دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: an excavating machine fitted with a hinged arm to which is rigidly attacheda bucket that is drawn toward the machine in operation. The backhoe is used for excavating and for clearing blasted rock out of the ditch during ditching and pipe laying.

n: a cylindrical steel bar (similar to the handle or bail of a bucket, only much larger) that supports the swivel and connects it to the hook. Sometimes, the two cylindrical bars that support the elevators and attach them to the hook are called bails or links. v: to recover bottomhole fluids, samples, or drill cuttings by lowering a cylindrical vessel called a bailer to the bottom of a well, filling it, and retrieving it.

n: A rounded steel bar that supports the swivel and connects it to the hook. May also apply to the steel bars that connect the elevators to the hook (links).

remove solids or fluids from a well.

n: a bucket of water into which air from the drill stem is blown through a hose during the first low period of a drill stem test. In drill stem testing, the flow into the bubble bucket is an easy way to judge flow and shut-in periods.

v: to tighten up a threaded connection (such as two joints of drill pipe).

v: To tighten up a threaded connection.

to tighten a connection.

the deformation of pipe in compression as it moves from straight to sinusoidal to helical shapes in the hole. Usually in the elastic range.

n: The inferior drill column bend since bit load produced by self-weight reach to definite value when drill column is in the wellbore. It is decided by bit load and deviation angle.

n: When the pressure suffered by inferior drill column reach to critical value, it deviates the vertical axis and forms a tangency point with borehole face.