دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

an oil and gas partnership that has not committed to a specified project at the time of amassing capital.

n: an integral part of a blowout preventer. which serves as the closing element on an open hole. Its ends do not fit around the drill pipe but seal against each completely. See ram.

n: a blowout preventer in which blind rams are the closing elements. See blind ram.

The ram sections in a BOP that are used to close against each other and isolate the well when no pipe is in the well.

obstructing an aperture or opening by particles or debris.

a surface deterioration caused by gas trying to escape too rapidly from a elastomer and tearing the surface of the material.

surface corrosion associated with gas adsorption.

n: a housing built around controls on equipment that is sensitive to cold. such as heater-treaters.

n: any assembly of pulleys on a common framework;in mechanics. one or more pulleys. or sheaves. mounted to rotate on a common axis. The crown block is an assembly of sheaves mounted on beams at the top of the derrick or mast. The drilling line is reeved over the sheaves of the crown block alternately with the sheaves of the travelling block. which is hoisted and lowered in the derrick or mast by the drilling line. When elevators are attached to a hook on a conventional travelling block. and when drill pipe is latched in the elevators. the pipe can be raised or lowered in the derrick or mast. See crown block, travelling block.

an obstruction to flow, either partial or full.