BRENT GP

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• General information

  General information

  Attribute	Value
  Lithostrat. unit The lithostratigraphic unit's official name.	BRENT GP
  NPDID lithostrat. unit Norwegian Offshore Directorate's unique id for lithostratigraphic units.	16
  Level Indicates the lithostratigraphic unit's level. Legal values: GROUP, FORMATION, MEMBER.	GROUP

• Level below

  Level below

  Lithostrat. unit
  BROOM FM
  ETIVE FM
  NESS FM
  OSEBERG FM
  RANNOCH FM
  TARBERT FM

• Description

  Brent Group
  
  Name

  Named by Deegan and Scull (1977). According to Norwegian usage, the unit earlier had formation status and the type well was UK well 211/29-3 (Shell). In this report the unit is given group status, also in the Norwegian sector.

  Type area

  The type area is the East Shetland Basin. The following wells are used to illustrate the Brent Group: UK well 211/29-3 (Shell), Norwegian wells 33/9-1 (Mobil), 30/6-7 (Norsk Hydro) and 31/4-4 (Norsk Hydro).

  Thickness

  The thickness of the group varies considerably. In UK well 211/29-3 (Brent Field) it is 226.5 m, while the Norwegian well 33/9-1 in the Statfjord Field has 204 m of Brent Group sediments. Wells used to illustrate the group on and around the Horda Platform have thicknesses between 159 m ( 30/6-7 ) and 78 m ( 31/4-4 ). Thicknesses of 200 m or more are present to the north in quadrant 35.

  Lithology

  The group consists of grey to brown sandstones, siltstones and shales with subordinate coal beds and conglomerates.

  Boundaries

  In the Brent-Statfjord area the group normally rests with a minor disconformity on the predominantly argillaceous Dunlin Group. To the west and in the southern Viking Graben it cuts down onto lower levels within the Dunlin Group . On the Horda Platform the lower boundary is either picked at the base of a "coarsening upward" log motif, with underlying marine shales, or at the base of a homogenous sandstone with a "blocky" log appearance. The upper boundary of the Brent Group may vary in nature due to post-middle Jurassic tectonism and erosion. Variable amounts of the group may be missing, particulary, towards the crests of tilted fault blocks, but the contact is nevertheless easy to pick where the sandy Brent Group is overlain by Heather Formation shales.

  Distribution

  The Brent Group is recognizable over most of the East Shetland Basin and the northern part of the Horda Platform. It passes southwards into the Vestland Group south of the Frigg Field area. The absence of the basal marine sandstones is considered to be the distinguishing feature of the Vestland Group . Northwards, the Brent Group shales out within the East Shetland Basin between 61°30' N and 62°N.

  Age

  Mainly Bajocian to Early Bathonian but including Late Toarcian to the east.

  Subdivision

  The group is divided into five formations. These are: the Broom (base), Rannoch , Etive , Ness and Tarbert (top) formations.1) According to Norwegian usage, the units earlier had a member status (Deegan and Scull, 1977). In this report it is proposed to give the units formation status also in the Norwegian sector. All formations are recognizable in the Brent-Statfjord area. However, difficulties are met when moving away from the type area. On the Horda Platform the Broom Formation appears to be absent, and the presence of the Rannoch Formation is under debate.

  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.

  Footnotes

  • 1): In addition the javascript:void(window.open('https://factpages.sodir.no/factpages/Default.aspx?nav1=strat&nav2=PageView%7CLitho%7CFormations&nav3=123&menu=No','popup','width=700,height=800,resizable=yes,scrollbars=yes')) Oseberg Formation has been defined at the base of the Brent Group in the Oseberg Field and neighbouring fields in Graue et al. (1987).

  Reference

  • Graue, E., Helland-Hansen, W., Johnsen, J., Lømo, L., Nøttvedt, A., Rønning, K., Ryseth and A., Steel, R. Advance and retreat of Brent Delta system, Norwegian North Sea. 915 - 937 in: Brooks, J. and Glennie, K. (eds.) 1987: Petroleum Geology of North West Europe.

