Generated 11.02.2012
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Generated 11.02.2012 |
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| NPDID wellbore: | 1313 | |
| Well name: | 2/4-13 | |
| Drilling operator name: | Saga Petroleum ASA | |
| Geodetic datum: | ED50 | |
| Coordinates: | 56° 41` 03.98`` N | 3° 8` 44.53`` E |
| UTM coordinates: | 6282409.61 N | 508926.35 E |
| UTM zone: | 31 | |
| Drilled in production licence: | 146 | |
| Area: | NORTH SEA | |
| Drill permit: | 588-L | |
| Drilling facility: | TREASURE SAGA | |
| Drilling days: | 33 | |
| Wellbore entry date: | 03.09.1988 | |
| Wellbore completion date: | 06.10.1988 | |
| Original wellbore purpose: | WILDCAT | |
| Wellbore purpose: | WILDCAT | |
| Wellbore status: | JUNKED | |
| Wellbore contents: | GAS SHOWS | |
| Discovery wellbore: | NO | |
| Seismic location: | LINJE NS - 5 - 235 SP 585 | |
| Kelly bushing elevation (KB) [m]: | 26 | |
| Water depth [m]: | 69 | |
| Total Depth (MD) [m]: | 2518 | |
| Final vertical depth (TVD) [m]: | 2517 | |
| Max inclination [°]: | 2.90 | |
| Bottom hole temperature [°C]: | 65 | |
| Oldest penetrated age: | OLIGOCENE | |
| Oldest penetrated formation: | HORDALAND GP | |
| Note: All depths, except the water depth, are relative to kelly bushing (RKB) | ||
General
Wildcat well 2/4-13 was drilled in the middle of a northwest to southeast trending structural/stratigraphic closure on a rotated fault block, about 12 km north of the Ekofisk Field in the North Sea. The primary purpose of the well was to assess the hydrocarbon potential and to test the reservoir potential of Late Jurassic sandstone.
Operations and results
Well 2/4-13 was spudded with the semi-submersible installation Treasure Saga on 3 September 1988.& The well was drilled through the 36", 26", and 17 1/2" sections. The 17 1/2 section was logged before the 13 3/8 casing was run and cemented with shoe at 2503 m. Problems with the seal assembly occurred, which eventually lead to plugging and abandonment of the well. The well was drilled with spud mud and gel down to 921 m and with KCl mud from 921 m to TD.
The well penetrated the Nordland Group to a total depth of 2518 m, 847 m into the Hordaland Group. Shallow gas was seen on MWD between 560 m and 650 m. Below this level background gas varied between 1 - 15 % with trip gas up to 32%. The gas was composed of C1 and C2 with trace C3 towards TD.
The well was permanently abandoned on 6 October 1988 as a junked well. The rig was moved 53.4 m NNW for spudding of a new well bore with the same objectives, well 2/4-14.
Testing
No drill stem test was performed.
Interval [m]: 230.00 - 2510.00
No cores in this wellbore.
No scanned core photos available
No palynological slides in this wellbore.
No oil samples available.
| Type | Casing diam. [inch] | Depth below KB [m] | Hole diam. [inch] | Hole depth below KB [m] | Lot mud eqv. [g/cm3] |
|---|---|---|---|---|---|
| CONDUCTOR | 30 | 214.0 | 36 | 218.0 | |
| SURF.COND. | 20 | 906.0 | 26 | 922.0 | 1.82 |
| INTERM. | 13 3/8 | 2503.0 | 17 1/2 | 2518.0 |
| Depth MD [m] | Mud weight [g/cm3] | Visc. [MPa.s] | Yield [pnt Pa.] | Mud type | Date measured |
|---|---|---|---|---|---|
| 215 | 1.07 | WATER BASED | 1988.09.07 | ||
| 218 | 1.05 | WATER BASED | 1988.09.07 | ||
| 560 | 1.13 | 4.0 | 17.3 | WATER BASED | 1988.09.23 |
| 922 | 1.20 | 6.0 | 17.3 | WATER BASED | 1988.09.23 |
| 922 | 1.20 | 8.0 | 13.9 | WATER BASED | 1988.09.23 |
| 1185 | 1.20 | 14.0 | 6.8 | WATER BASED | 1988.09.23 |
| 1505 | 1.35 | 20.0 | 5.3 | WATER BASED | 1988.09.23 |
| 1720 | 1.35 | 28.0 | 5.3 | WATER BASED | 1988.09.23 |
| 1984 | 1.50 | 20.0 | 4.4 | WATER BASED | 1988.09.23 |
| 2216 | 1.55 | 23.0 | 4.8 | WATER BASED | 1988.09.23 |
| 2406 | 1.60 | 24.0 | 3.4 | WATER BASED | 1988.09.23 |
| 2450 | 1.60 | 27.0 | 5.3 | WATER BASED | 1988.09.23 |
| 2518 | 1.60 | 24.0 | 3.9 | WATER BASED | 1988.09.23 |
| 2518 | 1.60 | 28.0 | 3.4 | WATER BASED | 1988.09.23 |
| 2518 | 1.60 | 23.0 | 4.8 | WATER BASED | 1988.10.03 |
| 2518 | 1.60 | 24.0 | 4.8 | WATER BASED | 1988.10.03 |
| 2518 | 1.60 | 25.0 | 5.8 | WATER BASED | 1988.10.03 |
| 2518 | 1.60 | 26.0 | 4.4 | WATER BASED | 1988.10.03 |
| 2518 | 1.60 | 27.0 | 5.8 | WATER BASED | 1988.10.03 |
| 2518 | 1.60 | 41.0 | 33.6 | WATER BASED | 1988.10.03 |
| 2518 | 1.60 | 37.0 | 30.7 | WATER BASED | 1988.10.14 |
| 2518 | 1.60 | 40.0 | 33.6 | WATER BASED | 1988.10.14 |
| 2518 | 1.60 | 25.0 | 3.4 | WATER BASED | 1988.09.23 |
| 2518 | 1.60 | 28.0 | 3.9 | WATER BASED | 1988.09.23 |
| 2518 | 1.60 | 23.0 | 3.9 | WATER BASED | 1988.10.03 |
| 2518 | 1.60 | 42.0 | 26.4 | WATER BASED | 1988.10.03 |
| 2518 | 1.60 | 21.0 | 32.6 | WATER BASED | 1988.10.14 |
| 2518 | 1.60 | 26.0 | 13.0 | WATER BASED | 1988.10.14 |
No drill stem test in this wellbore.
| Log type | Intervals logged [m] |
|---|
| Top depth [m] | Litostratigraphic unit |
|---|---|
| 95 | NORDLAND GP |
| 1766 | HORDALAND GP |
No composite log presently available.
No geochemical data presently available. Regional geochemical studies which include data from this well may however be filed on a different well.
No documents presently available.
| WDSS_General_Information | (Format:PDF. Size: 0.154 Mb ) |
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