FANGST GP

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• General information

  General information

  Attribute	Value
  Lithostrat. unit The lithostratigraphic unit's official name.	FANGST GP
  NPDID lithostrat. unit Norwegian Offshore Directorate's unique id for lithostratigraphic units.	38
  Level Indicates the lithostratigraphic unit's level. Legal values: GROUP, FORMATION, MEMBER.	GROUP

• Level below

  Level below

  Lithostrat. unit
  GARN FM
  ILE FM
  NOT FM

• Description

  Fangst Group
  
  Name

  Norwegian name for catch. Previous informal name was the Tomma Formation (H1-4).

  Type area

  The Halten Terrace. The group's development is illustrated by the type section of its basal unit in well 6507/11-3 (Saga Petroleum), coordinates 65°01'59.8"N, 07°30'42.34"E, from 2536m to 2412 m (Fig 4.16) . Reference wells for the group are 6407/1-2 (Statoil), coordinates 64°47'50.61"N, 07°02'23.76"E, from 3907 m to 3658.5 m (Fig 4.17) and 6507/12-1 (Saga Petroleum), coordinates 65°07'01.62"N, 07°42'42.61"E, from 2213 m to 2094 m (Fig 4.18) .

  Lithology

  The Fangst Group typically comprises three lithological units: a lower fine to medium-grained sandstone with numerous shaly interbeds, a middle mudstone, and an upper relatively massive fine to coarse-grained sandstone. Each of these units are defined as formations herein.

  Basal Stratotype

  The base of the group is defined by the base of the Ile Formation as described below.

  Lateral extent and variation

  The Fangst Group is represented in most of the Trænabanken-Haltenbanken area except on the highest parts of the Nordland Ridge where its constituent units have been eroded. Time-equivalent sandstone-dominated sequences subcrop on the sea-floor along the inner part of the Trøndelag Platform (Bugge et al. 1984) and outliers of Middle Jurassic sediments are present east of the Froan islands and beneath Beitstadfjorden in Trøndelag. The latter probably represent a continental facies equivalent to the dominantly marine Fangst Group.
  Along the southern margin of the Nordland Ridge (e.g. the Heidrun Field ) the succession is much thinner than on Halten Terrace and the threefold lithologic division is not so obvious. Further north the Trænabanken wells show a lateral facies change to marine mudstone of the Viking Group and only the lower unit of the Fangst Group (the Ile Formation ) is recognized.

  Age

  Late Toarcian to Bathonian.

  Depositional environment

  Shallow marine to coastal/deltaic facies dominate sequences on the Halten Terrace. Increasing continental influence is inferred towards the Trøndelag Platform to the east, especially in the lower part of the group. Upper parts interfinger with marine shales to the northeast in the Trænabanken area.

  Correlation

  The Fangst Group corresponds generally to the Brent Group in the North Sea and to the Stø Formation on Tromsøflaket. However, the basal part of Stø Formation is older and the base of the Brent Group is slightly younger than the Fangst Group.

  Subdivision

  Although three formations are described herein it is clear that increasing knowledge will lead to the establishment of a more varied framework to reflect the lateral facies changes seen in the area.

  Source

  • Dalland, A., Worsley, D. and Ofstad, K. (eds.) 1988: A lithostratigraphic scheme for the Mesozoic and Cenozoic succession offshore mid- and northern Norway. NPD-Bulletin No. 4, 65 pp.

