Well Data Manager / Well Summary / 9/18b- 11

9/18b- 11

Decommissioned

Well Header

Well No

9/18b- 11

NSTA DEN No

3437

Well Name

Drill Seq No

Quadrant / Block

9 / 18 b

Surface Location

59.354899, 1.552434

Source Datum

ED50

Subsea Well

Platform

Slot No

Operator

NEO NEXT+ ENERGY E&P NORTH SEA UK LIMITED

Original Operator

Sub Area Operator

NEO NEXT+ ENERGY E&P NORTH SEA UK LIMITED

Licence No

P496

Licence Type

Production

Spud Date

1988-04-21

Source File

nsta_feature_service

Imported

2026-05-22 15:28

Wellbores (2)

9/18b- 11 Original

Abandoned Phase 3 View Log Interpreted Data Survey

Current Intent

Appraisal

Original Intent

Appraisal

Flow Class

Oil Well

Dev Type

Convention

Primary Target

Well Seq

WB1

Datum Type

Kelly Bushing

Datum Elev (m)

24.994

Ground Elev (m)

Water Depth (m)

113.08

TD MD (m)

1932.460

TD TVDSS (m)

1907.460

TD Datum Depth (m)

24.994

TD Datum Type

Kelly Bushing

Spud Date

1988-04-21

TD Reached

1988-05-10

Completion Date

1988-05-15

Release Date

1992-05-15

9/18b- 11Z Sidetrack Z parent: 9/18b- 11

Abandoned Phase 3 View Log Interpreted Data Survey

Current Intent

Appraisal

Original Intent

Appraisal

Flow Class

Gas and Oil Well

Dev Type

Convention

Primary Target

Well Seq

WB2

Datum Type

Kelly Bushing

Datum Elev (m)

24.994

Ground Elev (m)

Water Depth (m)

113.08

TD MD (m)

2080.260

TD TVDSS (m)

1864.157

TD Datum Depth (m)

24.994

TD Datum Type

Kelly Bushing

Spud Date

1988-05-16

TD Reached

1988-06-05

Completion Date

1988-06-08

Release Date

1992-06-08

Formation Tops (13)

Wellbore	Formation	Era	MD (m)	TVDSS (m)	Provider
9/18b- 11	Upper Mousa	Cenozoic	986.000	960.990	Ternan
	Frigg Sst		1620.000	1594.727	Ternan
	Odin Sst	Cenozoic	1724.000	1698.706	Ternan
	Odin Sst	Cenozoic	1724.000	1698.706	Ternan
	Hermod Sst		1853.000	1827.677	Ternan
9/18b- 11Z	Siltstone Unit		1163.000	1134.914	BGS LithoStrat Upper
	Frigg Formation		1645.000	1536.149	BGS LithoStrat Upper
	Frigg Sand Member		1725.000	1595.162	BGS LithoStrat Upper
	Balder Claystone Member	Palaeozoic	1763.000	1623.230	BGS LithoStrat Upper
	Balder Tuff Member		1834.000	1676.201	BGS LithoStrat Upper
	Gryphon Sand		1849.000	1687.461	BGS LithoStrat Upper
	Unknown		1929.000	1747.798	BGS LithoStrat Upper
	Sele	Mesozoic	2001.000	1802.891	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
9/18b- 11	0	0	0	9	5	0	4	1	0	View
9/18b- 11Z	0	0	0	8	8	0	0	1	0	View

Hydrocarbon Occurrence (1)

Wellbore	Category	Code	Formation / Litho	Top MD (m)	Base MD (m)	Notes
9/18b- 11	Oil	O	GYPH	1723.644	--	111 m thick

Rock Samples (6)

Wellbore	Sample	Top MD (m)	Base MD (m)	Key Lab Results	Comments	Notes
9/18b- 11	Cuttings	451.1	1932.43	--	--	.
9/18b- 11	Core #1	1727.91	1739.49	--	--	.
9/18b- 11	Core #2	1739.8	1758.39	--	--	.
9/18b- 11	Core #3	1758.39	1775.76	--	--	.
9/18b- 11	Core #4	1776.98	1790.85	--	--	.
9/18b- 11Z	Cuttings	963.17	2081.78	--	--	sidetrack .

