Quantitative Relationship Between Relative Permeability Curve, Water Drive Curve and Waterflood Reserve

Abstract

Abstract: According to the expressions of relative permeability curves and relative permeability ratio to oil and water, a quantitative relationship between relative permeability curve, water drive curve and waterflood reserve is derived. The result shows that water drive geological reserve is direct proportion to the sum of Corey exponent for water and Corey exponent for oil and inverse proportion to the product of slope of the first water drive curve and oil displacement efficiency. It also explains the reason why the formulae by Dr. Tong Xianzhang are not suitable for predicting waterflood reserves and geological reserves of low permeability fields.

Key words: relative permeability curve, Corey exponent for water, Corey exponent for oil, water drive curve, waterflood reserve, oil displacement efficiency, low permeability field

CLC Number:

TE341

ZHANG Jin-qing, SUN Fu-jie. Quantitative Relationship Between Relative Permeability Curve, Water Drive Curve and Waterflood Reserve[J]. Xinjiang Petroleum Geology, 2010, 31(6): 629-631.

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Quantitative Relationship Between Relative Permeability Curve, Water Drive Curve and Waterflood Reserve

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