• Wellbores penetrating

  Wellbores penetrating

  Wellbore name	Wellbore completion date	Top depth [m]	Bottom depth [m]
  6305/12-1	18.09.1991	3685	4063
  6306/6-1	05.07.1994	1267	1282
  6306/10-1	17.12.1990	2781	2980
  6307/1-1 S	28.12.2018	2080	2109
  6406/2-1	09.04.1995	4417	4708
  6406/2-1 R	07.01.1996	4415	4706
  6406/2-2	27.03.1996	4461	4756
  6406/2-2 R	03.03.2006	4455	4750
  6406/2-3	15.04.1997	4629	4837
  6406/2-4 SR	15.02.1999	4612	4671
  6406/2-5	29.09.1997	4792	5043
  6406/2-5 A	23.02.1998	5305	5577
  6406/2-6	07.11.1998	4480	4718
  6406/2-6 A	06.07.2000	4826	5092
  6406/2-6 R	23.05.2000	4481	4719
  6406/2-7	26.12.1999	4558	4701
  6406/2-9 S	15.01.2019	4511	4700
  6406/3-1	14.08.1984	3782	4012
  6406/3-2	22.11.1986	3930	4128
  6406/3-3	26.10.1986	3939	4131
  6406/3-4	29.12.1987	4025	4224
  6406/3-5	01.06.1988	3817	4012
  6406/3-6	15.11.2002	3650	3889
  6406/3-7	19.09.2006	3985	4179
  6406/3-8	10.08.2010	3841	4041
  6406/3-10	05.04.2020	4065	4256
  6406/3-10 A	31.08.2021	4399	4585
  6406/5-1	30.04.2002	4205	4443
  6406/5-2 S	01.05.2023	4218	4427
  6406/6-1	30.12.1985	4204	4416
  6406/6-2	31.01.2007	4164	4390
  6406/6-3	09.07.2013	3802	4035
  6406/6-4 S	30.10.2015	4006	4254
  6406/6-6 A	05.01.2019	4510	4842
  6406/6-6 S	16.11.2018	4501	4792
  6406/8-1	11.04.1988	4266	4493
  6406/8-2	08.04.2007	4248	4383
  6406/9-1	02.06.2005	4415	4634
  6406/9-2	01.07.2007	4637	4856
  6406/9-3	29.09.2013	4491	4743
  6406/11-1 S	18.02.1991	3522	3722
  6407/1-2	15.05.1983	3659	3907
  6407/1-3	16.01.1984	3600	3813
  6407/1-4	23.08.1996	3675	3805
  6407/1-5 S	21.05.2012	3811	4024
  6407/1-6 S	24.01.2013	3914	4195
  6407/1-8 S	28.10.2020	3437	3570
  6407/2-1	06.08.1982	2939	3072
  6407/2-2	31.07.1983	2461	2602
  6407/2-3	23.01.1987	2427	2581
  6407/2-4	31.08.2009	2892	3001
  6407/2-5 S	02.09.2009	2750	2926
  6407/3-1 S	08.05.2011	2622	2928
  6407/3-2 S	05.09.2019	2000	2178
  6407/4-1	15.11.1985	3890	4106
  6407/4-2	13.04.2011	4008	4230
  6407/5-1	04.03.1988	4205	4306
  6407/5-2 S	04.09.2011	3141	3340
  6407/6-1	26.10.1984	1856	2091
  6407/6-3	16.02.1987	2461	2639
  6407/6-4	13.12.1990	2651	2881
  6407/6-5	27.12.1999	2381	2558
  6407/6-6	05.02.2008	2110	2270
  6407/6-7 S	27.05.2009	2777	2893
  6407/7-1 S	07.04.1986	2759	2773
  6407/7-2	21.01.1987	2668	2712
  6407/7-2 R	30.04.1990	2670	2714
  6407/7-3	18.05.1988	2807	2867
  6407/7-4	28.03.1989	2860	2896
  6407/7-5	15.02.1991	3154	3207
  6407/7-6	16.12.2000	3407	3558
  6407/7-7 S	20.09.2007	3346	3466
  6407/7-8	14.09.2008	4330	4563
  6407/7-8 A	05.11.2008	4372	4662
  6407/7-9 S	20.09.2016	3537	3738
  6407/8-3	27.05.1997	1666	1805
