LUNDE FM

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• General information

  General information

  Attribute	Value
  Lithostrat. unit The lithostratigraphic unit's official name.	LUNDE FM
  NPDID lithostrat. unit Norwegian Offshore Directorate's unique id for lithostratigraphic units.	97
  Level Indicates the lithostratigraphic unit's level. Legal values: GROUP, FORMATION, MEMBER.	FORMATION
  Lithostrat. unit, parent The parent lithostratigraphic unit's official name. See also level. Will be empty if Level = GROUP.	HEGRE GP

• Level below

  Level below

  Lithostrat. unit

• Description

  Lunde Formation
  
  Name

  From the bird (English: puffin) of the same name.

  Well type section

  Norwegian well 33/12-2 (Mobil) from 2951 m to 4048 m, coord N 61°13'31.38", E 01°51'25.97", (Fig 3.4) .

  Well reference section

  UK well 211/29-5 (Shell) from 3003 m to 4055 m, coord N 61°04'43.0", E 01°45'46.5" (Fig 3.5) .

  Thickness

  1079 m in the type well, 1052 m in the reference well.

  Lithology

  The formation is an interbedded sequence of very fine to very coarse-grained sandstones (2 to 10 m thick), claystones, marls and shales.
  The sandstones are mainly white, pink or grey and cemented to a variable degree with kaolinite, anhydrite and carbonate. Fine-grained sandstones from the upper portion of the formation (core data from UK well 211/13-1) display small scale ripple cross stratification, bioturbation and incorporated mud clasts and mud balls. This part of the formation may also have small fining upward sequences.
  The interbedded argillaceous units are dominantly red-brown claystones, siltstones and shales with thin limestones (possibly caliche). Tuff horizons are present in the lower half of the formation in the Statfjord Field area. The lowermost part of the Lunde Formation consists in the Statfjord Field area (and westward into UK waters), of a sequence which is very uniform both in lithology and thickness. It is around 300 thick and consists mainly of brick red to red brown calcareous claystones grading to marls which are normally soft, silty and micaceous. This lower sequence is easily recognisable and may eventually be separated out and assigned formation status.

  Boundaries

  The base of the formation is picked at the base of the first thick claystone unit. This boundary is marked by sonic and gamma ray log breaks. The alternating lithologies of the Lunde Formation result in an irregular gamma ray response. On structural highs the top of the formation is represented by a hiatus, with Jurassic or younger strata resting on the Triassic sequence. Where the Statfjord Formation is present, the upper boundary of the Lunde Formation is placed at the change to the relatively massive clean standstone of the overlying Statfjord Formation . In the Statfjord Field area, this transition often occurs via a coarsening upward unit, clearly defined on gamma ray and sonic logs. The base of this unit is the top of the Lunde Formation. (See also the description of the Statfjord Formation ).

  Distribution

  The formation is assumed to be present throughout the northern North Sea Area, although major parts may be missing on structural highs owing to erosion or non-deposition.

  Age

  Late Triassic, possibly Norian to early Rhaetian age.

  Depositional environment

  The Lunde Formation is dominantly of continental origin, deposited in lacustrine and fluvial environments.

  Source

  • Vollset, J. and Doré, A. G. (eds.) 1984: A revised Triassic and Jurassic lithostratigraphic nomenclature for the Norwegian North Sea. NPD-Bulletin No. 3, 53 pp.

