دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: the relatively small amount of gas enters a well when the mud pump is stopped for a connection to be made. Since bottomhole pressure decreases when the pump is stopped, gas may enter the well.

the small amount of gas that enters the wellbore when circulation is stopped to make a connection. The gas only enters the wellbore in this case when the static fluid pressure is less than the pore pressure.

v: to attach a joint of drill pipe onto the drill stem suspended in the well bore to permit deepening the wellbore by the length of the joint (usually about 30 feet, or 9 metres).

n: the procedure that add the single to the volume and make the volume extension.

n: a piece that provides an extension of an instrument (such as a file) and serves to form the handle or make a connection for the attachment of a handle.