Generated 04.02.2012
|
|
The NPD's Fact-pages |
|
|
Generated 04.02.2012 |
|
After more than 10 years as a fact provider NPDs FactPages version 1 will be shut down in Dec. 2011.
Start using FactPages version 2 now! See also FactPages version 2 Quick Reference' If you have any questions or comments please send an e-mail to FactWEB@npd.no. |
| NPDID wellbore: | 6063 | |
| Well name: | 35/6-2 | |
| Drilling operator name: | StatoilHydro ASA | |
| Geodetic datum: | ED50 | |
| Coordinates: | 61° 32` 00.98`` N | 3° 54` 40.72`` E |
| UTM coordinates: | 6822726.85 N | 548461.38 E |
| UTM zone: | 31 | |
| Drilled in production licence: | 376 | |
| Area: | NORTH SEA | |
| Drill permit: | 1234-L | |
| Drilling facility: | OCEAN VANGUARD | |
| Drilling days: | 51 | |
| Wellbore entry date: | 11.02.2009 | |
| Wellbore completion date: | 04.04.2009 | |
| Original wellbore purpose: | WILDCAT | |
| Wellbore purpose: | WILDCAT | |
| Wellbore status: | P&A | |
| Wellbore contents: | DRY | |
| Discovery wellbore: | NO | |
| Seismic location: | ST98M08-inline2286 & xline 3024 | |
| Kelly bushing elevation (KB) [m]: | 22 | |
| Water depth [m]: | 344 | |
| Total Depth (MD) [m]: | 3700 | |
| Final vertical depth (TVD) [m]: | 3583 | |
| Max inclination [°]: | 33.60 | |
| Bottom hole temperature [°C]: | 121 | |
| Oldest penetrated age: | EARLY CRETACEOUS | |
| Oldest penetrated formation: | NO FORMAL NAME | |
| Note: All depths, except the water depth, are relative to kelly bushing (RKB) | ||
General
Well 35/6-2 S was drilled on the M&l&y Slope in the Northern North Sea, in the block just north of the Gj&a field and the 35/9-3 Discovery. The main objectives were to prove hydrocarbons in the Early Cretaceous Grosso prospect and the Late Cretaceous Silius prospect. It is a replacement well for well 35/6-1 S, which was abandoned due to a shallow water flow.
Operations and results
A 12 1/4" pilot well (35/6-U-1) was spudded with the semi-submersible installation Ocean Vanguard 10 February 2009 and drilled to 585 m, the expected TD of 20" casing in the new well 35/6-2 S, in order to check for high pressure shallow water. The pilot well was flow checked and no flow was seen. Wildcat well 35/6-2 S was spudded on 4 February 2009 and drilled to TD at 3700 m (3583 m TVD) in Hauterivian aged sandstones within the Cromer Knoll Group where drilling was terminated due to hole problems. The well path was vertical down to ca 1830 m. From there the deviation angle increased up to maximum 33.6 deg at 2800 m and dropped of to ca 9 deg at TD. The well was drilled with seawater and hi-vis pills down to 585 m, with Performadril water based mud with 2.5 - 5% glycol from 585 m to 1662 m, and with Spec 12c yellow oil based mud from 1662 m to TD.
The well penetrated rocks of Quaternary, Tertiary and Cretaceous age. The well encountered the Silius reservoir at 2195 m (2190.2 m TVD) and the extensive Grosso sandstones (Agat Formation) at 3015 m (2931 m TVD). Both reservoirs were water wet. A third sand-prone interval from 3500 m to 3700 m (TD) was penetrated. This interval was dated as earliest Late Hauterivian to Early Hauterivian and is therefore of age-equivalence to the Ran Sandstone Units of the Åsgard Formation. No shows were recorded in the well.
No cores were cut and no wire line fluid samples were taken.
The well was permanently abandoned on 4 April 2009 as a dry well.
Testing
No drill stem test was performed.
Interval [m]: 588.00 - 3690.00
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 | 426.0 | 36 | 426.0 | |
| SURF.COND. | 20 | 581.0 | 26 | 582.0 | 1.57 |
| INTERM. | 13 3/8 | 1654.0 | 17 1/2 | 1662.0 | 1.51 |
| INTERM. | 9 5/8 | 3007.0 | 12 1/4 | 3008.0 | 1.50 |
| OPEN HOLE | 3700.0 | 8 1/2 | 3700.0 |
| Depth MD [m] | Mud weight [g/cm3] | Visc. [MPa.s] | Yield [pnt Pa.] | Mud type | Date measured |
|---|---|---|---|---|---|
| 580 | 1.17 | 21.0 | Spud Mud | ||
| 610 | 1.14 | 20.0 | HPWBM | ||
| 625 | 1.15 | 17.0 | HPWBM | ||
| 655 | 1.12 | 20.0 | HPWBM | ||
| 801 | 1.15 | 28.0 | HPWBM | ||
| 919 | 1.14 | 31.0 | HPWBM | ||
| 1360 | 1.15 | 25.0 | HPWBM | ||
| 1659 | 1.14 | 32.0 | HPWBM | ||
| 1810 | 1.24 | 39.0 | OBM-Standard | ||
| 2970 | 1.20 | 21.0 | OBM-Standard | ||
| 2977 | 1.28 | 20.0 | OBM-Standard | ||
| 3355 | 1.28 | 20.0 | OBM-Standard | ||
| 3620 | 1.28 | 22.0 | OBM-Standard | ||
| 3693 | 1.36 | 24.0 | OBM-Standard | ||
| 3700 | 1.27 | 21.0 | OBM-Standard |
No drill stem test in this wellbore.
| Log type | Intervals logged [m] |
|---|---|
| MWD LWD - ARCVRS9 POWERPULSE | 429 - 1659 |
| MWD LWD - ARCVRES8 POWERPULSE | 1659 - 3008 |
| MWD LWD - GVR6 ARCVRS6 TELESCOPE | 3012 - 3620 |
| MWD LWD - TELE & ACOSCOPE VSONIC | 3620 - 3700 |
| DSI PEX | 1659 - 3008 |
| MDT | 2101 - 2208 |
| DSI PEX | 3009 - 3620 |
| MDT | 3040 - 3580 |
| VSP | 670 - 3500 |
| Top depth [m] | Litostratigraphic unit |
|---|---|
| 366 | NORDLAND GP |
| 532 | HORDALAND GP |
| 607 | NO FORMAL NAME |
| 622 | NO FORMAL NAME |
| 627 | ROGALAND GP |
| 627 | BALDER FM |
| 669 | NO FORMAL NAME |
| 730 | SELE FM |
| 852 | LISTA FM |
| 1335 | VÅLE FM |
| 1355 | SHETLAND GP |
| 1355 | JORSALFARE FM |
| 1411 | KYRRE FM |
| 2195 | NO FORMAL NAME |
| 2211 | KYRRE FM |
| 2375 | TRYGGVASON FM |
| 2620 | BLODØKS FM |
| 2657 | SVARTE FM |
| 2946 | CROMER KNOLL GP |
| 2946 | RØDBY FM |
| 3015 | AGAT FM |
| 3391 | ÅSGARD FM |
| 3500 | NO FORMAL NAME |
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.
