Anisotropy And Scattering Characteristics In Fracture Zone By Seismic Modeling

Ha, Youngsoo (Korea Maritime University) | Shin, Sungryul (Korea Maritime University)


Fractures and cracks in carbonate rock cause secondary porosity, which affects fluid behavior and production of oil and gas. Therefore, evaluation of fracture properties is crucial to optimize oil and gas production. To this end, we investigated representative seismic response in fracture zone, seismic anisotropy and scattering energy, by physical modeling. We found that application of conventional processing under an assumption of isotropy to anisotropic dataset from physical and numerical modeling experiments, resulted in inaccurate imaging of the reflection interface. Furthermore, scattered energy was found to be most incoherent and irregular when the receiver of the model moved in the direction normal to the fracture strike.