21/01a- 9

Present

Well Header

Well No
21/01a- 9
NSTA DEN No
1212
Well Name
--
Drill Seq No
9
Quadrant / Block
21 / 1 a
Surface Location
57.902954, 0.030583
Source Datum
ED50
Subsea Well
Yes
Platform
--
Slot No
--
Operator
NEO NEXT + ENERGY RESOURCES UK LIMITED
Original Operator
--
Sub Area Operator
NEO NEXT + ENERGY RESOURCES UK LIMITED
Licence No
P241
Licence Type
Production
Spud Date
1978-05-14
Source File
nsta_feature_service
Imported
2026-05-22 15:28

Wellbores (6)

21/01a- 9 Original
Current Intent
Development
Original Intent
Development
Flow Class
Oil Well
Dev Type
Producer
Convention
--
Primary Target
A
Well Seq
WB1
Datum Type
Kelly Bushing
Datum Elev (m)
24.000
Ground Elev (m)
--
Water Depth (m)
117.65
TD MD (m)
3404.999
TD TVDSS (m)
3226.452
TD Datum Depth (m)
26.000
TD Datum Type
Rotary Table
Spud Date
1978-05-14
TD Reached
1978-08-10
Completion Date
1979-12-10
Release Date
1983-12-10
21/01a- 9V Sidetrack V parent: 21/01a- 9X
Abandoned Phase 2 Survey
Current Intent
Development
Original Intent
Development
Flow Class
Oil Well
Dev Type
Producer
Convention
--
Primary Target
BC
Well Seq
WB6
Datum Type
Rotary Table
Datum Elev (m)
24.000
Ground Elev (m)
--
Water Depth (m)
117.65
TD MD (m)
3034.267
TD TVDSS (m)
2836.352
TD Datum Depth (m)
24.506
TD Datum Type
Rotary Table
Spud Date
2002-05-03
TD Reached
2002-05-11
Completion Date
2002-05-19
Release Date
2006-05-19
21/01a- 9W Sidetrack W parent: 21/01a- 9X
Abandoned Phase 2 Survey
Current Intent
Development
Original Intent
Development
Flow Class
Oil Well
Dev Type
Producer
Convention
--
Primary Target
B3
Well Seq
WB5
Datum Type
Rotary Table
Datum Elev (m)
24.000
Ground Elev (m)
--
Water Depth (m)
117.65
TD MD (m)
3008.971
TD TVDSS (m)
2823.961
TD Datum Depth (m)
24.506
TD Datum Type
Rotary Table
Spud Date
2001-07-03
TD Reached
2001-07-11
Completion Date
2001-07-21
Release Date
2005-07-21
21/01a- 9X Sidetrack X parent: 21/01a- 9Z
Abandoned Phase 2 Survey
Current Intent
Development
Original Intent
Development
Flow Class
Unknown
Dev Type
Producer
Convention
--
Primary Target
B3
Well Seq
WB4
Datum Type
Rotary Table
Datum Elev (m)
24.000
Ground Elev (m)
--
Water Depth (m)
117.65
TD MD (m)
2982.457
TD TVDSS (m)
2802.212
TD Datum Depth (m)
24.506
TD Datum Type
Rotary Table
Spud Date
2001-06-25
TD Reached
2001-06-30
Completion Date
2001-07-02
Release Date
2005-07-02
21/01a- 9Y Sidetrack Y parent: 21/01a- 9Z
Abandoned Phase 2 Survey
Current Intent
Development
Original Intent
Development
Flow Class
Unknown
Dev Type
Producer
Convention
--
Primary Target
B3
Well Seq
WB3
Datum Type
Rotary Table
Datum Elev (m)
24.000
Ground Elev (m)
--
Water Depth (m)
117.65
TD MD (m)
2946.799
TD TVDSS (m)
2778.163
TD Datum Depth (m)
24.506
TD Datum Type
Rotary Table
Spud Date
2001-05-29
TD Reached
2001-06-02
Completion Date
2001-06-22
Release Date
2005-06-22
21/01a- 9Z Sidetrack Z parent: 21/01a- 9
Abandoned Phase 2 Survey
Current Intent
Development
Original Intent
Development
Flow Class
Unknown
Dev Type
Producer
Convention
--
Primary Target
B3
Well Seq
WB2
Datum Type
Rotary Table
Datum Elev (m)
24.000
Ground Elev (m)
--
Water Depth (m)
117.65
TD MD (m)
3020.558
TD TVDSS (m)
2817.069
TD Datum Depth (m)
24.506
TD Datum Type
Rotary Table
Spud Date
2001-05-08
TD Reached
2001-05-20
Completion Date
2001-05-29
Release Date
2005-05-29

