21/28a- 5

Decommissioned

Well Header

Well No
21/28a- 5
NSTA DEN No
3217
Well Name
--
Drill Seq No
5
Quadrant / Block
21 / 28 a
Surface Location
57.158945, 0.576033
Source Datum
ED50
Subsea Well
No
Platform
--
Slot No
--
Operator
ANTRIM ENERGY (VENTURES) LIMITED
Original Operator
--
Sub Area Operator
ANTRIM ENERGY (VENTURES) LIMITED
Licence No
P77
Licence Type
Production
Spud Date
1987-08-22
Source File
nsta_feature_service
Imported
2026-05-22 15:28

Wellbores (1)

21/28a- 5 Original
Current Intent
Appraisal
Original Intent
Appraisal
Flow Class
Oil Show
Dev Type
--
Convention
--
Primary Target
E
Well Seq
WB1
Datum Type
Kelly Bushing
Datum Elev (m)
25.908
Ground Elev (m)
--
Water Depth (m)
89.31
TD MD (m)
1597.150
TD TVDSS (m)
1538.021
TD Datum Depth (m)
25.908
TD Datum Type
Kelly Bushing
Spud Date
1987-08-22
TD Reached
1987-09-02
Completion Date
1987-09-08
Release Date
1991-09-08

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
21/28a- 5 4 5 2 13 0 1 3 1 0 View

Hydrocarbon Occurrence (1)

Wellbore Category Code Formation / Litho Top MD (m) Base MD (m) Notes
21/28a- 5 Oil shows OS Strathtay Formation 1359.7128 -- 88 m thick

Rock Samples (48)

