Well Data Manager / Well Summary / 3/28a- 4

3/28a- 4

Decommissioned

Well Header

Well No
3/28a- 4
NSTA DEN No
6013
Well Name
--
Drill Seq No
4
Quadrant / Block
3 / 28 a
Surface Location
60.010160, 1.416632
Source Datum
ED50
Subsea Well
Unknown
Platform
--
Slot No
--
Operator
ENQUEST HEATHER LIMITED
Original Operator
--
Sub Area Operator
ENQUEST HEATHER LIMITED
Licence No
P234
Licence Type
Production
Spud Date
1996-12-23
Source File
nsta_feature_service
Imported
2026-05-22 15:28

Wellbores (2)

3/28a- 4 Original
Abandoned Phase 3 View Log Interpreted Data Survey
Current Intent
Appraisal
Original Intent
Appraisal
Flow Class
Gas and Oil Well
Dev Type
--
Convention
--
Primary Target
D
Well Seq
WB1
Datum Type
Kelly Bushing
Datum Elev (m)
23.470
Ground Elev (m)
--
Water Depth (m)
94.18
TD MD (m)
1393.546
TD TVDSS (m)
1370.076
TD Datum Depth (m)
23.470
TD Datum Type
Kelly Bushing
Spud Date
1996-12-23
TD Reached
1997-01-17
Completion Date
1997-01-20
Release Date
2001-01-20
3/28a- 4Z Sidetrack Z parent: 3/28a- 4
Abandoned Phase 3 View Log Interpreted Data Survey
Current Intent
Appraisal
Original Intent
Appraisal
Flow Class
Gas and Oil Well
Dev Type
--
Convention
--
Primary Target
D
Well Seq
WB2
Datum Type
Kelly Bushing
Datum Elev (m)
23.470
Ground Elev (m)
--
Water Depth (m)
94.18
TD MD (m)
1129.284
TD TVDSS (m)
--
TD Datum Depth (m)
23.470
TD Datum Type
Kelly Bushing
Spud Date
1997-01-20
TD Reached
1997-03-07
Completion Date
1997-03-07
Release Date
2001-03-07

Formation Tops (17)

Wellbore Formation Era MD (m) TVDSS (m) Provider
3/28a- 4 Nordland Cenozoic 118.000 94.528 BGS LithoStrat Upper
Nordland Cenozoic 769.000 745.520 BGS LithoStrat Upper
Orkney Formation 996.000 972.511 BGS LithoStrat Upper
Balder Cenozoic 1013.000 989.510 BGS LithoStrat Upper
Sele Mesozoic 1048.000 1024.509 BGS LithoStrat Upper
Hermod Sand Member Cenozoic 1051.000 1027.508 BGS LithoStrat Upper
Sele Mesozoic 1078.000 1054.503 BGS LithoStrat Upper
Teal Fm 1091.000 1067.500 BGS LithoStrat Upper
Heimdal Equivalent Sands Member 1293.000 1269.463 BGS LithoStrat Upper
Lista Mesozoic 1307.000 1283.461 BGS LithoStrat Upper
3/28a- 4Z Nordland Cenozoic 757.000 733.466 BGS LithoStrat Upper
Lothian Formation 763.000 739.465 BGS LithoStrat Upper
Lothian Formation 792.000 768.463 BGS LithoStrat Upper
Orkney Formation 1002.000 977.804 BGS LithoStrat Upper
Balder Cenozoic 1013.000 988.792 BGS LithoStrat Upper
Sele Mesozoic 1049.000 1024.775 BGS LithoStrat Upper
Hermod Sand Member Cenozoic 1051.000 1026.775 BGS LithoStrat Upper

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
3/28a- 4 0 0 0 10 10 0 25 1 0 View
3/28a- 4Z 0 0 0 7 7 0 0 1 0 View

Hydrocarbon Occurrence (6)

Wellbore Category Code Formation / Litho Top MD (m) Base MD (m) Notes
3/28a- 4 Oil shows OS Balder Formation 1012.8504 -- 35 m thick
3/28a- 4 Oil shows OS Sele Formation 1048.2072 -- 2 m thick
3/28a- 4 Oil shows OS Hermod Sandstone Member 1050.6456 -- 28 m thick
3/28a- 4 Oil shows OS Sele Formation 1078.3824 -- 13 m thick
3/28a- 4 Oil shows OS Teal Sandstone Member 1091.184 -- 202 m thick
3/28a- 4Z Oil O Hermod Sandstone Member 1051.2552 -- 78 m thick

Rock Samples (49)

