Reserves upgraded for Norsk Hydro find

Jan 30, 1997 01:00 AM

The Norwegian Petroleum Directorate (NPD) has announced that an appraisal well on an existing discovery close to Norsk Hydro's Oseberg field has proven potential reserves of between 190 mm and 315 mm barrels of oil equivalent. Spudded in the 100% Shell-operated block 30/5, well 30/5-2 appraised a gas- condensate discovery made about one year ago in Norsk Hydro-operated block 30/8. The results of this well confirm that the original discovery extends into block 30/5. The appraisal well was drilled as a joint venture between the two oil companies with Norsk Hydro responsible for the drilling operation. Drilled by semi-submersible Treasure Saga to a depth of 4052m, well 30/5-2 tested gas and condensate from mid-Jurassic sandstone, said the NPD. Two production tests were carried out in the Brent Group formation. The first test flowed 820 bpd of oil and 70,000 cmpd of gas on a 32/64 in choke. The second test flowed 980,000 cmpd of gas and 3,200 bpd of condensate on a 72/64 in choke. The NPD said that the results of the well are positive and that it had revised upwards its reserve estimates for the discovery. Norsk Hydro plans to drill a further appraisal well on the field this year before evaluating its potential development. The field lies in 82 m of water just to the west of the Oseberg field. Shell is the sole licensee in block 30/5. The partners in block 30/8 are Norsk Hydro (25%), Enterprise (15%), Statoil (10%), and the Norwegian government (50%).

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