Generated 08.02.2012
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Generated 08.02.2012 |
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| NPDID wellbore: | 6025 | |
| Well name: | 34/8-13 | |
| Drilling operator name: | StatoilHydro ASA | |
| Geodetic datum: | ED50 | |
| Coordinates: | 61° 24` 15.80`` N | 2° 34` 52.00`` E |
| UTM coordinates: | 6808065.46 N | 477631.61 E |
| UTM zone: | 31 | |
| Drilled in production licence: | 120 | |
| Area: | NORTH SEA | |
| Discovery: | 34/8-13 S | |
| Field: | NOT YET DEVELOPED | |
| Drill permit: | 1222-L | |
| Drilling facility: | SCARABEO 5 | |
| Drilling days: | 44 | |
| Wellbore entry date: | 14.05.2009 | |
| Wellbore completion date: | 26.06.2009 | |
| Original wellbore purpose: | WILDCAT | |
| Wellbore purpose: | WILDCAT | |
| Wellbore status: | P&A | |
| Wellbore contents: | OIL | |
| Discovery wellbore: | YES | |
| Formation/age with hydrocarbons 1: | BRENT GP / MIDDLE JURASSIC | |
| Seismic location: | inline ST0404-2227&crossline ST0404-1766 | |
| Kelly bushing elevation (KB) [m]: | 25 | |
| Water depth [m]: | 380 | |
| Total Depth (MD) [m]: | 4442 | |
| Final vertical depth (TVD) [m]: | 3283 | |
| Max inclination [°]: | 63.20 | |
| Bottom hole temperature [°C]: | ||
| Oldest penetrated age: | TRIASSIC | |
| Oldest penetrated formation: | LUNDE FM | |
| Note: All depths, except the water depth, are relative to kelly bushing (RKB) | ||
General
Wells 34/8-13 A and 34/8-13 S were drilled in the Tampen Spur area of the North Sea. The objective of the wells was to the test the hydrocarbon potential in the Titan prospect. The prospect is located east of the Visund N2 Brent segment as part of the Visund N2 East Flank degradation complex, and contains two slide blocks, B and C. The primary objective of the 34/8-13A was to test the hydrocarbon potential of slide block B in the Titan prospect while the sidetrack 34/8-13 S, was drilled to test slide block C. For technical reasons the naming of these wells is reversed compared to usual practice: the A well is the main well while the S well is the geological sidetrack.
Operations and results
Wildcat well 34/8-13 S was kicked off at 1346 m in well 34/8-13A on 14 May 2009. It was drilled with the semi-submersible installation Scarabeo 5 to TD at 4442 m (3283 m TVD) in the Triassic Lunde Formation. The well was drilled with XP-07 oil based mud from kick-off to TD.
The well penetrated rocks of Tertiary, Cretaceous, Jurassic, and Triassic age. Top Draupne Formation shale was penetrated at 3865 m (2859.4 m TVD), top Heather Formation shale at 3884 m (2873.1 m TVD), and top Tarbert Formation sandstone at 3896 m (2881.7 m TVD). Oil was found in degraded Tarbert and Ness Formation sandstones in the Brent Group. An oil leg of 20 m TVD was proven in the well position with oil down to 2901 m TVD and water up to 2901.8 m TVD. Shows were not recorded anywhere in the well outside of the oil-bearing reservoir.
Two cores were cut in the Brent Group from 3906 to 3952.5 m. MDT oil samples were taken at 3917.2 m in the Ness Formation. The contamination from the OBM in these were 14 to 14.5 %wt. Analysis of the oil base in the mud filtrate proved a narrow cut of n-alkanes centred around C13.
The well was permanently abandoned on 26 June 2009 as an oil discovery.
Testing
No drill stem test was performed.
Interval [m]: 3560.00 - 4442.00
Core length [m]: 45.70
| Core number | Interval |
|---|---|
| 1 | 3906-3931.4 |
| 2 | 3932-3952.3 |
No scanned core photos available
No palynological slides in this wellbore.
No oil samples available.
| Depth MD [m] | Mud weight [g/cm3] | Visc. [MPa.s] | Yield [pnt Pa.] | Mud type | Date measured |
|---|---|---|---|---|---|
| 1330 | 1.41 | 16.0 | XP-07 - #14 | ||
| 1511 | 1.42 | 19.0 | XP-07 - #14 | ||
| 1963 | 1.46 | 21.0 | XP-07 - #14 | ||
| 2445 | 1.48 | 23.0 | XP-07 - #14 | ||
| 3556 | 1.48 | 20.0 | XP-07 - #14 | ||
| 3560 | 1.48 | 22.0 | XP-07 - #14 | ||
| 3865 | 1.61 | 28.0 | XP-07 - #14 | ||
| 3952 | 1.61 | 25.0 | OBM-Low ECD | ||
| 4279 | 1.61 | 27.0 | XP-07 - #14 | ||
| 4442 | 1.61 | 29.0 | XP-07 - #14 | ||
| 4442 | 1.48 | 21.0 | XP-07 - #14 | ||
| 4442 | 1.61 | 26.0 | XP-07 - #14 |
No drill stem test in this wellbore.
| Log type | Intervals logged [m] |
|---|---|
| MWD - TELE ARCVRES8 | 1350 - 3556 |
| MWD - ECO TELE SEISMICVISION | 3556 - 4442 |
| MSIP OBMI PPC | 3548 - 4295 |
| MDT GR | 3897 - 4265 |
| OBMI MSIP PPC XPT | 3548 - 4099 |
| Top depth [m] | Litostratigraphic unit |
|---|---|
| 405 | NORDLAND GP |
| 1032 | UTSIRA FM |
| 1217 | HORDALAND GP |
| 1925 | ROGALAND GP |
| 1925 | BALDER FM |
| 1987 | SELE FM |
| 2020 | LISTA FM |
| 2123 | SHETLAND GP |
| 2123 | JORSALFARE FM |
| 2577 | KYRRE FM |
| 3830 | TRYGGVASON FM |
| 3857 | CROMER KNOLL GP |
| 3857 | ÅSGARD FM |
| 3865 | VIKING GP |
| 3865 | DRAUPNE FM |
| 3884 | HEATHER FM |
| 3896 | BRENT GP |
| 3896 | TARBERT FM |
| 3907 | NESS FM |
| 3945 | ETIVE FM |
| 3953 | DUNLIN GP |
| 3953 | DRAKE FM |
| 3972 | COOK FM |
| 4085 | AMUNDSEN FM |
| 4123 | NO GROUP DEFINED |
| 4123 | STATFJORD FM |
| 4282 | HEGRE GP |
| 4282 | LUNDE 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.
