Detailed AVA analysis of a class IIp reservoir in presence of VTI shale anisotropy. A case study from offshore West Africa

Autor: Christian Deplante, Oliver Gratzer, Gabriel Chao, Thierry Cadoret
Rok vydání: 2012
Předmět:
Zdroj: SEG Technical Program Expanded Abstracts 2012.
DOI: 10.1190/segam2012-1280.1
Popis: Summary In this work we investigate the effects of VTI anisotropy in the AVA response of a sand class IIp reservoir offshore West Africa. We performed synthetic modeling based on isotropic and anisotropic approaches and compared the results with pre-stack seismic gathers to understand the angle-dependent effects of VTI anisotropy. We also compared the seismic-well ties when an anisotropic reflectivity model was taken into account with respect to the conventional well-tie where anisotropy is neglected and isotropic Zoeppritz equations are used.
Databáze: OpenAIRE