Mike Farhadi, 1991. "Intan Field Development—A Synergistic Approach", 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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In 1987 and 1988 MAXUS Southeast Sumatra Inc. discovered two fields in the Asri Basin offshore Indonesia with initial reserve estimates of 300 MMBO. Early development of the Intan Field along with the creation of a reservoir management team resulted in a final development plan for Intan that was successful in saving capital and time as well as minimizing undrained areas. The experience and knowledge gained from the modeling and development of the Intan Field is being applied effectively to the development of the Widuri Field with reserves of 250 MMBO.
The Intan Field is a NE-SW trending, faulted, anticlinal feature located on the northwest flank of the Asri Basin. A study of the environment of deposition reveals the reservoir sands to have been deposited by meandering and low sinuosity rivers flowing from the northwest and from the northeast into the Asri Basin. The discovery well Intan-1 was drilled in October 1987 and encountered 74 feet of net oil pay in the early Miocene Talang Akar formation. Intan-1 flowed at a combined rate of 5845 BOPD from two flow tests. Five additional delineation wells were drilled to confirm the size of the structure depicted by the seismic interpretation and to establish reservoir boundaries. Development drilling of the Intan A platform started in March 1989. Production commenced from 9 wells on the Intan A platform ahead of schedule on June 20,1989 into a temporary production, storage, and export facilities while permanent facilities were being constructed.
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