Generated 08.02.2012
|
|
The NPD's Fact-pages |
|
|
Generated 08.02.2012 |
|
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: | 6182 | |
| Well name: | 30/9-23 | |
| Drilling operator name: | StatoilHydro Petroleum AS | |
| Geodetic datum: | ED50 | |
| Coordinates: | 60° 27` 32.76`` N | 2° 59` 07.64`` E |
| UTM coordinates: | 6702699.70 N | 499199.97 E |
| UTM zone: | 31 | |
| Drilled in production licence: | 104 | |
| Area: | NORTH SEA | |
| Drill permit: | 1265-L | |
| Drilling facility: | TRANSOCEAN WINNER | |
| Drilling days: | 24 | |
| Wellbore entry date: | 29.07.2009 | |
| Wellbore completion date: | 21.08.2009 | |
| Original wellbore purpose: | WILDCAT | |
| Wellbore purpose: | WILDCAT | |
| Wellbore status: | P&A | |
| Wellbore contents: | DRY | |
| Discovery wellbore: | NO | |
| Seismic location: | NH05M01-BIN-inline4656 & crossline 8456 | |
| Kelly bushing elevation (KB) [m]: | 26 | |
| Water depth [m]: | 114 | |
| Total Depth (MD) [m]: | 2872 | |
| Final vertical depth (TVD) [m]: | 2872 | |
| Max inclination [°]: | ||
| Bottom hole temperature [°C]: | ||
| Oldest penetrated age: | EARLY JURASSIC | |
| Oldest penetrated formation: | DUNLIN GP | |
| Note: All depths, except the water depth, are relative to kelly bushing (RKB) | ||
General
The 30/9-23 Quest well was drilled on the Bjørgvin Arch in the Northern North Sea, between the Oseberg, Oseberg Sør, and the Brage Fields. Four reservoir levels were expected, the Intra Draupne sands, Sognefjord Formation, Fensfjord Formation and Brent Group sands. The main objective of the 30/9-23 well was to prove a commercial hydrocarbon accumulation in any of these levels.
Operations and results
Wildcat well 30/9-23 was spudded with the semi-submersible installation Transocean Winner on 28 July 2009 and drilled to TD at 2873 m in Early Jurassic sediments of the Dunlin Group. A 9 7/8" pilot hole was drilled below the 30" casing from 189 m to 510 m. The hole was opened to 17 1/2" and drilled down to 1007 m before setting the 13 3/8" casing. Returns were to seabed above 13 3/8" casing. No shallow gas was observed by the ROV at the wellhead or by the MWD while drilling the 36" hole, the 9 7/8" pilot hole, and the 17 1/2" hole. The well was drilled with seawater and bentonite sweeps down to 1003 m, and with Glydril mud from 1003 m to TD.
The geological prognosis was relatively accurate. The Base Cretaceous Unconformity, top Draupne Formation, was penetrated at 2214 m. A thin Draupne sand was encountered, although not of the quality expected. Sognefjord sand was present as prognosed. Fensfjord sand was encountered at prognosed depth, but the interval was thicker and more fine-grained than expected. Brent was found as prognosed. The well proved a dry Quest prospect, in all 4 reservoir levels. The pressure measurements showed water gradients in all reservoirs. In the Fensfjord Formation no pressure measurements could be achieved, due to tight formation. Brent was depleted with 50 bars, most severe in the connective Oseberg and Etive reservoirs.
No cores were cut and no wire line fluid samples were taken.
The well was permanently abandoned on 19 August as a dry well.
Testing
No drill stem test was performed.
Interval [m]: 1005.00 - 2873.00
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 | 189.0 | 36 | 192.0 | |
| PILOT HOLE | 510.0 | 9 7/8 | 510.0 | ||
| SURF.COND. | 13 3/8 | 997.0 | 17 1/2 | 1003.0 | 1.64 |
| INTERM. | 9 5/8 | 2082.0 | 12 1/4 | 2092.0 | 1.72 |
| OPEN HOLE | 2873.0 | 8 1/2 | 2873.0 |
| Depth MD [m] | Mud weight [g/cm3] | Visc. [MPa.s] | Yield [pnt Pa.] | Mud type | Date measured |
|---|---|---|---|---|---|
| 1003 | 1.35 | 24.0 | Glydril | ||
| 1005 | 1.27 | 14.0 | Glydril | ||
| 1300 | 1.37 | 18.0 | Glydril | ||
| 1955 | 1.40 | 18.0 | Glydril | ||
| 2092 | 1.43 | 20.0 | Glydril | ||
| 2424 | 1.25 | 15.0 | Glydril | ||
| 2873 | 1.25 | 16.0 | Glydril |
No drill stem test in this wellbore.
| Log type | Intervals logged [m] |
|---|---|
| MWD LWD - ARCFVRES6 TELESCOPE | 191 - 2092 |
| MWD LWD - ARCVRES6 GVR6 TELESCOP | 2092 - 2873 |
| PEX HRLA | 2082 - 2873 |
| DSI XPT | 929 - 2873 |
| Top depth [m] | Litostratigraphic unit |
|---|---|
| 140 | NORDLAND GP |
| 666 | UTSIRA FM |
| 832 | HORDALAND GP |
| 1860 | ROGALAND GP |
| 1860 | BALDER FM |
| 1940 | SELE FM |
| 1990 | LISTA FM |
| 2113 | VÅLE FM |
| 2119 | SHETLAND GP |
| 2119 | HARDRÅDE FM |
| 2201 | CROMER KNOLL GP |
| 2201 | RØDBY FM |
| 2206 | ÅSGARD FM |
| 2214 | VIKING GP |
| 2214 | DRAUPNE FM |
| 2283 | SOGNEFJORD FM |
| 2338 | HEATHER FM |
| 2501 | FENSFJORD FM |
| 2668 | HEATHER FM |
| 2678 | KROSSFJORD FM |
| 2717 | BRENT GP |
| 2755 | NESS FM |
| 2806 | ETIVE FM |
| 2812 | RANNOCH FM |
| 2814 | OSEBERG FM |
| 2845 | DUNLIN 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.
