Generated 08.02.2012
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Generated 08.02.2012 |
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| NPDID wellbore: | 5995 | |
| Well name: | 2/1-14 | |
| Drilling operator name: | Talisman Energy Norge AS | |
| Geodetic datum: | ED50 | |
| Coordinates: | 56° 54` 17.31`` N | 3° 5` 06.38`` E |
| UTM coordinates: | 6306934.03 N | 505183.43 E |
| UTM zone: | 31 | |
| Drilled in production licence: | 019-B | |
| Area: | NORTH SEA | |
| Drill permit: | 1217-L | |
| Drilling facility: | GYDA | |
| Drilling days: | 84 | |
| Wellbore entry date: | 07.12.2008 | |
| Wellbore completion date: | 28.02.2009 | |
| Original wellbore purpose: | WILDCAT | |
| Wellbore purpose: | WILDCAT | |
| Wellbore status: | P&A | |
| Wellbore contents: | DRY | |
| Discovery wellbore: | NO | |
| Seismic location: | ||
| Kelly bushing elevation (KB) [m]: | 56 | |
| Water depth [m]: | 66 | |
| Total Depth (MD) [m]: | 6130 | |
| Final vertical depth (TVD) [m]: | 3811 | |
| Max inclination [°]: | 65.00 | |
| Bottom hole temperature [°C]: | ||
| Oldest penetrated age: | TRIASSIC | |
| Oldest penetrated formation: | SKAGERRAK FM | |
| Note: All depths, except the water depth, are relative to kelly bushing (RKB) | ||
General
Well 2/1-14 S was drilled deviated from the Gyda Platform on the Gyda Field in the North Sea. The well targeted Late Jurassic, Ula Formation sandstones, across a fault delineating the Gyda Field to the north-east, ca 4 km from the platform location.
Operations and results
Wildcat well 2/1-14 S was drilled as a sidetrack from the production well 2/1-A-22. It was kicked off at the 13 3/8" casing shoe at 931 m in 2/1-A-22 and drilled deviated to TD at 6130 m (3811 m TVD) in red coloured claystones and silty sandstones assumed to be the Triassic Skagerrak Formation. Stress relief cavings were observed whilst drilling the Nordland and Hordaland, a clean out trip was required as the 9 5/8" casing could not be run to bottom due to a suspected
build up of cuttings beds and poor hole cleaning. Whilst drilling through suspected fault zones in the 8 1/2" section, the bit was often &grabbed& and packing off of the hole was noted. Loss zones were noted at 5805 m, 5812 m, but some of this came back whilst circulating prior to POOH to change assembly. Losses were encountered whenever the ECD increased above 1.82 sg, drilling continued with lower flow rates. The well was drilled with Carbosea oil based mud from kick-off to TD.
Top Mandal Formation was penetrated at 5949 m (3660 m TVD), top Farsund Formation at 5967 m (3675 m TVD), and Top of the Ula Formation sandstone unit at 6022 m (3721 m TVD). The Ula Formation sandstone was thinner than expected (12 m TVD) and included claystone interbeds. Very weak oil shows were observed in the Ula sand. Otherwise, the oil based mud made shows detection difficult, and no further oil shows were reported from the well. Logs and gas readings indicated a lack of any moveable hydrocarbons.
No cores were cut and no wire line logs were run in the well. No fluid or pressure samples were taken.
The well was permanently abandoned on 28 February as a dry well.
Testing
No drill stem test was performed.
No cuttings in this wellbore.
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] |
|---|---|---|---|---|---|
| INTERM. | 13 3/8 | 931.0 | 17 1/2 | 931.0 | 1.80 |
| INTERM. | 9 5/8 | 4992.0 | 12 1/4 | 5005.0 | 1.87 |
| OPEN HOLE | 6130.0 | 8 1/2 | 6130.0 |
| Depth MD [m] | Mud weight [g/cm3] | Visc. [MPa.s] | Yield [pnt Pa.] | Mud type | Date measured |
|---|---|---|---|---|---|
| 984 | 1.64 | 48.0 | Invert Emulsion | ||
| 1252 | 1.64 | 36.0 | Invert Emulsion | ||
| 2830 | 1.64 | 42.0 | Invert Emulsion | ||
| 3917 | 1.64 | 40.0 | Invert Emulsion | ||
| 4810 | 1.64 | 50.0 | Invert Emulsion | ||
| 5005 | 1.66 | 55.0 | Invert Emulsion | ||
| 5008 | 1.54 | 49.0 | Invert Emulsion | ||
| 5596 | 1.63 | 44.0 | Invert Emulsion | ||
| 6130 | 1.63 | 48.0 | Invert Emulsion |
No drill stem test in this wellbore.
| Log type | Intervals logged [m] |
|---|---|
| MWD - GR DIR PWD | 931 - 5005 |
| MWD - GR RES DIR PWD | 5005 - 5812 |
| MWD - DIR GR RES PWD ORD CCN ACC | 5812 - 6130 |
| MWD - GR PWD FPT | 6012 - 6096 |
| Top depth [m] | Litostratigraphic unit |
|---|---|
| 122 | NORDLAND GP |
| 1965 | HORDALAND GP |
| 3211 | VADE FM |
| 3278 | HORDALAND GP |
| 4263 | ROGALAND GP |
| 4263 | BALDER FM |
| 4396 | SELE FM |
| 4415 | FORTIES FM |
| 4558 | SELE FM |
| 4581 | LISTA FM |
| 4639 | VIDAR FM |
| 4662 | VIDAR FM |
| 4738 | LISTA FM |
| 4878 | LISTA FM |
| 4916 | VÅLE FM |
| 4955 | SHETLAND GP |
| 4955 | EKOFISK FM |
| 5180 | TOR FM |
| 5597 | HOD FM |
| 5719 | BLODØKS FM |
| 5729 | HIDRA FM |
| 5738 | CROMER KNOLL GP |
| 5738 | RØDBY FM |
| 5775 | SOLA FM |
| 5811 | TUXEN FM |
| 5820 | ÅSGARD FM |
| 5949 | TYNE GP |
| 5949 | MANDAL FM |
| 5967 | FARSUND FM |
| 6022 | VESTLAND GP |
| 6022 | ULA FM |
| 6037 | BRYNE FM |
| 6104 | NO GROUP DEFINED |
| 6104 | SKAGERRAK FM |
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.
