Sand production in sandstone oil reservoirs is inevitable,sand-producing and proppant-carrying oil recovery can prevent coarse sand and produce fine sand.This paper discusses the advantages of sand-producing and proppant-carrying oil recovery production mode,investigates the migration law of sand particles in shaft body,gives the theoretical calculation formula for the sedimentation velocity of particles in shaft body,expounds the relationship between the sand particle sedimentation velocity and the minimum proppant-carrying velocity,and concludes that the determination of the minimum proppant-carrying velocity of shaft body needs to be verified by empirical formulas with the help of laboratory experiments.
维普
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