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The AAPG/Datapages Combined Publications Database

Indonesian Petroleum Association

Abstract


18th Annual Convention Proceedings (Volume 2), 1989
Pages 161-208

Petrophysical Properties of the Bima Batu Raja Carbonate Reservoir, Offshore N.W. Java

R. E. Crumb

Abstract

Petrophysical properties of the Bima Batu Raja carbonate reservoir were reviewed to identify cut-off porosity, formation factor, and other parameters needed for reservoir analysis. The reservoir consists of under-compacted mudstone, wackestone and packstone with porosity approaching 40 %. The laboratory cut-off porosity and permeability (which are used to determine net-pay) are unusually high at 26 % and 10 md (23 % and and 1 md, in-situ). Cut-off values are high because the rock is believed to contain unavailable (non-interconnected) porosity. Finally, log analysis is discussed and a procedure is described to predict permeability from a combination of core and log data.


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