Well Data Manager / Well Summary / 15/20a- 3

15/20a- 3

Decommissioned

Well Header

Well No
15/20a- 3
NSTA DEN No
3049
Well Name
--
Drill Seq No
3
Quadrant / Block
15 / 20 a
Surface Location
58.384653, 0.966243
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
1986-11-13
Source File
nsta_feature_service
Imported
2026-05-22 15:28

Wellbores (2)

15/20a- 3 Original
Abandoned Phase 3 View Log Interpreted Data Survey
Current Intent
Exploration
Original Intent
Exploration
Flow Class
Oil Show
Dev Type
--
Convention
--
Primary Target
E
Well Seq
WB1
Datum Type
Kelly Bushing
Datum Elev (m)
24.990
Ground Elev (m)
--
Water Depth (m)
134.97
TD MD (m)
2402.000
TD TVDSS (m)
2377.000
TD Datum Depth (m)
24.994
TD Datum Type
Kelly Bushing
Spud Date
1986-11-13
TD Reached
1986-12-07
Completion Date
1986-12-22
Release Date
1990-12-22
15/20a- 3Z Sidetrack Z parent: 15/20a- 3
Abandoned Phase 3 Interpreted Data Survey
Current Intent
Exploration
Original Intent
Exploration
Flow Class
--
Dev Type
--
Convention
--
Primary Target
--
Well Seq
--
Datum Type
Rotary Table
Datum Elev (m)
25.000
Ground Elev (m)
--
Water Depth (m)
134.97
TD MD (m)
2085.000
TD TVDSS (m)
--
TD Datum Depth (m)
--
TD Datum Type
--
Spud Date
1986-12-14
TD Reached
1986-12-17
Completion Date
1986-12-22
Release Date
1990-12-22

Formation Tops (16)

Wellbore Formation Era MD (m) TVDSS (m) Provider
15/20a- 3 Balder Cenozoic 1902.000 1630.732 Lloyds Register
Moray Mesozoic 1902.000 1630.732 Lloyds Register
Sele Mesozoic 1918.000 1646.731 Lloyds Register
Lista Mesozoic 1954.000 1682.715 Lloyds Register
Montrose Mesozoic 1954.000 1682.715 Lloyds Register
Balmoral Sandstone Cenozoic 1989.000 1717.720 Lloyds Register
Andrew Sandstone Cenozoic 2049.000 1777.531 Lloyds Register
Maureen Mesozoic 2139.000 1867.542 Lloyds Register
Maureen Sandstone Mesozoic 2144.000 1872.551 Lloyds Register
Maureen Reworked Unit Mesozoic 2201.000 1929.649 Lloyds Register
Chalk Mesozoic 2214.000 1942.671 Lloyds Register
Upper Cretaceous Chalk Mesozoic 2214.000 1942.671 Lloyds Register
Piper Mesozoic 2301.000 2029.703 Lloyds Register
Humber Mesozoic 2301.000 2029.703 Lloyds Register
Old Red Palaeozoic 2361.000 2089.697 Lloyds Register
Old Red Sandstone 2361.000 2089.697 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- 3 5 7 4 11 16 3 1 1 0 View
15/20a- 3Z 0 0 0 0 0 0 0 0 0 View

Hydrocarbon Occurrence (1)

Wellbore Category Code Formation / Litho Top MD (m) Base MD (m) Notes
15/20a- 3 Oil O Andrew Sandstone unit 1988.496912 -- 155 m thick

Rock Samples (63)

