3/11b- 7

Decommissioned

Well Header

Well No
3/11b- 7
NSTA DEN No
3856
Well Name
--
Drill Seq No
7
Quadrant / Block
3 / 11 b
Surface Location
60.644608, 1.017160
Source Datum
ED50
Subsea Well
No
Platform
--
Slot No
--
Operator
MIDLAND & SCOTTISH ENERGY LIMITED
Original Operator
--
Sub Area Operator
MIDLAND & SCOTTISH ENERGY LIMITED
Licence No
P330
Licence Type
Production
Spud Date
1989-09-01
Source File
nsta_feature_service
Imported
2026-05-22 15:28

Wellbores (2)

3/11b- 7 Original
Current Intent
Development
Original Intent
Development
Flow Class
Oil Well
Dev Type
Producer
Convention
--
Primary Target
WA
Well Seq
WB1
Datum Type
Kelly Bushing
Datum Elev (m)
24.994
Ground Elev (m)
--
Water Depth (m)
148.13
TD MD (m)
1915.058
TD TVDSS (m)
1722.425
TD Datum Depth (m)
24.994
TD Datum Type
Kelly Bushing
Spud Date
1989-09-01
TD Reached
1989-09-21
Completion Date
1989-09-23
Release Date
1993-09-23
3/11b- 7Z Sidetrack Z parent: 3/11b- 7
Current Intent
Development
Original Intent
Development
Flow Class
Oil Well
Dev Type
Producer
Convention
--
Primary Target
WA
Well Seq
WB2
Datum Type
Kelly Bushing
Datum Elev (m)
24.994
Ground Elev (m)
--
Water Depth (m)
148.13
TD MD (m)
1797.406
TD TVDSS (m)
1736.141
TD Datum Depth (m)
24.994
TD Datum Type
Kelly Bushing
Spud Date
1989-09-24
TD Reached
1989-09-30
Completion Date
1989-10-06
Release Date
1993-10-06

Formation Tops (19)

Wellbore Formation Era MD (m) TVDSS (m) Provider
3/11b- 7 Unknown 173.000 148.006 BGS LithoStrat Upper
Montrose Mesozoic 1164.000 1139.006 BGS LithoStrat Upper
Maureen Mesozoic 1461.000 1436.006 BGS LithoStrat Upper
Shetland E 1811.000 1786.006 BGS LithoStrat Upper
Kimmeridge Clay 1861.000 1836.006 BGS LithoStrat Upper
Heather Mesozoic 1867.000 1842.006 BGS LithoStrat Upper
Heather Mesozoic 1878.000 1853.006 BGS LithoStrat Upper
Emerald Sandstone 1880.000 1855.006 BGS LithoStrat Upper
Old Red Sandstone 1893.000 1868.006 BGS LithoStrat Upper
3/11b- 7Z Unknown 173.000 148.006 BGS LithoStrat Upper
Montrose Mesozoic 1164.000 1139.006 BGS LithoStrat Upper
Maureen Mesozoic 1433.000 1408.006 BGS LithoStrat Upper
Shetland F 1699.000 1674.006 BGS LithoStrat Upper
Shetland E 1700.000 1675.006 BGS LithoStrat Upper
Kimmeridge Clay 1753.000 1728.006 BGS LithoStrat Upper
Heather Mesozoic 1760.000 1735.006 BGS LithoStrat Upper
Heather Mesozoic 1768.000 1743.006 BGS LithoStrat Upper
Emerald Sandstone 1770.000 1745.006 BGS LithoStrat Upper
Old Red Sandstone 1779.000 1754.006 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
3/11b- 7 0 0 0 9 9 0 4 1 0 View
3/11b- 7Z 0 0 0 10 10 0 0 1 0 View

Hydrocarbon Occurrence (5)

Wellbore Category Code Formation / Litho Top MD (m) Base MD (m) Notes
3/11b- 7 Oil shows OS Shetland Group 1811.4264 -- 50 m thick
3/11b- 7 Oil O Emerald Formation 1880.0064 -- 12 m thick
3/11b- 7 Oil shows OS Old Red Sandstone Supergroup 1892.5032 -- 48 m thick
3/11b- 7Z Oil shows OS Shetland Group 1700.4792 -- 52 m thick
3/11b- 7Z Oil O Emerald Formation 1770.2784000000001 -- 9 m thick

Rock Samples (6)

Wellbore Sample Top MD (m) Base MD (m) Key Lab Results Comments Notes
3/11b- 7 Cuttings 495.91 1940.05 -- -- in as 3/11b-WS7 - duplicate sets (see S61562 & S130654)
3/11b- 7 Core #1 1898.9 1900.67 -- -- in as 3/11B-WS7 .
3/11b- 7 Core #2 1900.73 1911.71 -- -- .
3/11b- 7 Core #3 1911.71 1922.07 -- -- .
3/11b- 7 Core #4 1922.37 1933.16 -- -- .
3/11b- 7Z Cuttings 1188.72 1819.66 -- -- in as 3/11b-WS7z - duplicate set see S61563 & S130655

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
3/11b- 7 0 -- -- --
3/11b- 7Z 0 -- -- --

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