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Abstract

The Saudi Arabian Oil Company has reduced development drilling costs and increased oil reserves by selecting well locations using 3-D seismic data in the Ghinah and Umm Jurf Fields, Central Saudi Arabia. 3-D seismic data provide more accurate structural interpretation of strike-slip structures, and more important, provide stratigraphic predictability within a heterogeneous braided stream reservoir. The success rate for wells with high flow rates (>2000 BOPD) has increased from 43% to over 90% since 3-D seismic data have been used to locate development wells. In addition, the cumulative reserves of the two fields have increased 400%.

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