Wellbore Sample Top MD (m) Base MD (m) Key Lab Results Comments Notes
21/28a- 5 Cuttings 198.12 1597.15 -- -- .
21/28a- 5 Core #1 1404.21 1412.75 ROBERTSON RESEARCH CLAYSTONE - NO ANALYSIS re-spud in as 21/28a- 5A
21/28a- 5 ↳ Core Plug #1 1404.214 -- ROBERTSON RESEARCH CLAYSTONE - NO ANALYSIS --
21/28a- 5 Core #2 1431.65 1448.41 φ 36.7% (n=28) · Kh 8897.9 mD (n=28) · Kv 9000.0 mD (n=6) · So 15.0% (n=27) · Sw 63.8% (n=27) · Density 2.67 (n=28) · FSP 36.1 (n=27) · ROBERTSON RESEARCH CLAYSTONE - NO ANALYSIS; NFSP --
21/28a- 5 ↳ Plug 01 1436.248 -- φ 33.9% · Kh 422.0 mD · So 6.8% · Sw 80.5% · Density 2.76 · FSP 34.1 · ROBERTSON RESEARCH -- --
21/28a- 5 ↳ Core Plug #2 1436.522 -- ROBERTSON RESEARCH CLAYSTONE - NO ANALYSIS --
21/28a- 5 ↳ Core Plug #2 1439.875 -- ROBERTSON RESEARCH CLAYSTONE - NO ANALYSIS --
21/28a- 5 ↳ Plug 14 1440.271 -- φ 35.6% · Kh 9210.0 mD · Kv 8890.0 mD · So 25.0% · Sw 54.1% · Density 2.65 · FSP 33.1 · ROBERTSON RESEARCH -- --
21/28a- 5 ↳ Plug 15 1440.454 -- φ 35.9% · Kh 9280.0 mD · So 22.9% · Sw 54.7% · Density 2.64 · FSP 35.5 · ROBERTSON RESEARCH -- --
21/28a- 5 ↳ Plug 16 1440.79 -- φ 36.3% · Kh 10000.0 mD · So 25.9% · Sw 53.4% · Density 2.65 · FSP 31.5 · ROBERTSON RESEARCH -- --
21/28a- 5 ↳ Plug 17 1441.094 -- φ 35.1% · Kh 10000.0 mD · So 27.2% · Sw 46.5% · Density 2.65 · FSP 33.5 · ROBERTSON RESEARCH -- --
21/28a- 5 ↳ Plug 18 1441.399 -- φ 35.2% · Kh 10000.0 mD · So 23.5% · Sw 54.3% · Density 2.65 · FSP 34.4 · ROBERTSON RESEARCH -- --
21/28a- 5 ↳ Plug 19 1441.765 -- φ 33.6% · Kh 8430.0 mD · Kv 7010.0 mD · So 21.8% · Sw 51.4% · Density 2.65 · FSP 34.0 · ROBERTSON RESEARCH -- --
21/28a- 5 ↳ Plug 20 1442.009 -- φ 36.5% · Kh 10000.0 mD · So 20.8% · Sw 53.3% · Density 2.65 · FSP 33.1 · ROBERTSON RESEARCH -- --
21/28a- 5 ↳ Plug 21 1442.314 -- φ 36.9% · Kh 10000.0 mD · So 24.4% · Sw 52.7% · Density 2.65 · FSP 36.1 · ROBERTSON RESEARCH -- --
21/28a- 5 ↳ Plug 22 1442.649 -- φ 38.8% · Kh 10000.0 mD · So 20.2% · Sw 53.1% · Density 2.65 · FSP 37.5 · ROBERTSON RESEARCH -- --
21/28a- 5 ↳ Plug 23 1442.923 -- φ 38.8% · Kh 10000.0 mD · So 13.1% · Sw 63.7% · Density 2.65 · FSP 37.4 · ROBERTSON RESEARCH -- --
21/28a- 5 ↳ Plug 24 1443.228 -- φ 38.6% · Kh 10000.0 mD · Kv 10000.0 mD · So 10.4% · Sw 69.8% · Density 2.65 · FSP 38.2 · ROBERTSON RESEARCH -- --
21/28a- 5 ↳ Plug 25 1443.594 -- φ 37.1% · Kh 10000.0 mD · So 11.5% · Sw 71.4% · Density 2.64 · FSP 38.4 · ROBERTSON RESEARCH -- --
21/28a- 5 ↳ Plug 26 1443.838 -- φ 35.0% · Kh 6540.0 mD · So 9.6% · Sw 70.3% · Density 2.66 · FSP 36.4 · ROBERTSON RESEARCH -- --
21/28a- 5 ↳ Plug 27 1444.142 -- φ 36.6% · Kh 9030.0 mD · So 5.6% · Sw 72.2% · Density 2.66 · FSP 35.2 · ROBERTSON RESEARCH -- --
21/28a- 5 ↳ Plug 28 1444.478 -- φ 37.5% · Kh 8990.0 mD · So 10.6% · Sw 66.2% · Density 2.66 · FSP 40.2 · ROBERTSON RESEARCH -- --
21/28a- 5 ↳ Plug 29 1444.752 -- φ 38.9% · Kh 10000.0 mD · Kv 10000.0 mD · So 16.7% · Sw 62.8% · Density 2.64 · FSP 39.1 · ROBERTSON RESEARCH -- --
21/28a- 5 ↳ Plug 30 1445.057 -- φ 39.5% · Kh 10000.0 mD · So 24.0% · Sw 53.1% · Density 2.65 · FSP 40.9 · ROBERTSON RESEARCH -- --
21/28a- 5 ↳ Plug 31 1445.392 -- φ 39.6% · Kh 10000.0 mD · So 27.5% · Sw 50.2% · Density 2.65 · FSP 40.7 · ROBERTSON RESEARCH -- --
