Generated 10.02.2012
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Generated 10.02.2012 |
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| NPDID wellbore: | 162 | |
| Well name: | 2/3-1 | |
| Drilling operator name: | NORSKE MURPHY OIL COMPANY | |
| Geodetic datum: | ED50 | |
| Coordinates: | 56° 53` 09.46`` N | 3° 51` 38.08`` E |
| UTM coordinates: | 6305162.64 N | 552439.87 E |
| UTM zone: | 31 | |
| Drilled in production licence: | 022 | |
| Area: | NORTH SEA | |
| Discovery: | 2/3-1 | |
| Field: | NOT YET DEVELOPED | |
| Drill permit: | 23-L | |
| Drilling facility: | OCEAN TRAVELER | |
| Drilling days: | 53 | |
| Wellbore entry date: | 10.02.1969 | |
| Wellbore completion date: | 03.04.1969 | |
| Original wellbore purpose: | WILDCAT | |
| Wellbore purpose: | WILDCAT | |
| Wellbore status: | P&A | |
| Wellbore contents: | GAS | |
| Discovery wellbore: | YES | |
| Formation/age with hydrocarbons 1: | VADE FM / OLIGOCENE | |
| Seismic location: | LINE 13. | |
| Kelly bushing elevation (KB) [m]: | 27 | |
| Water depth [m]: | 59 | |
| Total Depth (MD) [m]: | 2934 | |
| Final vertical depth (TVD) [m]: | ||
| Max inclination [°]: | ||
| Bottom hole temperature [°C]: | 90 | |
| Oldest penetrated age: | LATE PERMIAN | |
| Oldest penetrated formation: | ZECHSTEIN GP | |
| Note: All depths, except the water depth, are relative to kelly bushing (RKB) | ||
General
Well 2/3-1 is located approximately in the centre of the block on the Sørvestlandet High. The aim of the well was to test potential reservoirs in the Tertiary, Cretaceous, Jurassic, and Trias.
Operations and results
Wildcat well 2/3-1 was spudded with the semi-submersible installation Ocean Traveler on 10 February 1969 and drilled to TD at 2934 m in the Late Permian Zechstein Group. Bad weather with wind up to 31 m/s caused the rig to drift up to ca 40 feet off location on several occasions, interrupting drilling operations. The well was drilled with seawater and bentonite down to 463 m. A water based mud system was used in the remaining borehole.
The well encountered gas in two zones in Oligocene. From log analyses most of the reservoir interval from 1623 m to 1636 m, except a shale break, had a porosity around 22% with Sw = 30%.& Best part of the second zone had a porosity of 23% with an Sw of 23%, (1597 m to 1600 m). No cores were cut in the well and no fluid samples were taken other than during the tests.
The well was permanently abandoned as a gas discovery on 3 April 1969.
Testing
Seven inch casing was run to 1673 m and two flowing drill stem tests were made successfully.& The first test was made from perforations at 1624 m to 1636 m and flowed dry gas at rates of 207000 to 304000 Sm3/day on choke sizes varying from 24/64" to 30/64". The second test flowed dry gas at rates of 40000 to 92000/day on choke sizes varying from 12/64" to 3O/64" from perforations at 1588 m to 1600 m.
No cuttings in this wellbore.
No cores in this wellbore.
No scanned core photos available
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 | 123.0 | 36 | 124.0 | |
| INTERM. | 20 | 275.0 | 26 | 277.0 | |
| INTERM. | 13 3/8 | 1298.0 | 17 1/2 | 1300.0 | |
| INTERM. | 9 5/8 | 1674.0 | 12 1/4 | 1674.0 | |
| OPEN HOLE | 2934.0 | 8 1/2 | 2934.0 |
| Depth MD [m] | Mud weight [g/cm3] | Visc. [MPa.s] | Yield [pnt Pa.] | Mud type | Date measured |
|---|---|---|---|---|---|
| 123 | 1.02 | 200.0 | spud mud | ||
| 463 | 1.01 | 108.0 | water based | ||
| 701 | 1.11 | 40.0 | water based | ||
| 1173 | 1.30 | 50.0 | water based | ||
| 1310 | 1.37 | 49.0 | water based | ||
| 1323 | 1.37 | 63.0 | water based | ||
| 1646 | 1.44 | 62.0 | water based | ||
| 2172 | 1.41 | 98.0 | water based |
| Test no. | Test interval [m] | Choke size [mm] | Final shut in pressure [MPa] | Final flow pressure [MPa] | Bottom hole pressure [MPa] | Downhole temperature [°C] |
|---|---|---|---|---|---|---|
| 1.0 | 1624 - 1637 | 11.5 | 0 | |||
| 2.0 | 1588 - 1601 | 11.5 | 0 |
| Test no. | Oil [Sm3/day] | Gas [Sm3/day] | Oil grav. [g/cm3] | Gas grav. rel.air | GOR [m3/m3] |
|---|---|---|---|---|---|
| 1.0 | 0 | 283100 | 0 | ||
| 2.0 | 0 | 50000 | 0 |
| Log type | Intervals logged [m] |
|---|---|
| IEL | 275 - 2924 |
| GR SON CAL | 107 - 2930 |
| LL | 275 - 2395 |
| MLL CAL | 1158 - 2865 |
| SNP | 1579 - 1653 |
| DENS | 1579 - 1653 |
| Top depth [m] | Litostratigraphic unit |
|---|---|
| 84 | NORDLAND GP |
| 1330 | HORDALAND GP |
| 2135 | ROGALAND GP |
| 2135 | BALDER FM |
| 2153 | SELE FM |
| 2175 | LISTA FM |
| 2243 | SHETLAND GP |
| 2243 | TOR FM |
| 2359 | CROMER KNOLL GP |
| 2563 | VESTLAND GP |
| 2580 | NO GROUP DEFINED |
| 2580 | SKAGERRAK FM |
| 2832 | SMITH BANK FM |
| 2917 | ZECHSTEIN GP |
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Composite log (Format:PDF. Size: 0.302 Mb) |
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No geochemical data presently available. Regional geochemical studies which include data from this well may however be filed on a different well.
| Completion_report | (Format:PDF. Size: 12.761 Mb ) |
| Drilling_programme_murphy | (Format:PDF. Size: 4.285 Mb ) |
| Drilling_programme | (Format:PDF. Size: 0.453 Mb ) |
| Permanent_abandonment | (Format:PDF. Size: 2.666 Mb ) |
| Report_on_wellhead_demolition_operations | (Format:PDF. Size: 1.056 Mb ) |
| Sea_floor_search_survey | (Format:PDF. Size: 39.118 Mb ) |
| Survey_report | (Format:PDF. Size: 2.423 Mb ) |
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| WDSS_General_Information | (Format:PDF. Size: 0.187 Mb ) |
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| NPD_Paper_No.17_Lithology__Well_2_3_1 | (Format:PDF. Size: 18.653 Mb ) |
| NPD_Paper_No.17_Interpreted_Lithology_log__Well_2_3_1 | (Format:PDF. Size: 45.205 Mb ) |
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