31/26a- 11

Decommissioned

Well Header

Well No
31/26a- 11
NSTA DEN No
5341
Well Name
--
Drill Seq No
11
Quadrant / Block
31 / 26 a
Surface Location
56.002152, 3.183680
Source Datum
ED50
Subsea Well
Unknown
Platform
--
Slot No
--
Operator
HESS LIMITED
Original Operator
--
Sub Area Operator
HESS LIMITED
Licence No
P288
Licence Type
Production
Spud Date
1994-09-30
Source File
nsta_feature_service
Imported
2026-05-22 15:28

Wellbores (2)

31/26a- 11 Original
Current Intent
Appraisal
Original Intent
Appraisal
Flow Class
Oil Well
Dev Type
--
Convention
--
Primary Target
PE1
Well Seq
WB1
Datum Type
Rotary Table
Datum Elev (m)
22.860
Ground Elev (m)
--
Water Depth (m)
68.88
TD MD (m)
3785.616
TD TVDSS (m)
2855.671
TD Datum Depth (m)
22.860
TD Datum Type
Rotary Table
Spud Date
1994-09-30
TD Reached
1994-11-09
Completion Date
1994-11-20
Release Date
1998-11-20
31/26a- 11Z Sidetrack Z parent: 31/26a- 11
Current Intent
Development
Original Intent
Development
Flow Class
--
Dev Type
Injector
Convention
--
Primary Target
PE1
Well Seq
WB2
Datum Type
Rotary Table
Datum Elev (m)
22.860
Ground Elev (m)
--
Water Depth (m)
68.88
TD MD (m)
3710.026
TD TVDSS (m)
2838.298
TD Datum Depth (m)
22.860
TD Datum Type
Rotary Table
Spud Date
1994-11-20
TD Reached
1994-12-13
Completion Date
2012-04-14
Release Date
2016-04-14

Formation Tops (17)

Wellbore Formation Era MD (m) TVDSS (m) Provider
31/26a- 11 Moray Mesozoic 3260.000 3237.140 Lloyds Register
Balder Cenozoic 3260.000 3237.140 Lloyds Register
Sele Mesozoic 3267.000 3244.140 Lloyds Register
Lista Mesozoic 3293.000 3270.140 Lloyds Register
Montrose Mesozoic 3293.000 3270.140 Lloyds Register
Maureen Mesozoic 3324.000 3301.140 Lloyds Register
Ekofisk Mesozoic 3341.000 3318.140 Lloyds Register
Chalk Mesozoic 3341.000 3318.140 Lloyds Register
Upper Cretaceous Chalk Mesozoic 3415.000 3392.140 Lloyds Register
Humber Mesozoic 3519.000 3496.140 Lloyds Register
Fulmar Mesozoic 3519.000 3496.140 Lloyds Register
Heron Palaeozoic 3552.000 3529.140 Lloyds Register
Smith Bank Mesozoic 3552.000 3529.140 Lloyds Register
Zechstein Palaeozoic 3628.000 3605.140 Lloyds Register
Turbot Anhydrite Palaeozoic 3628.000 3605.140 Lloyds Register
Rotliegend 3724.000 3701.140 Lloyds Register
Auk 3724.000 3701.140 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
31/26a- 11 7 10 0 13 17 3 3 0 0 View
31/26a- 11Z 0 0 0 0 0 0 8 1 0 View

Hydrocarbon Occurrence (2)

Wellbore Category Code Formation / Litho Top MD (m) Base MD (m) Notes
31/26a- 11 Oil shows OS Tor Formation 3415.284 -- 43 m thick
31/26a- 11 Oil shows OS Fulmar Formation 3519.2208 -- 33 m thick

Rock Samples (12)

Wellbore Sample Top MD (m) Base MD (m) Key Lab Results Comments Notes
31/26a- 11 Core #1 3394.56 3395.9 -- -- came in as 31/26PE1 (11)
31/26a- 11 Core #2 3401.87 3421.08 -- -- --
31/26a- 11 Core #3 3520.14 3556.1 -- -- --
31/26a- 11Z Cuttings 2087.88 3709.42 -- -- in as 31/26a-A 1
31/26a- 11Z Core #1 3449.42 3472.37 -- -- in as 31/26a-A 1
31/26a- 11Z Core #2 3473.81 3487.83 -- -- --
31/26a- 11Z Core #3 3487.83 3496.51 -- -- --
31/26a- 11Z Core #4 3496.67 3505.5 -- -- --
31/26a- 11Z Core #5 3505.5 3508.25 -- -- --
31/26a- 11Z Core #6 3508.25 3539.43 -- -- --
31/26a- 11Z Core #7 3539.34 3570.24 -- -- --
31/26a- 11Z Core #8 3570.43 3620.66 -- -- --

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
31/26a- 11 0 -- -- --
31/26a- 11Z 0 -- -- --

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