دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a kind of tools assembly in which a rolling cutter reamer

is joined among two or three drill collars and a stabilizer is joined on each end of the drill collar respectively

n: It is consist of slide block, centibar,roller and body,which is benefit to stabilize the bit and prevent well deviation.