Well Data Manager / Well Summary / 42/27a- 1

42/27a- 1

Decommissioned

Well Header

Well No

42/27a- 1

NSTA DEN No

4282

Well Name

Drill Seq No

Quadrant / Block

42 / 27 a

Surface Location

54.041751, 0.232392

Source Datum

ED50

Subsea Well

Platform

Slot No

Operator

BG INTERNATIONAL LIMITED

Original Operator

Sub Area Operator

BG INTERNATIONAL LIMITED

Licence No

P302

Licence Type

Production

Spud Date

1990-12-17

Source File

nsta_feature_service

Imported

2026-05-22 15:28

Wellbores (1)

42/27a- 1 Original

Abandoned Phase 3 View Log Interpreted Data Survey

Current Intent

Exploration

Original Intent

Exploration

Flow Class

Gas Show

Dev Type

Convention

Primary Target

Well Seq

WB1

Datum Type

Kelly Bushing

Datum Elev (m)

33.528

Ground Elev (m)

Water Depth (m)

55.17

TD MD (m)

3201.010

TD TVDSS (m)

3193.694

TD Datum Depth (m)

33.528

TD Datum Type

Kelly Bushing

Spud Date

1990-12-17

TD Reached

1991-01-25

Completion Date

1991-02-06

Release Date

1995-02-06

Formation Tops (42)

Wellbore	Formation	Era	MD (m)	TVDSS (m)	Provider
42/27a- 1	Unknown		89.000	55.472	BGS LithoStrat Upper
	Chalk	Mesozoic	168.000	134.469	BGS LithoStrat Upper
	Plenus Marl		596.000	562.427	BGS LithoStrat Upper
	Chalk	Mesozoic	597.000	563.427	BGS LithoStrat Upper
	Red Chalk	Mesozoic	636.000	602.419	BGS LithoStrat Upper
	Speeton Clay		660.000	626.412	BGS LithoStrat Upper
	Kimmeridge Clay		792.000	758.375	BGS LithoStrat Upper
	Corallian	Palaeozoic	928.000	894.342	BGS LithoStrat Upper
	Oxford Clay		981.000	947.312	BGS LithoStrat Upper
	West Sole	Mesozoic	1004.000	970.298	BGS LithoStrat Upper
	Lias	Mesozoic	1055.000	1021.265	BGS LithoStrat Upper
	Winterton		1115.000	1081.224	BGS LithoStrat Upper
	Rhaetic Sandstone Member	Mesozoic	1120.000	1086.221	BGS LithoStrat Upper
	Winterton		1131.000	1097.213	BGS LithoStrat Upper
	Triton Anhydrite	Mesozoic	1144.000	1110.204	BGS LithoStrat Upper
	Dudgeon Saliferous		1335.000	1301.103	BGS LithoStrat Upper
	Keuper Halite Member	Mesozoic	1348.000	1314.098	BGS LithoStrat Upper
	Dudgeon Saliferous		1354.000	1320.096	BGS LithoStrat Upper
	Dowsing Dolomite		1417.000	1383.087	BGS LithoStrat Upper
	Rot Halite Member		1479.000	1445.086	BGS LithoStrat Upper
	Rot Clay Member		1556.000	1522.077	BGS LithoStrat Upper
	Bunter Sandstone	Mesozoic	1573.000	1539.075	BGS LithoStrat Upper
	Bunter Shale	Mesozoic	1902.000	1867.921	BGS LithoStrat Upper
	Brockelschiefer Member		2277.000	2242.228	BGS LithoStrat Upper
	Zechstein Z5		2304.000	2269.156	BGS LithoStrat Upper
	Aller Potash		2327.000	2292.084	BGS LithoStrat Upper
	Aller Evaporite	Palaeozoic	2372.000	2336.968	BGS LithoStrat Upper
	Pegmatitanhydrit	Palaeozoic	2390.000	2354.941	BGS LithoStrat Upper
	Roter Salzton	Palaeozoic	2397.000	2361.931	BGS LithoStrat Upper
	Leine Potash		2420.000	2384.908	BGS LithoStrat Upper
	Leine Evaporite	Palaeozoic	2430.000	2394.897	BGS LithoStrat Upper
	Hauptanhydrit	Palaeozoic	2455.000	2419.868	BGS LithoStrat Upper
	Plattendolomit	Palaeozoic	2488.000	2452.834	BGS LithoStrat Upper
	Grauer Salzton	Palaeozoic	2554.000	2518.759	BGS LithoStrat Upper
	Deckanhydrit		2556.000	2520.756	BGS LithoStrat Upper
	Stassfurt Halite	Palaeozoic	2557.000	2521.755	BGS LithoStrat Upper
	Basalanhydrit	Palaeozoic	2866.000	2830.115	BGS LithoStrat Upper
	Hauptdolomit	Palaeozoic	2870.000	2834.099	BGS LithoStrat Upper
	Werraanhydrit	Palaeozoic	2907.000	2870.955	BGS LithoStrat Upper
	Zechsteinkalk	Palaeozoic	2925.000	2888.886	BGS LithoStrat Upper
	Silverpit		2932.000	2895.860	BGS LithoStrat Upper
	Millstone Grit		2964.000	2927.739	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
42/27a- 1	9	7	0	42	42	1	2	1	1	View

