Well Data Manager / Well Summary / 21/28a- 3

21/28a- 3

Decommissioned

Well Header

Well No
21/28a- 3
NSTA DEN No
3145
Well Name
--
Drill Seq No
3
Quadrant / Block
21 / 28 a
Surface Location
57.140861, 0.576867
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
1987-05-23
Source File
nsta_feature_service
Imported
2026-05-22 15:28

Wellbores (1)

21/28a- 3 Original
Abandoned Phase 3 View Log Interpreted Data Survey
Current Intent
Appraisal
Original Intent
Appraisal
Flow Class
Oil Well
Dev Type
--
Convention
--
Primary Target
AB
Well Seq
WB1
Datum Type
Kelly Bushing
Datum Elev (m)
25.908
Ground Elev (m)
--
Water Depth (m)
88.39
TD MD (m)
1661.160
TD TVDSS (m)
1635.252
TD Datum Depth (m)
25.908
TD Datum Type
Kelly Bushing
Spud Date
1987-05-23
TD Reached
1987-06-06
Completion Date
1987-06-11
Release Date
1991-06-11

Formation Tops (9)

Wellbore Formation Era MD (m) TVDSS (m) Provider
21/28a- 3 Horda Cenozoic 1266.000 1240.050 Lloyds Register
Stronsay Cenozoic 1266.000 1240.050 Lloyds Register
Upper Tay Sandstone 1475.000 1449.022 Lloyds Register
Lower Tay Sandstone 1490.000 1464.020 Lloyds Register
Montrose Mesozoic 1496.000 1470.019 Lloyds Register
Lista Mesozoic 1496.000 1470.019 Lloyds Register
Maureen Mesozoic 1606.000 1580.013 Lloyds Register
Ekofisk Mesozoic 1631.000 1605.012 Lloyds Register
Chalk Mesozoic 1631.000 1605.012 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
21/28a- 3 3 4 2 14 9 1 9 1 0 View

Hydrocarbon Occurrence (2)

Wellbore Category Code Formation / Litho Top MD (m) Base MD (m) Notes
21/28a- 3 Oil shows OS Strathtay Formation 1391.1072000000001 -- 95 m thick
21/28a- 3 Oil shows OS Strathtay Formation 1485.9 -- 10 m thick

Rock Samples (56)