Wellbore Sample Top MD (m) Base MD (m) Key Lab Results Comments Notes
15/20a- 3 Cuttings 800.0 2395.0 -- -- --
15/20a- 3 Core #1 2002.96 2018.17 φ 30.0% (n=42) · Kh 2606.7 mD (n=36) · Kv 2125.0 mD (n=8) · So 7.1% (n=37) · Sw 57.3% (n=37) · Density 2.67 (n=42) · FSP 29.8 (n=37) · CORE LABORATORIES UK LTD PRESERVED SAMPLE - NO ANALYSIS; SANDSTONE / RUBBLE - NO ANALYSIS; SHALE / RUBBLE - NO ANALYSIS; SST/RUBBLE - NO ANALYSIS | CALC SST GRY F-VFGR EX CALC CMT PYR NOD; SST GRY CRS-FGR SIL CMT TR PYR CARB preserved samples taken .
15/20a- 3 ↳ Plug 01 2003.0 -- CORE LABORATORIES UK LTD SHALE / RUBBLE - NO ANALYSIS --
15/20a- 3 ↳ Plug 02 2003.25 -- CORE LABORATORIES UK LTD SHALE / RUBBLE - NO ANALYSIS --
15/20a- 3 ↳ Plug 03 2003.5 -- CORE LABORATORIES UK LTD SHALE / RUBBLE - NO ANALYSIS --
15/20a- 3 ↳ Plug 04 2003.75 -- CORE LABORATORIES UK LTD SHALE / RUBBLE - NO ANALYSIS --
15/20a- 3 ↳ Plug 05 2004.0 -- CORE LABORATORIES UK LTD SHALE / RUBBLE - NO ANALYSIS --
15/20a- 3 ↳ Plug 06 2004.25 -- CORE LABORATORIES UK LTD SHALE / RUBBLE - NO ANALYSIS --
15/20a- 3 ↳ Plug 07 2004.5 -- CORE LABORATORIES UK LTD SHALE / RUBBLE - NO ANALYSIS --
15/20a- 3 ↳ Plug 08 2004.75 -- CORE LABORATORIES UK LTD SHALE / RUBBLE - NO ANALYSIS --
15/20a- 3 ↳ Plug 09 2005.0 -- CORE LABORATORIES UK LTD SHALE / RUBBLE - NO ANALYSIS --
15/20a- 3 ↳ Plug 10 2005.25 -- CORE LABORATORIES UK LTD PRESERVED SAMPLE - NO ANALYSIS --
15/20a- 3 ↳ Plug 11 2005.5 -- φ 1.3% · Kh 0.0 mD · So 0.0% · Sw 55.5% · Density 2.69 · FSP 1.6 · CORE LABORATORIES UK LTD CALC SST GRY F-VFGR EX CALC CMT PYR NOD --
15/20a- 3 ↳ Plug 12 2005.75 -- CORE LABORATORIES UK LTD PRESERVED SAMPLE - NO ANALYSIS --
15/20a- 3 ↳ Plug 13 2006.0 -- φ 32.3% · Kh 4170.0 mD · So 11.0% · Sw 52.8% · Density 2.68 · FSP 33.2 · CORE LABORATORIES UK LTD SST GRY CRS-FGR SIL CMT TR PYR CARB --
15/20a- 3 ↳ Plug 14 2006.25 -- φ 30.0% · So 9.7% · Sw 56.3% · Density 2.65 · FSP 31.7 · CORE LABORATORIES UK LTD SST GRY CRS-FGR SIL CMT TR PYR CARB --
15/20a- 3 ↳ Plug 15 2006.5 -- φ 31.2% · Kh 4660.0 mD · So 9.4% · Sw 49.4% · Density 2.70 · FSP 32.0 · CORE LABORATORIES UK LTD SST GRY CRS-FGR SIL CMT TR PYR CARB --
15/20a- 3 ↳ Plug 16 2006.75 -- φ 29.1% · So 8.9% · Sw 48.5% · Density 2.65 · FSP 30.0 · CORE LABORATORIES UK LTD SST GRY CRS-FGR SIL CMT TR PYR CARB --
15/20a- 3 ↳ Plug 17 2007.0 -- CORE LABORATORIES UK LTD PRESERVED SAMPLE - NO ANALYSIS --
15/20a- 3 ↳ Plug 18 2007.25 -- φ 29.4% · Kh 3480.0 mD · So 9.1% · Sw 51.5% · Density 2.63 · FSP 29.6 · CORE LABORATORIES UK LTD SST GRY CRS-FGR SIL CMT TR PYR CARB --
15/20a- 3 ↳ Plug 19 2007.5 -- φ 31.0% · Kh 3210.0 mD · Kv 3170.0 mD · So 15.9% · Sw 37.1% · Density 2.68 · FSP 30.8 · CORE LABORATORIES UK LTD SST GRY CRS-FGR SIL CMT TR PYR CARB --
15/20a- 3 ↳ Plug 20 2007.75 -- φ 30.4% · Kh 2690.0 mD · So 18.2% · Sw 42.2% · Density 2.71 · FSP 31.8 · CORE LABORATORIES UK LTD SST GRY CRS-FGR SIL CMT TR PYR CARB --
15/20a- 3 ↳ Plug 21 2008.0 -- φ 32.5% · So 12.9% · Sw 42.2% · Density 2.69 · FSP 31.7 · CORE LABORATORIES UK LTD SST GRY CRS-FGR SIL CMT TR PYR CARB --
