87/12- 1

Decommissioned

Well Header

Well No
87/12- 1
NSTA DEN No
--
Well Name
--
Drill Seq No
1
Quadrant / Block
87 / 12
Surface Location
49.570281, -4.726756
Source Datum
ED50
Subsea Well
Unknown
Platform
--
Slot No
--
Operator
BP EXPLORATION OPERATING COMPANY LIMITED
Original Operator
BP
Sub Area Operator
BP EXPLORATION OPERATING COMPANY LIMITED
Licence No
P285
Licence Type
Production
Spud Date
1979-03-13
Source File
nsta_feature_service
Imported
2026-05-22 15:28

Wellbores (2)

87/12- 1 Original
Abandoned Phase 3 Survey
Current Intent
Exploration
Original Intent
Exploration
Flow Class
--
Dev Type
--
Convention
--
Primary Target
--
Well Seq
--
Datum Type
--
Datum Elev (m)
25.880
Ground Elev (m)
--
Water Depth (m)
90.86
TD MD (m)
80.000
TD TVDSS (m)
--
TD Datum Depth (m)
--
TD Datum Type
--
Spud Date
1979-03-13
TD Reached
1979-03-16
Completion Date
1979-03-20
Release Date
1983-03-20
87/12- 1A Sidetrack A
Current Intent
Exploration
Original Intent
Exploration
Flow Class
Dry Hole
Dev Type
--
Convention
--
Primary Target
--
Well Seq
WB1
Datum Type
Kelly Bushing
Datum Elev (m)
25.878
Ground Elev (m)
--
Water Depth (m)
90.86
TD MD (m)
2215.530
TD TVDSS (m)
2215.530
TD Datum Depth (m)
25.878
TD Datum Type
Kelly Bushing
Spud Date
1979-03-21
TD Reached
1979-05-23
Completion Date
1979-05-24
Release Date
1983-05-24

Formation Tops (11)

Wellbore Formation Era MD (m) TVDSS (m) Provider
87/12- 1A Sea Bed 117.000 91.122 BGS
Top Chalk Gp 117.000 91.122 BGS
Top Selborne Gp 342.000 316.122 BGS
Top Gault-Greensands (Undiv) 342.000 316.122 BGS
Top Wealden Gp 415.000 389.122 BGS
Top Purbeck Gp 422.000 396.122 BGS
Upper Jurassic Mesozoic 453.000 427.122 BGS
Top Mercia Gp 465.000 439.122 BGS
Top Sherwood Sandstone Gp Mesozoic 724.000 698.122 BGS
Permo-Triassic Mesozoic 778.000 752.122 BGS
Devono-Carboniferous Palaeozoic 1763.000 1737.122 BGS

Lithology Intervals

87/12- 1A Curve: SANDCOUNT 156 intervals  ·  MD 193.700 – 2241.347 m G:/NSTA_BigFiles/NSTA_Packages/Lloyds_Register/SW Approac...
Sandstone (145)
Limestone (8)
Anhydrite (3)

Interpreted Data Inventory (LR / WellStrat)

Open Interpreted Data Log
Wellbore Groups Formations Members Strat Intervals Tops HC Occ Core Cuttings DSTs
87/12- 1 0 0 0 0 0 0 0 0 0
87/12- 1A 8 1 0 22 11 3 4 1 0 View

Hydrocarbon Occurrence (0)

No hydrocarbon shows or DSTs recorded for this well.

Rock Samples (51)