21/28a- 5 ↳ Plug 32 1445.666 -- φ 39.3% · Kh 10000.0 mD · So 20.6% · Sw 57.7% · Density 2.65 · FSP 40.1 · ROBERTSON RESEARCH -- --
21/28a- 5 ↳ Plug 33 1445.971 -- φ 41.0% · Kh 10000.0 mD · So 24.6% · Sw 56.6% · Density 2.65 · FSP 40.6 · ROBERTSON RESEARCH -- --
21/28a- 5 ↳ Plug 34 1446.337 -- φ 37.5% · Kh 10000.0 mD · Kv 10000.0 mD · So 11.5% · Sw 67.9% · Density 2.65 · FSP 38.1 · ROBERTSON RESEARCH -- --
21/28a- 5 ↳ Plug 35 1446.581 -- φ 39.0% · Kh 10000.0 mD · So 0.0% · Sw 82.1% · Density 2.65 · FSP 33.9 · ROBERTSON RESEARCH -- --
21/28a- 5 ↳ Plug 36 1446.886 -- φ 37.7% · Kh 10000.0 mD · So 0.0% · Sw 81.6% · Density 2.65 · FSP 34.0 · ROBERTSON RESEARCH -- --
21/28a- 5 ↳ Plug 37 1447.221 -- φ 37.9% · Kh 10000.0 mD · So 0.0% · Sw 81.5% · Density 2.65 · FSP 33.4 · ROBERTSON RESEARCH -- --
21/28a- 5 ↳ Plug 38 1447.495 -- φ 37.1% · Kh 7230.0 mD · So 0.0% · Sw 79.2% · Density 2.65 · FSP 33.0 · ROBERTSON RESEARCH -- --
21/28a- 5 ↳ Plug 39 1447.8 -- φ 37.6% · Kh 10000.0 mD · Kv 8100.0 mD · So 0.0% · Sw 82.7% · Density 2.65 · FSP 32.2 · ROBERTSON RESEARCH -- --
21/28a- 5 ↳ Plug 40 1448.166 -- φ 21.4% · Kh 10.3 mD · Density 3.01 · ROBERTSON RESEARCH NFSP --
21/28a- 5 Core #3 1449.32 1463.95 φ 31.3% (n=11) · Kh 6299.0 mD (n=11) · Kv 7620.0 mD (n=2) · So 0.0% (n=10) · Sw 80.5% (n=10) · Density 2.70 (n=11) · FSP 31.0 (n=10) · ROBERTSON RESEARCH CLAYSTONE - NO ANALYSIS; NFSP --
21/28a- 5 ↳ Plug 65 1456.365 -- φ 27.8% · Kh 1440.0 mD · Density 2.70 · ROBERTSON RESEARCH NFSP --
21/28a- 5 ↳ Plug 66 1456.67 -- φ 2.1% · Kh 0.0 mD · So 0.0% · Sw 75.3% · Density 2.74 · FSP 4.6 · ROBERTSON RESEARCH -- --
21/28a- 5 ↳ Plug 67 1456.883 -- φ 23.4% · Kh 229.0 mD · So 0.0% · Sw 91.1% · Density 2.78 · FSP 27.2 · ROBERTSON RESEARCH -- --
21/28a- 5 ↳ Core Plug #3 1457.249 -- ROBERTSON RESEARCH CLAYSTONE - NO ANALYSIS --
21/28a- 5 ↳ Core Plug #3 1461.211 -- ROBERTSON RESEARCH CLAYSTONE - NO ANALYSIS --
21/28a- 5 ↳ Plug 82 1461.516 -- φ 35.0% · Kh 8640.0 mD · Kv 10000.0 mD · So 0.0% · Sw 75.5% · Density 2.66 · FSP 33.5 · ROBERTSON RESEARCH -- --
21/28a- 5 ↳ Plug 83 1461.821 -- φ 33.0% · Kh 6710.0 mD · So 0.0% · Sw 79.8% · Density 2.67 · FSP 31.7 · ROBERTSON RESEARCH -- --
21/28a- 5 ↳ Plug 84 1462.126 -- φ 38.6% · Kh 10000.0 mD · So 0.0% · Sw 80.1% · Density 2.68 · FSP 35.7 · ROBERTSON RESEARCH -- --
21/28a- 5 ↳ Plug 85 1462.43 -- φ 40.4% · Kh 10000.0 mD · So 0.0% · Sw 74.9% · Density 2.72 · FSP 34.5 · ROBERTSON RESEARCH -- --
21/28a- 5 ↳ Plug 86 1462.735 -- φ 36.8% · Kh 8530.0 mD · So 0.0% · Sw 86.2% · Density 2.69 · FSP 36.6 · ROBERTSON RESEARCH -- --
21/28a- 5 ↳ Plug 87 1463.04 -- φ 36.0% · Kh 7360.0 mD · Kv 5240.0 mD · So 0.0% · Sw 81.9% · Density 2.69 · FSP 36.4 · ROBERTSON RESEARCH -- --
21/28a- 5 ↳ Plug 88 1463.345 -- φ 36.7% · Kh 10000.0 mD · So 0.0% · Sw 81.0% · Density 2.70 · FSP 35.7 · ROBERTSON RESEARCH -- --
21/28a- 5 ↳ Plug 89 1463.65 -- φ 34.0% · Kh 6380.0 mD · So 0.0% · Sw 79.7% · Density 2.70 · FSP 34.5 · ROBERTSON RESEARCH -- --

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
21/28a- 5 0 -- -- --

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