دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: the batching plug which entries into the casing following the cement and on whose rubber shell there are five doctor blade,usually used to shave the drilling fluid on the hole well to prevent the cement slurry being contaminated and divide the cement slu

n: the batching plug which entries into the casing following the cement and on whose rubber shell there are five doctor blade,usually used to shave the drilling fluid on the hole well and divide the cement slurry and displacement fluid