Hydrocarbon Occurrence (2)

Wellbore	Category	Code	Formation / Litho	Top MD (m)	Base MD (m)	Notes
42/27a- 1	Gas shows	GS	MG	2964.4848	--	270 m thick
42/27a- 1	DST	DST 1	--	3157.4	3230.9	Label / Namurian

Rock Samples (75)

Wellbore	Sample	Top MD (m)	Base MD (m)	Key Lab Results	Comments	Notes
42/27a- 1	Cuttings	176.78	3230.88	--	--	.
42/27a- 1	Core #1	3041.9	3053.09	φ 2.9% (n=32) · Kh 0.1 mD (n=12) · Kv 0.0 mD (n=6) · Density 2.69 (n=32) · BRITISH GAS	--	.
42/27a- 1	↳ Plug 1	3041.934	--	φ 3.8% · Kh 0.0 mD · Density 2.66 · BRITISH GAS	--	--
42/27a- 1	↳ Plug 27	3042.056	--	φ 2.8% · Kv 0.0 mD · Density 2.69 · BRITISH GAS	--	--
42/27a- 1	↳ Plug 2	3042.239	--	φ 3.2% · Kh 0.0 mD · Density 2.68 · BRITISH GAS	--	--
42/27a- 1	↳ Plug 3	3042.514	--	φ 4.1% · Density 2.56 · BRITISH GAS	--	--
42/27a- 1	↳ Plug 4	3042.879	--	φ 2.4% · Density 2.60 · BRITISH GAS	--	--
42/27a- 1	↳ Plug 5	3043.093	--	φ 3.7% · Density 2.95 · BRITISH GAS	--	--
42/27a- 1	↳ Plug 6	3043.306	--	φ 0.8% · Density 2.61 · BRITISH GAS	--	--
42/27a- 1	↳ Plug 28	3043.58	--	φ 1.3% · Kv 0.0 mD · Density 2.89 · BRITISH GAS	--	--
42/27a- 1	↳ Plug 7	3043.794	--	φ 1.0% · Density 2.62 · BRITISH GAS	--	--
42/27a- 1	↳ Plug 8	3044.373	--	φ 1.1% · Kh 0.0 mD · Density 2.61 · BRITISH GAS	--	--
42/27a- 1	↳ Plug 9	3044.922	--	φ 6.2% · Kh 0.1 mD · Density 2.70 · BRITISH GAS	--	--
42/27a- 1	↳ Plug 29	3045.043	--	φ 5.8% · Kv 0.0 mD · Density 2.71 · BRITISH GAS	--	--
42/27a- 1	↳ Plug 10	3045.226	--	φ 6.8% · Kh 0.1 mD · Density 2.70 · BRITISH GAS	--	--
42/27a- 1	↳ Plug 11	3045.501	--	φ 6.7% · Kh 0.1 mD · Density 2.67 · BRITISH GAS	--	--
42/27a- 1	↳ Plug 12	3045.866	--	φ 4.1% · Kh 0.1 mD · Density 2.65 · BRITISH GAS	--	--
42/27a- 1	↳ Plug 13	3046.141	--	φ 1.5% · Kh 0.1 mD · Density 2.61 · BRITISH GAS	--	--
42/27a- 1	↳ Plug 30	3046.385	--	φ 1.6% · Kv 0.0 mD · Density 2.65 · BRITISH GAS	--	--
42/27a- 1	↳ Plug 14	3046.506	--	φ 1.5% · Density 2.60 · BRITISH GAS	--	--
42/27a- 1	↳ Plug 15	3046.781	--	φ 1.2% · Density 2.63 · BRITISH GAS	--	--
42/27a- 1	↳ Plug 16	3047.086	--	φ 1.9% · Kh 0.0 mD · Density 2.69 · BRITISH GAS	--	--
42/27a- 1	↳ Plug 17	3047.482	--	φ 4.7% · Density 2.63 · BRITISH GAS	--	--
42/27a- 1	↳ Plug 18	3047.695	--	φ 1.4% · Kh 0.0 mD · Density 2.78 · BRITISH GAS	--	--
