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Exploration wellbore: 2/1-10

General information

NPDID wellbore: 1865
Well name: 2/1-10
Drilling operator name: BP Norway Limited U.A.
Geodetic datum: ED50
Coordinates: 56° 57` 53.61`` N 3° 1` 19.70`` E
UTM coordinates: 6313619.42 N 501346.22 E
UTM zone: 31
Drilled in production licence: 164
Area: NORTH SEA
Drill permit: 703-L
Drilling facility:ROSS ISLE
Drilling days: 67
Wellbore entry date: 09.11.1991
Wellbore completion date: 14.01.1992
Original wellbore purpose: WILDCAT
Wellbore purpose: WILDCAT
Wellbore status: P&A
Wellbore contents: OIL SHOWS
Discovery wellbore: NO
Seismic location: GYDA 3D IN LINE 122 X- LINE 1006
Kelly bushing elevation (KB) [m]: 23
Water depth [m]: 66
Total Depth (MD) [m]: 4525
Final vertical depth (TVD) [m]: 4523
Max inclination [°]: 6.65
Bottom hole temperature [°C]: 163
Oldest penetrated age: TRIASSIC
Oldest penetrated formation: SKAGERRAK FM
Note: All depths, except the water depth, are relative to kelly bushing (RKB)

Wellbore history

General

The well 2/1-10 was drilled on a prospect located within PL 164, 7.8km Northwest of Gyda Platform. The primary objective was to test the Upper Jurassic Ula Formation, if successfully, to prove a volume of oil that was commercial as a tie back development to the Gyda Platform. A secondary target was a younger Ula Formation interval.

Operations and results

The wildcat well 2/1-10 was spudded on 9 November 1991 with the semi-submersible installation "Ross Isle", and was completed 14 January 1992 in the Triassic Skagerrak Formation. The well was drilled with sea water and hi-vis pills down to 1101 m and with KCl polymer mud from 1101 m to TD. The upper part of the Ula Formation was encountered at 4189.5 m, 50 m deeper than originally predicted. A 133 m thick Ula Formation was encountered instead of the most likely prognosed model of 15 to 30 m thick Ula formation (intra Farsund) sandstone, separated from underlying Ula Sandstone by a 50 to 60 m thick Farsund mudstone. The Ula Formation was cored from 4194 m to 4289.5 m. Fair quality shows was observed in uppermost 5 meter of sandstone only. 2/1-10 was plugged and abandoned as dry well.

Testing

No drill stem test was performed

Cuttings available at the NPD

Interval [m]: 1110.00 - 4525.00

Cores available at the NPD

Core length [m]: 95.50

Core number Interval
1 4193-4219
2 4219-4246
3 4246-4272.7
4 4272.7-4278.5
5 4278.5-4288.3

Scanned core photos

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4193-4198m
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4198-4203m
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4203-4208m
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4208-4213m
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4213-4218m
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4218-4221m
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4221-4226m
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4226-4231m
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4231-4236m
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4236-4241m
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4241-4246m
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4246-4250m
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4250-4255m
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4255-4260m
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4260-4265m
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4265-4270m
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4270-4274m
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4274-4279m
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4279-4284m
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4284-4288m

Palynological slides available at the NPD

No palynological slides in this wellbore.

Oil samples available at the NPD

No oil samples available.

Casing and leak-off tests

Type Casing diam. [inch] Depth below KB [m] Hole diam. [inch] Hole depth below KB [m] Lot mud eqv. [g/cm3]
CONDUCTOR 30+20 160.0 36 161.0
INTERM. 13 3/8 1096.0 17 1/2 1100.0 1.99
INTERM. 9 5/8 3234.0 12 1/4 3236.0 1.94
LINER 7 4525.0 8 1/2 4525.0

