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Study on the microscopic pore structures of the four different kinds of lithological reservoirs in the basin of Western China
Journal of Petroleum Exploration and Production Technology ( IF 2.2 ) Pub Date : 2021-03-17 , DOI: 10.1007/s13202-021-01125-1
Tianqi Liu , Shengchun Xiong , Jiayi Yu , Ying He , Peng Song , Shasha Chu , Wei Lin , Haitao Hou

In the basin of western China, four different kinds of lithological reservoirs are developed, including low-permeability sandstone, sedimentary tuff, shale and volcanic rock. There is generally a large difference in the micropore structure characteristics and distribution laws due to different reservoirs. The reserving capacity as well as the porous flowability, mechanism and laws are determined by the micropore structure characteristics and distribution laws of hydrocarbon reservoirs. Low-temperature nitrogen adsorption and desorption technology, high-pressure mercury injection experiment and nuclear magnetic resonance (NMR) testing technology are applied to study the micropore size, quantity, structure and distribution laws of four different kinds of lithological reservoirs as well as their similarities and differences of corresponding relation with macroporosity–permeability physical parameters. This paper also studies the movable fluid and nonlinear seepage flow characteristics of four different kinds of lithological reservoirs.

更新日期:2021-03-17
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