On Pore Throat Parameters Calculation of Extra-Low Porosity and Extra-Low Permeability Reservoir

Abstract

Abstract: Based on experimental data, this paper presents ex isting problems of parameters calculation for diameter average values of pore and throat and others, when determining the capillary pressure by mercury injection. It is demon-strated that w here the trouble lies are: adopting units for calculation without unitarity, disagreed understanding for the constant 100 of denominator used in formula and that the micro pore and throat that cannot be measured are neglected. Through caleulation of example, reasonable method for solution of such problems using φ value and maximum mercury injection rate is pointed out to conduct the relat ed calculations.

Key words: mercury injection experiment, pore, pore throat, radius of pore throat

CLC Number:

TE311

LI Guo-nian, LIANG Qin. On Pore Throat Parameters Calculation of Extra-Low Porosity and Extra-Low Permeability Reservoir[J]. Xinjiang Petroleum Geology, 2001, 22(4): 325-327.

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On Pore Throat Parameters Calculation of Extra-Low Porosity and Extra-Low Permeability Reservoir

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