• Wellbores penetrating

  Wellbores penetrating

  Wellbore name	Wellbore completion date	Top depth [m]	Bottom depth [m]
  25/1-10	14.09.1988	4471	4739
  25/2-23 S	01.04.2022	4578	4860
  25/5-7	23.10.2010	2685	2712
  29/3-1	15.09.1986	3523	3912
  29/6-1	09.05.1982	4205	4500
  29/9-1	24.02.1984	4387	4421
  30/2-1	12.10.1982	3675	3793
  30/2-2	04.05.1985	3935	4135
  30/2-3	05.10.1992	3792	3983
  30/2-4 S	09.08.2008	4196	4309
  30/3-1 R	26.04.1982	3761	3874
  30/3-2 R	16.02.1981	2825	2950
  30/3-3	30.05.1983	2978	3116
  30/3-4	12.06.1985	2826	2949
  30/3-4 R	18.11.2001	2828	2951
  30/3-5 S	19.06.1992	4050	4243
  30/3-6 S	06.03.1994	5214	5688
  30/3-7 A	29.01.1998	6349	6620
  30/3-7 B	04.08.1998	4272	4350
  30/3-7 B	04.08.1998	5124	5352
  30/3-7 B	04.08.1998	5514	5777
  30/3-7 BR	17.11.2001	4272	4350
  30/3-7 BR	17.11.2001	5124	5352
  30/3-7 BR	17.11.2001	5514	5777
  30/3-7 S	12.12.1995	4692	4703
  30/3-7 S	12.12.1995	4706	4930
  30/3-7 S	12.12.1995	5056	5122
  30/3-8 A	23.05.2000	4095	4654
  30/3-8 A	23.05.2000	4760	6208
  30/3-8 S	04.05.2000	4095	4486
  30/3-8 S	04.05.2000	4752	4827
  30/3-9	01.07.2000	3815	3923
  30/3-10 S	29.04.2009	3737	3752
  30/3-11 S	09.09.2022	4396	4612
  30/4-1	14.05.1979	5182	5400
  30/4-2	16.05.1980	3780	4061
  30/4-3 S	09.10.2016	4250	4583
  30/5-2	21.12.1996	3472	4041
  30/5-4 S	23.09.2022	4654	5068
  30/6-1	22.09.1979	2285	2345
  30/6-2	11.12.1979	2191	2237
  30/6-3	07.03.1980	2421	2512
  30/6-4	11.05.1981	2597	2686
  30/6-5	15.08.1981	2841	2958
  30/6-6	24.03.1982	2820	2965
  30/6-7	24.08.1982	2632	2786
  30/6-8	06.08.1982	3024	3171
  30/6-9	16.12.1982	2458	2620
  30/6-9 R	12.05.1990	2456	2618
  30/6-10	02.12.1982	2458	2575
  30/6-10 A	03.03.1983	2480	2608
  30/6-11	30.03.1983	3351	3561
  30/6-13	14.05.1983	2571	2671
  30/6-13 R	11.09.1986	2571	2671
  30/6-14	08.02.1984	2560	2589
  30/6-15	05.09.1984	2884	2902
  30/6-16	21.01.1985	2856	2868
  30/6-19	21.06.1986	2857	2989
  30/6-19 R	25.05.1994	2856	2988
  30/6-20	13.04.1986	2665	2673
  30/6-21	09.04.1987	2575	2670
  30/6-22	13.07.1988	2875	2998
  30/6-22 R	02.06.1994	2874	2997
  30/6-23	01.07.1990	2793	2902
  30/6-25 S	06.01.1999	2663	2713
  30/6-25 S	06.01.1999	2830	2918
  30/6-30	18.11.2018	3260	3447
  30/6-31 S	25.04.2020	2812	2852
  30/7-6 R	03.06.1978	3792	4057
  30/7-8	04.04.1981	4066	4287
  30/7-8 R	29.01.1982	4058	4300
  30/8-1 S	01.03.1995	3433	4123
  30/8-1 SR	01.03.1996	3433	4123
  30/8-3	05.01.1998	3252	3663
  30/8-4 S	04.02.2009	3899	4210
  30/9-1	29.01.1983	2685	2783
  30/9-2	12.07.1983	2578	2767
  30/9-2 R	07.07.1986	2578	2767
  30/9-3	26.02.1984	2677	3045
  30/9-3 A	20.05.1984	2853	3133