Wellbore Sample Top MD (m) Base MD (m) Key Lab Results Comments Notes
3/28a- 4 Cuttings 774.19 1392.94 -- -- set C
3/28a- 4 Core #1 1050.65 1052.47 -- -- came in as 3/28a-D(04)
3/28a- 4 Core #2 1056.13 1058.27 -- -- --
3/28a- 4 Core #3 1063.75 1064.36 -- -- --
3/28a- 4 Core #4 1066.19 1066.34 -- -- --
3/28a- 4 Core #5 1073.81 1075.64 φ 37.0% (n=3) · Kh 1413.3 mD (n=3) · Density 0.00 (n=3) · WEATHERFORD POOR QUALITY SOURCE DATA --
3/28a- 4 ↳ Plug 01 1073.871 -- φ 39.0% · Kh 2413.0 mD · Density 0.00 · WEATHERFORD POOR QUALITY SOURCE DATA --
3/28a- 4 ↳ Plug 02 1074.176 -- φ 35.0% · Kh 1509.0 mD · Density 0.00 · WEATHERFORD POOR QUALITY SOURCE DATA --
3/28a- 4 ↳ Plug 07 1075.578 -- φ 37.0% · Kh 318.0 mD · Density 0.00 · WEATHERFORD POOR QUALITY SOURCE DATA --
3/28a- 4 Core #6 1078.38 1081.13 φ 32.3% (n=3) · Kh 222.7 mD (n=3) · Density 0.00 (n=3) · WEATHERFORD POOR QUALITY SOURCE DATA --
3/28a- 4 ↳ Plug 09 1078.626 -- φ 30.0% · Kh 115.0 mD · Density 0.00 · WEATHERFORD POOR QUALITY SOURCE DATA --
3/28a- 4 ↳ Plug 10 1078.992 -- φ 32.3% · Kh 174.0 mD · Density 0.00 · WEATHERFORD POOR QUALITY SOURCE DATA --
3/28a- 4 ↳ Plug 14 1080.15 -- φ 34.6% · Kh 379.0 mD · Density 0.00 · WEATHERFORD POOR QUALITY SOURCE DATA --
3/28a- 4 Core #7 1081.43 1083.11 φ 35.3% (n=2) · Kh 389.5 mD (n=2) · Density 0.00 (n=2) · WEATHERFORD POOR QUALITY SOURCE DATA --
3/28a- 4 ↳ Plug 19 1081.735 -- φ 35.4% · Kh 238.0 mD · Density 0.00 · WEATHERFORD POOR QUALITY SOURCE DATA --
3/28a- 4 ↳ Plug 22 1082.65 -- φ 35.2% · Kh 541.0 mD · Density 0.00 · WEATHERFORD POOR QUALITY SOURCE DATA --
3/28a- 4 Core #8 1084.17 1088.44 φ 34.1% (n=3) · Kh 387.0 mD (n=3) · Density 0.00 (n=3) · WEATHERFORD POOR QUALITY SOURCE DATA --
3/28a- 4 ↳ Plug 25 1084.478 -- φ 33.9% · Kh 188.0 mD · Density 0.00 · WEATHERFORD POOR QUALITY SOURCE DATA --
3/28a- 4 ↳ Plug 27 1085.088 -- φ 35.5% · Kh 748.0 mD · Density 0.00 · WEATHERFORD POOR QUALITY SOURCE DATA --
3/28a- 4 ↳ Plug 29 1085.698 -- φ 33.0% · Kh 225.0 mD · Density 0.00 · WEATHERFORD POOR QUALITY SOURCE DATA --
3/28a- 4 Core #9 1088.75 1090.5 φ 35.7% (n=1) · Kh 912.0 mD (n=1) · Density 0.00 (n=1) · WEATHERFORD POOR QUALITY SOURCE DATA --
3/28a- 4 ↳ Plug 42 1089.904 -- φ 35.7% · Kh 912.0 mD · Density 0.00 · WEATHERFORD POOR QUALITY SOURCE DATA --