Wireline Log Inventory (Ingested Curves)

Wellbore	Depth Start (m)	Depth Stop (m)	Typed Curves	Auto-scaled	Ingested
9/18b- 11	133.9595947265625	1929.8411865234375	14	0	2026-08-06 15:55:54.156962+00	View Log
9/18b- 11Z	883.6151733398438	2072.487548828125	10	0	2026-08-06 19:01:43.723216+00	View Log

Source LAS Manifest (Best Curve per Type)

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9/18b- 11

Curve Type	Best Mnemonic	Source	Depth Start (m)	Depth Stop (m)	Samples
apparent_water_resistivity	RWA	Energective CorrectedLOGS	437.38800000000003	1911.096	3537
bulk_density	DEN	OGA Batch Unzipped	1370.6856	1929.8412	3670
bulk_density	CDEN	Energective CorrectedLOGS	1370.6856	1929.8412	3670
bulk_density	RHOB	CGG Digital Well Logs	1370.3808000000001	1924.3548	3636
caliper	CALI	CGG Digital Well Logs	435.86400000000003	1924.5072	6782
caliper	CLD	Energective CorrectedLOGS	440.89320000000004	1918.7160000000001	6794
comp_sonic	DT	CGG Digital Well Logs	435.86400000000003	1912.0104000000001	9440
comp_sonic	DTC	Energective CorrectedLOGS	437.38800000000003	1912.6200000000001	9678
deep_resistivity	IDPH	CGG Digital Well Logs	1722.2724	1801.6728	522
deep_resistivity	RES_DEP	OGA Batch Unzipped	437.38800000000003	1926.7932	9774
deep_resistivity	ILD	Energective CorrectedLOGS	437.84520000000003	1912.0104000000001	9674
density_correction	DRHO	CGG Digital Well Logs	1370.3808000000001	1924.2024000000001	3635
density_correction	CDRH	Energective CorrectedLOGS	1370.6856	1929.5364000000002	3668
density_correction	DENC	OGA Batch Unzipped	1370.6856	1929.8412	3670
gamma_ray	CGR	CGG Digital Well Logs	1370.6856	1915.2108	3574
gamma_ray	SGR	CGG Digital Well Logs	1370.6856	1915.2108	3574
gamma_ray	GRI	Energective CorrectedLOGS	133.9596	1918.2588	11707
gamma_ray	GR	CGG Digital Well Logs	133.8072	1915.3632	11691
med_resistivity	IMPH	CGG Digital Well Logs	1722.2724	1801.9776000000002	524
med_resistivity	ILM	Energective CorrectedLOGS	437.23560000000003	1922.9832000000001	9750
med_resistivity	RES_MED	OGA Batch Unzipped	437.23560000000003	1927.0980000000002	9777
neutron_por	NPHI	CGG Digital Well Logs	1370.3808000000001	1919.6304	3605
neutron_por	CNEU	Energective CorrectedLOGS	1370.6856	1922.526	3622
neutron_por	NEU	OGA Batch Unzipped	1370.6856	1927.5552	3655
pef	CPEF	Energective CorrectedLOGS	1372.6668	1928.3172000000002	3642
pef	PEF	CGG Digital Well Logs	1370.3808000000001	1924.2024000000001	3635
porosity	POR	Energective CorrectedLOGS	437.38800000000003	1918.2588	9718
shallow_resistivity	SFLU	CGG Digital Well Logs	437.54040000000003	931.926	3245
sp	SP	Energective CorrectedLOGS	831.4944	1927.2504000000001	7191
thorium	THOR	CGG Digital Well Logs	1370.6856	1915.2108	3574
tvdss	SS	Energective CorrectedLOGS	133.8072	2133.9048000000003	13125
uranium	URAN	CGG Digital Well Logs	1370.6856	1915.2108	3574
vshale	VSGR	Energective CorrectedLOGS	145.542	1918.2588	11631
vshale	VSH	Energective CorrectedLOGS	145.542	1918.2588	11633
water_sat	SW	Energective CorrectedLOGS	437.38800000000003	1918.2588	9718
water_sat_xo	SXO	Energective CorrectedLOGS	437.38800000000003	1918.2588	9718