Formation Tops (8)

Wellbore Formation Era MD (m) TVDSS (m) Provider
21/01a- 9 Ekofisk Mesozoic 2274.000 2250.000 Lloyds Register
Chalk Mesozoic 2274.000 2250.000 Lloyds Register
Upper Cretaceous Chalk Mesozoic 2321.000 2297.000 Lloyds Register
Cromer Knoll Mesozoic 2768.000 2744.000 Lloyds Register
Rodby Mesozoic 2768.000 2744.000 Lloyds Register
Sola 2775.000 2751.000 Lloyds Register
Old Red Palaeozoic 2826.000 2802.000 Lloyds Register
Old Red Sandstone 2826.000 2802.000 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
21/01a- 9 3 5 0 13 8 0 2 1 0 View
21/01a- 9V 0 0 0 0 0 0 0 0 0
21/01a- 9W 0 0 0 0 0 0 0 0 0
21/01a- 9X 0 0 0 0 0 0 0 0 0
21/01a- 9Y 0 0 0 0 0 0 0 0 0
21/01a- 9Z 0 0 0 0 0 0 0 0 0

Hydrocarbon Occurrence (2)

Wellbore Category Code Formation / Litho Top MD (m) Base MD (m) Notes
21/01a- 9 Oil shows OS Flounder Formation 2620.127856 -- 58 m thick
21/01a- 9 Oil shows OS Old Red Sandstone Supergroup 2826.1391280000003 -- 579 m thick

Rock Samples (58)

