Jeff Ventura Maxus Energy Corp. Dallas Atmawan D. Temansja Maxus Southeast Sumatra Inc. Jakarta In an offshore Southeast Sumatra contract area, resizing downhole pumps increased withdrawal rates from 36 of 37 worked-over wells. These greater fluid producing rates, according to decline curve analysis, will substantially add to the recoverable oil reserves. The work increased an average well's oil production rate by 183 bo/d and added 183,000 bbl/well to recoverable oil reserves without materially affecting water cut. The cost of the reserve additions was $0.37/bbl. No loss in ultimate recovery was indicated for any of the wel...

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