Wellbore Sample Top MD (m) Base MD (m) Key Lab Results Comments Notes
21/28a- 3 Cuttings 201.17 1661.16 -- -- .
21/28a- 3 Core #1 1388.36 1392.42 -- -- .
21/28a- 3 Core #2 1393.33 1401.38 ROBERTSON RESEARCH NO ANALYSIS .
21/28a- 3 ↳ Core Plug #2 1393.85 -- ROBERTSON RESEARCH NO ANALYSIS --
21/28a- 3 Core #3 1402.08 1408.88 φ 35.9% (n=2) · Kh 5290.0 mD (n=2) · So 34.3% (n=2) · Sw 28.4% (n=2) · Density 2.65 (n=2) · ROBERTSON RESEARCH NO ANALYSIS .
21/28a- 3 ↳ Core Plug #3 1402.08 -- ROBERTSON RESEARCH NO ANALYSIS --
21/28a- 3 ↳ Plug 02 1403.513 -- φ 36.9% · Kh 7500.0 mD · So 31.9% · Sw 27.5% · Density 2.64 · ROBERTSON RESEARCH -- --
21/28a- 3 ↳ Plug 03 1403.695 -- φ 34.9% · Kh 3080.0 mD · So 36.7% · Sw 29.3% · Density 2.65 · ROBERTSON RESEARCH -- --
21/28a- 3 Core #4 1410.61 1424.15 ROBERTSON RESEARCH NO ANALYSIS .
21/28a- 3 ↳ Core Plug #4 1410.614 -- ROBERTSON RESEARCH NO ANALYSIS --
21/28a- 3 ↳ Core Plug #4 1424.026 -- ROBERTSON RESEARCH NO ANALYSIS --
21/28a- 3 ↳ Core Plug #4 1424.026 -- ROBERTSON RESEARCH NO ANALYSIS --
21/28a- 3 Core #5 1424.03 1437.86 -- -- .
21/28a- 3 Core #6 1440.79 1448.35 ROBERTSON RESEARCH NO ANALYSIS .
21/28a- 3 ↳ Core Plug #6 1440.79 -- ROBERTSON RESEARCH NO ANALYSIS --
21/28a- 3 ↳ Core Plug #6 1440.79 -- ROBERTSON RESEARCH NO ANALYSIS --
21/28a- 3 Core #7 1454.51 1467.25 φ 33.4% (n=2) · Kh 3525.0 mD (n=2) · Density 2.73 (n=2) · ROBERTSON RESEARCH -- .
21/28a- 3 ↳ Plug 04 1461.821 -- φ 33.6% · Kh 3200.0 mD · Density 2.73 · ROBERTSON RESEARCH -- --
21/28a- 3 ↳ Plug 05 1462.126 -- φ 33.2% · Kh 3850.0 mD · Density 2.72 · ROBERTSON RESEARCH -- --
21/28a- 3 Core #8 1467.31 1480.72 φ 29.7% (n=18) · Kh 5831.4 mD (n=18) · Kv 5940.0 mD (n=4) · Density 2.67 (n=18) · ROBERTSON RESEARCH -- .
21/28a- 3 ↳ Plug 06 1475.384 -- φ 35.4% · Kh 7970.0 mD · Density 2.73 · ROBERTSON RESEARCH -- --
21/28a- 3 ↳ Plug 07 1475.537 -- φ 6.1% · Kh 0.8 mD · Density 2.74 · ROBERTSON RESEARCH -- --
21/28a- 3 ↳ Plug 08 1475.842 -- φ 3.1% · Kh 0.0 mD · Kv 0.1 mD · Density 2.71 · ROBERTSON RESEARCH -- --
21/28a- 3 ↳ Plug 09 1476.146 -- φ 3.1% · Kh 0.1 mD · Density 2.69 · ROBERTSON RESEARCH -- --
21/28a- 3 ↳ Plug 10 1476.451 -- φ 7.4% · Kh 4.1 mD · Density 2.68 · ROBERTSON RESEARCH -- --
21/28a- 3 ↳ Plug 11 1476.756 -- φ 38.1% · Kh 10000.0 mD · Kv 10000.0 mD · Density 2.66 · ROBERTSON RESEARCH -- --
21/28a- 3 ↳ Plug 12 1477.061 -- φ 35.7% · Kh 7080.0 mD · Density 2.65 · ROBERTSON RESEARCH -- --
21/28a- 3 ↳ Plug 13 1477.366 -- φ 36.8% · Kh 10000.0 mD · Density 2.65 · ROBERTSON RESEARCH -- --
21/28a- 3 ↳ Plug 14 1477.67 -- φ 39.6% · Kh 10000.0 mD · Density 2.65 · ROBERTSON RESEARCH -- --
21/28a- 3 ↳ Plug 15 1477.975 -- φ 37.5% · Kh 10000.0 mD · Density 2.65 · ROBERTSON RESEARCH -- --
21/28a- 3 ↳ Plug 16 1478.28 -- φ 38.1% · Kh 9630.0 mD · Density 2.65 · ROBERTSON RESEARCH -- --
21/28a- 3 ↳ Plug 17 1478.585 -- φ 36.0% · Kh 6750.0 mD · Kv 7480.0 mD · Density 2.65 · ROBERTSON RESEARCH -- --
21/28a- 3 ↳ Plug 18 1478.89 -- φ 37.9% · Kh 6130.0 mD · Density 2.65 · ROBERTSON RESEARCH -- --
21/28a- 3 ↳ Plug 19 1479.194 -- φ 36.7% · Kh 6700.0 mD · Density 2.65 · ROBERTSON RESEARCH -- --
21/28a- 3 ↳ Plug 20 1479.499 -- φ 37.2% · Kh 7600.0 mD · Density 2.65 · ROBERTSON RESEARCH -- --
21/28a- 3 ↳ Plug 21 1479.804 -- φ 36.2% · Kh 5940.0 mD · Kv 6280.0 mD · Density 2.65 · ROBERTSON RESEARCH -- --
21/28a- 3 ↳ Plug 22 1480.139 -- φ 35.4% · Kh 3720.0 mD · Density 2.67 · ROBERTSON RESEARCH -- --
21/28a- 3 ↳ Plug 23 1480.414 -- φ 33.8% · Kh 3440.0 mD · Density 2.69 · ROBERTSON RESEARCH -- --
21/28a- 3 Core #9 1480.72 1497.79 φ 32.3% (n=17) · Kh 5215.3 mD (n=17) · Kv 5037.5 mD (n=4) · Density 2.70 (n=17) · ROBERTSON RESEARCH -- .
21/28a- 3 ↳ Plug 24 1491.082 -- φ 33.2% · Kh 6260.0 mD · Density 2.68 · ROBERTSON RESEARCH -- --
21/28a- 3 ↳ Plug 25 1491.417 -- φ 30.5% · Kh 3700.0 mD · Kv 3280.0 mD · Density 2.73 · ROBERTSON RESEARCH -- --
21/28a- 3 ↳ Plug 26 1491.691 -- φ 28.8% · Kh 2750.0 mD · Density 2.74 · ROBERTSON RESEARCH -- --
21/28a- 3 ↳ Plug 27 1492.026 -- φ 29.6% · Kh 3540.0 mD · Density 2.72 · ROBERTSON RESEARCH -- --
21/28a- 3 ↳ Plug 28 1492.301 -- φ 30.9% · Kh 3850.0 mD · Density 2.73 · ROBERTSON RESEARCH -- --
21/28a- 3 ↳ Plug 29 1492.606 -- φ 30.5% · Kh 2960.0 mD · Density 2.73 · ROBERTSON RESEARCH -- --
21/28a- 3 ↳ Plug 30 1492.88 -- φ 30.8% · Kh 3300.0 mD · Kv 2680.0 mD · Density 2.73 · ROBERTSON RESEARCH -- --
21/28a- 3 ↳ Plug 31 1493.276 -- φ 30.6% · Kh 3600.0 mD · Density 2.73 · ROBERTSON RESEARCH -- --
21/28a- 3 ↳ Plug 32 1493.52 -- φ 30.9% · Kh 3970.0 mD · Density 2.73 · ROBERTSON RESEARCH -- --
21/28a- 3 ↳ Plug 33 1493.764 -- φ 30.1% · Kh 4020.0 mD · Kv 4190.0 mD · Density 2.72 · ROBERTSON RESEARCH -- --
21/28a- 3 ↳ Plug 34 1494.221 -- φ 30.9% · Kh 3930.0 mD · Density 2.74 · ROBERTSON RESEARCH -- --
21/28a- 3 ↳ Plug 35 1494.465 -- φ 33.0% · Kh 6630.0 mD · Density 2.69 · ROBERTSON RESEARCH -- --
21/28a- 3 ↳ Plug 36 1494.678 -- φ 35.3% · Kh 9840.0 mD · Density 2.68 · ROBERTSON RESEARCH -- --
21/28a- 3 ↳ Plug 37 1495.074 -- φ 38.2% · Kh 10000.0 mD · Kv 10000.0 mD · Density 2.64 · ROBERTSON RESEARCH -- --
21/28a- 3 ↳ Plug 38 1495.562 -- φ 32.0% · Kh 4640.0 mD · Density 2.64 · ROBERTSON RESEARCH -- --
21/28a- 3 ↳ Plug 39 1495.654 -- φ 37.6% · Kh 10000.0 mD · Density 2.65 · ROBERTSON RESEARCH -- --
21/28a- 3 ↳ Plug 40 1495.958 -- φ 36.8% · Kh 5670.0 mD · Density 2.65 · ROBERTSON RESEARCH -- --