  30/9-4 S	30.03.1985	3295	3633
  30/9-5 S	19.07.1985	2236	2253
  30/9-6	21.04.1987	2591	2723
  30/9-7	23.12.1988	2810	3168
  30/9-8 R	25.09.1989	2788	3149
  30/9-9	06.11.1989	2294	2418
  30/9-10	21.09.1990	2784	3117
  30/9-11	19.11.1990	2384	2516
  30/9-11 A	29.12.1990	2551	2680
  30/9-12	09.05.1991	2660	2791
  30/9-12 A	04.06.1991	2869	3007
  30/9-12 AR	11.07.2002	2873	3011
  30/9-13 S	11.10.1991	3024	3452
  30/9-13 SR	17.07.2002	3028	3456
  30/9-14	14.05.1993	3060	3512
  30/9-15	05.01.1994	2249	2276
  30/9-16	08.08.1994	2718	3001
  30/9-18	11.04.1995	2646	2954
  30/9-19	22.10.1998	3093	3510
  30/9-19 A	21.12.1998	3210	3730
  30/9-20 S	11.02.2002	2806	3072
  30/9-21 A	15.06.2008	3866	4054
  30/9-21 S	30.04.2008	3774	4090
  30/9-22	10.03.2009	2867	3205
  30/9-23	21.08.2009	2717	2845
  30/9-25	20.09.2013	2945	3220
  30/9-26 S	22.11.2014	4307	4568
  30/9-27 S	25.08.2015	3656	3989
  30/9-28 S	26.02.2016	2916	3311
  30/9-B-18	25.09.1992	3683	3941
  30/9-B-18 A	23.10.1992	3601	4982
  30/10-5	01.05.1975	4583	4860
  30/10-6	09.11.1992	4666	5248
  30/11-3	14.03.1983	3435	4019
  30/11-5	09.01.1997	3249	3716
  30/11-6 S	02.07.2004	3150	3497
  30/11-7	03.02.2009	3953	4027
  30/11-7 A	25.05.2009	4007	4250
  30/11-8 A	03.07.2011	3915	4436
  30/11-8 S	20.05.2011	3529	3998
  30/11-9 A	08.01.2014	3615	4054
  30/11-9 S	13.11.2013	3269	3735
  30/11-10	26.12.2014	3445	4013
  30/11-10 A	13.02.2015	3610	3948
  30/11-11 A	07.04.2016	3796	4016
  30/11-11 S	19.03.2016	3291	3675
  30/11-12 A	20.05.2016	3962	4173
  30/11-12 S	04.05.2016	3322	3700
  30/11-13	06.06.2016	2980	3344
  30/11-14	06.07.2016	2958	3420
  30/11-14 B	23.07.2016	3634	4147
  30/12-1	07.03.1994	2903	3133
  30/12-2	27.08.2019	3040	3203
  31/1-1	15.02.2008	2415	2634
  31/1-2 A	29.01.2021	3586	3761
  31/1-2 S	12.01.2021	3205	3364
  31/2-1	09.11.1979	1881	1985
  31/2-1 R	09.11.1981	1882	1986
  31/2-2 R	06.10.1980	1985	2070
  31/2-3	20.07.1980	1812	1902
  31/2-4 R	06.04.1981	1784	1902
  31/2-4 R2	12.11.1982	1784	1902
  31/2-5	21.12.1980	1957	2070
  31/2-5 R	20.07.1981	1950	2063
  31/2-5 R2	22.04.1984	1950	2063
  31/2-8	18.08.1982	2517	2720
  31/2-19 S	13.07.1996	3468	3632
  31/2-20 S	08.12.2002	3365	3400
  31/2-21 S	04.06.2014	2932	3074
  31/3-1	13.10.1983	1796	1844
  31/3-2	30.04.1984	1939	2006
  31/3-3	18.11.1984	2163	2209
  31/3-4	05.01.2014	2064	2122
  31/4-2	15.11.1979	2325	2354
  31/4-3	11.05.1980	2327	2411
  31/4-4	17.02.1981	2680	2798
  31/4-5	29.07.1981	2278	2356
  31/4-6	20.04.1982	2318	2380
  31/4-9	07.03.1987	2368	2411
  31/4-11	12.09.2000	2644	2785
  31/4-A-13 C	26.07.2022	7010	7225
  31/5-2	11.11.1983	1957	2036
  31/5-2 R	30.08.1984	1957	2036