Wellbore Sample Top MD (m) Base MD (m) Key Lab Results Comments Notes
21/01a- 9 Cuttings 979.99 3249.96 -- -- .
21/01a- 9 Core #1 2830.95 2834.15 φ 7.9% (n=3) · Kh 0.3 mD (n=3) · So 24.9% (n=1) · Sw 22.4% (n=1) · Density 2.79 (n=2) · FSP 8.2 (n=1) · CORE LABORATORIES INSUFFICIENT SAMPLE; MUDSTONE; NO PLUG POSSIBLE | SS BRN VFG CALC CMT MICA; SS GY VFG CALC CMT MICA .
21/01a- 9 ↳ Plug 01 2831.0 -- So 24.9% · Sw 22.4% · FSP 8.2 · CORE LABORATORIES NO PLUG POSSIBLE --
21/01a- 9 ↳ Plug 02 2831.25 -- CORE LABORATORIES INSUFFICIENT SAMPLE --
21/01a- 9 ↳ Plug 03 2831.5 -- φ 10.4% · Kh 0.6 mD · Density 2.78 · CORE LABORATORIES SS GY VFG CALC CMT MICA --
21/01a- 9 ↳ Plug 04 2831.75 -- φ 7.6% · Kh 0.2 mD · CORE LABORATORIES SS GY VFG CALC CMT MICA --
21/01a- 9 ↳ Plug 05 2832.0 -- CORE LABORATORIES INSUFFICIENT SAMPLE --
21/01a- 9 ↳ Plug 06 2832.25 -- CORE LABORATORIES MUDSTONE --
21/01a- 9 ↳ Plug 07 2832.5 -- CORE LABORATORIES MUDSTONE --
21/01a- 9 ↳ Plug 08 2832.75 -- φ 5.7% · Kh 0.1 mD · Density 2.80 · CORE LABORATORIES SS BRN VFG CALC CMT MICA --
21/01a- 9 ↳ Plug 09 2833.0 -- CORE LABORATORIES MUDSTONE --
21/01a- 9 ↳ Plug 10 2833.25 -- CORE LABORATORIES MUDSTONE --
21/01a- 9 ↳ Plug 11 2833.5 -- CORE LABORATORIES MUDSTONE --
21/01a- 9 ↳ Plug 12 2833.75 -- CORE LABORATORIES MUDSTONE --
21/01a- 9 ↳ Plug 13 2834.0 -- CORE LABORATORIES MUDSTONE --
21/01a- 9 Core #2 2835.95 2846.37 φ 7.2% (n=32) · Kh 0.3 mD (n=26) · Kv 0.0 mD (n=3) · So 26.6% (n=4) · Sw 36.4% (n=4) · Density 2.71 (n=7) · FSP 4.3 (n=4) · CORE LABORATORIES INSUFFICIENT SAMPLE; MUDSTONE; NO PLUG POSSIBLE; RUBBLE | SS BRN VF-FG CALC CMT MICA; SS GY F-MG CALC CMT; SS GY FG CALC CMT; SS GY FG W/PBLS CALC CMT; SS GY VF-FG CALC CMT; SS GY VF-FG CALC CMT MICA; SS GY VFG CALC CMT MICA .
21/01a- 9 ↳ Plug 14 2836.0 -- φ 4.9% · Kh 0.0 mD · CORE LABORATORIES SS GY VFG CALC CMT MICA --
21/01a- 9 ↳ Plug 15 2836.25 -- φ 5.9% · Kh 0.0 mD · CORE LABORATORIES SS GY VFG CALC CMT MICA --
21/01a- 9 ↳ Plug 16 2836.5 -- CORE LABORATORIES INSUFFICIENT SAMPLE --
21/01a- 9 ↳ Plug 17 2836.75 -- φ 9.4% · Kh 0.8 mD · CORE LABORATORIES SS GY VFG CALC CMT MICA --
21/01a- 9 ↳ Plug 18 2837.0 -- φ 6.3% · Kh 0.1 mD · Kv 0.0 mD · So 20.3% · Sw 27.0% · Density 2.72 · FSP 3.1 · CORE LABORATORIES SS GY VFG CALC CMT MICA --
21/01a- 9 ↳ Plug 19 2837.25 -- φ 5.2% · Kh 0.1 mD · CORE LABORATORIES SS GY VFG CALC CMT MICA --
21/01a- 9 ↳ Plug 20 2837.5 -- φ 5.4% · Kh 1.8 mD · CORE LABORATORIES SS GY VF-FG CALC CMT MICA --
21/01a- 9 ↳ Plug 21 2837.75 -- φ 8.1% · CORE LABORATORIES SS GY VF-FG CALC CMT MICA --
21/01a- 9 ↳ Plug 22 2838.0 -- φ 7.8% · Kh 0.1 mD · CORE LABORATORIES SS GY VF-FG CALC CMT MICA --
21/01a- 9 ↳ Plug 23 2838.25 -- φ 8.5% · Kh 0.3 mD · CORE LABORATORIES SS GY VF-FG CALC CMT MICA --
21/01a- 9 ↳ Plug 24 2838.5 -- φ 8.6% · Kh 0.1 mD · CORE LABORATORIES SS GY VF-FG CALC CMT MICA --
21/01a- 9 ↳ Plug 25 2838.75 -- φ 6.2% · Kh 0.2 mD · CORE LABORATORIES SS GY VF-FG CALC CMT MICA --