  6407/8-4 S	21.05.2008	2212	2422
  6407/8-5 A	13.06.2009	2253	2458
  6407/8-5 A	13.06.2009	3014	3194
  6407/8-5 S	26.05.2009	2253	2488
  6407/8-6	20.10.2013	2789	2831
  6407/8-6 A	09.12.2013	2884	3124
  6407/8-7	12.05.2015	2417	2540
  6407/9-1	07.09.1984	1673	1783
  6407/9-2	02.02.1985	1702	1802
  6407/9-3	28.07.1985	1685	1797
  6407/9-4	10.09.1985	1660	1767
  6407/9-5	13.11.1985	1733	1820
  6407/9-6	13.03.1986	1660	1775
  6407/9-6 R	30.05.1993	1660	1775
  6407/9-7	25.05.1988	1714	1926
  6407/9-8	22.09.1992	1730	2006
  6407/9-9	06.07.1999	1700	1744
  6407/9-10	23.06.2003	1665	1800
  6407/9-12	08.11.2019	1725	1775
  6407/9-13	14.02.2022	2136	2239
  6407/10-1	19.06.1987	2702	2868
  6407/10-2	23.06.1990	3327	3479
  6407/12-1	15.07.1999	1763	1805
  6407/12-3	02.06.2010	1828	1968
  6408/4-1	18.10.1988	1825	2015
  6506/6-1	07.12.2000	4961	5095
  6506/9-1	15.09.2009	5212	5358
  6506/9-2 S	28.04.2010	4332	4471
  6506/9-3	27.08.2013	4237	4386
  6506/9-4 A	13.07.2018	4290	4420
  6506/9-4 S	27.04.2018	4520	4662
  6506/11-1	31.03.1988	4136	4363
  6506/11-2	26.10.1991	4229	4421
  6506/11-3	02.10.1992	4169	4350
  6506/11-4 S	06.06.1996	4512	4726
  6506/11-5 S	10.11.1996	4213	4399
  6506/11-6	22.08.1998	4651	4896
  6506/11-7	27.07.2001	4578	4709
  6506/11-8	16.07.2006	4623	4798
  6506/11-9 S	03.09.2012	4716	4970
  6506/11-10	17.04.2018	4225	4517
  6506/11-11 S	28.10.2019	4141	4357
  6506/12-1	06.02.1985	3974	4107
  6506/12-3	17.07.1985	3822	3997
  6506/12-4	13.08.1985	3980	4116
  6506/12-5	27.03.1986	3948	4138
  6506/12-6	02.08.1986	4234	4410
  6506/12-7	12.08.1987	4396	4556
  6506/12-8	30.08.1988	3875	4065
  6506/12-9 S	10.09.1993	4379	4533
  6506/12-10	26.06.1995	4545	4723
  6506/12-10 A	11.12.1995	5246	5416
  6506/12-11 S	07.09.1996	4731	4901
  6506/12-11 SR	01.02.1997	4731	4901
  6506/12-12 A	01.09.2009	4769	4990
  6506/12-12 S	06.08.2009	4769	4991
  6507/2-1	29.09.1986	3858	3929
  6507/2-2	16.03.1992	3673	3720
  6507/2-5 S	14.09.2019	4099	4150
  6507/2-6	14.07.2022	4611	4748
  6507/3-1	26.10.1990	3608	3723
  6507/3-2	27.04.1997	1200	1210
  6507/3-3	25.03.1999	3364	3478
  6507/3-3 A	06.05.1999	3789	4147
  6507/3-3 B	16.06.1999	3792	4110
  6507/3-4	30.04.2004	3725	3856
  6507/3-5 S	08.05.2008	3960	4063
  6507/3-6	23.06.2009	1291	1319
  6507/3-7	22.07.2009	3545	3639
  6507/3-8	15.12.2009	2693	2789
  6507/3-10	16.08.2013	3272	3333
  6507/3-11 S	15.08.2015	2167	2260
  6507/3-12	28.02.2017	3295	3396
  6507/3-15	11.08.2022	1938	1988
  6507/3-16	21.08.2022	1650	1666
  6507/4-2 S	19.05.2021	4262	4423
  6507/5-1	03.05.1998	3380	3517
  6507/5-2	23.09.1999	3614	3717
  6507/5-4	15.04.2001	3513	3632