15/20a- 3 ↳ Plug 22 2008.25 -- φ 31.8% · Kh 2380.0 mD · Density 2.68 · CORE LABORATORIES UK LTD SST GRY CRS-FGR SIL CMT TR PYR CARB --
15/20a- 3 ↳ Plug 23 2008.5 -- φ 32.6% · So 19.3% · Sw 47.3% · Density 2.65 · FSP 31.3 · CORE LABORATORIES UK LTD SST GRY CRS-FGR SIL CMT TR PYR CARB --
15/20a- 3 ↳ Plug 24 2008.75 -- φ 31.6% · Kh 4680.0 mD · So 13.9% · Sw 45.5% · Density 2.63 · FSP 31.0 · CORE LABORATORIES UK LTD SST GRY CRS-FGR SIL CMT TR PYR CARB --
15/20a- 3 ↳ Plug 25 2009.0 -- φ 32.8% · Kh 1530.0 mD · So 12.8% · Sw 39.0% · Density 2.68 · FSP 28.7 · CORE LABORATORIES UK LTD SST GRY CRS-FGR SIL CMT TR PYR CARB --
15/20a- 3 ↳ Plug 26 2009.25 -- CORE LABORATORIES UK LTD PRESERVED SAMPLE - NO ANALYSIS --
15/20a- 3 ↳ Plug 27 2009.5 -- φ 31.7% · Kh 2180.0 mD · Kv 2060.0 mD · So 14.6% · Sw 38.3% · Density 2.67 · FSP 32.3 · CORE LABORATORIES UK LTD SST GRY CRS-FGR SIL CMT TR PYR CARB --
15/20a- 3 ↳ Plug 28 2009.75 -- φ 30.7% · Kh 1770.0 mD · So 16.7% · Sw 53.3% · Density 2.63 · FSP 30.5 · CORE LABORATORIES UK LTD SST GRY CRS-FGR SIL CMT TR PYR CARB --
15/20a- 3 ↳ Plug 29 2010.0 -- φ 33.5% · Kh 3050.0 mD · So 16.8% · Sw 38.8% · Density 2.68 · FSP 31.4 · CORE LABORATORIES UK LTD SST GRY CRS-FGR SIL CMT TR PYR CARB --
15/20a- 3 ↳ Plug 30 2010.25 -- CORE LABORATORIES UK LTD PRESERVED SAMPLE - NO ANALYSIS --
15/20a- 3 ↳ Plug 31 2010.5 -- φ 31.0% · Kv 3350.0 mD · So 17.8% · Sw 40.7% · Density 2.69 · FSP 29.2 · CORE LABORATORIES UK LTD SST GRY CRS-FGR SIL CMT TR PYR CARB --
15/20a- 3 ↳ Plug 32 2010.75 -- φ 32.6% · Kh 3680.0 mD · So 16.0% · Sw 44.7% · Density 2.68 · FSP 31.2 · CORE LABORATORIES UK LTD SST GRY CRS-FGR SIL CMT TR PYR CARB --
15/20a- 3 ↳ Plug 33 2011.0 -- φ 34.1% · Kh 3770.0 mD · So 15.6% · Sw 43.4% · Density 2.69 · FSP 32.5 · CORE LABORATORIES UK LTD SST GRY CRS-FGR SIL CMT TR PYR CARB --
15/20a- 3 ↳ Plug 34 2011.25 -- φ 32.1% · Kh 3080.0 mD · So 13.5% · Sw 46.0% · Density 2.68 · FSP 33.9 · CORE LABORATORIES UK LTD SST GRY CRS-FGR SIL CMT TR PYR CARB --
15/20a- 3 ↳ Plug 35 2011.5 -- CORE LABORATORIES UK LTD PRESERVED SAMPLE - NO ANALYSIS --
15/20a- 3 ↳ Plug 36 2011.75 -- φ 32.4% · Kh 3810.0 mD · So 0.0% · Sw 76.6% · Density 2.70 · FSP 32.0 · CORE LABORATORIES UK LTD SST GRY CRS-FGR SIL CMT TR PYR CARB --
15/20a- 3 ↳ Plug 37 2012.0 -- φ 32.7% · Kh 2720.0 mD · So 0.0% · Sw 81.0% · Density 2.68 · FSP 31.9 · CORE LABORATORIES UK LTD SST GRY CRS-FGR SIL CMT TR PYR CARB --
15/20a- 3 ↳ Plug 38 2012.25 -- φ 30.1% · Density 2.62 · CORE LABORATORIES UK LTD SST/RUBBLE - NO ANALYSIS --
15/20a- 3 ↳ Plug 39 2012.5 -- φ 30.3% · Kh 3720.0 mD · So 10.6% · Sw 62.7% · Density 2.62 · FSP 34.5 · CORE LABORATORIES UK LTD SST GRY CRS-FGR SIL CMT TR PYR CARB --
15/20a- 3 ↳ Plug 40 2012.75 -- CORE LABORATORIES UK LTD PRESERVED SAMPLE - NO ANALYSIS --
15/20a- 3 ↳ Plug 41 2013.0 -- φ 32.9% · Kh 3090.0 mD · So 0.0% · Sw 64.9% · Density 2.68 · FSP 35.7 · CORE LABORATORIES UK LTD SST GRY CRS-FGR SIL CMT TR PYR CARB --
