21/25- 11

Decommissioned

Well Header

Well No
21/25- 11
NSTA DEN No
4836
Well Name
--
Drill Seq No
11
Quadrant / Block
21 / 25
Surface Location
57.275525, 0.968112
Source Datum
ED50
Subsea Well
Unknown
Platform
--
Slot No
--
Operator
SHELL U.K. LIMITED
Original Operator
--
Sub Area Operator
SHELL U.K. LIMITED
Licence No
P13
Licence Type
Production
Spud Date
1992-10-20
Source File
nsta_feature_service
Imported
2026-05-22 15:28

Wellbores (1)

21/25- 11 Original
Current Intent
Exploration
Original Intent
Exploration
Flow Class
Dry Hole
Dev Type
--
Convention
--
Primary Target
R
Well Seq
WB1
Datum Type
Kelly Bushing
Datum Elev (m)
21.946
Ground Elev (m)
--
Water Depth (m)
92.05
TD MD (m)
4740.250
TD TVDSS (m)
4600.042
TD Datum Depth (m)
21.946
TD Datum Type
Kelly Bushing
Spud Date
1992-10-20
TD Reached
1993-03-22
Completion Date
1993-04-03
Release Date
1997-04-03

Formation Tops (26)

Wellbore Formation Era MD (m) TVDSS (m) Provider
21/25- 11 Horda Cenozoic 2295.000 2273.054 Lloyds Register
Stronsay Cenozoic 2295.000 2273.054 Lloyds Register
Lower Tay Sandstone 2491.000 2469.054 Lloyds Register
Balder Cenozoic 2606.000 2584.054 Lloyds Register
Moray Mesozoic 2606.000 2584.054 Lloyds Register
Sele Mesozoic 2626.000 2604.054 Lloyds Register
Cromarty Sandstone Cenozoic 2626.000 2604.054 Lloyds Register
Forties Sandstone Mesozoic 2711.000 2689.054 Lloyds Register
Montrose Mesozoic 2737.000 2715.054 Lloyds Register
Lista Mesozoic 2737.000 2715.054 Lloyds Register
Maureen Mesozoic 2824.000 2802.054 Lloyds Register
Maureen Reworked Unit Mesozoic 2824.000 2802.054 Lloyds Register
Chalk Mesozoic 2879.000 2857.054 Lloyds Register
Ekofisk Mesozoic 2879.000 2857.054 Lloyds Register
Tor Mesozoic 2977.000 2955.054 Lloyds Register
Mackerel Mesozoic 3300.000 3278.054 Lloyds Register
Herring Mesozoic 3416.000 3394.054 Lloyds Register
Hidra Mesozoic 3483.000 3461.054 Lloyds Register
Rodby Mesozoic 3558.000 3536.054 Lloyds Register
Cromer Knoll Mesozoic 3558.000 3536.054 Lloyds Register
Sola 3612.000 3590.054 Lloyds Register
Valhall Mesozoic 3655.000 3633.054 Lloyds Register
Humber Mesozoic 3748.000 3726.054 Lloyds Register
Kimmeridge Clay 3748.000 3726.054 Lloyds Register
Heather Mesozoic 3986.000 3964.054 Lloyds Register
Fulmar Mesozoic 4726.000 4704.054 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
21/25- 11 6 16 4 64 26 2 2 1 0 View

Hydrocarbon Occurrence (1)

Wellbore Category Code Formation / Litho Top MD (m) Base MD (m) Notes
21/25- 11 Mixed shows OGS Fulmar Formation 4725.924 -- 36 m thick

Rock Samples (21)

Wellbore Sample Top MD (m) Base MD (m) Key Lab Results Comments Notes
21/25- 11 Cuttings 1298.45 4762.2 -- -- --
21/25- 11 Core #1 4731.72 4734.15 φ 14.8% (n=3) · Kh 3.6 mD (n=3) · Kv 8.9 mD (n=1) · Density 2.71 (n=3) · GEOCHEM GROUP LIMITED -- --
21/25- 11 ↳ Plug 01 4731.837 -- φ 17.6% · Kh 7.2 mD · Kv 8.9 mD · Density 2.66 · GEOCHEM GROUP LIMITED -- --
21/25- 11 ↳ Plug 02 4732.66 -- φ 16.0% · Kh 3.0 mD · Density 2.66 · GEOCHEM GROUP LIMITED -- --
21/25- 11 ↳ Plug 03 4733.727 -- φ 10.8% · Kh 0.5 mD · Density 2.80 · GEOCHEM GROUP LIMITED -- --
21/25- 11 Core #2 4750.0 4760.98 φ 9.0% (n=13) · Kh 0.4 mD (n=13) · Kv 0.0 mD (n=4) · Density 2.72 (n=13) · GEOCHEM GROUP LIMITED -- --
21/25- 11 ↳ Plug 04 4750.034 -- φ 9.0% · Kh 0.0 mD · Kv 0.0 mD · Density 2.96 · GEOCHEM GROUP LIMITED -- --
21/25- 11 ↳ Plug 05 4750.887 -- φ 8.3% · Kh 0.1 mD · Density 2.92 · GEOCHEM GROUP LIMITED -- --
21/25- 11 ↳ Plug 06 4751.862 -- φ 7.8% · Kh 0.1 mD · Density 2.68 · GEOCHEM GROUP LIMITED -- --
21/25- 11 ↳ Plug 07 4752.777 -- φ 11.7% · Kh 0.0 mD · Density 2.64 · GEOCHEM GROUP LIMITED -- --
21/25- 11 ↳ Plug 08 4753.051 -- Kv 0.0 mD · GEOCHEM GROUP LIMITED -- --
21/25- 11 ↳ Plug 09 4753.63 -- φ 9.6% · Kh 0.0 mD · Density 2.61 · GEOCHEM GROUP LIMITED -- --
21/25- 11 ↳ Plug 10 4754.545 -- φ 11.0% · Kh 0.1 mD · Density 2.63 · GEOCHEM GROUP LIMITED -- --
21/25- 11 ↳ Plug 11 4755.52 -- φ 10.0% · Kh 0.0 mD · Density 2.62 · GEOCHEM GROUP LIMITED -- --
21/25- 11 ↳ Plug 12 4756.099 -- Kv 0.0 mD · GEOCHEM GROUP LIMITED -- --
21/25- 11 ↳ Plug 13 4756.374 -- φ 8.7% · Kh 0.9 mD · Density 2.65 · GEOCHEM GROUP LIMITED -- --
21/25- 11 ↳ Plug 14 4757.288 -- φ 8.5% · Kh 0.2 mD · Density 2.73 · GEOCHEM GROUP LIMITED -- --
21/25- 11 ↳ Plug 15 4758.263 -- φ 8.7% · Kh 3.2 mD · Density 2.66 · GEOCHEM GROUP LIMITED -- --
21/25- 11 ↳ Plug 16 4759.178 -- φ 8.0% · Kh 0.0 mD · Kv 0.0 mD · Density 2.68 · GEOCHEM GROUP LIMITED -- --
21/25- 11 ↳ Plug 17 4760.092 -- φ 8.6% · Kh 0.1 mD · Density 2.64 · GEOCHEM GROUP LIMITED -- --
21/25- 11 ↳ Plug 18 4760.946 -- φ 7.7% · Kh 0.1 mD · Density 2.88 · GEOCHEM GROUP LIMITED -- --

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
21/25- 11 0 -- -- --

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