Well Data Manager / Well Summary / 21/15a- 6

21/15a- 6

Decommissioned

Well Header

Well No
21/15a- 6
NSTA DEN No
2964
Well Name
--
Drill Seq No
6
Quadrant / Block
21 / 15 a
Surface Location
57.566828, 0.902977
Source Datum
ED50
Subsea Well
No
Platform
--
Slot No
--
Operator
CNOOC PETROLEUM EUROPE LIMITED
Original Operator
--
Sub Area Operator
CNOOC PETROLEUM EUROPE LIMITED
Licence No
P120
Licence Type
Production
Spud Date
1986-05-31
Source File
nsta_feature_service
Imported
2026-05-22 15:28

Wellbores (1)

21/15a- 6 Original
Abandoned Phase 3 View Log Interpreted Data Survey
Current Intent
Exploration
Original Intent
Exploration
Flow Class
Oil Show
Dev Type
--
Convention
--
Primary Target
F
Well Seq
WB1
Datum Type
Kelly Bushing
Datum Elev (m)
21.946
Ground Elev (m)
--
Water Depth (m)
102.41
TD MD (m)
4447.030
TD TVDSS (m)
4403.141
TD Datum Depth (m)
21.946
TD Datum Type
Kelly Bushing
Spud Date
1986-05-31
TD Reached
1986-08-11
Completion Date
1986-08-17
Release Date
1990-08-17

Formation Tops (23)

Wellbore Formation Era MD (m) TVDSS (m) Provider
21/15a- 6 Balder Cenozoic 2292.000 2269.985 Lloyds Register
Moray Mesozoic 2292.000 2269.985 Lloyds Register
Balder Tuff Cenozoic 2298.000 2275.985 Lloyds Register
Sele Mesozoic 2329.000 2306.984 Lloyds Register
Forties Sandstone Mesozoic 2377.000 2354.983 Lloyds Register
Lista Mesozoic 2579.000 2556.976 Lloyds Register
Montrose Mesozoic 2579.000 2556.976 Lloyds Register
Balmoral Sandstone Cenozoic 2590.000 2567.976 Lloyds Register
Glamis Tuff 2674.000 2651.973 Lloyds Register
Maureen Sandstone Mesozoic 2766.000 2743.971 Lloyds Register
Maureen Mesozoic 2766.000 2743.971 Lloyds Register
Ekofisk Mesozoic 2852.000 2829.970 Lloyds Register
Chalk Mesozoic 2852.000 2829.970 Lloyds Register
Upper Cretaceous Chalk Mesozoic 3017.000 2994.963 Lloyds Register
Cromer Knoll Mesozoic 3702.000 3679.906 Lloyds Register
Rodby Mesozoic 3702.000 3679.906 Lloyds Register
Sola 3758.000 3735.902 Lloyds Register
Valhall Mesozoic 3820.000 3797.899 Lloyds Register
Kimmeridge Clay 4145.000 4122.843 Lloyds Register
Humber Mesozoic 4145.000 4122.843 Lloyds Register
Fulmar Mesozoic 4281.000 4258.774 Lloyds Register
Fladen Mesozoic 4420.000 4397.667 Lloyds Register
Pentland Mesozoic 4420.000 4397.667 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
21/15a- 6 6 12 5 18 23 1 4 1 0 View

Hydrocarbon Occurrence (1)

Wellbore Category Code Formation / Litho Top MD (m) Base MD (m) Notes
21/15a- 6 Oil shows OS Sele Formation 2330.5008000000003 -- 46 m thick

Rock Samples (14)

Wellbore Sample Top MD (m) Base MD (m) Key Lab Results Comments Notes
21/15a- 6 Cuttings 627.89 4447.03 -- -- .
21/15a- 6 Core #1 4286.71 4305.15 φ 11.7% (n=3) · Kh 0.2 mD (n=3) · Density 2.65 (n=3) · GEOCHEM -- .
21/15a- 6 ↳ Plug 01 4287.713 -- φ 13.6% · Kh 0.2 mD · Density 2.65 · GEOCHEM -- --
21/15a- 6 ↳ Plug 02 4292.376 -- φ 12.4% · Kh 0.2 mD · Density 2.65 · GEOCHEM -- --
21/15a- 6 ↳ Plug 03 4299.448 -- φ 9.1% · Kh 0.3 mD · Density 2.65 · GEOCHEM -- --
21/15a- 6 Core #2 4305.0 4324.26 φ 22.9% (n=2) · Kh 16.9 mD (n=2) · Density 2.64 (n=2) · GEOCHEM -- .
21/15a- 6 ↳ Plug 04 4319.869 -- φ 24.8% · Kh 33.0 mD · Density 2.65 · GEOCHEM -- --
21/15a- 6 ↳ Plug 05 4322.277 -- φ 20.9% · Kh 0.8 mD · Density 2.63 · GEOCHEM -- --
21/15a- 6 Core #3 4323.89 4342.79 φ 12.8% (n=2) · Kh 0.2 mD (n=2) · Density 2.71 (n=2) · GEOCHEM -- .
21/15a- 6 ↳ Plug 06 4324.594 -- φ 13.9% · Kh 0.0 mD · Density 2.73 · GEOCHEM -- --
21/15a- 6 ↳ Plug 07 4342.394 -- φ 11.6% · Kh 0.3 mD · Density 2.68 · GEOCHEM -- --
21/15a- 6 Core #4 4342.79 4358.34 φ 11.1% (n=2) · Kh 0.1 mD (n=2) · Density 2.66 (n=2) · GEOCHEM -- .
21/15a- 6 ↳ Plug 08 4348.368 -- φ 12.5% · Kh 0.1 mD · Density 2.65 · GEOCHEM -- --
21/15a- 6 ↳ Plug 09 4354.007 -- φ 9.6% · Kh 0.0 mD · Density 2.67 · GEOCHEM -- --

Wireline Log Inventory (Ingested Curves)

Wellbore Depth Start (m) Depth Stop (m) Typed Curves Auto-scaled Ingested
21/15a- 6 117.04319763183594 4454.95703125 9 0 2026-08-06 10:15:01.813666+00 View Log

Source LAS Manifest (Best Curve per Type)

Open full Manifest browser
21/15a- 6
Curve Type Best Mnemonic Source Depth Start (m) Depth Stop (m) Samples
bulk_density RHOB CGG Digital Well Logs 2031.1872 4454.4996 15902
caliper CALI CGG Digital Well Logs 2031.0348000000001 4454.4996 15903
comp_sonic DT CGG Digital Well Logs 615.0864 4444.8984 25005
deep_resistivity ILD CGG Digital Well Logs 614.9340000000001 4454.0424 25131
density_correction DRHO CGG Digital Well Logs 2031.0348000000001 4454.4996 15903
gamma_ray GRD CGG Digital Well Logs 1979.0664000000002 4448.7084 16206
gamma_ray GR CGG Digital Well Logs 117.04320000000001 4445.965200000001 28406
med_resistivity ILM CGG Digital Well Logs 615.2388000000001 4454.9568 25140
neutron_por NPHI CGG Digital Well Logs 2030.1204 4448.403600000001 15869
pef PEF CGG Digital Well Logs 2031.3396 4454.3472 15900

Survey Inventory (Deviation)

Open full Survey detail
Wellbore Stations Max MD (m) Max TVDSS (m) Survey File
21/15a- 6 286 4447.030 4424.682 D:\BigSpatial\nsta_raw\CGG_Deviation\21-15a-6 7059t-CGG-Deviation.xlsx

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