Well Data Manager / Well Summary / 21/10- 4

21/10- 4

Decommissioned

Well Header

Well No

21/10- 4

NSTA DEN No

411

Well Name

Drill Seq No

Quadrant / Block

21 / 10

Surface Location

57.790543, 0.845780

Source Datum

ED50

Subsea Well

Yes

Platform

Slot No

Operator

BP EXPLORATION OPERATING COMPANY LIMITED

Original Operator

Sub Area Operator

BP EXPLORATION OPERATING COMPANY LIMITED

Licence No

P57

Licence Type

Production

Spud Date

1972-06-09

Source File

nsta_feature_service

Imported

2026-05-22 15:28

Wellbores (1)

21/10- 4 Original

Abandoned Phase 3 View Log Interpreted Data Survey

Current Intent

Exploration

Original Intent

Exploration

Flow Class

Dry Hole

Dev Type

Convention

Primary Target

Well Seq

WB1

Datum Type

Kelly Bushing

Datum Elev (m)

33.800

Ground Elev (m)

Water Depth (m)

132.71

TD MD (m)

3470.000

TD TVDSS (m)

3435.000

TD Datum Depth (m)

33.800

TD Datum Type

Kelly Bushing

Spud Date

1972-06-09

TD Reached

1972-08-01

Completion Date

1972-08-12

Release Date

1976-08-12

Formation Tops (23)

Wellbore	Formation	Era	MD (m)	TVDSS (m)	Provider
21/10- 4	Horda	Cenozoic	1867.000	1833.181	Lloyds Register
	Stronsay	Cenozoic	1867.000	1833.181	Lloyds Register
	Moray	Mesozoic	2175.000	2141.178	Lloyds Register
	Balder	Cenozoic	2175.000	2141.178	Lloyds Register
	Balder Tuff	Cenozoic	2182.000	2148.178	Lloyds Register
	Sele	Mesozoic	2212.000	2178.177	Lloyds Register
	Forties Sandstone	Mesozoic	2255.000	2221.175	Lloyds Register
	Lista	Mesozoic	2441.000	2407.167	Lloyds Register
	Montrose	Mesozoic	2441.000	2407.167	Lloyds Register
	Balmoral Sandstone	Cenozoic	2468.000	2434.166	Lloyds Register
	Andrew Sandstone	Cenozoic	2576.000	2542.166	Lloyds Register
	Maureen	Mesozoic	2710.000	2676.165	Lloyds Register
	Chalk	Mesozoic	2743.000	2709.164	Lloyds Register
	Ekofisk	Mesozoic	2743.000	2709.164	Lloyds Register
	Upper Cretaceous Chalk	Mesozoic	2808.000	2774.152	Lloyds Register
	Cromer Knoll	Mesozoic	3398.000	3363.224	Lloyds Register
	Sola		3398.000	3363.224	Lloyds Register
	Kimmeridge Clay		3405.000	3370.215	Lloyds Register
	Humber	Mesozoic	3405.000	3370.215	Lloyds Register
	Heather	Mesozoic	3430.000	3395.188	Lloyds Register
	Rattray Volcanics	Mesozoic	3440.000	3405.181	Lloyds Register
	Pentland	Mesozoic	3440.000	3405.181	Lloyds Register
	Fladen	Mesozoic	3440.000	3405.181	Lloyds Register

Lithology Intervals

21/10- 4 Curve: SANDCOUNT 65 intervals · MD 245.974 – 3404.616 m G:/NSTA_BigFiles/NSTA_Packages/Lloyds_Register/NSTA Centr...

