袖藏物理学一老石粒度组成与比面 Experimental data of sieve analysis >d1 G da-dz di,grain size, d2-d3 Gi,cumulative mass percent ∠dn G=ΣG GExperimental data of sieve analysis 油藏物理学——岩石粒度组成与比面 ＞d1 G1 d1~d2 G2 d2~d3 G3 ＜dn Gn di, grain size, Gi, cumulative mass percent G=∑Gi