Wellbore Sample Top MD (m) Base MD (m) Key Lab Results Comments Notes
87/12- 1A Cuttings 193.0 2234.98 -- -- various intervals .
87/12- 1A Core #1 738.29 745.78 φ 16.7% (n=30) · Kh 387.9 mD (n=30) · Kv 33.7 mD (n=7) · Density 2.66 (n=7) · CORE LABS -- .
87/12- 1A ↳ Plug 1 738.31 -- φ 14.3% · Kh 2.1 mD · CORE LABS -- --
87/12- 1A ↳ Plug 2 738.5 -- φ 22.7% · Kh 354.0 mD · CORE LABS -- --
87/12- 1A ↳ Plug 3 738.75 -- φ 22.1% · Kh 34.0 mD · CORE LABS -- --
87/12- 1A ↳ Plug 4 739.0 -- φ 23.3% · Kh 1345.0 mD · Kv 0.3 mD · Density 2.63 · CORE LABS -- --
87/12- 1A ↳ Plug 5 739.25 -- φ 12.5% · Kh 15.0 mD · CORE LABS -- --
87/12- 1A ↳ Plug 6 739.5 -- φ 13.8% · Kh 0.3 mD · CORE LABS -- --
87/12- 1A ↳ Plug 7 739.75 -- φ 13.5% · Kh 1.7 mD · CORE LABS -- --
87/12- 1A ↳ Plug 8 740.0 -- φ 20.9% · Kh 2528.0 mD · Kv 134.0 mD · Density 2.66 · CORE LABS -- --
87/12- 1A ↳ Plug 9 740.25 -- φ 20.8% · Kh 297.0 mD · CORE LABS -- --
87/12- 1A ↳ Plug 10 740.5 -- φ 32.3% · Kh 2481.0 mD · CORE LABS -- --
87/12- 1A ↳ Plug 11 740.75 -- φ 19.5% · Kh 355.0 mD · CORE LABS -- --
87/12- 1A ↳ Plug 12 741.0 -- φ 16.1% · Kh 2.3 mD · Kv 0.5 mD · Density 2.67 · CORE LABS -- --
87/12- 1A ↳ Plug 13 741.25 -- φ 17.0% · Kh 5.4 mD · CORE LABS -- --
87/12- 1A ↳ Plug 14 741.5 -- φ 3.4% · Kh 0.3 mD · CORE LABS -- --
87/12- 1A ↳ Plug 15 741.75 -- φ 25.1% · Kh 2869.0 mD · CORE LABS -- --
87/12- 1A ↳ Plug 16 742.0 -- φ 21.1% · Kh 25.0 mD · Kv 94.0 mD · Density 2.65 · CORE LABS -- --
87/12- 1A ↳ Plug 17 742.25 -- φ 6.6% · Kh 1.1 mD · CORE LABS -- --
87/12- 1A ↳ Plug 18 742.5 -- φ 4.2% · Kh 0.2 mD · CORE LABS -- --
87/12- 1A ↳ Plug 19 742.75 -- φ 11.7% · Kh 0.2 mD · CORE LABS -- --
87/12- 1A ↳ Plug 20 743.0 -- φ 14.3% · Kh 59.0 mD · Kv 0.4 mD · Density 2.63 · CORE LABS -- --
87/12- 1A ↳ Plug 21 743.25 -- φ 20.7% · Kh 681.0 mD · CORE LABS -- --
87/12- 1A ↳ Plug 22 743.5 -- φ 12.1% · Kh 1.2 mD · CORE LABS -- --
87/12- 1A ↳ Plug 23 743.75 -- φ 23.8% · Kh 314.0 mD · CORE LABS -- --
87/12- 1A ↳ Plug 24 744.0 -- φ 10.8% · Kh 0.5 mD · Kv 3.4 mD · Density 2.72 · CORE LABS -- --
87/12- 1A ↳ Plug 25 744.25 -- φ 17.5% · Kh 32.0 mD · CORE LABS -- --
87/12- 1A ↳ Plug 26 744.5 -- φ 12.9% · Kh 4.6 mD · CORE LABS -- --
87/12- 1A ↳ Plug 27 744.75 -- φ 19.5% · Kh 138.0 mD · CORE LABS -- --
87/12- 1A ↳ Plug 28 745.0 -- φ 12.8% · Kh 5.6 mD · Kv 3.5 mD · Density 2.65 · CORE LABS -- --
87/12- 1A ↳ Plug 29 745.25 -- φ 14.3% · Kh 0.4 mD · CORE LABS -- --
87/12- 1A ↳ Plug 30 745.5 -- φ 22.7% · Kh 84.0 mD · CORE LABS -- --
87/12- 1A Core #2 1697.19 1703.98 φ 5.6% (n=9) · Kh 0.1 mD (n=9) · Density 2.77 (n=3) · CORE LABS -- .
87/12- 1A ↳ Plug 31 1697.25 -- φ 6.7% · Kh 0.5 mD · CORE LABS -- --
87/12- 1A ↳ Plug 32 1697.5 -- φ 5.2% · Kh 0.0 mD · CORE LABS -- --
87/12- 1A ↳ Plug 33 1697.75 -- φ 10.2% · Kh 0.0 mD · CORE LABS -- --
87/12- 1A ↳ Plug 34 1698.0 -- φ 10.8% · Kh 0.1 mD · Density 2.73 · CORE LABS -- --
87/12- 1A ↳ Plug 35 1698.25 -- φ 4.5% · Kh 0.1 mD · CORE LABS -- --
87/12- 1A ↳ Plug 39 1699.25 -- φ 3.0% · Kh 0.0 mD · Density 2.81 · CORE LABS -- --
87/12- 1A ↳ Plug 40 1699.5 -- φ 2.9% · Kh 0.0 mD · CORE LABS -- --
87/12- 1A ↳ Plug 41 1699.75 -- φ 3.7% · Kh 0.0 mD · CORE LABS -- --
87/12- 1A ↳ Plug 42 1700.0 -- φ 3.1% · Kh 0.0 mD · Density 2.77 · CORE LABS -- --
87/12- 1A Core #3 1925.48 1932.68 φ 1.0% (n=3) · Kh 0.0 mD (n=2) · Density 2.71 (n=3) · CORE LABS -- .
87/12- 1A ↳ Plug 60 1930.0 -- φ 1.8% · Density 2.72 · CORE LABS -- --
87/12- 1A ↳ Plug 64 1931.0 -- φ 0.6% · Kh 0.0 mD · Density 2.69 · CORE LABS -- --
87/12- 1A ↳ Plug 68 1932.0 -- φ 0.6% · Kh 0.0 mD · Density 2.71 · CORE LABS -- --
87/12- 1A Core #4 2237.66 2242.57 φ 2.5% (n=4) · Kh 0.0 mD (n=4) · Density 2.80 (n=4) · CORE LABS -- .
87/12- 1A ↳ Plug 75 2238.0 -- φ 1.6% · Kh 0.0 mD · Density 2.73 · CORE LABS -- --
87/12- 1A ↳ Plug 79 2239.0 -- φ 3.6% · Kh 0.0 mD · Density 2.86 · CORE LABS -- --
87/12- 1A ↳ Plug 83 2240.0 -- φ 2.4% · Kh 0.0 mD · Density 2.86 · CORE LABS -- --
87/12- 1A ↳ Plug 87 2241.0 -- φ 2.5% · Kh 0.0 mD · Density 2.75 · CORE LABS -- --

Wireline Log Inventory (Ingested Curves)

No wireline log curves ingested for this well.

Source LAS Manifest (Best Curve per Type)

Open full Manifest browser

No scanned LAS source files matched to this well.

Survey Inventory (Deviation)

Open full Survey detail
Wellbore Stations Max MD (m) Max TVDSS (m) Survey File
87/12- 1 0 -- -- --
87/12- 1A 0 -- -- --

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