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The AAPG/Datapages Combined Publications Database

Indonesian Petroleum Association


24th Annual Convention Proceedings (Volume 2), 1995
Pages 13-31

Previous HitHorizontalNext Hit Well Inflow Performance in Reservoirs with Discontinuous Vertical Permeability Characteristics

Pudji Permadi


A large volume of publications have been available in the literature showing the benefit of Previous HithorizontalNext Hit wells in relatively heterogeneous reservoirs. However, a lack of attention is given to show the advantages for improving production performance in multilayer reservoirs and reservoirs that contain discontinuous shale. Many Indonesian oil reservoirs are such kind. The present study investigates the effects of vertical discontinuity in inflow performance of a Previous HithorizontalNext Hit well and also presents methods to forecast the oil production. These can help engineers in screening application of a Previous HithorizontalNext Hit well for non-homogeneous reservoirs. The major conclusions are that a Previous HithorizontalTop well should be placed in the most permeable layer of a multilayer system, productivity decreases markedly with increasing shale density, and breakthrough time increases as effective vertical permeability decreases. Detailed results are presented and discussed.

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