Wintershall delineating 33/9-6 Delta discovery

Offshore staff

OSLO -- Wintershall Norge has begun test production on appraisal wells 33/9-21 S, 33/9-21 A, and 33/9-21 B on the minor oil discovery 33/9-6 Delta in the North Sea.

Mobil Development Norway A/S made the discovery in 1976 in Middle Jurassic reservoir rocks in production license 037. The resource estimate before the appraisal wells were drilled was 0.14 MMcm of recoverable oil.

The objective of the wells was to delineate the 33/9-6 Delta oil discovery. The wells encountered oil in Middle Jurassic reservoir rocks and the oil/water contact was established at the expected depth. A successful formation test was conducted. In the initial phase of the test production, the maximum production rate is 190 Sm3 oil per flow day through a 10/64-in. nozzle opening, the company says.

Well 33/9-21 B has been placed in a six-month test production period under the well designation 33/9-T-21. The Ministry of Petroleum and Energy has approved the application for test production of up to 500,000 bbl of oil over a period of up to six months. The company will carry out extensive data acquisition and sampling during the test production period.

08/07/2009