9/18b- 11Z

Curve Type	Best Mnemonic	Source	Depth Start (m)	Depth Stop (m)	Samples
bulk_density	CDEN	Energective CorrectedLOGS	1370.6856	2004.2124000000001	4158
bulk_density	DEN	OGA Batch Unzipped	1370.6856	1993.2396	4086
bulk_density	RHOB	CGG Digital Well Logs	1370.6856	1997.202	4112
caliper	CALI	CGG Digital Well Logs	1370.6856	1997.202	4112
caliper	CLD	Energective CorrectedLOGS	1370.6856	1997.8116	4116
comp_sonic	DTC	Energective CorrectedLOGS	922.4772	1991.4108	7011
comp_sonic	DT	CGG Digital Well Logs	922.4772	1991.5632	7006
deep_resistivity	RESD	CGG Digital Well Logs	922.4772	2077.974	7583
deep_resistivity	RES_DEP	OGA Batch Unzipped	923.8488000000001	2072.4876	7538
deep_resistivity	ILD	Energective CorrectedLOGS	923.8488000000001	2072.4876	7538
deep_resistivity	IDPH	CGG Digital Well Logs	922.4772	1997.6592	7056
density_correction	CDRH	Energective CorrectedLOGS	1370.6856	2003.9076	4156
density_correction	DRHO	CGG Digital Well Logs	1370.6856	1997.202	4112
density_correction	DENC	OGA Batch Unzipped	1370.6856	2004.2124000000001	4158
gamma_ray	CGR	CGG Digital Well Logs	1370.6856	1987.296	4047
gamma_ray	GR	CGG Digital Well Logs	883.7676	2074.926	7817
gamma_ray	SGR	CGG Digital Well Logs	1370.6856	1987.296	4047
gamma_ray	GRI	Energective CorrectedLOGS	883.6152000000001	1992.9348	7280
gamma_ray	GRLW	Energective CorrectedLOGS	1485.5952	2074.926	3868
med_resistivity	RES_MED	OGA Batch Unzipped	922.9344000000001	2013.6612	7158
med_resistivity	ILM	Energective CorrectedLOGS	922.9344000000001	2007.4128	7117
med_resistivity	IMPH	CGG Digital Well Logs	922.9344000000001	1998.4212	7058
neutron_por	NPHI	CGG Digital Well Logs	1370.6856	1991.106	4072
neutron_por	CNEU	Energective CorrectedLOGS	1370.6856	1997.0496	4111
neutron_por	NEU	OGA Batch Unzipped	1371.6000000000001	1992.63	4076
pef	CPEF	Energective CorrectedLOGS	1370.6856	2004.2124000000001	4158
pef	PEF	CGG Digital Well Logs	1370.6856	1997.202	4112
potassium	POTA	CGG Digital Well Logs	1370.6856	1987.296	4047
shear_sonic	DTS	Energective CorrectedLOGS	1807.3116	1940.6616000000001	696
sp	SP	Energective CorrectedLOGS	1843.8876	1895.5512	340
thorium	THOR	CGG Digital Well Logs	1370.6856	1987.296	4047
tvdss	SS	Energective CorrectedLOGS	883.6152000000001	2078.1264	7839
uranium	URAN	CGG Digital Well Logs	1370.6856	1987.296	4047

Survey Inventory (Deviation)

Open full Survey detail

Wellbore	Stations	Max MD (m)	Max TVDSS (m)	Survey File
9/18b- 11	56	1932.432	1907.098	D:\BigSpatial\nsta_raw\CGG_Deviation\9-18b-11 6204bl-CGG_Deviation.xlsx
9/18b- 11Z	69	2080.260	1864.107	D:\BigSpatial\nsta_raw\CGG_Deviation\9-18b-11Z 17178ac-CGG_Deviation.xlsx

9/18b- 11

Well Header

Wellbores (2)

Formation Tops (13)

Lithology Intervals

Interpreted Data Inventory (LR / WellStrat)

Hydrocarbon Occurrence (1)

Rock Samples (6)

Wireline Log Inventory (Ingested Curves)

Source LAS Manifest (Best Curve per Type)

Survey Inventory (Deviation)

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