Sandstone (59)

Limestone (6)

Interpreted Data Inventory (LR / WellStrat)

Open Interpreted Data Log

Wellbore	Groups	Formations	Members	Strat Intervals	Tops	HC Occ	Core	Cuttings	DSTs
21/10- 4	7	11	5	17	23	1	3	1	1	View

Hydrocarbon Occurrence (1)

Wellbore	Category	Code	Formation / Litho	Top MD (m)	Base MD (m)	Notes
21/10- 4	DST	DST 1	--	2253.4	2270.2	Label / Forties

Rock Samples (60)

Wellbore	Sample	Top MD (m)	Base MD (m)	Key Lab Results	Comments	Notes
21/10- 4	Cuttings	250.0	3469.97	--	--	.
21/10- 4	Core #1	2260.98	2269.08	φ 27.0% (n=22) · Kh 304.6 mD (n=22) · Kv 113.8 mD (n=6) · Density 2.66 (n=22) · CORELAB	--	.
21/10- 4	↳ Plug 46	2261.87	--	φ 33.0% · Kh 1970.0 mD · Density 2.65 · CORELAB	--	--
21/10- 4	↳ Plug 47	2262.34	--	φ 33.0% · Kh 1122.0 mD · Density 2.64 · CORELAB	--	--
21/10- 4	↳ Plug 48	2262.88	--	φ 32.4% · Kh 632.0 mD · Density 2.66 · CORELAB	--	--
21/10- 4	↳ Plug 49	2263.35	--	φ 23.1% · Kh 1.0 mD · Density 2.70 · CORELAB	--	--
21/10- 4	↳ Plug 50	2264.14	--	φ 3.2% · Kh 0.3 mD · Kv 1.9 mD · Density 2.67 · CORELAB	--	--
21/10- 4	↳ Plug 51	2264.32	--	φ 17.9% · Kh 0.3 mD · Kv 4.3 mD · Density 2.64 · CORELAB	--	--
21/10- 4	↳ Plug 52	2265.05	--	φ 28.4% · Kh 92.0 mD · Density 2.67 · CORELAB	--	--
21/10- 4	↳ Plug 53	2265.31	--	φ 29.4% · Kh 4.3 mD · Kv 5.5 mD · Density 2.66 · CORELAB	--	--
21/10- 4	↳ Plug 54	2265.56	--	φ 31.4% · Kh 603.0 mD · Density 2.66 · CORELAB	--	--
21/10- 4	↳ Plug 55	2265.71	--	φ 33.3% · Kh 55.0 mD · Kv 395.0 mD · Density 2.65 · CORELAB	--	--
21/10- 4	↳ Plug 56	2265.9	--	φ 28.6% · Kh 231.0 mD · Kv 266.0 mD · Density 2.65 · CORELAB	--	--
21/10- 4	↳ Plug 57	2266.25	--	φ 30.1% · Kh 483.0 mD · Density 2.65 · CORELAB	--	--
21/10- 4	↳ Plug 58	2266.51	--	φ 29.3% · Kh 622.0 mD · Density 2.65 · CORELAB	--	--
21/10- 4	↳ Plug 59	2266.6	--	φ 20.7% · Kh 0.6 mD · Density 2.68 · CORELAB	--	--
21/10- 4	↳ Plug 60	2267.77	--	φ 30.2% · Kh 7.9 mD · Density 2.68 · CORELAB	--	--
21/10- 4	↳ Plug 61	2267.87	--	φ 31.7% · Kh 27.0 mD · Density 2.67 · CORELAB	--	--
21/10- 4	↳ Plug 62	2267.96	--	φ 28.8% · Kh 160.0 mD · Density 2.66 · CORELAB	--	--
21/10- 4	↳ Plug 63	2268.17	--	φ 34.0% · Kh 455.0 mD · Density 2.66 · CORELAB	--	--
21/10- 4	↳ Plug 64	2268.41	--	φ 18.0% · Kh 1.2 mD · Kv 9.9 mD · Density 2.74 · CORELAB	--	--
21/10- 4	↳ Plug 65	2268.48	--	φ 24.9% · Kh 8.0 mD · Density 2.66 · CORELAB	--	--
21/10- 4	↳ Plug 66	2268.59	--	φ 26.7% · Kh 157.0 mD · Density 2.65 · CORELAB	--	--
21/10- 4	↳ Plug 67	2268.83	--	φ 26.1% · Kh 69.0 mD · Density 2.65 · CORELAB	--	--
21/10- 4	Core #2	2437.06	2442.97	φ 24.2% (n=33) · Kh 73.8 mD (n=33) · Kv 185.7 mD (n=23) · Density 2.64 (n=33) · CORELAB	--	.
21/10- 4	↳ Plug 72	2437.16	--	φ 15.0% · Kh 0.1 mD · Density 2.52 · CORELAB	--	--
21/10- 4	↳ Plug 73	2437.33	--	φ 13.4% · Kh 0.2 mD · Kv 3.6 mD · Density 2.64 · CORELAB	--	--
21/10- 4	↳ Plug 74	2437.49	--	φ 28.9% · Kh 208.0 mD · Kv 441.0 mD · Density 2.64 · CORELAB	--	--
