دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: I. a device on a logging tool that contacts the wellbore when the log is being taken. 2. fluid placed in a well to serve a special purpose. 3. a concrete foundation on which a drilling rig rests.

a volume of fluid, without proppant, injected in front of a frac job to establish frac width.