15/20a- 3 ↳ Plug 42 2013.25 -- φ 30.8% · Kh 2630.0 mD · So 0.0% · Sw 60.8% · Density 2.68 · FSP 30.6 · CORE LABORATORIES UK LTD SST GRY CRS-FGR SIL CMT TR PYR CARB --
15/20a- 3 ↳ Plug 43 2013.5 -- φ 28.7% · Kh 2020.0 mD · Kv 2500.0 mD · So 0.0% · Sw 78.6% · Density 2.67 · FSP 29.2 · CORE LABORATORIES UK LTD SST GRY CRS-FGR SIL CMT TR PYR CARB --
15/20a- 3 ↳ Plug 44 2013.75 -- φ 30.1% · Kh 2520.0 mD · So 0.0% · Sw 71.7% · Density 2.68 · FSP 26.9 · CORE LABORATORIES UK LTD SST GRY CRS-FGR SIL CMT TR PYR CARB --
15/20a- 3 ↳ Plug 45 2014.0 -- φ 30.7% · Kh 2080.0 mD · So 0.0% · Sw 71.0% · Density 2.68 · FSP 27.2 · CORE LABORATORIES UK LTD SST GRY CRS-FGR SIL CMT TR PYR CARB --
15/20a- 3 ↳ Plug 46 2014.25 -- φ 30.7% · Kh 2150.0 mD · So 0.0% · Sw 69.8% · Density 2.67 · FSP 27.7 · CORE LABORATORIES UK LTD SST GRY CRS-FGR SIL CMT TR PYR CARB --
15/20a- 3 ↳ Plug 47 2014.5 -- φ 27.7% · Kh 1360.0 mD · Kv 1240.0 mD · So 0.0% · Sw 65.6% · Density 2.66 · FSP 29.2 · CORE LABORATORIES UK LTD SST GRY CRS-FGR SIL CMT TR PYR CARB --
15/20a- 3 ↳ Plug 48 2014.75 -- CORE LABORATORIES UK LTD PRESERVED SAMPLE - NO ANALYSIS --
15/20a- 3 ↳ Plug 49 2015.0 -- φ 30.7% · Kh 2920.0 mD · So 0.0% · Sw 75.0% · Density 2.67 · FSP 30.5 · CORE LABORATORIES UK LTD SST GRY CRS-FGR SIL CMT TR PYR CARB --
15/20a- 3 ↳ Plug 50 2015.25 -- φ 28.6% · Kh 1760.0 mD · So 0.0% · Sw 59.4% · Density 2.67 · FSP 25.4 · CORE LABORATORIES UK LTD SST GRY CRS-FGR SIL CMT TR PYR CARB --
15/20a- 3 ↳ Plug 51 2015.5 -- φ 25.9% · Kh 1540.0 mD · Kv 1140.0 mD · So 0.0% · Sw 80.2% · Density 2.65 · FSP 26.6 · CORE LABORATORIES UK LTD SST GRY CRS-FGR SIL CMT TR PYR CARB --
15/20a- 3 ↳ Plug 52 2015.75 -- φ 28.9% · Kh 1790.0 mD · So 0.0% · Sw 66.2% · Density 2.66 · FSP 29.2 · CORE LABORATORIES UK LTD SST GRY CRS-FGR SIL CMT TR PYR CARB --
15/20a- 3 ↳ Plug 53 2016.0 -- φ 29.2% · Kh 2650.0 mD · So 0.0% · Sw 62.6% · Density 2.67 · FSP 31.5 · CORE LABORATORIES UK LTD SST GRY CRS-FGR SIL CMT TR PYR CARB --
15/20a- 3 ↳ Plug 54 2016.25 -- φ 31.1% · Kh 2840.0 mD · Density 2.68 · CORE LABORATORIES UK LTD SST GRY CRS-FGR SIL CMT TR PYR CARB --
15/20a- 3 ↳ Plug 55 2016.5 -- φ 28.6% · Kh 1690.0 mD · Kv 2070.0 mD · So 0.0% · Sw 66.2% · Density 2.65 · FSP 31.1 · CORE LABORATORIES UK LTD SST GRY CRS-FGR SIL CMT TR PYR CARB --
15/20a- 3 ↳ Plug 56 2016.75 -- φ 30.0% · Kh 2200.0 mD · So 0.0% · Sw 66.8% · Density 2.70 · FSP 30.7 · CORE LABORATORIES UK LTD SST GRY CRS-FGR SIL CMT TR PYR CARB --
15/20a- 3 ↳ Plug 57 2017.0 -- CORE LABORATORIES UK LTD PRESERVED SAMPLE - NO ANALYSIS --
15/20a- 3 ↳ Plug 58 2017.25 -- φ 31.0% · Kh 2750.0 mD · Density 2.67 · CORE LABORATORIES UK LTD SST GRY CRS-FGR SIL CMT TR PYR CARB --
15/20a- 3 ↳ Plug 59 2017.5 -- φ 29.9% · Kh 1800.0 mD · Kv 1470.0 mD · So 0.0% · Sw 68.7% · Density 2.66 · FSP 29.2 · CORE LABORATORIES UK LTD SST GRY CRS-FGR SIL CMT TR PYR CARB --
15/20a- 3 ↳ Plug 60 2017.75 -- φ 29.0% · Kh 1470.0 mD · Density 2.66 · CORE LABORATORIES UK LTD SST GRY CRS-FGR SIL CMT TR PYR CARB --
15/20a- 3 ↳ Plug 61 2018.0 -- CORE LABORATORIES UK LTD SANDSTONE / RUBBLE - NO ANALYSIS --

