh 1670.0 mD · So 11.7% · Sw 67.9% · Density 2.65 · FSP 27.8 · ROBERTSON GROUP PLC NVP | SLEEVED SAMPLE --
15/20a- 10 ↳ Core Plug #1 1962.5 -- ROBERTSON GROUP PLC SHALE NO ANALYSIS --
15/20a- 10 ↳ Core Plug #1 1962.75 -- ROBERTSON GROUP PLC SHALE NO ANALYSIS --
15/20a- 10 ↳ Plug 69 1963.11 -- φ 29.7% · Kh 828.0 mD · So 20.7% · Sw 63.2% · Density 2.66 · FSP 29.4 · ROBERTSON GROUP PLC SLEEVED SAMPLE --
15/20a- 10 ↳ Plug 70 1963.22 -- φ 27.9% · Kh 1600.0 mD · So 18.8% · Sw 56.5% · Density 2.64 · FSP 27.4 · ROBERTSON GROUP PLC SLEEVED SAMPLE --
15/20a- 10 ↳ Plug 71 1963.5 -- So 18.8% · Sw 56.5% · FSP 27.4 · ROBERTSON GROUP PLC PLUG FAILED --
15/20a- 10 ↳ Plug 72 1963.78 -- φ 36.5% · Kh 1690.0 mD · So 21.7% · Sw 58.1% · Density 2.65 · FSP 31.9 · ROBERTSON GROUP PLC SLEEVED SAMPLE --
15/20a- 10 ↳ Plug 73 1964.0 -- ROBERTSON GROUP PLC SHALE NO ANALYSIS --
15/20a- 10 ↳ Plug 74 1964.25 -- So 33.2% · Sw 51.5% · FSP 36.0 · ROBERTSON GROUP PLC FRACTURES NPP --
15/20a- 10 ↳ Core Plug #1 1964.5 -- ROBERTSON GROUP PLC SHALE NO ANALYSIS --
15/20a- 10 ↳ Core Plug #1 1975.25 -- ROBERTSON GROUP PLC SHALE NO ANALYSIS --
15/20a- 10 Core #2 2006.99 2025.49 -- -- .

Wireline Log Inventory (Ingested Curves)

Wellbore Depth Start (m) Depth Stop (m) Typed Curves Auto-scaled Ingested
15/20a- 10 119.17680358886719 2129.180419921875 9 0 2026-08-06 08:19:27.788296+00 View Log

Source LAS Manifest (Best Curve per Type)

Open full Manifest browser
15/20a- 10
Curve Type Best Mnemonic Source Depth Start (m) Depth Stop (m) Samples
bulk_density RHOB CGG Digital Well Logs 1733.0928 2129.028 2599
bulk_density DEN OGA Batch Unzipped 1733.0928000000001 2129.79 2604
cable_tension TENS OGA Batch Unzipped 119.9388 2129.79 13189
caliper CAL CGG Digital Well Logs 794.6136 2129.028 8757
caliper CALI CGG Digital Well Logs 1733.0928 2129.028 2599
comp_sonic DTLF CGG Digital Well Logs 795.8328 2115.1596 8658
deep_resistivity ILD CGG Digital Well Logs 795.2232 2127.0468 8740
deep_resistivity RES_DEP OGA Batch Unzipped 797.8140000000001 2126.4372000000003 8719
density_correction DENC OGA Batch Unzipped 1733.0928000000001 2129.79 2604
density_correction DRHO CGG Digital Well Logs 1733.0928 2129.1804 2600
gamma_ray GRD CGG Digital Well Logs 1733.0928 2119.5792 2537
gamma_ray GR CGG Digital Well Logs 119.1768 2119.5792 13127
med_resistivity RES_MED OGA Batch Unzipped 797.052 2126.4372000000003 8724
med_resistivity ILM CGG Digital Well Logs 795.0708 2128.1136 8748
neutron_por NEU OGA Batch Unzipped 1733.0928000000001 2126.4372000000003 2582
neutron_por NPHI CGG Digital Well Logs 1733.2452 2123.2368 2560
pef PEF CGG Digital Well Logs 1733.0928 2129.028 2599

Survey Inventory (Deviation)

Open full Survey detail
Wellbore Stations Max MD (m) Max TVDSS (m) Survey File
15/20a- 10 259 2126.986 1933.077 G:\NSTA_BigFiles\OGA_Batch_Unzipped\UK_15\15_20a- 10\WELL_PATH\WDD_QC\15_20a-_10_wdd_WDD_FILE_46702722_DATACO_MAPPED.csv

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