3/28a- 4 Core #10 1094.84 1096.75 φ 38.3% (n=1) · Kh 1071.0 mD (n=1) · Density 0.00 (n=1) · WEATHERFORD POOR QUALITY SOURCE DATA --
3/28a- 4 ↳ Plug 48 1096.183 -- φ 38.3% · Kh 1071.0 mD · Density 0.00 · WEATHERFORD POOR QUALITY SOURCE DATA --
3/28a- 4 Core #11 1099.41 1102.61 φ 37.6% (n=1) · Kh 540.0 mD (n=1) · Density 0.00 (n=1) · WEATHERFORD POOR QUALITY SOURCE DATA --
3/28a- 4 ↳ Plug 52 1099.718 -- φ 37.6% · Kh 540.0 mD · Density 0.00 · WEATHERFORD POOR QUALITY SOURCE DATA --
3/28a- 4 Core #12 1102.61 1104.14 -- -- --
3/28a- 4 Core #13 1104.6 1108.25 φ 35.2% (n=2) · Kh 930.0 mD (n=2) · Density 0.00 (n=2) · WEATHERFORD POOR QUALITY SOURCE DATA --
3/28a- 4 ↳ Plug 67 1104.687 -- φ 34.4% · Kh 872.0 mD · Density 0.00 · WEATHERFORD POOR QUALITY SOURCE DATA --
3/28a- 4 ↳ Plug 71 1105.814 -- φ 36.0% · Kh 988.0 mD · Density 0.00 · WEATHERFORD POOR QUALITY SOURCE DATA --
3/28a- 4 Core #14 1109.17 1111.91 φ 35.4% (n=3) · Kh 1248.0 mD (n=3) · Density 0.00 (n=3) · WEATHERFORD POOR QUALITY SOURCE DATA --
3/28a- 4 ↳ Plug 83 1110.386 -- φ 38.2% · Kh 1984.0 mD · Density 0.00 · WEATHERFORD POOR QUALITY SOURCE DATA --
3/28a- 4 ↳ Plug 85 1111.118 -- φ 36.6% · Kh 1567.0 mD · Density 0.00 · WEATHERFORD POOR QUALITY SOURCE DATA --
3/28a- 4 ↳ Plug 87 1111.606 -- φ 31.3% · Kh 193.0 mD · Density 0.00 · WEATHERFORD POOR QUALITY SOURCE DATA --
3/28a- 4 Core #15 1112.22 1116.48 φ 36.9% (n=1) · Kh 1507.0 mD (n=1) · Density 0.00 (n=1) · WEATHERFORD POOR QUALITY SOURCE DATA --
3/28a- 4 ↳ Plug 95 1114.349 -- φ 36.9% · Kh 1507.0 mD · Density 0.00 · WEATHERFORD POOR QUALITY SOURCE DATA --
3/28a- 4 Core #16 1116.79 1121.36 -- -- --
3/28a- 4 Core #17 1121.36 1121.66 -- -- --
3/28a- 4 Core #18 1124.41 1125.17 -- -- --
3/28a- 4 Core #19 1127.46 1127.76 -- -- --
3/28a- 4 Core #20 1130.5 1130.7 -- -- --
3/28a- 4 Core #21 1133.55 1134.16 -- -- --
3/28a- 4 Core #22 1136.6 1138.28 -- -- --
3/28a- 4 Core #23 1139.34 1141.78 φ 32.8% (n=2) · Kh 493.0 mD (n=2) · Density 2.67 (n=2) · WEATHERFORD POOR QUALITY SOURCE DATA --
3/28a- 4 ↳ Plug 21 1139.409 -- φ 34.6% · Kh 846.0 mD · Density 2.66 · WEATHERFORD POOR QUALITY SOURCE DATA --
3/28a- 4 ↳ Plug 25 1140.239 -- φ 30.9% · Kh 140.0 mD · Density 2.67 · WEATHERFORD POOR QUALITY SOURCE DATA --
3/28a- 4 Core #24 1142.39 1143.61 -- -- --
3/28a- 4 Core #25 1145.44 1147.88 -- -- --
3/28a- 4Z Cuttings 766.57 1129.28 -- -- --

