21/16-A1

Decommissioned

Well Header

Well No
21/16-A1
NSTA DEN No
5848
Well Name
--
Drill Seq No
1
Quadrant / Block
21 / 16
Surface Location
57.466258, 0.159854
Source Datum
ED50
Subsea Well
Unknown
Platform
A
Slot No
AC
Operator
SPIRIT ENERGY NORTH SEA OIL LIMITED
Original Operator
--
Sub Area Operator
SPIRIT ENERGY NORTH SEA OIL LIMITED
Licence No
P743
Licence Type
Production
Spud Date
1996-05-01
Source File
nsta_feature_service
Imported
2026-05-22 15:28

Wellbores (2)

21/16-A1 Original
Current Intent
Development
Original Intent
Development
Flow Class
Dry Hole
Dev Type
--
Convention
--
Primary Target
PC
Well Seq
WB1
Datum Type
Kelly Bushing
Datum Elev (m)
25.908
Ground Elev (m)
--
Water Depth (m)
90.53
TD MD (m)
2388.108
TD TVDSS (m)
2362.200
TD Datum Depth (m)
25.908
TD Datum Type
Rotary Table
Spud Date
1996-05-01
TD Reached
1996-05-27
Completion Date
1996-06-02
Release Date
2000-06-02
21/16-A1Z Sidetrack Z parent: 21/16-A1
Current Intent
Development
Original Intent
Development
Flow Class
Dry Hole
Dev Type
--
Convention
--
Primary Target
--
Well Seq
WB2
Datum Type
Rotary Table
Datum Elev (m)
25.908
Ground Elev (m)
--
Water Depth (m)
90.53
TD MD (m)
2423.160
TD TVDSS (m)
2397.252
TD Datum Depth (m)
25.908
TD Datum Type
Rotary Table
Spud Date
1996-08-12
TD Reached
1996-08-26
Completion Date
1999-11-10
Release Date
2003-11-10

Formation Tops (0)

No formation tops ingested for this well.

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
21/16-A1 0 0 0 0 0 0 2 1 0 View
21/16-A1Z 0 0 0 0 0 0 1 1 0 View

Hydrocarbon Occurrence (0)

No hydrocarbon shows or DSTs recorded for this well.

Rock Samples (24)

