دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: The technological process that increase the deviation angle with building assembly and angle build-up treating.

n: The combination of drill tool that decreases the deviation angle in directional drilling.

n: The combination of drill tool that holds the deviation angle in directional drilling.

the mechanism that provides pressure isolation between each casing hanger and the wellhead housing.

n: The package assembled by several special devices. It can achieve some function.

n: The organization that automatically controls the intake yield of gas cut drilling fluid according to the level changing of drilling fluid in the deaeration room.

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.

n: the assembly of well-control equipment including preventers. spools. valves. and nipples connected to the top of the wellhead.

abbr: blowout preventer equipment. BOP stack n: the assembly of blowout preventers installed on a well.

the equipment or tools at the bottom of the tubing or drill string. The BHA is changed to achieve a certain result.