Well Data Manager / Well Summary / 21/15a- 7

21/15a- 7

Decommissioned

Well Header

Well No
21/15a- 7
NSTA DEN No
6642
Well Name
--
Drill Seq No
7
Quadrant / Block
21 / 15 a
Surface Location
57.653738, 0.938274
Source Datum
ED50
Subsea Well
Unknown
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
1999-06-15
Source File
nsta_feature_service
Imported
2026-05-22 15:28

Wellbores (1)

21/15a- 7 Original
Abandoned Phase 3 View Log Interpreted Data Survey
Current Intent
Appraisal
Original Intent
Appraisal
Flow Class
Dry Hole
Dev Type
--
Convention
--
Primary Target
F
Well Seq
WB1
Datum Type
Rotary Table
Datum Elev (m)
25.000
Ground Elev (m)
--
Water Depth (m)
108.50
TD MD (m)
3744.000
TD TVDSS (m)
3537.700
TD Datum Depth (m)
25.000
TD Datum Type
Kelly Bushing
Spud Date
1999-06-15
TD Reached
1999-07-30
Completion Date
1999-08-11
Release Date
2003-08-11

Formation Tops (27)

Wellbore Formation Era MD (m) TVDSS (m) Provider
21/15a- 7 Horda Cenozoic 2297.000 2141.619 Lloyds Register
Stronsay Cenozoic 2297.000 2141.619 Lloyds Register
Balder Cenozoic 2475.000 2296.722 Lloyds Register
Balder Tuff Cenozoic 2475.000 2296.722 Lloyds Register
Moray Mesozoic 2475.000 2296.722 Lloyds Register
Sele Mesozoic 2516.000 2333.034 Lloyds Register
Forties Sandstone Mesozoic 2549.000 2362.407 Lloyds Register
Lista Mesozoic 2749.000 2546.044 Lloyds Register
Montrose Mesozoic 2749.000 2546.044 Lloyds Register
Balmoral Sandstone Cenozoic 2753.000 2549.849 Lloyds Register
Glamis Tuff 2852.000 2646.166 Lloyds Register
Andrew Sandstone Cenozoic 2929.000 2722.881 Lloyds Register
Maureen Mesozoic 2982.000 2775.876 Lloyds Register
Maureen Reworked Unit Mesozoic 2982.000 2775.876 Lloyds Register
Chalk Mesozoic 3047.000 2840.873 Lloyds Register
Ekofisk Mesozoic 3047.000 2840.873 Lloyds Register
Tor Mesozoic 3106.000 2899.871 Lloyds Register
Mackerel Mesozoic 3354.000 3147.852 Lloyds Register
Herring Mesozoic 3580.000 3373.822 Lloyds Register
Plenus Marl 3667.000 3460.764 Lloyds Register
Hidra Mesozoic 3671.000 3464.760 Lloyds Register
Kimmeridge Clay 3694.000 3487.739 Lloyds Register
Humber Mesozoic 3694.000 3487.739 Lloyds Register
Fulmar Mesozoic 3707.000 3500.727 Lloyds Register
Pentland Mesozoic 3719.000 3512.716 Lloyds Register
Rattray Volcanics Mesozoic 3719.000 3512.716 Lloyds Register
Fladen Mesozoic 3719.000 3512.716 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- 7 6 13 8 16 27 1 0 1 0 View

Hydrocarbon Occurrence (1)

Wellbore Category Code Formation / Litho Top MD (m) Base MD (m) Notes
21/15a- 7 Oil shows OS Forties Sandstone Member 2548.499856 -- 200 m thick

Rock Samples (1)

Wellbore Sample Top MD (m) Base MD (m) Key Lab Results Comments Notes
21/15a- 7 Cuttings 450.0 3744.0 -- -- wet samples - curated to fill gap

Wireline Log Inventory (Ingested Curves)

Wellbore Depth Start (m) Depth Stop (m) Typed Curves Auto-scaled Ingested
21/15a- 7 100.2791976928711 3745.07763671875 10 0 2026-08-06 17:23:37.769531+00 View Log

Source LAS Manifest (Best Curve per Type)

Open full Manifest browser
21/15a- 7
Curve Type Best Mnemonic Source Depth Start (m) Depth Stop (m) Samples
bulk_density RHOB CGG Digital Well Logs 3428.238 3731.514 1991
caliper CALI CGG Digital Well Logs 3428.238 3731.514 1991
comp_sonic DT CGG Digital Well Logs 3428.6952 3734.7144 2009
comp_sonic DT4P CGG Digital Well Logs 3393.7956 3730.5996 2211
comp_sonic DTCO CGG Digital Well Logs 3393.7956 3730.5996 2211
deep_resistivity RESD CGG Digital Well Logs 1065.4284 3745.0776 17555
deep_resistivity AT90 CGG Digital Well Logs 3429.1524 3745.0776 2074
density_correction DRHO CGG Digital Well Logs 3428.238 3731.514 1991
gamma_ray CGR CGG Digital Well Logs 3373.8312 3727.8564 2301
gamma_ray SGR CGG Digital Well Logs 3373.8312 3727.8564 2301
gamma_ray GR CGG Digital Well Logs 100.2792 3717.1884 23712
med_resistivity AT20 CGG Digital Well Logs 3429.1524 3745.0776 2074
med_resistivity AT30 CGG Digital Well Logs 3429.1524 3745.0776 2074
med_resistivity AT60 CGG Digital Well Logs 3429.1524 3745.0776 2074
med_resistivity RESM CGG Digital Well Logs 1065.4284 3745.0776 17555
neutron_por NPHI CGG Digital Well Logs 3370.1736 3727.3992 2345
pef PEF CGG Digital Well Logs 3429.1524 3731.514 1985
potassium POTA CGG Digital Well Logs 3373.8312 3727.8564 2301
shallow_resistivity AT10 CGG Digital Well Logs 3429.1524 3745.0776 2074
shallow_resistivity RESS CGG Digital Well Logs 1065.4284 3745.0776 17555
shear_sonic DTSM CGG Digital Well Logs 3393.7956 3726.7896 2186
shear_sonic DT4S CGG Digital Well Logs 3393.7956 3730.5996 2190
thorium THOR CGG Digital Well Logs 3373.8312 3727.8564 2301
uranium URAN CGG Digital Well Logs 3373.8312 3727.8564 2301

Survey Inventory (Deviation)

Open full Survey detail
Wellbore Stations Max MD (m) Max TVDSS (m) Survey File
21/15a- 7 139 3744.000 3537.692 D:\BigSpatial\nsta_raw\CGG_Deviation\21-15a-7 1439ah_CGG-Deviation.xlsx

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