• Wellbores penetrating

  Wellbores penetrating

  Wellbore name	Wellbore completion date	Top depth [m]	Bottom depth [m]
  29/6-1	09.05.1982	4786	4832
  30/3-2 R	16.02.1981	3298	3308
  30/3-7 S	12.12.1995	5322	5581
  30/5-3 S	12.04.2009	3396	3809
  30/6-1	22.09.1979	3003	3175
  30/6-9	16.12.1982	3389	3476
  30/6-9 R	12.05.1990	3387	3476
  30/6-24 S	06.12.1991	3940	3986
  30/6-28 S	29.03.2012	2754	3960
  30/9-3 A	20.05.1984	4249	4300
  30/9-24	17.10.2009	3718	3767
  31/4-8	11.05.1986	2438	2611
  31/11-1 S	28.06.2021	3120	3284
  32/2-1	01.07.2008	1247	1300
  32/4-3 S	26.10.2019	1847	2017
  33/2-2 S	10.06.2015	2946	3113
  33/5-1	18.10.1979	2692	3220
  33/5-2	18.11.1981	4455	4520
  33/6-1	06.07.1979	3862	3900
  33/6-3 S	24.07.2012	4377	4444
  33/12-1	18.04.1974	2960	3060
  33/12-2	23.08.1974	2951	3749
  33/12-5	21.02.1976	2735	3747
  34/2-3	13.08.1981	3344	3742
  34/2-5 S	31.03.2018	3568	3680
  34/4-1	16.12.1979	2508	2834
  34/4-2	24.05.1980	2697	3599
  34/4-3	30.03.1982	4410	4460
  34/4-4	03.02.1983	2425	3143
  34/4-5	06.04.1984	3599	3917
  34/4-6	27.03.1986	2577	3153
  34/4-7	12.05.1987	2502	2950
  34/4-8	21.06.1994	2913	3110
  34/4-9 S	15.02.1997	2513	3440
  34/4-11	10.01.2010	4224	4327
  34/4-12 A	18.02.2010	2563	2761
  34/4-12 S	25.01.2010	2738	3066
  34/4-13 S	02.01.2011	4905	5010
  34/4-14 S	19.05.2015	4754	4822
  34/6-1 S	28.08.2002	4313	4360
  34/6-2 S	05.11.2012	4252	4335
  34/7-1	24.07.1984	2392	2905
  34/7-2	10.10.1984	2271	2475
  34/7-3	02.01.1985	2513	3414
  34/7-4	16.01.1985	2628	3115
  34/7-5	16.03.1985	3010	3146
  34/7-6	30.05.1985	2654	3539
  34/7-7	16.12.1985	2678	3526
  34/7-8	11.04.1986	2373	2766
  34/7-9	12.06.1986	2443	3240
  34/7-10	29.10.1986	2683	3000
  34/7-12	17.12.1987	2763	2784
  34/7-13	13.04.1988	2962	2994
  34/7-16 R	15.10.1990	2945	2980
  34/7-16 R2	05.07.1994	2944	2979
  34/7-17	07.04.1991	3085	3115
  34/7-20	27.08.1992	3128	3177
  34/7-34	10.03.2009	2584	2701
  34/7-34 A	20.03.2009	2972	3022
  34/8-1	08.03.1986	3417	3610
  34/8-2	17.11.1986	3051	3240
  34/8-4 A	27.05.1992	3143	3567
  34/8-4 AR	07.03.2003	3151	3574
  34/8-4 S	09.06.1991	2950	3947
  34/8-5	01.04.1991	3484	3540
  34/8-7	16.07.1992	5208	5460
  34/8-7 R	10.02.1993	5208	5460
  34/8-8	24.08.1992	3474	3625
  34/8-8 R	09.03.1993	3474	3624
  34/8-9 S	28.12.1992	3245	3530
  34/8-10 S	09.12.1993	3125	3470
  34/8-12 S	09.12.2001	3253	3347
  34/8-13 S	26.06.2009	4282	4442
  34/8-16 S	15.11.2015	3116	3437
  34/8-17 S	14.03.2014	4485	4587
  34/8-18 S	22.02.2019	6001	6068
  34/10-1	08.09.1978	2367	2460
  34/10-2	08.12.1978	3540	3729
  34/10-3	07.06.1979	2715	2802
  34/10-3 R	10.10.1987	2712	2799
  34/10-4	15.10.1979	2481	2600
  34/10-5	02.01.1980	2764	2780
  34/10-7	23.03.1980	2180	2250
  34/10-7 R	14.07.1983	2177	2247
  34/10-11	05.03.1981	2089	2155
  34/10-16	11.04.1983	4010	4042
  34/10-16 R	27.09.1983	4007	4039
  34/10-30	12.05.1986	3375	3785
  34/10-32	13.07.1987	3538	3753
  34/10-32 R	10.08.1987	3538	3742
  34/10-38 S	29.05.1995	3844	3940
  34/10-43 S	11.04.2001	4370	4950
  34/10-44 S	08.07.2001	4200	4865
  34/10-48 A	15.02.2005	3657	4645
  34/10-48 S	22.12.2004	3657	4645
  34/10-55 S	26.03.2017	7390	7811
  35/1-1	18.07.2002	4476	4540
  35/9-6 S	07.12.2010	3710	3740
  6201/11-1	06.11.1987	2678	3532
  6201/11-2	11.03.1991	3697	3726
  6201/11-3 R	20.10.2012	2703	2783

• Wellbores with cores

  Wellbores with cores

  Wellbore name	Wellbore completion date	Core length [m]
  30/3-2 R	16.02.1981	9
  30/5-3 S	12.04.2009	55
  31/4-8	11.05.1986	13
  33/2-2 S	10.06.2015	30
  33/5-1	18.10.1979	10
  34/2-3	13.08.1981	39
  34/4-1	16.12.1979	90
  34/4-4	03.02.1983	182
  34/4-5	06.04.1984	48
  34/4-6	27.03.1986	54
  34/4-7	12.05.1987	183
  34/4-9 S	15.02.1997	208
  34/4-12 A	18.02.2010	54
  34/4-12 S	25.01.2010	52
  34/4-13 S	02.01.2011	11
  34/7-1	24.07.1984	223
  34/7-3	02.01.1985	52
  34/7-6	30.05.1985	39
  34/7-7	16.12.1985	103
  34/7-8	11.04.1986	5
  34/7-9	12.06.1986	243
  34/8-1	08.03.1986	9
  34/8-4 A	27.05.1992	79
  34/8-4 S	09.06.1991	327
  34/8-7	16.07.1992	8
  34/8-8	24.08.1992	22
  34/8-10 S	09.12.1993	32
  34/8-16 S	15.11.2015	53
  34/10-30	12.05.1986	189
  34/10-32	13.07.1987	16
  6201/11-1	06.11.1987	151
  6201/11-2	11.03.1991	14
  6201/11-3 R	20.10.2012	7