Well Data Manager / Well Summary / 21/07b- 4

21/07b- 4

Decommissioned

Well Header

Well No
21/07b- 4
NSTA DEN No
23773
Well Name
--
Drill Seq No
4
Quadrant / Block
21 / 7 b
Surface Location
57.815883, 0.202082
Source Datum
ED50
Subsea Well
Unknown
Platform
--
Slot No
--
Operator
PREMIER OIL UK LIMITED
Original Operator
--
Sub Area Operator
PREMIER OIL UK LIMITED
Licence No
P1784
Licence Type
Production
Spud Date
2012-11-20
Source File
nsta_feature_service
Imported
2026-05-22 15:28

Wellbores (1)

21/07b- 4 Original
Abandoned Phase 3 Interpreted Data Survey
Current Intent
Exploration
Original Intent
Exploration
Flow Class
Dry Hole
Dev Type
--
Convention
--
Primary Target
K
Well Seq
WB1
Datum Type
Rotary Table
Datum Elev (m)
23.165
Ground Elev (m)
--
Water Depth (m)
128.93
TD MD (m)
1851.965
TD TVDSS (m)
1828.800
TD Datum Depth (m)
23.165
TD Datum Type
Kelly Bushing
Spud Date
2012-11-20
TD Reached
2012-12-04
Completion Date
2012-12-11
Release Date
2015-12-11

Formation Tops (10)

Wellbore Formation Era MD (m) TVDSS (m) Provider
21/07b- 4 Horda Cenozoic 981.000 957.835 Lloyds Register
Stronsay Cenozoic 981.000 957.835 Lloyds Register
Moray Mesozoic 1401.000 1377.835 Lloyds Register
Balder Cenozoic 1401.000 1377.835 Lloyds Register
Sele Mesozoic 1435.000 1411.835 Lloyds Register
Cromarty Sandstone Cenozoic 1450.000 1426.835 Lloyds Register
Forties Sandstone Mesozoic 1517.000 1493.835 Lloyds Register
Montrose Mesozoic 1743.000 1719.835 Lloyds Register
Lista Mesozoic 1743.000 1719.835 Lloyds Register
Balmoral Sandstone Cenozoic 1756.000 1732.835 Lloyds Register

Lithology Intervals

21/07b- 4 Curve: SANDCOUNT 52 intervals  ·  MD 259.994 – 1836.420 m G:/NSTA_BigFiles/NSTA_Packages/Lloyds_Register/NSTA Centr...
Sandstone (51)
Limestone (1)

Interpreted Data Inventory (LR / WellStrat)

Open Interpreted Data Log
Wellbore Groups Formations Members Strat Intervals Tops HC Occ Core Cuttings DSTs
21/07b- 4 3 4 3 11 10 1 0 0 0 View

Hydrocarbon Occurrence (0)

No hydrocarbon shows or DSTs recorded for this well.

Rock Samples (0)

No cuttings, core, or plug samples recorded for this well.

Wireline Log Inventory (Ingested Curves)

No wireline log curves ingested for this well.

Source LAS Manifest (Best Curve per Type)

Open full Manifest browser

No scanned LAS source files matched to this well.

Survey Inventory (Deviation)

Open full Survey detail
Wellbore Stations Max MD (m) Max TVDSS (m) Survey File
21/07b- 4 0 -- -- --

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