油藏物理学一岩石粒度组成与比面 2.Measurement method 1)sieve analysis: In general,the procedure is to carefully crush the rock with an impact crusher (not a grinder) to obtain individual grains.A set of sieve trays is assembled with the finest screens at the bottom,and sieve size is from large to small.２．Measurement method 1）sieve analysis： 油藏物理学——岩石粒度组成与比面 In general, the procedure is to carefully crush the rock with an impact crusher (not a grinder) to obtain individual grains. A set of sieve trays is assembled with the finest screens at the bottom, and sieve size is from large to small