دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

a large geographical lease area that may contain separate structures, proven fields or other interests.

a pulley (sheave) or set of pulleys, mounted in a housing. The blocks on a rig are the crown (stationary) block at the top of the derrick and the traveling block.

n: a high-integrity valve with double seals and with provision for determining whether either seal leaks.

n: FERC proposal calling for separation of old and new gas into blocks. or batches. for interstate sales and shipping.

n: a three-dimensional perspective view of a cube. or block. of earth. It is developed from cross sections of the area.

a set of formation blocks, separated by normal faults into different elevations.

n: a technique in squeeze cementing in which (1) the zone below the producing interval is perforated and a high pressure squeeze carried out;(2) the zone the producing interval is perforated and squeezed off in a similar manner;(3) the hole is drilled out;and (4) the producing interval is perforated. The purpose of block squeezing is to isolate the producing interval and prevent communication with the sand immediately above and below the producing interval.

a cement squeeze into a area of perforations. Often done initially over the frac pressure.

n: a valve that completely shuts off flow of a fluid. It is usually either completely open or completely closed.

valve that blocks flow into the downstream conduit when in the closed position.

n: the discharge pipe from a wen being drilled by air drilling. The blooey line is used to conduct the air or gas used for circulation away from the rig to reduce the fire hazard as well as to transport the cuttings a suitable distance from the wen. See air drilling.