Well Data Manager / Well Summary / 9/18a- 21

9/18a- 21

Decommissioned

Well Header

Well No
9/18a- 21
NSTA DEN No
3887
Well Name
--
Drill Seq No
21
Quadrant / Block
9 / 18 a
Surface Location
59.368844, 1.548850
Source Datum
ED50
Subsea Well
No
Platform
--
Slot No
--
Operator
NEO NEXT+ ENERGY E&P NORTH SEA UK LIMITED
Original Operator
--
Sub Area Operator
NEO NEXT+ ENERGY E&P NORTH SEA UK LIMITED
Licence No
P103
Licence Type
Production
Spud Date
1989-11-15
Source File
nsta_feature_service
Imported
2026-05-22 15:28

Wellbores (1)

9/18a- 21 Original
Abandoned Phase 3 View Log Interpreted Data Survey
Current Intent
Exploration
Original Intent
Exploration
Flow Class
Oil Well
Dev Type
--
Convention
--
Primary Target
W
Well Seq
WB1
Datum Type
Kelly Bushing
Datum Elev (m)
26.822
Ground Elev (m)
--
Water Depth (m)
114.30
TD MD (m)
1954.378
TD TVDSS (m)
1980.590
TD Datum Depth (m)
26.822
TD Datum Type
Kelly Bushing
Spud Date
1989-11-15
TD Reached
1989-11-29
Completion Date
1989-12-31
Release Date
1993-12-31

Formation Tops (6)

Wellbore Formation Era MD (m) TVDSS (m) Provider
9/18a- 21 Upper Mousa Cenozoic 960.000 933.044 Ternan
Odin Sst Cenozoic 1728.000 1700.794 Ternan
Odin Sst Cenozoic 1728.000 1700.794 Ternan
Odin Sst Cenozoic 1817.000 1789.780 Ternan
Odin Sst Cenozoic 1817.000 1789.780 Ternan
Hermod Sst 1893.000 1865.771 Ternan

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
9/18a- 21 0 0 0 19 6 0 3 0 0 View

Hydrocarbon Occurrence (2)

Wellbore Category Code Formation / Litho Top MD (m) Base MD (m) Notes
9/18a- 21 Gas shows GS Frigg Sandstone Member 1700.784 -- 4 m thick
9/18a- 21 Oil shows OS BUSS 1728.2160000000001 -- 20 m thick

Rock Samples (39)