21/10- 4	↳ Plug 75	2437.66	--	φ 24.8% · Kh 290.0 mD · Kv 376.0 mD · Density 2.64 · CORELAB	--	--
21/10- 4	↳ Plug 76	2437.92	--	φ 24.6% · Kh 206.0 mD · Kv 393.0 mD · Density 2.65 · CORELAB	--	--
21/10- 4	↳ Plug 77	2438.02	--	φ 24.1% · Kh 255.0 mD · Kv 357.0 mD · Density 2.64 · CORELAB	--	--
21/10- 4	↳ Plug 78	2438.24	--	φ 23.8% · Kh 365.0 mD · Kv 295.0 mD · Density 2.64 · CORELAB	--	--
21/10- 4	↳ Plug 79	2438.41	--	φ 23.9% · Kh 292.0 mD · Kv 318.0 mD · Density 2.64 · CORELAB	--	--
21/10- 4	↳ Plug 80	2438.54	--	φ 17.7% · Kh 0.1 mD · Density 2.69 · CORELAB	--	--
21/10- 4	↳ Plug 81	2438.73	--	φ 26.7% · Kh 120.0 mD · Kv 143.0 mD · Density 2.65 · CORELAB	--	--
21/10- 4	↳ Plug 82	2438.99	--	φ 28.0% · Kh 72.0 mD · Kv 239.0 mD · Density 2.65 · CORELAB	--	--
21/10- 4	↳ Plug 83	2439.12	--	φ 31.1% · Kh 73.0 mD · Density 2.65 · CORELAB	--	--
21/10- 4	↳ Plug 84	2439.29	--	φ 21.4% · Kh 16.0 mD · Kv 23.0 mD · Density 2.61 · CORELAB	--	--
21/10- 4	↳ Plug 85	2439.39	--	φ 25.3% · Kh 25.0 mD · Kv 21.0 mD · Density 2.60 · CORELAB	--	--
21/10- 4	↳ Plug 86	2439.47	--	φ 28.3% · Kh 35.0 mD · Kv 40.0 mD · Density 2.65 · CORELAB	--	--
21/10- 4	↳ Plug 87	2439.69	--	φ 26.1% · Kh 9.3 mD · Kv 90.0 mD · Density 2.63 · CORELAB	--	--
21/10- 4	↳ Plug 88	2439.77	--	φ 27.6% · Kh 42.0 mD · Kv 165.0 mD · Density 2.63 · CORELAB	--	--
21/10- 4	↳ Plug 89	2439.89	--	φ 14.7% · Kh 32.0 mD · Kv 201.0 mD · Density 2.64 · CORELAB	--	--
21/10- 4	↳ Plug 90	2440.0	--	φ 27.3% · Kh 34.0 mD · Kv 126.0 mD · Density 2.64 · CORELAB	--	--
21/10- 4	↳ Plug 91	2440.13	--	φ 26.3% · Kh 204.0 mD · Kv 482.0 mD · Density 2.64 · CORELAB	--	--
21/10- 4	↳ Plug 92	2440.29	--	φ 23.2% · Kh 6.9 mD · Kv 36.0 mD · Density 2.64 · CORELAB	--	--
21/10- 4	↳ Plug 93	2440.41	--	φ 29.7% · Kh 87.0 mD · Kv 503.0 mD · Density 2.64 · CORELAB	--	--
21/10- 4	↳ Plug 94	2440.61	--	φ 25.1% · Kh 2.1 mD · Density 2.65 · CORELAB	--	--
21/10- 4	↳ Plug 95	2440.7	--	φ 26.8% · Kh 1.0 mD · Density 2.68 · CORELAB	--	--
21/10- 4	↳ Plug 96	2441.05	--	φ 33.2% · Kh 16.0 mD · Density 2.65 · CORELAB	--	--
21/10- 4	↳ Plug 97	2441.36	--	φ 29.3% · Kh 0.9 mD · Density 2.66 · CORELAB	--	--
21/10- 4	↳ Plug 98	2441.44	--	φ 22.6% · Kh 18.0 mD · Density 2.67 · CORELAB	--	--
21/10- 4	↳ Plug 99	2441.52	--	φ 31.4% · Kh 15.0 mD · Density 2.66 · CORELAB	--	--
21/10- 4	↳ Plug 100	2441.75	--	φ 18.9% · Kh 0.6 mD · Kv 3.7 mD · Density 2.64 · CORELAB	--	--
21/10- 4	↳ Plug 101	2442.08	--	φ 26.2% · Kh 2.1 mD · Kv 2.2 mD · Density 2.61 · CORELAB	--	--
21/10- 4	↳ Plug 102	2442.25	--	φ 17.2% · Kh 2.1 mD · Kv 7.6 mD · Density 2.60 · CORELAB	--	--
21/10- 4	↳ Plug 103	2442.46	--	φ 16.7% · Kh 2.5 mD · Kv 5.3 mD · Density 2.62 · CORELAB	--	--
21/10- 4	↳ Plug 104	2442.72	--	φ 17.9% · Kh 1.2 mD · Density 2.67 · CORELAB	--	--
21/10- 4	Core #3	2637.98	2645.88	CORELAB	--	.
21/10- 4	↳ Core Plug #3	2645.4	--	CORELAB	--	--