  31/5-3	09.06.1984	1992	2103
  31/5-6	25.07.2000	2215	2336
  31/5-7	06.03.2020	2424	2510
  31/6-1	28.10.1983	1805	1835
  31/6-2	11.12.1983	1931	1975
  31/6-2 R	08.09.1984	1931	1975
  31/6-3	26.12.1983	1932	1974
  31/6-5	21.05.1984	1999	2035
  31/6-6	29.07.1984	2008	2045
  31/6-8	25.05.1985	1985	2008
  31/6-8 R	22.09.1985	1985	2008
  31/7-1	22.06.2016	2373	2449
  31/7-2 S	08.07.2017	2377	2450
  31/11-1 S	28.06.2021	2758	2827
  32/2-1	01.07.2008	1187	1228
  32/4-1	04.12.1996	1650	1680
  32/4-3 S	26.10.2019	1645	1669
  33/2-1	26.12.2014	4262	4326
  33/5-2	18.11.1981	4054	4111
  33/5-2	18.11.1981	4154	4176
  33/5-2	18.11.1981	4227	4276
  33/6-1	06.07.1979	3603	3647
  33/6-2	02.01.1997	3613	3777
  33/6-5 S	16.10.2021	3350	3515
  33/9-1	04.06.1974	2464	2668
  33/9-3	14.11.1974	2411	2599
  33/9-4	17.09.1975	2554	2736
  33/9-5	01.01.1976	2605	2774
  33/9-6	31.08.1976	2995	3140
  33/9-7	07.11.1976	2461	2700
  33/9-8	18.02.1977	2740	2881
  33/9-9	17.11.1977	2413	2504
  33/9-10	12.06.1978	3348	3416
  33/9-11	28.08.1978	3126	3276
  33/9-12	03.08.1987	2461	2561
  33/9-13 S	24.12.1987	2727	2815
  33/9-14	09.04.1988	2778	2949
  33/9-15	08.06.1992	2945	3007
  33/9-16	20.01.1993	2815	2870
  33/9-17	04.05.1994	3187	3233
  33/9-19 A	09.08.1996	2840	3070
  33/9-19 S	23.07.1996	2689	2845
  33/9-20 S	09.09.2006	5390	5502
  33/9-21 A	30.04.2009	5902	6366
  33/9-21 B	11.06.2009	5901	6808
  33/9-21 S	19.03.2009	5867	6051
  33/12-1	18.04.1974	2409	2570
  33/12-2	23.08.1974	2483	2500
  33/12-4	17.07.1975	2675	2776
  33/12-6	21.06.1976	2973	3285
  33/12-7	27.04.1989	3022	3306
  33/12-8 A	16.05.2002	2866	3630
  33/12-8 A	16.05.2002	3902	4167
  33/12-8 A	16.05.2002	4554	5098
  33/12-8 S	26.04.2002	2814	3167
  33/12-9 S	08.01.2012	3420	3775
  34/3-4 A	13.02.2015	4089	4246
  34/3-5	16.04.2015	3877	4032
  34/4-3	30.03.1982	3987	4169
  34/4-10 R	18.04.2000	3937	4040
  34/4-11	10.01.2010	3969	4020
  34/4-13 S	02.01.2011	4499	4525
  34/4-14 S	19.05.2015	4344	4417
  34/4-15 A	12.08.2020	3689	3802
  34/4-15 S	15.07.2020	3410	3570
  34/4-16 S	31.03.2021	3457	3603
  34/5-2 S	04.07.2018	3481	3499
  34/6-1 S	28.08.2002	3470	3659
  34/6-2 A	12.12.2012	3478	3547
  34/6-2 S	05.11.2012	3536	3566
  34/6-3 S	24.09.2014	3759	3793
  34/6-4	02.03.2016	3786	3838
  34/7-5	16.03.1985	2502	2622
  34/7-12	17.12.1987	2169	2341
  34/7-13	13.04.1988	2493	2600
  34/7-14	02.12.1989	2189	2413
  34/7-15 S	03.09.1990	4376	4571
  34/7-16	13.08.1990	2390	2514
  34/7-16 R	15.10.1990	2391	2515
  34/7-16 R2	05.07.1994	2390	2514
  34/7-17	07.04.1991	2461	2697
  34/7-17 A	04.05.1991	2495	2650
  34/7-18	17.09.1991	2284	2399
  34/7-19	27.12.1991	2456	2658