Wireline Log Inventory (Ingested Curves)

Wellbore Depth Start (m) Depth Stop (m) Typed Curves Auto-scaled Ingested
3/28a- 4 60.50279998779297 1379.8135986328125 11 0 2026-08-06 18:25:50.786254+00 View Log
3/28a- 4Z 756.5136108398438 1131.8702392578125 6 0 2026-08-06 18:25:53.188236+00 View Log

Source LAS Manifest (Best Curve per Type)

Open full Manifest browser
3/28a- 4
Curve Type Best Mnemonic Source Depth Start (m) Depth Stop (m) Samples
bulk_density ZDEN CGG Digital Well Logs 757.7328 1374.1908 4046
bulk_density CDEN Energective CorrectedLOGS 758.0291265600001 1376.0035980000002 4056
caliper CLD Energective CorrectedLOGS 752.3903875200001 1376.0035980000002 4093
caliper CALI CGG Digital Well Logs 757.7328 1374.3432 4047
caliper CALS CGG Digital Well Logs 757.7328 1385.6208000000001 4119
comp_sonic DTC Energective CorrectedLOGS 757.1147265600001 1359.69701136 3955
comp_sonic DT CGG Digital Well Logs 757.5804 1359.5604 3949
deep_resistivity ILD Energective CorrectedLOGS 757.5719265600001 1379.50876752 4082
deep_resistivity RD CGG Digital Well Logs 757.7328 1378.458 4072
deep_resistivity AT90 Energective CorrectedLOGS 758.48629608 1330.8937466400002 3757
density_correction ZCOR CGG Digital Well Logs 757.7328 1374.1908 4046
density_correction DENC OGA Batch Unzipped 762.6096 1373.5812 4010
density_correction CDRH Energective CorrectedLOGS 758.0291265600001 1375.851198 4055
gamma_ray GRD CGG Digital Well Logs 739.902 1368.2472 4122
gamma_ray GRI Energective CorrectedLOGS 60.5028 1368.53608944 8584
gamma_ray GR CGG Digital Well Logs 60.5028 1368.2472 8582
med_resistivity AT30 Energective CorrectedLOGS 758.48629608 1330.13174664 3752
med_resistivity AT20 Energective CorrectedLOGS 758.48629608 1330.8937466400002 3757
med_resistivity AT60 Energective CorrectedLOGS 758.48629608 1330.4365466400002 3754
micro_resistivity RMLL CGG Digital Well Logs 757.7328 1385.6208000000001 4119
micro_resistivity MLL Energective CorrectedLOGS 757.1147265600001 1379.81356752 4087
neutron_por CNC CGG Digital Well Logs 757.7328 1370.2284 4020
neutron_por CNEU Energective CorrectedLOGS 747.51364848 1370.36485896 4088
pef PE CGG Digital Well Logs 757.7328 1374.1908 4046
pef CPEF Energective CorrectedLOGS 758.0291265600001 1376.0035980000002 4056
potassium K CGG Digital Well Logs 725.4240000000001 1344.0156000000002 4060
shallow_resistivity AT10 Energective CorrectedLOGS 758.48629608 1333.9417161600002 3777
shallow_resistivity RS CGG Digital Well Logs 757.7328 1378.458 4072
shallow_resistivity LLS Energective CorrectedLOGS 757.7243265600001 1379.50876752 4081
thorium TH CGG Digital Well Logs 725.4240000000001 1344.0156000000002 4060
tvdss SS Energective CorrectedLOGS 60.3504 1379.81356752 8659
3/28a- 4Z
Curve Type Best Mnemonic Source Depth Start (m) Depth Stop (m) Samples
bulk_density ZDEN CGG Digital Well Logs 1074.1152 1129.284 363
bulk_density LDL Energective CorrectedLOGS 1077.61649856 1131.870228 357
caliper CLD Energective CorrectedLOGS 1077.61649856 1130.34625848 347
caliper CAL CGG Digital Well Logs 1074.1152 1129.284 363
density_correction ZCOR CGG Digital Well Logs 1074.1152 1129.284 363
density_correction DRH Energective CorrectedLOGS 1077.61649856 1130.19385848 346
gamma_ray GR CGG Digital Well Logs 756.5136 1122.7308 2404
gamma_ray GRD Energective CorrectedLOGS 1022.90556912 1123.1835499200001 659
gamma_ray GRLW Energective CorrectedLOGS 756.5136 1126.3838889600001 2392
neutron_por CNC CGG Digital Well Logs 1074.1152 1123.95 328
neutron_por CNL Energective CorrectedLOGS 1077.61649856 1124.85991944 311
neutron_por CNLC Energective CorrectedLOGS 1077.61649856 1124.85991944 311
pef PE CGG Digital Well Logs 1074.1152 1129.284 363
pef PEF Energective CorrectedLOGS 1077.61649856 1130.80345848 350
rate_of_penetration ROPS CGG Digital Well Logs 768.096 1129.284 2346
tvdss SS Energective CorrectedLOGS 756.2088 1132.0226280000002 2467

Survey Inventory (Deviation)

Open full Survey detail
Wellbore Stations Max MD (m) Max TVDSS (m) Survey File
3/28a- 4 19 1393.546 1369.997 D:\BigSpatial\nsta_raw\CGG_Deviation\3-28a-4 25013q-CGG_Deviation.xlsx
3/28a- 4Z 33 1129.284 1105.051 D:\BigSpatial\nsta_raw\CGG_Deviation\3-28a-4Z 25213k-CGG_Deviation.xlsx

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