21/01a- 9 ↳ Plug 26 2839.0 -- φ 6.6% · Kh 0.0 mD · Kv 0.0 mD · So 0.0% · Sw 76.5% · Density 2.75 · FSP 2.9 · CORE LABORATORIES SS GY FG W/PBLS CALC CMT --
21/01a- 9 ↳ Plug 27 2839.25 -- φ 5.0% · Kh 0.0 mD · CORE LABORATORIES SS GY FG W/PBLS CALC CMT --
21/01a- 9 ↳ Plug 28 2839.5 -- CORE LABORATORIES INSUFFICIENT SAMPLE --
21/01a- 9 ↳ Plug 29 2839.75 -- φ 5.9% · Kh 0.1 mD · CORE LABORATORIES SS GY VF-FG CALC CMT MICA --
21/01a- 9 ↳ Plug 30 2840.0 -- φ 9.9% · Kh 1.4 mD · CORE LABORATORIES SS GY VF-FG CALC CMT MICA --
21/01a- 9 ↳ Plug 31 2840.25 -- φ 7.7% · Kh 0.1 mD · Density 2.75 · CORE LABORATORIES SS GY VF-FG CALC CMT MICA --
21/01a- 9 ↳ Plug 32 2840.5 -- CORE LABORATORIES RUBBLE --
21/01a- 9 ↳ Plug 33 2840.75 -- CORE LABORATORIES MUDSTONE --
21/01a- 9 ↳ Plug 34 2841.0 -- CORE LABORATORIES MUDSTONE --
21/01a- 9 ↳ Plug 35 2841.25 -- CORE LABORATORIES MUDSTONE --
21/01a- 9 ↳ Plug 36 2841.5 -- CORE LABORATORIES MUDSTONE --
21/01a- 9 ↳ Plug 37 2841.75 -- φ 12.3% · Density 2.76 · CORE LABORATORIES SS BRN VF-FG CALC CMT MICA --
21/01a- 9 ↳ Plug 38 2842.0 -- CORE LABORATORIES MUDSTONE --
21/01a- 9 ↳ Plug 39 2842.25 -- φ 7.9% · CORE LABORATORIES SS GY VF-FG CALC CMT MICA --
21/01a- 9 ↳ Plug 40 2842.5 -- φ 8.3% · CORE LABORATORIES SS GY F-MG CALC CMT --
21/01a- 9 ↳ Plug 41 2842.75 -- φ 8.9% · Kh 0.1 mD · CORE LABORATORIES SS GY VF-FG CALC CMT --
21/01a- 9 ↳ Plug 42 2843.0 -- φ 3.4% · Kh 0.0 mD · Kv 0.0 mD · So 39.1% · Sw 29.3% · Density 2.67 · FSP 6.5 · CORE LABORATORIES SS GY VF-FG CALC CMT --
21/01a- 9 ↳ Plug 43 2843.25 -- φ 4.1% · Kh 0.0 mD · CORE LABORATORIES SS GY VF-FG CALC CMT --
21/01a- 9 ↳ Plug 44 2843.5 -- φ 2.2% · Kh 0.1 mD · CORE LABORATORIES SS GY VF-FG CALC CMT --
21/01a- 9 ↳ Plug 45 2843.75 -- φ 7.6% · Kh 0.5 mD · CORE LABORATORIES SS GY VF-FG CALC CMT MICA --
21/01a- 9 ↳ Plug 46 2844.0 -- φ 9.7% · Kh 0.4 mD · CORE LABORATORIES SS GY VF-FG CALC CMT MICA --
21/01a- 9 ↳ Plug 47 2844.25 -- φ 8.4% · CORE LABORATORIES SS GY VF-FG CALC CMT --
21/01a- 9 ↳ Plug 48 2844.5 -- φ 10.3% · Kh 0.5 mD · CORE LABORATORIES SS GY VF-FG CALC CMT MICA --
21/01a- 9 ↳ Plug 49 2844.75 -- φ 9.5% · Density 2.67 · CORE LABORATORIES SS GY VF-FG CALC CMT MICA --
21/01a- 9 ↳ Plug 50 2845.0 -- So 47.2% · Sw 12.9% · FSP 4.9 · CORE LABORATORIES NO PLUG POSSIBLE --
21/01a- 9 ↳ Plug 51 2845.25 -- φ 5.7% · Kh 0.1 mD · Density 2.67 · CORE LABORATORIES SS GY FG CALC CMT --
21/01a- 9 ↳ Plug 52 2845.5 -- φ 8.6% · Kh 2.0 mD · CORE LABORATORIES SS GY VF-FG CALC CMT --
21/01a- 9 ↳ Plug 53 2845.75 -- φ 7.0% · Kh 0.2 mD · CORE LABORATORIES SS GY F-MG CALC CMT --
21/01a- 9 ↳ Plug 54 2846.0 -- CORE LABORATORIES INSUFFICIENT SAMPLE --
21/01a- 9 ↳ Plug 55 2846.25 -- φ 6.5% · Kh 0.0 mD · CORE LABORATORIES SS GY VF-FG CALC CMT --

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
21/01a- 9 0 -- -- --
21/01a- 9V 0 -- -- --
21/01a- 9W 0 -- -- --
21/01a- 9X 0 -- -- --
21/01a- 9Y 0 -- -- --
21/01a- 9Z 0 -- -- --

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