  34/7-19 R	12.07.1994	2463	2665
  34/7-20	27.08.1992	2613	2785
  34/7-21	11.12.1992	2692	2972
  34/7-21 A	12.02.1993	3306	3360
  34/7-22	01.10.1993	2224	2460
  34/7-23 S	03.04.1994	3328	3375
  34/7-25 S	14.09.1996	2920	3183
  34/7-27	07.10.1998	2777	2930
  34/7-28	02.03.1998	2792	2972
  34/7-29 S	14.04.1998	2894	2927
  34/7-29 SR	17.03.1999	2893	2926
  34/7-31	13.04.2001	2602	2650
  34/7-32	27.10.2001	2535	2636
  34/7-33	15.10.2008	2372	2587
  34/7-36 S	17.09.2014	3590	3690
  34/7-E-4 AH	13.07.2020	4366	4455
  34/8-1	08.03.1986	2767	2981
  34/8-3	14.09.1988	2837	2965
  34/8-3 A	31.10.1988	3031	3184
  34/8-4 S	09.06.1991	2903	2924
  34/8-5	01.04.1991	2855	3049
  34/8-6	03.11.1991	3686	3880
  34/8-7	16.07.1992	4633	4767
  34/8-7 R	10.02.1993	4633	4767
  34/8-8	24.08.1992	2921	3077
  34/8-8 R	09.03.1993	2921	3077
  34/8-9 S	28.12.1992	2923	2984
  34/8-10 S	09.12.1993	2879	2885
  34/8-10 S	09.12.1993	2888	2932
  34/8-11	08.02.1994	2869	3011
  34/8-12 S	09.12.2001	3055	3081
  34/8-13 A	13.05.2009	3414	3466
  34/8-13 S	26.06.2009	3896	3953
  34/8-14 A	01.12.2008	3500	3720
  34/8-14 B	25.01.2009	3486	4079
  34/8-14 C	08.12.2008	3544	3820
  34/8-14 D	10.02.2009	3596	3797
  34/8-14 S	21.10.2008	3187	3411
  34/8-15 S	19.02.2013	3465	3649
  34/8-17 S	14.03.2014	3951	4069
  34/8-19 S	20.06.2018	3112	3199
  34/8-19 S	20.06.2018	3986	5472
  34/10-1	08.09.1978	1783	1946
  34/10-2	08.12.1978	2944	3124
  34/10-3	07.06.1979	1892	2092
  34/10-3 R	10.10.1987	1889	2089
  34/10-4	15.10.1979	1816	1916
  34/10-5	02.01.1980	1896	2148
  34/10-6	22.01.1980	2075	2290
  34/10-8	25.05.1980	1821	2054
  34/10-9	09.05.1980	1833	1957
  34/10-9 R	03.07.1980	1833	1957
  34/10-12	12.09.1981	2014	2250
  34/10-14	19.03.1982	1908	2080
  34/10-16	11.04.1983	3171	3475
  34/10-16 R	27.09.1983	3168	3472
  34/10-17	08.07.1983	2685	3000
  34/10-18	30.08.1983	2373	2604
  34/10-21	22.10.1984	3287	3550
  34/10-23	13.10.1985	4084	4335
  34/10-30	12.05.1986	2941	2945
  34/10-32	13.07.1987	3170	3178
  34/10-32 R	10.08.1987	3170	3178
  34/10-33	15.12.1988	3186	3424
  34/10-33 A	03.02.1989	3347	3851
  34/10-33 B	10.07.1989	3215	3942
  34/10-33 C	01.08.1989	3215	3722
  34/10-33 CR	27.04.1990	3215	3722
  34/10-34	31.05.1991	1993	2275
  34/10-35	01.07.1992	3913	3942
  34/10-36	13.07.1992	3361	3555
  34/10-37	22.02.1995	2613	2810
  34/10-37 A	03.04.1995	2660	2950
  34/10-38 S	29.05.1995	3021	3052
  34/10-39 S	20.06.1995	2562	2814
  34/10-40 S	13.10.1995	5336	5842
  34/10-41 S	28.08.1997	2553	2875
  34/10-42 S	19.09.1999	4211	4403
  34/10-43 S	11.04.2001	3204	3345
  34/10-45 B	24.11.2003	7720	7928
  34/10-46 A	16.03.2002	6475	6592
