دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a rubber-bodied, plastic- or aluminum-cored device used to separate cement and drilling fluid as they are being pumped down the inside of the casing during cementing operations. A wiper plug also removes drilling mud that adheres to the inside of the casing.

a pumpable plug with flexible cup-like extensions that seal and isolate the fluid behind the plug from the fluid in front.