Peter Haalebos, 1991. "A Multidisciplinary Effort to Optimize the Ultimate Recovery of the St. Joseph field—NW Borneo", The Integration of Geology, Geophysics, Petrophysics and Petroleum Engineering in Reservoir Delineation, Description and Management, Robert Sneider, Wulf Massell, Rob Mathis, Dennis Loren, Paul Wichmann
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The St. Joseph field is a large, structurally and stratigraphically complex oil field situated offshore West-Sabah.
The field was discovered in 1975 and since then 8 appraisal wells were drilled.
This has led to the field's current active development with twenty-one production wells having been drilled from four jackets.
Production commenced in 1981 and to date about 18% of the fields ultimate recovery of 186 MMstb have been developed.
In 1985, 3D seismic was acquired.
Detailed interpretation of the 3D seismic data set, in-depth sedimentological studies followed by 3D fullfield reservoir simulation have resulted in an optimization plan of die total field development.
Two additional jackets and a pressure maintenance scheme are planned to be implemented to enhance oil recovery.
This paper illustrates how a dedicated multidisciplinary approach in the use of modem evaluation techniques resulted in a significant increase in oil reserves and an optimised plan to develop these reserves.