  34/10-46 A	16.03.2002	6709	6860
  34/10-46 B	22.05.2002	6522	6592
  34/10-46 S	30.01.2002	5245	5273
  34/10-47 A	14.11.2002	2632	2793
  34/10-47 S	02.11.2002	2876	2910
  34/10-47 S	02.11.2002	2910	3000
  34/10-47 S	02.11.2002	3000	3804
  34/10-48 A	15.02.2005	5158	5611
  34/10-48 S	22.12.2004	5161	6143
  34/10-48 S	22.12.2004	6455	7304
  34/10-49 A	10.06.2006	3020	3312
  34/10-49 B	21.05.2006	2497	2627
  34/10-49 S	08.05.2006	2497	2627
  34/10-52 A	06.08.2011	3282	3470
  34/10-52 B	22.08.2011	3501	3998
  34/10-53 A	01.06.2011	4544	4822
  34/10-53 S	24.03.2011	3635	3956
  34/10-54 A	18.04.2014	4076	4203
  34/10-54 S	11.02.2014	3952	4117
  34/10-55 S	26.03.2017	7205	7214
  34/11-1	25.10.1994	4045	4221
  34/11-2 S	17.05.1996	4068	4328
  34/11-3	16.01.1997	4035	4197
  34/11-4	14.04.1999	4142	4339
  34/11-5 S	03.07.2006	7086	7370
  34/11-6 S	26.01.2017	6837	7105
  34/12-1	30.04.2008	4321	4499
  35/4-1	24.05.1997	4079	4287
  35/4-3	17.05.2022	4277	4427
  35/7-1 S	15.08.2011	4293	4515
  35/8-1	24.01.1981	3516	3744
  35/8-2	21.05.1982	3666	3885
  35/8-3	15.10.1988	3810	3944
  35/8-5 S	20.07.2003	3840	4000
  35/9-1	07.05.1989	2225	2267
  35/9-1 R	27.07.1989	2225	2267
  35/9-2	03.04.1991	2615	2680
  35/9-6 S	07.12.2010	3426	3552
  35/9-7	14.04.2012	2911	3006
  35/9-8	11.04.2013	3146	3256
  35/9-9	18.11.2013	3036	3118
  35/9-10 A	16.01.2014	3098	3203
  35/9-10 S	26.11.2013	3517	3619
  35/9-11 A	21.05.2014	3441	3557
  35/9-11 S	15.04.2014	3442	3558
  35/9-12 S	26.12.2014	3492	3556
  35/10-1	16.01.1992	3324	3507
  35/10-2	22.08.1996	4149	4353
  35/10-4 S	10.10.2018	3625	3834
  35/10-7 A	27.12.2021	3341	3561
  35/10-7 S	11.12.2021	3248	3464
  35/11-1	06.08.1984	2469	2583
  35/11-2	04.12.1987	3370	3601
  35/11-3 S	09.09.1989	3431	3640
  35/11-4	29.12.1990	2624	2785
  35/11-4 R	27.01.1992	2634	2795
  35/11-5	03.11.1991	3206	3396
  35/11-6	20.04.1992	3516	3721
  35/11-7	29.09.1992	2424	2584
  35/11-8 S	11.05.1996	3377	3576
  35/11-10	23.06.1997	2648	2801
  35/11-10 A	14.07.1997	3093	3259
  35/11-11	22.05.1998	3005	3177
  35/11-17	01.05.2014	2677	2837
  35/11-18	27.09.2015	3492	3695
  35/11-18 A	16.12.2015	3540	3750
  35/11-20 B	15.09.2016	4596	4862
  35/11-21 A	17.10.2018	2725	2874
  35/11-21 S	05.09.2018	2595	2758
  35/11-22 S	02.02.2019	3250	3417
  35/11-23	06.11.2019	2722	2894
  35/11-25 A	04.06.2021	3543	3741
  35/12-1	24.04.1992	2886	2908
  35/12-2	15.07.2009	2450	2541
  35/12-3 S	16.02.2011	2716	2807
  35/12-4 A	17.07.2011	3230	3413
  35/12-4 S	26.06.2011	3071	3255
  35/12-5 S	19.06.2015	3488	3570
  35/12-7	25.07.2018	2597	2750
  36/1-4 S	30.01.2022	3150	3228
  36/7-1	07.05.1996	2662	2770

