研究岩石颗粒机械组份乃是目前石油地质普查勘探工作中一项重要的课题。通过剖析岩石级配,可以确定一定地质时代沉积环境及其渗透性能,从而为研究储集层提供科学依据。吸管—比重瓶法的理论基础是斯托克斯原理和阿基米德原理。这种方法操作简单,耗能少,时间短,工效高,能满足成批样品生产的需要。 Research on the mechanical composition of rock particles is an important issue in the current survey of petroleum geology. Through the analysis of rock gradation, we can determine the sedimentary environment and its permeability in a certain geologic era, so as to provide a scientific basis for reservoir research. The theoretical basis of the pipette - pyknometer method is the Stokes principle and the Archimedes principle. This method is simple, less energy consumption, time is short, high efficiency, to meet the needs of batches of sample production.