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The AAPG/Datapages Combined Publications Database

AAPG Bulletin

Abstract


Volume: 79 (1995)

Issue: 3. (March)

First Page: 431

Last Page: 443

Title: A Physical Model of Cementation and Its Effects on Single-Phase Previous HitPermeabilityNext Hit

Author(s): Manmath N. Panda, Larry W. Lake (2)

Abstract:

In this paper, we present a mathematical model to quantify the effects of cements on the single-phase Previous HitpermeabilityNext Hit estimate of clastic rocks. The model represents pore-filling, pore-lining, and pore-bridging cements by treating the cement particles as rectangular crystals attached radially to detrital grains. These clusters influence Previous HitpermeabilityNext Hit through an increase in effective specific surface area and tortuosity. Because the model is based on physical principles, it is largely devoid of empiricism and should be applicable to a wide range of rock types.

Previous HitPermeabilityNext Hit estimates by our model match experimental data Previous HitfromNext Hit two sets of Previous HitsandstoneNext Hit samples of five hydrocarbon-bearing formations in the North Sea. The model also confirms the well-known result that the effect of pore-bridging cement is a factor of ten greater in reducing the single-phase Previous HitpermeabilityNext Hit compared to pore-lining and pore-filling cements.

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