The McKee Field, onshore New Zealand, was brought to commercial production during 1984 at 5000 BOPD. Production peaked at 12,000 BOPD in 1989 and was followed by a rapid decline over the next three years to 6000 BOPD at the end of 1992. At this time it was recognized that a proactive field management strategy was required in order to minimize any further decline in field production rates as the "Produce Out - Proven Developed" production forecast showed a continuous production decline. Six key areas of revenue enhancement were identified as implementation of waterflooding in McKee Central, aggressive appraisal drilling, production optimization, exploration in proximal horizons, operating expenditure reductions, and facilities/infrastructure issues. Twenty-eight activities were resourced with a target of sustaining production rates to the year 2000 and increasing remaining reserves from 8 MMbbl (as at 1993) to 21 MMbbl. The look-back analysis presented here describes this integrated approach to reservoir management and illustrates how it continues to meet its production and reserve targets despite unanticipated reservoir complexity.

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