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Permeability Calculation Method for Acidic Volcanic Rock Based on Petrophysical Phase
详细信息   
摘要

Volcanic reservoir heterogeneity is strong and it is difficult to describe the porosity-permeability relationship with mathematical models. Using the layer flow index of petrophysical phase as a characterization parameter, the paper classifies porosity and permeability relationship of the acidic volcanic rock reservoir core date in Xushen gas field, establishes the porosity-permeability relationship model based on layer flow index. Applying this method, this paper processes the data of 45 wells. The paper consists of the permeability through logging calculation with the 223 core analysis permeability. The results showed that: accuracy has been greatly improved, the results can meet the needs of fine evaluation and development of gas reservoir, it can serves as a reference for the volcanic reservoir permeability calculation in other areas.

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