Abstract

Several studies show that P-wave velocity are greatly affected by pore geometry and pore structure. Pore geometry and pore structure here are functions of pore attributes. Petrophysical properties of rocks such as porosity are the result of the sedimentation and diagenesis process so that porosity is strongly influence by pore geometry and pore structure. Thus the P-wave velocity should be predicted well by using porosity. This study was intended to apply the concept of critical porosity for P-wave velocity estimation. The data used in this study included porosity from log analysis and DT log data obtained from the Talang Akar formation for validation. By using this method, the P-wave velocity can be accurately predicted.

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