Mud

Depth MD [m] Mud weight [g/cm3] Visc. [MPa.s] Yield [pnt Pa.] Mud type Date measured
687 1.60 28.0 3.8 WATER BASED 1992.01.14
817 1.59 30.0 4.8 WATER BASED 1992.01.14
1100 1.08 WATER BASED 1991.11.15
1100 1.07 WATER BASED 1991.11.19
1100 1.08 WATER BASED 1991.11.13
1100 1.08 WATER BASED 1991.11.15
1100 1.07 54.0 15.4 WATER BASED 1991.11.19
1100 1.03 WATER BASED 1991.11.19
1101 1.40 32.0 9.1 WATER BASED 1991.11.20
1250 1.45 29.0 8.2 WATER BASED 1991.11.20
1636 1.57 32.0 8.6 WATER BASED 1991.11.20
1763 1.60 35.0 8.6 OIL BASED 1991.11.21
2023 1.60 41.0 9.1 WATER BASED 1991.11.22
2172 1.60 41.0 7.7 WATER BASED 1991.11.25
2290 1.60 45.0 9.6 WATER BASED 1991.11.25
2502 1.60 43.0 9.1 WATER BASED 1991.11.25
2710 1.60 44.0 8.2 WATER BASED 1991.11.26
2864 1.60 41.0 7.7 WATER BASED 1991.11.27
2906 1.60 44.0 8.2 WATER BASED 1991.11.28
3002 1.60 43.0 9.2 WATER BASED 1991.11.29
3060 1.60 49.0 10.6 WATER BASED 1991.12.02
3119 1.60 40.0 9.1 WATER BASED 1991.12.02
3128 1.57 47.0 7.2 WATER BASED 1992.01.14
3128 1.57 40.0 6.7 WATER BASED 1992.01.14
3162 1.60 49.0 10.6 WATER BASED 1991.12.02
3242 1.60 47.0 10.8 WATER BASED 1991.12.04
3242 1.60 45.0 9.3 WATER BASED 1991.12.05
3242 1.61 61.0 13.4 WATER BASED 1991.12.05
3242 1.61 44.0 10.6 WATER BASED 1991.12.06
3313 1.30 35.0 12.0 WATER BASED 1991.12.09
3366 1.55 42.0 13.0 WATER BASED 1991.12.09
3420 1.55 38.0 11.0 WATER BASED 1991.12.09
3572 1.55 43.0 12.0 WATER BASED 1991.12.11
3695 1.55 40.0 11.0 WATER BASED 1991.12.12
3721 1.55 40.0 11.0 WATER BASED 1991.12.12
3772 1.55 43.0 11.5 WATER BASED 1991.12.13
3817 1.55 40.0 10.6 WATER BASED 1991.12.16
3900 1.55 37.0 8.6 WATER BASED 1991.12.16
3954 1.55 46.0 11.5 WATER BASED 1991.12.16
3992 1.55 43.0 10.1 WATER BASED 1991.12.17
4092 1.57 51.0 10.6 WATER BASED 1992.01.09
4121 1.55 44.0 11.0 WATER BASED 1991.12.18
4193 1.55 43.0 10.6 WATER BASED 1991.12.19
4221 1.55 42.0 10.6 WATER BASED 1991.12.20
4244 1.56 41.0 9.1 WATER BASED 1991.12.23
4272 1.55 44.0 9.6 WATER BASED 1991.12.23
4277 1.55 41.0 9.1 WATER BASED 1991.12.23
4287 1.55 42.0 9.6 WATER BASED 1991.12.27
4328 1.55 48.0 11.0 WATER BASED 1991.12.27
4424 1.55 49.0 11.5 WATER BASED 1991.12.27
4443 1.55 52.0 13.4 WATER BASED 1991.12.27
4443 1.55 49.0 12.0 WATER BASED 1991.12.30
4443 1.55 50.0 13.0 WATER BASED 1991.12.30
4525 1.55 48.0 10.6 WATER BASED 1992.01.06
4525 1.55 49.0 10.6 WATER BASED 1992.01.06
4525 1.57 57.0 13.0 WATER BASED 1992.01.07
4525 1.55 50.0 12.0 WATER BASED 1991.12.30
4525 1.55 49.0 10.6 WATER BASED 1992.01.06
4525 1.55 42.0 8.6 WATER BASED 1992.01.06
4525 1.55 49.0 10.6 WATER BASED 1992.01.06
4525 1.55 48.0 10.6 WATER BASED 1992.01.06
4525 1.55 42.0 8.6 WATER BASED 1992.01.06
4525 1.55 48.0 10.6 WATER BASED 1992.01.06
4525 1.55 42.0 8.6 WATER BASED 1992.01.06
4525 1.55 53.0 10.6 WATER BASED 1992.01.08

Drill stem test

No drill stem test in this wellbore.

Available logs

Log type Intervals logged [m]
MWD 89 - 4525
DIL LLS GR 89 - 3241
DLL MSFL SDT GR 3233 - 4525
LDL CNL GR 4050 - 4525
RFT GR 4193 - 4463
SHDT GR 3800 - 4525
RFT GR 4226 - 4226
CST GR 3840 - 4515
VSP 1000 - 4375

Lithostratigraphy

Top depth [m] Litostratigraphic unit
89 NORDLAND GP
1712 HORDALAND GP
2977 ROGALAND GP
2977 BALDER FM
3003 SELE FM
3015 LISTA FM
3168 VÅLE FM
3221 SHETLAND GP
3221 EKOFISK FM
3323 TOR FM
3607 HOD FM
3789 BLODØKS FM
3822 HIDRA FM
3852 CROMER KNOLL GP
3852 RØDBY FM
3889 SOLA FM
3914 TUXEN FM
3964 ÅSGARD FM
4127 TYNE GP
4127 MANDAL FM
4156 FARSUND FM
4189 VESTLAND GP
4189 ULA FM
4322 TYNE GP
4322 FARSUND FM
4347 HAUGESUND FM
4435 NO GROUP DEFINED
4435 SKAGERRAK FM

Composite log

Composite log (Format:PDF. Size: 0.594 Mb)
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Geochemical information available at the NPD

No geochemical data presently available. Regional geochemical studies which include data from this well may however be filed on a different well.

Documents reported by the licencees (period for duty of secrecy expired)

No documents presently available.

Old NPD WDSS reports, NPD papers and other related documents

WDSS_General_Information (Format:PDF. Size: 0.477 Mb )
WDSS_completion_log (Format:PDF. Size: 0.246 Mb )
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