The Use Of Critical Porosity Concept For P-Wave Velocity Estimation; A Field Case
Suryo Prakoso (a*), Muhammad Burhannudinnur (b), Sigit Rahmawan (a), Ghanima Yasmaniar (a) and Syamsul Irham (a)
a) Petroleum Engineering, Faculty of Earth and Energy Technology, Universitas Trisakti
b) Geological Engineering, Faculty of Earth and Energy Technology, Universitas Trisakti
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.
Keywords: Pore Geometry, Critical Porosity, Pore Structure, P-wave Velocity
Topic: Petroleum and Geothermal Engineering