西安石油大学：《油藏物理（油层物理学）Petro-physics》精品课程教学资源（英文课件）Physics property of reservoir rock 1.3 pore structure and porosity of reservoir rock 储层岩石的孔隙结构及孔隙度

c.Based on connectivity of pore: interconnected pore/communicating pore/open pore/interconnecting pore and dead pore/bypassed pore/blind pore

c. Based on connectivity of pore: interconnected pore/communicating pore/open pore/interconnecting pore and dead pore/bypassed pore/blind pore

油藏物理学一储层岩石的孔隙结构及孔隙度 2 pore size and sorting expression on pore size and sorting: qualitative analysis: cumulative distribution curve of pore size quantitative analysis: sorted coefficient,skewness and peak value/peak/crest value

2 pore size and sorting expression on pore size and sorting: qualitative analysis： cumulative distribution curve of pore size quantitative analysis： sorted coefficient,skewness and peak value/peak/crest value 油藏物理学—储层岩石的孔隙结构及孔隙度

油藏物理学一储层岩石的孔隙结构及孔隙度 1)sorted coefficient S。=46+54 4 6.6 =-l0g2d

1）sorted coefficient 4 6.6 84 16 95 5   S p  i 2 di   log 油藏物理学—储层岩石的孔隙结构及孔隙度

d-express the pore throat diameter of cumulative content of i in Cumulative distribution curve o Sp -express uniformity of pore distribution,the smaller Sp value,more uniform pore size distribution,and the better the sorting

i d —express the pore throat diameter of cumulative content of i in Cumulative distribution curve 。 p S —express uniformity of pore distribution, the smaller SP value, more uniform pore size distribution, and the better the sorting

油藏物理学一储层岩石的孔隙结构及孔隙度 2)Sip(skewness) %4+46-290+45+-240 2(44-46) 2(45-4) -1≤So≤1

2）Skp (skewness) 2( ) 2 2( ) 2 9 5 5 9 5 5 5 0 8 4 1 6 8 4 1 6 5 0                  Skp  1  Skp  1 油藏物理学—储层岩石的孔隙结构及孔隙度