42/27a- 1	↳ Plug 19	3047.909	--	φ 1.7% · Density 2.62 · BRITISH GAS	--	--
42/27a- 1	↳ Plug 31	3047.909	--	φ 0.9% · Kv 0.0 mD · Density 2.65 · BRITISH GAS	--	--
42/27a- 1	↳ Plug 20	3048.396	--	φ 2.7% · Density 2.64 · BRITISH GAS	--	--
42/27a- 1	↳ Plug 21	3048.884	--	φ 2.9% · Density 2.70 · BRITISH GAS	--	--
42/27a- 1	↳ Plug 22	3049.158	--	φ 1.5% · Density 2.69 · BRITISH GAS	--	--
42/27a- 1	↳ Plug 23	3049.463	--	φ 2.1% · Kh 0.1 mD · Density 2.67 · BRITISH GAS	--	--
42/27a- 1	↳ Plug 32	3049.676	--	φ 0.6% · Kv 0.1 mD · Density 2.90 · BRITISH GAS	--	--
42/27a- 1	↳ Plug 24	3049.707	--	φ 1.6% · Kh 0.6 mD · Density 2.90 · BRITISH GAS	--	--
42/27a- 1	↳ Plug 25	3050.134	--	φ 7.2% · Density 2.69 · BRITISH GAS	--	--
42/27a- 1	↳ Plug 26	3051.078	--	φ 2.7% · Density 2.69 · BRITISH GAS	--	--
42/27a- 1	Core #2	3169.92	3193.6	φ 6.7% (n=40) · Kh 0.3 mD (n=24) · Kv 0.3 mD (n=16) · Density 2.66 (n=40) · BRITISH GAS	--	.
42/27a- 1	↳ Plug 33	3169.981	--	φ 5.7% · Kh 0.1 mD · Density 2.59 · BRITISH GAS	--	--
42/27a- 1	↳ Plug 107	3170.042	--	φ 7.8% · Kv 0.2 mD · Density 2.64 · BRITISH GAS	--	--
42/27a- 1	↳ Plug 34	3170.286	--	φ 6.9% · Kh 0.8 mD · Density 2.64 · BRITISH GAS	--	--
42/27a- 1	↳ Plug 35	3170.682	--	φ 5.9% · Kh 0.1 mD · Density 2.62 · BRITISH GAS	--	--
42/27a- 1	↳ Plug 36	3170.895	--	φ 5.7% · Kh 0.0 mD · Density 2.64 · BRITISH GAS	--	--
42/27a- 1	↳ Plug 37	3171.261	--	φ 2.9% · Kh 0.0 mD · Density 2.60 · BRITISH GAS	--	--
42/27a- 1	↳ Plug 38	3171.657	--	φ 2.7% · Kh 0.1 mD · Density 2.66 · BRITISH GAS	--	--
42/27a- 1	↳ Plug 108	3171.749	--	φ 4.3% · Kv 0.2 mD · Density 2.77 · BRITISH GAS	--	--
42/27a- 1	↳ Plug 39	3171.932	--	φ 3.6% · Kh 0.1 mD · Density 2.63 · BRITISH GAS	--	--
42/27a- 1	↳ Plug 40	3172.145	--	φ 4.5% · Kh 0.2 mD · Density 2.67 · BRITISH GAS	--	--
42/27a- 1	↳ Plug 41	3172.511	--	φ 6.5% · Kh 0.1 mD · Density 2.69 · BRITISH GAS	--	--
42/27a- 1	↳ Plug 42	3172.816	--	φ 8.0% · Kh 0.5 mD · Density 2.66 · BRITISH GAS	--	--
42/27a- 1	↳ Plug 43	3173.151	--	φ 8.0% · Kh 1.6 mD · Density 2.64 · BRITISH GAS	--	--
42/27a- 1	↳ Plug 44	3173.425	--	φ 11.0% · Kh 1.2 mD · Density 2.64 · BRITISH GAS	--	--
42/27a- 1	↳ Plug 109	3173.547	--	φ 9.7% · Kv 0.6 mD · Density 2.64 · BRITISH GAS	--	--