Wellbore Sample Top MD (m) Base MD (m) Key Lab Results Comments Notes
9/18a- 21 Core #1 1691.94 1701.09 φ 36.2% (n=1) · Kh 629.0 mD (n=1) · So 44.0% (n=1) · Sw 9.4% (n=1) · Density 2.78 (n=1) · THE ROBERTSON GROUP PLC NVP; SHALE NO ANALYSIS | SST, F, SL ARG, P.IND, LAM W/CMN PYR, SL MIC. .
9/18a- 21 ↳ Core Plug #1 1691.945 -- THE ROBERTSON GROUP PLC SHALE NO ANALYSIS --
9/18a- 21 ↳ Core Plug #1 1695.298 -- THE ROBERTSON GROUP PLC SHALE NO ANALYSIS --
9/18a- 21 ↳ Plug 13 1695.755 -- φ 36.2% · Kh 629.0 mD · So 44.0% · Sw 9.4% · Density 2.78 · THE ROBERTSON GROUP PLC NVP | SST, F, SL ARG, P.IND, LAM W/CMN PYR, SL MIC. --
9/18a- 21 ↳ Core Plug #1 1695.907 -- THE ROBERTSON GROUP PLC SHALE NO ANALYSIS --
9/18a- 21 ↳ Core Plug #1 1700.784 -- THE ROBERTSON GROUP PLC SHALE NO ANALYSIS --
9/18a- 21 ↳ Plug 31 1701.089 -- THE ROBERTSON GROUP PLC SHALE NO ANALYSIS --
9/18a- 21 Core #2 1701.09 1710.23 φ 35.6% (n=11) · Kh 4230.9 mD (n=11) · Kv 2836.7 mD (n=3) · So 46.2% (n=3) · Sw 13.1% (n=3) · Density 2.65 (n=11) · THE ROBERTSON GROUP PLC SHALE NO ANALYSIS .
9/18a- 21 ↳ Plug 32 1701.531 -- φ 36.9% · Kh 5340.0 mD · Kv 1060.0 mD · So 43.0% · Sw 11.9% · Density 2.64 · THE ROBERTSON GROUP PLC -- --
9/18a- 21 ↳ Plug 33 1701.912 -- φ 38.6% · Kh 5260.0 mD · Density 2.64 · THE ROBERTSON GROUP PLC -- --
9/18a- 21 ↳ Plug 34 1702.186 -- φ 33.1% · Kh 1380.0 mD · Density 2.65 · THE ROBERTSON GROUP PLC -- --
9/18a- 21 ↳ Plug 35 1702.399 -- φ 33.6% · Kh 2660.0 mD · Density 2.64 · THE ROBERTSON GROUP PLC -- --
9/18a- 21 ↳ Plug 36 1702.704 -- φ 38.4% · Kh 7580.0 mD · Density 2.64 · THE ROBERTSON GROUP PLC -- --
9/18a- 21 ↳ Plug 37 1702.948 -- φ 35.8% · Kh 3990.0 mD · Kv 3680.0 mD · So 45.5% · Sw 16.5% · Density 2.65 · THE ROBERTSON GROUP PLC -- --
9/18a- 21 ↳ Plug 38 1703.375 -- φ 35.7% · Kh 3850.0 mD · Density 2.65 · THE ROBERTSON GROUP PLC -- --
9/18a- 21 ↳ Plug 39 1703.542 -- φ 34.5% · Kh 4360.0 mD · Density 2.65 · THE ROBERTSON GROUP PLC -- --
9/18a- 21 ↳ Plug 40 1703.862 -- φ 35.9% · Kh 3640.0 mD · Density 2.65 · THE ROBERTSON GROUP PLC -- --
9/18a- 21 ↳ Plug 41 1704.137 -- THE ROBERTSON GROUP PLC SHALE NO ANALYSIS --
9/18a- 21 ↳ Plug 42 1704.564 -- φ 35.9% · Kh 5580.0 mD · Kv 3770.0 mD · So 50.0% · Sw 10.8% · Density 2.64 · THE ROBERTSON GROUP PLC -- --
9/18a- 21 ↳ Plug 43 1704.777 -- φ 33.6% · Kh 2900.0 mD · Density 2.66 · THE ROBERTSON GROUP PLC -- --
9/18a- 21 ↳ Core Plug #2 1705.051 -- THE ROBERTSON GROUP PLC SHALE NO ANALYSIS --
9/18a- 21 ↳ Core Plug #2 1709.928 -- THE ROBERTSON GROUP PLC SHALE NO ANALYSIS --
9/18a- 21 Core #3 1743.76 1760.46 φ 33.0% (n=6) · Kh 2863.3 mD (n=6) · Kv 3535.0 mD (n=2) · So 57.9% (n=4) · Sw 15.4% (n=4) · Density 2.65 (n=6) · THE ROBERTSON GROUP PLC FRACTURES NO ANALYSIS; NVP; SHALE NO ANALYSIS .
9/18a- 21 ↳ Plug 61 1743.761 -- THE ROBERTSON GROUP PLC FRACTURES NO ANALYSIS --
9/18a- 21 ↳ Plug 62 1744.203 -- φ 32.8% · Kh 2110.0 mD · So 61.5% · Sw 19.5% · Density 2.64 · THE ROBERTSON GROUP PLC -- --
9/18a- 21 ↳ Core Plug #3 1744.37 -- THE ROBERTSON GROUP PLC FRACTURES NO ANALYSIS --
9/18a- 21 ↳ Core Plug #3 1744.98 -- THE ROBERTSON GROUP PLC FRACTURES NO ANALYSIS --
9/18a- 21 ↳ Plug 66 1745.285 -- THE ROBERTSON GROUP PLC SHALE NO ANALYSIS --
9/18a- 21 ↳ Plug 67 1745.59 -- THE ROBERTSON GROUP PLC FRACTURES NO ANALYSIS --
9/18a- 21 ↳ Plug 68 1746.001 -- φ 33.2% · Kh 3040.0 mD · Kv 4510.0 mD · So 52.5% · Sw 21.0% · Density 2.66 · THE ROBERTSON GROUP PLC -- --
9/18a- 21 ↳ Plug 69 1746.291 -- φ 35.3% · Kh 4850.0 mD · Density 2.64 · THE ROBERTSON GROUP PLC -- --
9/18a- 21 ↳ Plug 70 1746.504 -- THE ROBERTSON GROUP PLC SHALE NO ANALYSIS --
9/18a- 21 ↳ Plug 71 1746.992 -- φ 34.3% · Kh 2240.0 mD · Density 2.65 · THE ROBERTSON GROUP PLC -- --
9/18a- 21 ↳ Plug 72 1747.175 -- φ 32.5% · Kh 3290.0 mD · So 48.2% · Sw 13.5% · Density 2.65 · THE ROBERTSON GROUP PLC NVP --
9/18a- 21 ↳ Core Plug #3 1747.418 -- THE ROBERTSON GROUP PLC SHALE NO ANALYSIS --
9/18a- 21 ↳ Core Plug #3 1747.723 -- THE ROBERTSON GROUP PLC SHALE NO ANALYSIS --
9/18a- 21 ↳ Plug 75 1748.135 -- φ 30.1% · Kh 1650.0 mD · Kv 2560.0 mD · So 69.5% · Sw 7.7% · Density 2.68 · THE ROBERTSON GROUP PLC -- --
9/18a- 21 ↳ Core Plug #3 1748.333 -- THE ROBERTSON GROUP PLC SHALE NO ANALYSIS --
9/18a- 21 ↳ Core Plug #3 1760.22 -- THE ROBERTSON GROUP PLC SHALE NO ANALYSIS --

