Generated 11.02.2012
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Generated 11.02.2012 |
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| NPDID wellbore: | 4213 | |
| Well name: | 6507/7-13 | |
| Drilling operator name: | Norske Conoco A/S | |
| Geodetic datum: | ED50 | |
| Coordinates: | 65° 24` 04.53`` N | 7° 19` 49.20`` E |
| UTM coordinates: | 7254385.05 N | 422450.33 E |
| UTM zone: | 32 | |
| Drilled in production licence: | 095 | |
| Area: | NORWEGIAN SEA | |
| Discovery: | 6507/7-13 | |
| Field: | NOT YET DEVELOPED | |
| Drill permit: | 991-L | |
| Drilling facility: | MÆRSK JUTLANDER | |
| Drilling days: | 28 | |
| Wellbore entry date: | 12.12.2000 | |
| Wellbore completion date: | 08.01.2001 | |
| Original wellbore purpose: | WILDCAT | |
| Wellbore purpose: | WILDCAT | |
| Wellbore status: | P&A | |
| Wellbore contents: | OIL | |
| Discovery wellbore: | YES | |
| Formation/age with hydrocarbons 1: | ÅRE FM / EARLY JURASSIC | |
| Seismic location: | ST97 INLINE 1234& CROSSLINE 1435 | |
| Kelly bushing elevation (KB) [m]: | 23 | |
| Water depth [m]: | 381 | |
| Total Depth (MD) [m]: | 2623 | |
| Final vertical depth (TVD) [m]: | 2623 | |
| Max inclination [°]: | 1.00 | |
| Bottom hole temperature [°C]: | 87 | |
| Oldest penetrated age: | LATE TRIASSIC | |
| Oldest penetrated formation: | ÅRE FM | |
| Note: All depths, except the water depth, are relative to kelly bushing (RKB) | ||
General
Wildcat well 6507/7-13 is located on a horst structure on the flank of the Nordland Ridge, eight km north of the Heidrun Field installation. The primary objective was to test the hydrocarbon potential in sandstones of the Late Triassic/Early Jurassic Åre Formation. A sidetrack for coring was planned in the event of a hydrocarbon discovery.
Operations and results
Wildcat well 6507/7-13 was spudded with the semi-submersible installation Maersk Jutlander on 12 December 2000 and drilled to TD at 2623 m in Late Triassic sediments of the Åre Formation. The well was drilled with seawater/polymer down to 1062 m and with KCl/polymer/Barasilc mud from 1062 m to TD.
The Åre Formation was encountered at 2391, directly underlying the Cretaceous Kvitnos Formation. The hiatus spanned from Hettangian to Lower Santonian. The Åre Formation proved to contain hydrocarbon-bearing sandstones. A definite oil-water contact was not seen from resistivity data in the well due to coal, silt, and shale below oil-down-to observed at the base of a sand at 2492.5 m. A water-up-to level was assessed at 2505.7 m and MDT pressure data suggest an OWC near 2500 m.
Four runs with the MDT tool were made, acquiring pressure and fluid samples. Fluid samples were recovered from 2425 m (oil), 2427.5 m (oil), and 2540 m (water). All samples were of good quality.
The well bore was plugged back to the 9 5/8" casing at 2120 m and permanently abandoned on 8 January 2001 as an oil discovery. A sidetrack was prepared (6507/7-13 A) to obtain cores from the reservoir.
Testing
No drill stem test was performed.
Interval [m]: 1080.00 - 2623.00
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 | 465.0 | 36 | 466.0 | |
| SURF.COND. | 13 3/8 | 1065.0 | 17 1/2 | 1066.0 | 1.57 |
| INTERM. | 9 5/8 | 2120.0 | 12 1/4 | 2122.0 | 1.89 |
| OPEN HOLE | 2623.0 | 8 1/2 | 2623.0 |
| Depth MD [m] | Mud weight [g/cm3] | Visc. [MPa.s] | Yield [pnt Pa.] | Mud type | Date measured |
|---|---|---|---|---|---|
| 404 | 1.05 | SPUD MUD | |||
| 468 | 1.05 | SPUD MUD | |||
| 1180 | 1.34 | 19.0 | LOW SOLIDS | ||
| 1930 | 1.46 | 23.0 | LOW SOLIDS | ||
| 2128 | 1.43 | 22.0 | LOW SOLIDS | ||
| 2414 | 1.39 | 25.0 | LOW SOLIDS | ||
| 2623 | 1.39 | 25.0 | LOW SOLIDS |
No drill stem test in this wellbore.
| Log type | Intervals logged [m] |
|---|---|
| LWD - GR RES DIR | 468 - 2128 |
| LWD - GR RES DEN NEU DIR | 2128 - 2621 |
| DSI GPIT NGS EMS | 2122 - 2577 |
| MDT GR | 2405 - 2410 |
| MDT GR | 2411 - 2574 |
| MDT GR | 2481 - 2483 |
| VSP | 1090 - 2600 |
| MDT GR | 2428 - 2481 |
| Top depth [m] | Litostratigraphic unit |
|---|---|
| 404 | NORDLAND GP |
| 404 | NAUST FM |
| 1485 | KAI FM |
| 1842 | HORDALAND GP |
| 1842 | BRYGGE FM |
| 1990 | ROGALAND GP |
| 1990 | TARE FM |
| 2020 | TANG FM |
| 2080 | SHETLAND GP |
| 2080 | SPRINGAR FM |
| 2146 | NISE FM |
| 2256 | KVITNOS FM |
| 2391 | BÅT GP |
| 2391 | ÅRE FM |
No composite log presently available.
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