• Wellbores with cores

  Wellbores with cores

  Wellbore name	Wellbore completion date	Core length [m]
  25/5-7	23.10.2010	22
  29/3-1	15.09.1986	35
  29/6-1	09.05.1982	120
  29/9-1	24.02.1984	33
  30/2-1	12.10.1982	92
  30/2-2	04.05.1985	153
  30/2-3	05.10.1992	179
  30/3-1 R	26.04.1982	10
  30/3-2 R	16.02.1981	84
  30/3-3	30.05.1983	14
  30/3-4	12.06.1985	111
  30/3-5 S	19.06.1992	135
  30/3-6 S	06.03.1994	135
  30/3-7 B	04.08.1998	29
  30/3-7 S	12.12.1995	78
  30/3-9	01.07.2000	1
  30/3-11 S	09.09.2022	54
  30/4-2	16.05.1980	120
  30/5-2	21.12.1996	101
  30/5-4 S	23.09.2022	89
  30/6-1	22.09.1979	11
  30/6-2	11.12.1979	34
  30/6-3	07.03.1980	34
  30/6-4	11.05.1981	35
  30/6-5	15.08.1981	88
  30/6-6	24.03.1982	31
  30/6-7	24.08.1982	128
  30/6-8	06.08.1982	47
  30/6-9	16.12.1982	156
  30/6-10	02.12.1982	104
  30/6-10 A	03.03.1983	104
  30/6-11	30.03.1983	52
  30/6-13	14.05.1983	71
  30/6-14	08.02.1984	2
  30/6-16	21.01.1985	12
  30/6-19	21.06.1986	96
  30/6-21	09.04.1987	93
  30/6-22	13.07.1988	122
  30/6-23	01.07.1990	107
  30/6-30	18.11.2018	169
  30/7-8	04.04.1981	38
  30/7-8 R	29.01.1982	93
  30/8-1 S	01.03.1995	194
  30/8-3	05.01.1998	121
  30/8-4 S	04.02.2009	75
  30/9-1	29.01.1983	88
  30/9-2	12.07.1983	167
  30/9-3	26.02.1984	223
  30/9-3 A	20.05.1984	196
  30/9-4 S	30.03.1985	130
  30/9-6	21.04.1987	55
  30/9-7	23.12.1988	53
  30/9-8 R	25.09.1989	134
  30/9-9	06.11.1989	59
  30/9-10	21.09.1990	109
  30/9-11	19.11.1990	58
  30/9-11 A	29.12.1990	33
  30/9-12	09.05.1991	118
  30/9-12 A	04.06.1991	38
  30/9-13 S	11.10.1991	161
  30/9-14	14.05.1993	198
  30/9-15	05.01.1994	21
  30/9-16	08.08.1994	78
  30/9-19	22.10.1998	79
  30/9-19 A	21.12.1998	42
  30/9-20 S	11.02.2002	58
  30/9-22	10.03.2009	83
  30/9-25	20.09.2013	6
  30/10-5	01.05.1975	9
  30/10-6	09.11.1992	80
  30/11-3	14.03.1983	33
  30/11-6 S	02.07.2004	103
  30/11-7	03.02.2009	15
  30/11-7 A	25.05.2009	86
  30/11-8 A	03.07.2011	34
  30/11-8 S	20.05.2011	55
  30/11-9 A	08.01.2014	162
  30/11-10	26.12.2014	70
  30/11-14	06.07.2016	201
  30/12-1	07.03.1994	63
  31/1-2 S	12.01.2021	63
  31/4-3	11.05.1980	9
  31/4-5	29.07.1981	18
  33/5-2	18.11.1981	41
  33/6-1	06.07.1979	9
  33/9-1	04.06.1974	22
  33/9-3	14.11.1974	133
  33/9-4	17.09.1975	58
  33/9-5	01.01.1976	17
  33/9-6	31.08.1976	36
  33/9-7	07.11.1976	103
  33/9-9	17.11.1977	78
  33/9-10	12.06.1978	18
  33/9-11	28.08.1978	18