Wireline Log Inventory (Ingested Curves)

Wellbore Depth Start (m) Depth Stop (m) Typed Curves Auto-scaled Ingested
9/18a- 21 136.09320068359375 1981.482177734375 10 0 2026-08-06 15:53:08.652885+00 View Log

Source LAS Manifest (Best Curve per Type)

Open full Manifest browser
9/18a- 21
Curve Type Best Mnemonic Source Depth Start (m) Depth Stop (m) Samples
bulk_density DEN OGA Batch Unzipped 675.132 1983.1812 8584
bulk_density CDEN Energective CorrectedLOGS 675.7350468000001 1979.5011972 8556
bulk_density RHOB CGG Digital Well Logs 669.6456000000001 1979.6760000000002 8597
cable_tension TENS OGA Batch Unzipped 135.9408 1978.7616 12093
caliper CLD Energective CorrectedLOGS 676.64941632 1979.5011972 8550
caliper CALI CGG Digital Well Logs 676.9608000000001 1979.3712 8547
comp_sonic DTC Energective CorrectedLOGS 676.8018163200001 1968.6809191200002 8478
comp_sonic DT CGG Digital Well Logs 669.9504000000001 1967.6364 8516
deep_resistivity ILD Energective CorrectedLOGS 675.1254468000001 1975.99602768 8537
deep_resistivity RES_DEP OGA Batch Unzipped 675.132 1983.1812 8584
density_correction DENC OGA Batch Unzipped 675.132 1983.1812 8584
density_correction CDRH Energective CorrectedLOGS 675.1254468000001 1979.5011972 8559
density_correction DRHO CGG Digital Well Logs 669.1884 1979.8284 8601
gamma_ray GRI Energective CorrectedLOGS 136.0932 1974.4720581600002 12064
gamma_ray CGR CGG Digital Well Logs 653.6436 1970.6844 8643
gamma_ray SGR CGG Digital Well Logs 653.6436 1970.6844 8643
gamma_ray GR CGG Digital Well Logs 135.9408 1970.2272 12037
med_resistivity RES_MED OGA Batch Unzipped 675.1320000000001 1978.7616 8555
med_resistivity ILM Energective CorrectedLOGS 675.1254468000001 1978.7391972 8555
neutron_por NPHI CGG Digital Well Logs 669.1884 1975.104 8570
neutron_por CNEU Energective CorrectedLOGS 675.5826468000001 1979.8059667200002 8559
neutron_por NEU OGA Batch Unzipped 675.132 1983.1812 8584
pef CPEF Energective CorrectedLOGS 675.7350468000001 1979.5011972 8556
pef PEF CGG Digital Well Logs 669.3408000000001 1979.9808 8601
potassium POTA OGA Batch Unzipped 653.6436 1975.104 8672
sp SP Energective CorrectedLOGS 684.7265248799999 1981.4823667200003 8510
thorium THOR CGG Digital Well Logs 653.6436 1967.4840000000002 8622
tvdss SS Energective CorrectedLOGS 135.9408 1981.4823667200003 12111
uranium URAN CGG Digital Well Logs 653.6436 1970.6844 8643

Survey Inventory (Deviation)

Open full Survey detail
Wellbore Stations Max MD (m) Max TVDSS (m) Survey File
9/18a- 21 64 1981.200 1953.964 D:\BigSpatial\nsta_raw\CGG_Deviation\9-18a-21 10093ac_CGG-Deviation.xlsx

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