42/27a- 1	↳ Plug 45	3173.7	--	φ 7.6% · Kh 0.2 mD · Density 2.63 · BRITISH GAS	--	--
42/27a- 1	↳ Plug 46	3174.096	--	φ 8.1% · Kh 0.1 mD · Density 2.62 · BRITISH GAS	--	--
42/27a- 1	↳ Plug 47	3174.401	--	φ 6.3% · Kh 0.2 mD · Density 2.64 · BRITISH GAS	--	--
42/27a- 1	↳ Plug 48	3174.675	--	φ 5.8% · Kh 0.1 mD · Density 2.59 · BRITISH GAS	--	--
42/27a- 1	↳ Plug 110	3174.919	--	φ 6.8% · Kv 0.1 mD · Density 2.64 · BRITISH GAS	--	--
42/27a- 1	↳ Plug 49	3175.01	--	φ 6.0% · Kh 0.1 mD · Density 2.62 · BRITISH GAS	--	--
42/27a- 1	↳ Plug 50	3175.315	--	φ 6.5% · Kh 0.2 mD · Density 2.66 · BRITISH GAS	--	--
42/27a- 1	↳ Plug 111	3176.778	--	φ 8.7% · Kv 0.2 mD · Density 2.68 · BRITISH GAS	--	--
42/27a- 1	↳ Plug 112	3178.15	--	φ 6.5% · Kv 0.2 mD · Density 2.91 · BRITISH GAS	--	--
42/27a- 1	↳ Plug 113	3179.674	--	φ 7.4% · Kv 1.7 mD · Density 2.79 · BRITISH GAS	--	--
42/27a- 1	↳ Plug 114	3180.984	--	φ 6.7% · Kv 0.2 mD · Density 2.68 · BRITISH GAS	--	--
42/27a- 1	↳ Plug 115	3182.661	--	φ 4.8% · Kv 0.1 mD · Density 2.71 · BRITISH GAS	--	--
42/27a- 1	↳ Plug 116	3184.093	--	φ 8.5% · Kv 0.3 mD · Density 2.67 · BRITISH GAS	--	--
42/27a- 1	↳ Plug 117	3185.77	--	φ 6.7% · Kv 0.2 mD · Density 2.74 · BRITISH GAS	--	--
42/27a- 1	↳ Plug 118	3187.446	--	φ 7.9% · Kv 0.1 mD · Density 2.63 · BRITISH GAS	--	--
42/27a- 1	↳ Plug 119	3188.909	--	φ 7.1% · Kv 0.1 mD · Density 2.64 · BRITISH GAS	--	--
42/27a- 1	↳ Plug 120	3190.555	--	φ 9.2% · Kv 0.2 mD · Density 2.64 · BRITISH GAS	--	--
42/27a- 1	↳ Plug 101	3191.561	--	φ 8.8% · Kh 0.3 mD · Density 2.63 · BRITISH GAS	--	--
42/27a- 1	↳ Plug 102	3191.896	--	φ 8.7% · Kh 0.3 mD · Density 2.64 · BRITISH GAS	--	--
42/27a- 1	↳ Plug 121	3192.109	--	φ 7.7% · Kv 0.2 mD · Density 2.67 · BRITISH GAS	--	--
42/27a- 1	↳ Plug 103	3192.231	--	φ 4.6% · Kh 0.1 mD · Density 2.67 · BRITISH GAS	--	--
42/27a- 1	↳ Plug 104	3192.536	--	φ 4.7% · Kh 0.1 mD · Density 2.68 · BRITISH GAS	--	--
42/27a- 1	↳ Plug 105	3193.054	--	φ 7.6% · Kh 0.2 mD · Density 2.65 · BRITISH GAS	--	--
42/27a- 1	↳ Plug 106	3193.42	--	φ 6.0% · Kh 0.1 mD · Density 2.65 · BRITISH GAS	--	--
42/27a- 1	↳ Plug 122	3193.542	--	φ 4.2% · Kv 0.0 mD · Density 2.70 · BRITISH GAS	--	--