  33/9-12	03.08.1987	91
  33/9-13 S	24.12.1987	80
  33/9-14	09.04.1988	94
  33/9-19 S	23.07.1996	18
  33/12-1	18.04.1974	64
  33/12-4	17.07.1975	31
  33/12-7	27.04.1989	17
  34/4-3	30.03.1982	16
  34/4-10 R	18.04.2000	27
  34/4-15 S	15.07.2020	81
  34/4-16 S	31.03.2021	96
  34/7-5	16.03.1985	105
  34/7-12	17.12.1987	165
  34/7-13	13.04.1988	91
  34/7-14	02.12.1989	213
  34/7-15 S	03.09.1990	14
  34/7-16	13.08.1990	118
  34/7-17	07.04.1991	116
  34/7-17 A	04.05.1991	20
  34/7-18	17.09.1991	23
  34/7-19	27.12.1991	199
  34/7-20	27.08.1992	23
  34/7-22	01.10.1993	98
  34/8-1	08.03.1986	194
  34/8-3	14.09.1988	118
  34/8-3 A	31.10.1988	112
  34/8-5	01.04.1991	156
  34/8-7	16.07.1992	3
  34/8-8	24.08.1992	153
  34/8-9 S	28.12.1992	17
  34/8-10 S	09.12.1993	23
  34/8-11	08.02.1994	114
  34/8-13 A	13.05.2009	29
  34/8-13 S	26.06.2009	46
  34/8-14 A	01.12.2008	57
  34/8-14 S	21.10.2008	55
  34/10-1	08.09.1978	136
  34/10-2	08.12.1978	21
  34/10-3	07.06.1979	105
  34/10-4	15.10.1979	78
  34/10-5	02.01.1980	39
  34/10-8	25.05.1980	124
  34/10-9	09.05.1980	14
  34/10-12	12.09.1981	4
  34/10-14	19.03.1982	120
  34/10-16	11.04.1983	273
  34/10-17	08.07.1983	279
  34/10-18	30.08.1983	18
  34/10-21	22.10.1984	88
  34/10-23	13.10.1985	217
  34/10-30	12.05.1986	3
  34/10-32	13.07.1987	2
  34/10-33	15.12.1988	231
  34/10-33 B	10.07.1989	24
  34/10-34	31.05.1991	272
  34/10-35	01.07.1992	10
  34/10-36	13.07.1992	54
  34/10-37	22.02.1995	46
  34/10-37 A	03.04.1995	71
  34/10-42 S	19.09.1999	37
  34/10-48 S	22.12.2004	33
  34/10-53 A	01.06.2011	30
  34/10-54 S	11.02.2014	158
  34/11-1	25.10.1994	134
  34/11-2 S	17.05.1996	153
  34/11-3	16.01.1997	93
  34/11-4	14.04.1999	50
  35/4-1	24.05.1997	180
  35/8-1	24.01.1981	178
  35/8-2	21.05.1982	87
  35/8-3	15.10.1988	18
  35/8-5 S	20.07.2003	38
  35/9-1	07.05.1989	38
  35/9-2	03.04.1991	59
  35/9-6 S	07.12.2010	61
  35/9-11 A	21.05.2014	40
  35/10-1	16.01.1992	172
  35/10-2	22.08.1996	82
  35/10-7 A	27.12.2021	37
  35/10-7 S	11.12.2021	141
  35/11-1	06.08.1984	9
  35/11-2	04.12.1987	120
  35/11-3 S	09.09.1989	27
  35/11-5	03.11.1991	125
  35/11-6	20.04.1992	187
  35/11-7	29.09.1992	109
  35/11-10	23.06.1997	93
  35/11-11	22.05.1998	17
  35/11-17	01.05.2014	53
  35/11-18	27.09.2015	54
  35/11-18 A	16.12.2015	44
  35/11-21 A	17.10.2018	109
  35/11-21 S	05.09.2018	135
  35/11-25 A	04.06.2021	72
  35/12-4 S	26.06.2011	73