Well Data Manager / Well Summary / 31/26a- 12

31/26a- 12

Decommissioned

Well Header

Well No

31/26a- 12

NSTA DEN No

6159

Well Name

Drill Seq No

Quadrant / Block

31 / 26 a

Surface Location

56.077348, 3.116806

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

1997-06-10

Source File

nsta_feature_service

Imported

2026-05-22 15:28

Wellbores (1)

31/26a- 12 Original

Abandoned Phase 3 Interpreted Data Survey

Current Intent

Exploration

Original Intent

Exploration

Flow Class

Oil Well

Dev Type

Convention

Primary Target

Well Seq

WB1

Datum Type

Kelly Bushing

Datum Elev (m)

27.432

Ground Elev (m)

Water Depth (m)

70.71

TD MD (m)

3203.448

TD TVDSS (m)

3212.287

TD Datum Depth (m)

27.432

TD Datum Type

Kelly Bushing

Spud Date

1997-06-10

TD Reached

1997-07-14

Completion Date

1997-08-25

Release Date

2001-08-25

Formation Tops (16)

Wellbore	Formation	Era	MD (m)	TVDSS (m)	Provider
31/26a- 12	Horda	Cenozoic	2256.000	2228.568	Lloyds Register
	Stronsay	Cenozoic	2256.000	2228.568	Lloyds Register
	Balder	Cenozoic	2460.000	2432.568	Lloyds Register
	Balder Tuff	Cenozoic	2460.000	2432.568	Lloyds Register
	Moray	Mesozoic	2460.000	2432.568	Lloyds Register
	Sele	Mesozoic	2466.000	2438.568	Lloyds Register
	Lista	Mesozoic	2477.000	2449.568	Lloyds Register
	Montrose	Mesozoic	2477.000	2449.568	Lloyds Register
	Maureen	Mesozoic	2509.000	2481.568	Lloyds Register
	Ekofisk	Mesozoic	2523.000	2495.568	Lloyds Register
	Chalk	Mesozoic	2523.000	2495.568	Lloyds Register
	Upper Cretaceous Chalk	Mesozoic	2591.000	2563.568	Lloyds Register
	Humber	Mesozoic	2651.000	2623.568	Lloyds Register
	Fulmar	Mesozoic	2651.000	2623.568	Lloyds Register
	Carboniferous Undifferentiated	Palaeozoic	2678.000	2650.568	Lloyds Register
	Carboniferous	Palaeozoic	2678.000	2650.568	Lloyds Register

Lithology Intervals

31/26a- 12 Curve: SANDCOUNT 31 intervals · MD 2523.744 – 3208.325 m G:/NSTA_BigFiles/NSTA_Packages/Lloyds_Register/NSTA Centr...

LITH Sand (30)

Limestone (1)

Interpreted Data Inventory (LR / WellStrat)

Open Interpreted Data Log

Wellbore	Groups	Formations	Members	Strat Intervals	Tops	HC Occ	Core	Cuttings	DSTs
31/26a- 12	6	9	1	11	16	3	0	0	2	View

Hydrocarbon Occurrence (5)

Wellbore	Category	Code	Formation / Litho	Top MD (m)	Base MD (m)	Notes
31/26a- 12	DST	DST 2	--	2515.5	2575.6	Label / Upper Cretaceous
31/26a- 12	Oil shows	OS	Tor Formation	2590.8	--	60 m thick
31/26a- 12	Oil shows	OS	JSND	2650.5408	--	27 m thick
31/26a- 12	DST	DST 1A	--	2650.8	2709.7	Label / Carboniferous
31/26a- 12	Oil shows	OS	*	2677.668	--	91 m thick

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
31/26a- 12	0	--	--	--

31/26a- 12

Well Header

Wellbores (1)

Formation Tops (16)

Lithology Intervals

Interpreted Data Inventory (LR / WellStrat)

Hydrocarbon Occurrence (5)

Rock Samples (0)

Wireline Log Inventory (Ingested Curves)

Source LAS Manifest (Best Curve per Type)

Survey Inventory (Deviation)

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