  6507/5-4 A	03.06.2001	3720	3847
  6507/5-5	14.02.2002	3648	3774
  6507/5-7	24.06.2014	1322	1356
  6507/5-9 A	15.10.2019	2108	2156
  6507/5-9 S	27.09.2019	2033	2073
  6507/6-2	16.07.1991	3727	3853
  6507/6-3	24.11.2008	1430	1490
  6507/7-1	01.12.1984	4338	4478
  6507/7-2	10.06.1985	2203	2217
  6507/7-3	18.09.1985	2368	2434
  6507/7-4	13.01.1986	2449	2540
  6507/7-5	06.03.1986	2353	2424
  6507/7-5 A	05.04.1986	2555	2583
  6507/7-6	06.09.1986	2145	2159
  6507/7-8	02.08.1987	2436	2497
  6507/7-10	29.10.1993	2507	2563
  6507/7-11 S	14.08.1997	3458	3558
  6507/7-14 S	26.09.2010	4219	4378
  6507/7-15 S	02.05.2012	4267	4410
  6507/7-16 S	18.12.2019	2967	3090
  6507/8-1	09.12.1986	2248	2324
  6507/8-3	20.09.1988	1358	1402
  6507/8-5	16.03.1991	1827	1900
  6507/8-6	09.10.1993	2096	2147
  6507/8-7	31.01.2004	2820	2900
  6507/8-10 S	23.04.2020	2002	2007
  6507/10-1	31.10.1982	2881	2994
  6507/10-2 S	10.02.2014	2655	2750
  6507/11-1	10.12.1981	2358	2410
  6507/11-2	30.05.1982	1948	2040
  6507/11-3	15.08.1985	2412	2536
  6507/11-4	22.06.1987	2677	2866
  6507/11-5 S	28.10.1997	2484	2624
  6507/11-6	08.07.2001	3030	3160
  6507/11-8	03.07.2007	2416	2519
  6507/11-9	18.04.2008	2597	2730
  6507/11-10	16.02.2010	2086	2195
  6507/11-11	01.07.2015	2845	2900
  6507/12-1	26.10.1980	2094	2213
  6507/12-2	24.11.1981	1922	2007
  6507/12-3	13.09.1985	1972	2098
  6508/1-1 S	29.08.1999	2351	2503
  6508/5-1	24.05.1987	1710	1824
  6510/2-1	10.10.1997	1543	1722
  6510/2-1 R	21.12.1997	1543	1722
  6607/12-2 S	25.10.2011	3610	3753
  6607/12-3	26.12.2012	3946	4113
  6607/12-4	13.10.2020	3698	3787
  6608/10-1	29.05.1989	3061	3164
  6608/10-2	29.01.1992	2578	2659
  6608/10-3	11.03.1993	2574	2657
  6608/10-3 R	17.08.1995	2574	2657
  6608/10-4	06.03.1994	2567	2617
  6608/10-5	06.08.1995	2735	2756
  6608/10-6	14.05.2000	1859	1873
  6608/10-6 R	02.12.2000	1859	1873
  6608/10-6 R2	29.08.2001	1854	1868
  6608/10-7	23.05.2001	2007	2018
  6608/10-8	12.04.2002	2348	2391
  6608/10-8 A	26.04.2002	2531	2615
  6608/10-9	18.02.2003	2188	2222
  6608/10-10	07.08.2003	2462	2504
  6608/10-11 S	15.08.2006	3480	3638
  6608/10-12	21.12.2008	2738	2770
  6608/10-12 A	25.01.2009	2885	2934
  6608/10-14 S	01.04.2010	2504	2557
  6608/10-15	12.09.2013	1905	1934
  6608/10-16	13.06.2014	3653	3761
  6608/11-2	24.11.2000	1705	1736
  6608/11-3	15.12.2002	1477	1517
  6608/11-6	06.08.2008	1551	1601
  6608/11-8	21.06.2013	1780	1823
  6608/11-9	05.08.2019	1662	1700
  6609/10-2	03.10.2009	1969	2006
  6610/3-1 R	11.12.1993	3705	3730
  6610/3-1 R2	07.10.1996	3707	3732
  6610/7-1	19.06.1983	2606	2679
  6610/10-1	03.02.2013	2360	2514

