Open AccessThe analysis on PS wave reflection coefficient in equivalent porous fractured media
Author(s) -
Dou Xiying,
Enli Wang,
Qi Yang,
Bin Du,
Bo Zhang
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/660/1/012077
Subject(s) - porosity , reflection coefficient , reflection (computer programming) , porous medium , anisotropy , fracture (geology) , matrix (chemical analysis) , materials science , mineralogy , mechanics , composite material , geology , optics , physics , computer science , programming language
Combining the equivalent fractured media with Thomsen fractured media theory, the anisotropic parameters expressed in compliance are obtained. The new PS wave reflection coefficient formula presented in matrix porosity, fluid type, and fracture density were established. Numerical simulations show that the PS wave reflection coefficient in water-saturated fracture media is more sensitive to the fracture density than that in gas-saturated media; the difference between the reflection coefficients in the gas-saturated and water-saturated state greatly increases when the matrix porosity of fractured media exceeds 0.01. It shows that fracture density and matrix porosity can be used as good fluid indicators in fractured reservoir.