Wireline Log Inventory (Ingested Curves)

Wellbore Depth Start (m) Depth Stop (m) Typed Curves Auto-scaled Ingested
21/28a- 3 76.35240173339844 1660.5504150390625 11 0 2026-08-06 17:29:09.775875+00 View Log

Source LAS Manifest (Best Curve per Type)

Open full Manifest browser
21/28a- 3
Curve Type Best Mnemonic Source Depth Start (m) Depth Stop (m) Samples
bulk_density ZDEN CGG Digital Well Logs 967.4352 1660.2456000000002 4547
caliper CAL CGG Digital Well Logs 967.1304 1647.9012 4468
caliper CALI CGG Digital Well Logs 967.74 1660.5504 4547
comp_sonic AC CGG Digital Well Logs 967.1304 1651.4064 4491
deep_resistivity RILD CGG Digital Well Logs 967.8924000000001 1658.112 4530
density_correction ZCOR CGG Digital Well Logs 968.0448 1660.5504 4545
gamma_ray GR CGG Digital Well Logs 76.3524 1653.8448 10352
gamma_ray GRD CGG Digital Well Logs 960.2724000000001 1653.6924000000001 4551
med_resistivity RILM CGG Digital Well Logs 967.8924000000001 1657.9596000000001 4529
micro_resistivity RMLL CGG Digital Well Logs 968.1972000000001 1647.5964000000001 4459
neutron_por CNC CGG Digital Well Logs 967.4352 1654.9116000000001 4512
pef PE CGG Digital Well Logs 967.5876000000001 1660.3980000000001 4547
sp SP CGG Digital Well Logs 967.1304 1660.5504 4539

Survey Inventory (Deviation)

Open full Survey detail
Wellbore Stations Max MD (m) Max TVDSS (m) Survey File
21/28a- 3 56 1661.160 1635.169 D:\BigSpatial\nsta_raw\CGG_Deviation\21-28a-3 7066l_CGG-Deviation.xlsx

Related Documents

Open Document Search
Searching related documents...