Wellbore Sample Top MD (m) Base MD (m) Key Lab Results Comments Notes
21/16-A1 Cuttings 1828.8 2380.49 -- -- --
21/16-A1 Core #1 2346.35 2349.79 φ 13.1% (n=4) · Kh 0.9 mD (n=4) · Density 2.85 (n=4) · ROBERTSON RESEARCH INTERNATIONAL LIMITED SILTSTONE - NO ANALYSIS | CGL, MX, F, MOD IND, CLS, SST MED-CRS, SST, F, SL SEALED FRACS, TR ?GLC, SL BIOCL DEB.; GLC SST, F, OCC MED, MOD IND, SL PYR.; GLC SST, MED, PATCHY DOL CMT.; GLS SST, F-MED, MOD-W.IND, ?S NODS. --
21/16-A1 ↳ Plug 01 2346.381 -- φ 15.1% · Kh 0.6 mD · Density 2.85 · ROBERTSON RESEARCH INTERNATIONAL LIMITED GLC SST, F, OCC MED, MOD IND, SL PYR. --
21/16-A1 ↳ Plug 02 2346.655 -- φ 11.5% · Kh 0.0 mD · Density 2.88 · ROBERTSON RESEARCH INTERNATIONAL LIMITED GLC SST, MED, PATCHY DOL CMT. --
21/16-A1 ↳ Plug 03 2346.96 -- φ 11.2% · Kh 0.0 mD · Density 2.81 · ROBERTSON RESEARCH INTERNATIONAL LIMITED GLS SST, F-MED, MOD-W.IND, ?S NODS. --
21/16-A1 ↳ Plug 04 2347.265 -- φ 14.4% · Kh 2.9 mD · Density 2.85 · ROBERTSON RESEARCH INTERNATIONAL LIMITED CGL, MX, F, MOD IND, CLS, SST MED-CRS, SST, F, SL SEALED FRACS, TR ?GLC, SL BIOCL DEB. --
21/16-A1 ↳ Core Plug #1 2347.57 -- ROBERTSON RESEARCH INTERNATIONAL LIMITED SILTSTONE - NO ANALYSIS --
21/16-A1 ↳ Core Plug #1 2349.703 -- ROBERTSON RESEARCH INTERNATIONAL LIMITED SILTSTONE - NO ANALYSIS --
21/16-A1 Core #2 2350.01 2371.53 φ 11.9% (n=10) · Kh 0.2 mD (n=7) · Density 2.74 (n=10) · ROBERTSON RESEARCH INTERNATIONAL LIMITED ANHYDRITC - NO ANALYSIS; FRACTURED; SILTY MUDSTONE-NO ANALYSIS | SST, SILT-VF, V ARG, MOD IND, WAVY LAMS,CMN FRACS.; SST, VF, MOD IND, V DOL; SST, VF, MOD IND, V DOL, TR PYR.; SST, VF, SL ARG, MOD IND, FEACS, V DOL, DISSEM PYR, WAVY LAMS.; SST, VF, SL ARG, MOD-W.IND, V DOL.; SST, VF-F, SL ARG, MOD IND, SEALED FRACS, DOL.; SST, VF-F, SL ARG, MOD IND, SL SEALED FRACS, DOL.; SST/SLT-VF, MOD IND, WAVY LAMS, FRAC INFILLED W/WHITE CLAY AND MED SND. --
21/16-A1 ↳ Core Plug #2 2352.142 -- ROBERTSON RESEARCH INTERNATIONAL LIMITED SILTY MUDSTONE-NO ANALYSIS --
21/16-A1 ↳ Plug 21 2352.446 -- φ 11.7% · Density 2.78 · ROBERTSON RESEARCH INTERNATIONAL LIMITED FRACTURED | SST, VF, SL ARG, MOD IND, FEACS, V DOL, DISSEM PYR, WAVY LAMS. --
21/16-A1 ↳ Plug 22 2352.751 -- φ 12.4% · Density 2.77 · ROBERTSON RESEARCH INTERNATIONAL LIMITED FRACTURED | SST, SILT-VF, V ARG, MOD IND, WAVY LAMS,CMN FRACS. --
21/16-A1 ↳ Plug 23 2353.086 -- φ 10.6% · Density 2.74 · ROBERTSON RESEARCH INTERNATIONAL LIMITED FRACTURED | SST/SLT-VF, MOD IND, WAVY LAMS, FRAC INFILLED W/WHITE CLAY AND MED SND. --
21/16-A1 ↳ Plug 24Q 2353.513 -- φ 10.9% · Kh 0.0 mD · Density 2.74 · ROBERTSON RESEARCH INTERNATIONAL LIMITED SST, VF, MOD IND, V DOL, TR PYR. --
21/16-A1 ↳ Plug 25Q 2353.818 -- φ 11.2% · Kh 0.1 mD · Density 2.73 · ROBERTSON RESEARCH INTERNATIONAL LIMITED SST, VF, SL ARG, MOD-W.IND, V DOL. --
21/16-A1 ↳ Plug 26Q 2354.199 -- φ 12.4% · Kh 0.0 mD · Density 2.72 · ROBERTSON RESEARCH INTERNATIONAL LIMITED SST, VF, MOD IND, V DOL --
21/16-A1 ↳ Plug 27Q 2354.412 -- φ 12.8% · Kh 0.1 mD · Density 2.74 · ROBERTSON RESEARCH INTERNATIONAL LIMITED SST, VF, MOD IND, V DOL --
21/16-A1 ↳ Plug 28Q 2354.717 -- φ 13.0% · Kh 0.1 mD · Density 2.73 · ROBERTSON RESEARCH INTERNATIONAL LIMITED SST, VF, MOD IND, V DOL --
21/16-A1 ↳ Plug 29Q 2354.976 -- φ 10.9% · Kh 0.0 mD · Density 2.72 · ROBERTSON RESEARCH INTERNATIONAL LIMITED SST, VF-F, SL ARG, MOD IND, SEALED FRACS, DOL. --
21/16-A1 ↳ Plug 32Q 2355.799 -- φ 13.6% · Kh 0.9 mD · Density 2.73 · ROBERTSON RESEARCH INTERNATIONAL LIMITED SST, VF-F, SL ARG, MOD IND, SL SEALED FRACS, DOL. --
21/16-A1 ↳ Core Plug #2 2356.104 -- ROBERTSON RESEARCH INTERNATIONAL LIMITED ANHYDRITC - NO ANALYSIS --
21/16-A1 ↳ Core Plug #2 2365.431 -- ROBERTSON RESEARCH INTERNATIONAL LIMITED ANHYDRITC - NO ANALYSIS --
21/16-A1Z Cuttings 1478.28 2423.16 -- -- --
21/16-A1Z Core #1 2332.33 2338.73 -- -- --

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
21/16-A1 0 -- -- --
21/16-A1Z 0 -- -- --

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