Anisotropic seismic rock physics model of tight oil sandstone based on double-porosity theory

作者：Huang Xinrui; Huang Jianping^*; Li Zhenchun

来源：Acta Petrolei Sinica, 2015, 36(10): 1248-1259.

DOI：10.7623/syxb201510007

• Double porosity model
• Low permeability
• Mineral component
• Pore connectivity
• Rock physics model
• Sandstone reservoirs
• Solid components
• Theoretical modeling

Tight oil sandstone reservoirs are characterized by low porosity, low permeability, diversified mineral components and complex pore structures, leading to a great challenge for rock physics modeling. Based on the specialty of tight oil sandstone, seismic rock physics model of tight oil sandstone was improved from two aspects, i.e., solid components and pore structures of the rocks, so as to achieve the rock physics modeling for anisotropic tight oil sandstone based on double-porosity theory. Moreover, the influences of four factors, i.e., clay content and type, pore connectivity and type, on rock physics modeling were studied systematically using the new theoretical model. The results show that the clay, pore connectivity and pore type will have great impacts on tight oil sandstone, proving the rationality of rock physics modeling.

• 出版日期2015
• 单位中国石油大学（华东）