MEASUREMENT AND MODELING OF DIFFUSION, POROSITY AND OTHER PORE LEVEL CHARACTERISTICS OF SANDSTONES

被引：21

作者：

MATTHEWS, GP

SPEARING, MC

机构：

[1] Department of Environmental Sciences, Polytechnic South West, Plymouth, Devon PL4 8AA, Drake Circus

来源：

MARINE AND PETROLEUM GEOLOGY | 1992年 / 9卷 / 02期

关键词：

SANDSTONES; DIFFUSION MODELING; GEOPHYSICAL PROPERTIES;

D O I：

10.1016/0264-8172(92)90087-U

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

The diffusion coefficients of methane, iso-butane and n-butane through dry and water-saturated sandstones and their dependence on relative molar mass are discussed. The diffusion of iso-butane is anomalously fast in dry sandstones and that of methane is anomalously low in water-saturated sandstones. A three-dimensional computer model of the pores and throats in the sandstone has been developed. Simulations have been made of the sandstone's porosity, surface area, pore and throat size distribution, tortuosity, mercury porosimetry primary drainage curve, average pore connectivity and diffusion coefficient for mixed gaseous alkanes.

引用

页码：146 / 154

页数：9

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