Wireline Log Inventory (Ingested Curves)

Wellbore	Depth Start (m)	Depth Stop (m)	Typed Curves	Auto-scaled	Ingested
42/27a- 1	88.6968002319336	3232.556396484375	11	0	2026-08-06 14:05:53.132192+00	View Log

Source LAS Manifest (Best Curve per Type)

Open full Manifest browser

42/27a- 1

Curve Type	Best Mnemonic	Source	Depth Start (m)	Depth Stop (m)	Samples
bulk_density	RHOB	CGG Digital Well Logs	2304.4404	3223.1076000000003	6029
caliper	C2	CGG Digital Well Logs	412.3944	1183.6908	5062
caliper	CALI	CGG Digital Well Logs	412.3944	3223.26	18343
caliper	CALS	CGG Digital Well Logs	1199.2356	3215.0304	13228
caliper	C1	CGG Digital Well Logs	412.3944	1183.6908	5062
comp_sonic	DT	CGG Digital Well Logs	412.3944	3221.5836000000004	18434
deep_resistivity	LLD	CGG Digital Well Logs	1199.5404	3229.0512000000003	13318
deep_resistivity	ILD	CGG Digital Well Logs	2309.9268	3231.1848	6046
deep_resistivity	LLG	CGG Digital Well Logs	1199.8452	3229.8132	13321
density_correction	DRHO	CGG Digital Well Logs	2304.4404	3223.1076000000003	6029
gamma_ray	GR	CGG Digital Well Logs	88.69680000000001	3223.5648	20571
gamma_ray	CGR	CGG Digital Well Logs	2282.19	3214.2684000000004	6117
gamma_ray	SGR	CGG Digital Well Logs	2282.19	3214.2684000000004	6117
med_resistivity	ILM	CGG Digital Well Logs	2305.5072	3232.5564	6084
micro_resistivity	MSFL	CGG Digital Well Logs	1199.6928	3215.1828	13226
neutron_por	NPHI	CGG Digital Well Logs	2281.5804000000003	3217.9260000000004	6145
pef	PEF	CGG Digital Well Logs	2304.4404	3223.1076000000003	6029
shallow_resistivity	SFLU	CGG Digital Well Logs	2308.2504	3232.0992	6063
shallow_resistivity	LLS	CGG Digital Well Logs	1199.9976000000001	3229.8132	13320
thorium	THOR	CGG Digital Well Logs	2282.19	3214.2684000000004	6117
uranium	URAN	CGG Digital Well Logs	2282.19	3214.2684000000004	6117

Survey Inventory (Deviation)

Open full Survey detail

Wellbore	Stations	Max MD (m)	Max TVDSS (m)	Survey File
42/27a- 1	129	3230.880	3193.594	D:\BigSpatial\nsta_raw\CGG_Deviation\42-27a-1 12222ca-CGG-deviation.xls

42/27a- 1

Well Header

Wellbores (1)

Formation Tops (42)

Lithology Intervals

Interpreted Data Inventory (LR / WellStrat)

Hydrocarbon Occurrence (2)

Rock Samples (75)

Wireline Log Inventory (Ingested Curves)

Source LAS Manifest (Best Curve per Type)

Survey Inventory (Deviation)

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