• Wellbores with cores

  Wellbores with cores

  Wellbore name	Wellbore completion date	Core length [m]
  6305/12-1	18.09.1991	0
  6306/10-1	17.12.1990	8
  6406/2-1	09.04.1995	113
  6406/2-2	27.03.1996	146
  6406/2-3	15.04.1997	143
  6406/2-4 SR	15.02.1999	12
  6406/2-5	29.09.1997	246
  6406/2-5 A	23.02.1998	170
  6406/2-6	07.11.1998	27
  6406/2-7	26.12.1999	58
  6406/3-1	14.08.1984	63
  6406/3-2	22.11.1986	181
  6406/3-3	26.10.1986	30
  6406/3-4	29.12.1987	154
  6406/3-5	01.06.1988	19
  6406/3-8	10.08.2010	83
  6406/3-10 A	31.08.2021	133
  6406/5-1	30.04.2002	73
  6406/5-2 S	01.05.2023	36
  6406/6-1	30.12.1985	28
  6406/6-6 S	16.11.2018	27
  6406/8-1	11.04.1988	123
  6406/9-1	02.06.2005	41
  6406/9-2	01.07.2007	28
  6406/9-3	29.09.2013	27
  6406/11-1 S	18.02.1991	95
  6407/1-2	15.05.1983	57
  6407/1-3	16.01.1984	106
  6407/1-4	23.08.1996	60
  6407/1-5 S	21.05.2012	48
  6407/2-1	06.08.1982	15
  6407/2-2	31.07.1983	96
  6407/2-3	23.01.1987	143
  6407/2-5 S	02.09.2009	82
  6407/4-1	15.11.1985	145
  6407/4-2	13.04.2011	54
  6407/5-1	04.03.1988	15
  6407/6-1	26.10.1984	17
  6407/6-3	16.02.1987	115
  6407/6-4	13.12.1990	28
  6407/6-5	27.12.1999	68
  6407/6-6	05.02.2008	52
  6407/6-7 S	27.05.2009	1
  6407/7-1 S	07.04.1986	12
  6407/7-2	21.01.1987	25
  6407/7-3	18.05.1988	15
  6407/7-4	28.03.1989	19
  6407/7-5	15.02.1991	39
  6407/7-7 S	20.09.2007	27
  6407/7-8	14.09.2008	11
  6407/7-9 S	20.09.2016	55
  6407/8-4 S	21.05.2008	54
  6407/8-6 A	09.12.2013	39
  6407/9-1	07.09.1984	10
  6407/9-2	02.02.1985	4
  6407/9-4	10.09.1985	39
  6407/9-6	13.03.1986	28
  6407/9-8	22.09.1992	29
  6407/10-1	19.06.1987	79
  6407/10-2	23.06.1990	11
  6506/6-1	07.12.2000	3
  6506/9-1	15.09.2009	64
  6506/9-2 S	28.04.2010	82
  6506/9-3	27.08.2013	133
  6506/9-4 A	13.07.2018	46
  6506/9-4 S	27.04.2018	98
  6506/11-1	31.03.1988	67
  6506/11-2	26.10.1991	112
  6506/11-3	02.10.1992	51
  6506/11-6	22.08.1998	224
  6506/11-7	27.07.2001	53
  6506/11-8	16.07.2006	108
  6506/11-9 S	03.09.2012	145
  6506/11-10	17.04.2018	28
  6506/11-11 S	28.10.2019	41
  6506/12-1	06.02.1985	131
  6506/12-3	17.07.1985	137
  6506/12-4	13.08.1985	29
  6506/12-5	27.03.1986	168
  6506/12-6	02.08.1986	85
  6506/12-7	12.08.1987	44
  6506/12-8	30.08.1988	151
  6506/12-9 S	10.09.1993	72
  6506/12-10	26.06.1995	108
  6507/2-2	16.03.1992	15
  6507/2-5 S	14.09.2019	42
  6507/2-6	14.07.2022	64
  6507/3-1	26.10.1990	76
  6507/3-3	25.03.1999	76
  6507/3-4	30.04.2004	89
  6507/3-5 S	08.05.2008	53
  6507/3-7	22.07.2009	93
  6507/3-8	15.12.2009	65
  6507/3-10	16.08.2013	59
  6507/3-12	28.02.2017	83
  6507/3-15	11.08.2022	39
  6507/4-2 S	19.05.2021	64
  6507/5-1	03.05.1998	122
  6507/5-2	23.09.1999	91
  6507/5-4	15.04.2001	119
  6507/5-5	14.02.2002	81
  6507/5-9 S	27.09.2019	31
  6507/6-2	16.07.1991	12
  6507/7-1	01.12.1984	38
  6507/7-3	18.09.1985	62
  6507/7-4	13.01.1986	89
  6507/7-5	06.03.1986	54
  6507/7-5 A	05.04.1986	22
  6507/7-6	06.09.1986	13
  6507/7-8	02.08.1987	59
  6507/7-10	29.10.1993	26
  6507/7-11 S	14.08.1997	27
  6507/7-14 S	26.09.2010	55
  6507/7-15 S	02.05.2012	104
  6507/7-16 S	18.12.2019	109
  6507/8-1	09.12.1986	42
  6507/8-3	20.09.1988	8
  6507/8-5	16.03.1991	22
  6507/10-1	31.10.1982	6
  6507/10-2 S	10.02.2014	22
  6507/11-2	30.05.1982	32
  6507/11-3	15.08.1985	106
  6507/11-4	22.06.1987	28
  6507/11-5 S	28.10.1997	134
  6507/11-6	08.07.2001	28
  6507/11-8	03.07.2007	67
  6507/11-9	18.04.2008	20
  6507/12-3	13.09.1985	8
  6508/5-1	24.05.1987	12
  6607/12-2 S	25.10.2011	53
  6607/12-3	26.12.2012	54
  6608/10-1	29.05.1989	28
  6608/10-2	29.01.1992	63
  6608/10-3	11.03.1993	65
  6608/10-4	06.03.1994	49
  6608/10-6	14.05.2000	15
  6608/10-7	23.05.2001	11
  6608/10-8	12.04.2002	20
  6608/10-14 S	01.04.2010	8
  6610/3-1 R	11.12.1993	4
  6610/7-1	19.06.1983	18