Well Data Manager / Well Summary / 20/07a- 4

20/07a- 4

Decommissioned

Well Header

Well No
20/07a- 4
NSTA DEN No
8594
Well Name
--
Drill Seq No
4
Quadrant / Block
20 / 7 a
Surface Location
57.826988, -0.676586
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
P272
Licence Type
Production
Spud Date
2003-03-09
Source File
nsta_feature_service
Imported
2026-05-22 15:28

Wellbores (1)

20/07a- 4 Original
Abandoned Phase 3 View Log Interpreted Data Survey
Current Intent
Exploration
Original Intent
Exploration
Flow Class
Dry Hole
Dev Type
--
Convention
--
Primary Target
D
Well Seq
WB1
Datum Type
Kelly Bushing
Datum Elev (m)
26.365
Ground Elev (m)
--
Water Depth (m)
114.30
TD MD (m)
2715.463
TD TVDSS (m)
2688.340
TD Datum Depth (m)
26.365
TD Datum Type
Rotary Table
Spud Date
2003-03-09
TD Reached
2003-03-27
Completion Date
2003-04-04
Release Date
2007-04-04

Formation Tops (16)

Wellbore Formation Era MD (m) TVDSS (m) Provider
20/07a- 4 Unknown 141.000 114.635 BGS LithoStrat Upper
Unknown 1111.000 1084.612 BGS LithoStrat Upper
Ekofisk Mesozoic 1337.000 1310.601 BGS LithoStrat Upper
Tor Mesozoic 1385.000 1358.599 BGS LithoStrat Upper
Hod Mesozoic 1508.000 1481.596 BGS LithoStrat Upper
Herring Mesozoic 1829.000 1802.495 BGS LithoStrat Upper
Plenus Marl 1906.000 1879.455 BGS LithoStrat Upper
Hidra Mesozoic 1922.000 1895.446 BGS LithoStrat Upper
Rodby Mesozoic 1987.000 1960.405 BGS LithoStrat Upper
Sola Formation 2021.000 1994.379 BGS LithoStrat Upper
Valhall Mesozoic 2211.000 2184.222 BGS LithoStrat Upper
Kimmeridge Clay 2521.000 2493.799 BGS LithoStrat Upper
Ettrick Silt Unit 2576.000 2548.673 BGS LithoStrat Upper
Ettrick Sands 2589.000 2561.640 BGS LithoStrat Upper
Buzzard Sandstone Member 2614.000 2586.574 BGS LithoStrat Upper
Kimmeridge Clay 2649.000 2621.474 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
20/07a- 4 0 0 0 16 16 1 0 1 0 View

Hydrocarbon Occurrence (0)

No hydrocarbon shows or DSTs recorded for this well.

Rock Samples (1)

Wellbore Sample Top MD (m) Base MD (m) Key Lab Results Comments Notes
20/07a- 4 Cuttings 1127.76 2715.77 -- -- --

Wireline Log Inventory (Ingested Curves)

Wellbore Depth Start (m) Depth Stop (m) Typed Curves Auto-scaled Ingested
20/07a- 4 197.6627960205078 2698.241943359375 2 0 2026-08-06 09:53:47.624923+00 View Log

Source LAS Manifest (Best Curve per Type)

Open full Manifest browser
20/07a- 4
Curve Type Best Mnemonic Source Depth Start (m) Depth Stop (m) Samples
comp_sonic DTC CGG Digital Well Logs 1481.328 2687.574 7916
gamma_ray GRC CGG Digital Well Logs 197.6628 2698.242 16409
shear_sonic DTS CGG Digital Well Logs 1481.328 2686.9644000000003 7538

Survey Inventory (Deviation)

Open full Survey detail
Wellbore Stations Max MD (m) Max TVDSS (m) Survey File
20/07a- 4 74 2715.463 2687.742 D:\BigSpatial\nsta_raw\CGG_Deviation\20-7a-4 59549s_CGG-Deviation.xlsx

Related Documents

Open Document Search
Searching related documents...