Wireline Log Inventory (Ingested Curves)

Wellbore Depth Start (m) Depth Stop (m) Typed Curves Auto-scaled Ingested
15/20a- 3 768.55322265625 2375.458740234375 11 0 2026-08-06 08:20:25.938296+00 View Log

Source LAS Manifest (Best Curve per Type)

Open full Manifest browser
15/20a- 3
Curve Type Best Mnemonic Source Depth Start (m) Depth Stop (m) Samples
bulk_density DEN OGA Batch Unzipped 1902.0000060000002 2375.79999312 2370
bulk_density RHOB CGG Digital Well Logs 1901.19 2375.4588 3113
caliper CALI CGG Digital Well Logs 788.67 2375.4588 10392
comp_sonic DT CGG Digital Well Logs 789.7368 2352.4464 10255
deep_resistivity ILD CGG Digital Well Logs 790.194 2375.4588 10403
deep_resistivity RES_DEP OGA Batch Unzipped 789.9999948 2375.79999312 7930
density_correction DRHO CGG Digital Well Logs 1901.7996 2375.4588 3109
density_correction DENC OGA Batch Unzipped 1902.0000060000002 2375.79999312 2370
gamma_ray GR CGG Digital Well Logs 768.5532 2370.582 10513
gamma_ray CGR CGG Digital Well Logs 1897.6848 2369.058 3094
gamma_ray SGR CGG Digital Well Logs 1897.6848 2369.058 3094
med_resistivity RES_MED OGA Batch Unzipped 789.9999948 2375.79999312 7930
med_resistivity ILM CGG Digital Well Logs 790.0416 2375.4588 10404
neutron_por NEU OGA Batch Unzipped 1898.20000344 2375.79999312 2389
neutron_por NPHI CGG Digital Well Logs 1900.428 2372.4108 3098
pef PEF CGG Digital Well Logs 1901.3424 2375.4588 3112
potassium POTA CGG Digital Well Logs 1897.6848 2368.9056 3093
shallow_resistivity RES_SLW OGA Batch Unzipped 1902.9999938400001 2375.79999312 2365
shallow_resistivity SFLU CGG Digital Well Logs 1902.1044 2375.4588 3107
sp SP CGG Digital Well Logs 1901.6472 2375.4588 3110
thorium THOR CGG Digital Well Logs 1897.6848 2368.9056 3093
uranium URAN CGG Digital Well Logs 1897.6848 2368.9056 3093

Survey Inventory (Deviation)

Open full Survey detail
Wellbore Stations Max MD (m) Max TVDSS (m) Survey File
15/20a- 3 64 2396.000 2124.694 G:\NSTA_BigFiles\OGA_Batch_Unzipped\UK_15\15_20a- 3\WELL_PATH\WDD_QC\15_20a-_3_wdd_WDD_FILE_234380682_DATACO_MAPPED.csv
15/20a- 3 66 2085.000 1813.449 G:\NSTA_BigFiles\OGA_Batch_Unzipped\UK_15\15_20a- 3\WELL_PATH\WDD_QC\15_20a-_3_wdd_WDD_FILE_234380688_DATACO_MAPPED.csv
15/20a- 3Z 0 -- -- --

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