地质与资源2018，Vol.27Issue(3)：288-292,5.
围压和孔隙结构对不同粒级砂岩孔隙度渗透率的影响实验研究
EXPERIMENTAL STUDY ON THE EFFECTS OF CONFINING PRESSURE AND PORE STRUCTURE ON POROSITY AND PERMEABILITY OF SANDSTONES WITH DIFFERENT GRAIN SIZES
张丽华 1潘保芝 1单刚义1
作者信息
- 1. 吉林大学地球探测科学与技术学院,吉林长春130026
- 折叠
摘要
Abstract
By measuring the porosity and permeability of core samples under different pressures, their relations with pressure are obtained. The results show that porosity and permeability decrease as pressure increases and obey the rule of logarithm function. However, the changing trends are quite different for sandstone samples between different intervals of porosity and permeability. The effect of pore structure on porosity and permeability are confirmed through the capillary pressure curve and nuclear magnetic resonance (NMR) T2 spectrogram of sandstone samples with different grain sizes. The microstructure is the key factor that determines permeability.关键词
围压/孔隙结构/毛管压力曲线/核磁共振/孔隙度和渗透率Key words
confining pressure/pore structure/capillary pressure curve/NMR/porosity and permeability分类
天文与地球科学引用本文复制引用
张丽华,潘保芝,单刚义..围压和孔隙结构对不同粒级砂岩孔隙度渗透率的影响实验研究[J].地质与资源,2018,27(3):288-292,5.
