RELATIONSHIP BETWEEN PERMEABILITY AND MERCURY INJECTION PARAMETERS CURVE FOR SANDSTONE RESERVOIR

doi:10.3863/j.issn.1000-2634.2001.04.02

西南石油大学学报(自然科学版) ›› 2001, Vol. 23 ›› Issue (4): 5-8.DOI: 10.3863/j.issn.1000-2634.2001.04.02

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RELATIONSHIP BETWEEN PERMEABILITY AND MERCURY INJECTION PARAMETERS CURVE FOR SANDSTONE RESERVOIR

LIAO Ming-guang¹ LI Shi-lun¹ TAN De-hui².　

(Southwest Petroleum Institute, Nanchong,Sichuan 637001,China)

Received:2001-01-09 Revised:1900-01-01 Online:2001-08-20 Published:2001-08-20
Contact: LIAO Ming-guang

Abstract

Abstract:

By the analysis of a large number of sample mercury injection capillary pressure data, it is found that capillary pressure curve shows distinct hyperbola characteristics under log-log coordination, and any capillary pressure can only be determined by three parameters, Pd , Sb and Fg. The apex of hyperbola shows the situation where non-wetting phase completely occupy the effective pore spaces controlling fluid flow. The absolute permeability of reservoir rock is determined by the parameters from position and shape and apex of hyperbola .The estimating model of rock absolute permeability is established successfully by position -shape and apex parameters respectively, and its reliability has been proved by plenty of measured data.

Key words: absolute permeability, sandstone, reservoir, mercury

CLC Number:

TE122.33

LIAO Ming-guang LI Shi-lun TAN De-hui.　. RELATIONSHIP BETWEEN PERMEABILITY AND MERCURY INJECTION PARAMETERS CURVE FOR SANDSTONE RESERVOIR[J]. 西南石油大学学报(自然科学版), 2001, 23(4): 5-8.

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RELATIONSHIP BETWEEN PERMEABILITY AND MERCURY INJECTION PARAMETERS CURVE FOR SANDSTONE RESERVOIR

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