Investigation on Actuating Pressure Gradient of Low Permeability Reservoir

ZHAO Chunsen, WU Didi, TAO Bo

Abstract


Due to the presence of actuating pressure of low permeability reservoir, researching on actuating pressure gradient of low permeability reservoir is necessary. While actuating pressure gradient is relevant to permeability and porosity, it can be obtained through laboratory experiments, well testing interpretation method and theory derivation combined with practical application method. The results of a large number of laboratory experiments show that actuating pressure is related to permeability. The greater the permeability is, the smaller the actuating pressure is. They both present the similar hyperbolic relationship; the greater the viscosity of the oil is, the greater the actuating pressure is. Here, we get the actuating pressure gradient formula through the method of theory derivation combined with practical application, meanwhile we put forward the relationship between actuating pressure gradient and permeability, porosity and viscosity.
Key words: Low permeability reservoir; Actuating pressure gradient; Porosity; Fluid viscosity


Keywords


Low permeability reservoir; Actuating pressure gradient; Porosity; Fluid viscosity

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References


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DOI: http://dx.doi.org/10.3968/6291

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