Wireline Log Inventory (Ingested Curves)

Wellbore	Depth Start (m)	Depth Stop (m)	Typed Curves	Auto-scaled	Ingested
21/10- 4	165.96359252929688	3460.69921875	10	0	2026-08-06 10:11:43.40336+00	View Log

Source LAS Manifest (Best Curve per Type)

Open full Manifest browser

21/10- 4

Curve Type	Best Mnemonic	Source	Depth Start (m)	Depth Stop (m)	Samples
bulk_density	RHOB	CGG Digital Well Logs	1742.694	2485.9488	4878
caliper	CALI	CGG Digital Well Logs	1742.5416	3460.6992	11224
caliper	MCAL	CGG Digital Well Logs	1900.8852	2517.9528	4050
comp_sonic	DT	CGG Digital Well Logs	246.4308	3460.0896	20867
deep_resistivity	ILD	CGG Digital Well Logs	1742.9988	3458.5656	11204
density_correction	DRHO	CGG Digital Well Logs	1742.5416	2485.7964	4878
gamma_ray	GR	CGG Digital Well Logs	165.9636	3454.6032	21513
med_resistivity	ILM	CGG Digital Well Logs	2693.0604	3459.3276	5029
micro_resistivity	MINV	CGG Digital Well Logs	1811.4264	2518.41	4397
micro_resistivity	MLL	CGG Digital Well Logs	1811.274	2518.41	4395
micro_resistivity	MNOR	CGG Digital Well Logs	1811.4264	2518.41	4397
shallow_resistivity	SFL	CGG Digital Well Logs	1742.694	2685.5928	6188
sp	SP	CGG Digital Well Logs	1741.17	3460.0896	11256

Survey Inventory (Deviation)

Open full Survey detail

Wellbore	Stations	Max MD (m)	Max TVDSS (m)	Survey File
21/10- 4	113	3470.000	3435.164	D:\BigSpatial\nsta_raw\CGG_Deviation\21-10-4 1038au_CGG-Deviation.xlsx

21/10- 4

Well Header

Wellbores (1)

Formation Tops (23)

Lithology Intervals

Interpreted Data Inventory (LR / WellStrat)

Hydrocarbon Occurrence (1)

Rock Samples (60)

Wireline Log Inventory (Ingested Curves)

Source LAS Manifest (Best Curve per Type)

Survey Inventory (Deviation)

Related Documents