دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

a quick opening, low pressure valve, common on large openings through which solids will move, that allows high flow rate when open.

n: trade name for appratus for cleaning and freeing oil tanks of gas by means of high-pressure jets of hot water. It consistes essentially of opposed double nozzles, which rotate slowly about their horizontal and vertical axes and project two streams of hot water at a pressure of 175 psi (1,206 kilo pascals) against all inside surfaces of the deck, bulkheads, and shell plating.

ball valve.

n: 1. a pipe connction around a valve or other control mechanism that is installed to permit passage of fluid through the line while adjustments or repairs are being made on the control. 2. a delivery of gas to a customer by means of a pipeline other than that customers traditional supplier. For example, delivery of gas to an end user directly off a transmission pipeline without moving the gas through the end users traditional local distribution company supplier.

n: Usually refers to a pipe connection around a valve or other control mechanism. A by-pass is installed in such cases to permit passage of fluid through the line while adjustments or repairs are made on the control that is by-pass.

n: The valves that make vibrosieve short out. The drill fluid which returns from wellbore enters into circulating system directly without sieving handling.

n: a valve that permits flow around a control valve, a piece of equidment, or a system.

n: 1. a rope of wire, hemp, or other strong fibers;often, but not always, personnel in the petroleum industry call it cable wire rope. 2. braided wire used to conduct electricity, often called power cable.

n: See wire rope.

one of various braided cables, with or without isolated conductance wires, used for well operations.

n: A cylindrical barrel of which the valve is installed in the bottom. Bailing the cuttings and drilling fluid in the bottom by tripped into the wellbore by wire rope.

an early drilling rig that uses a heavy chisel bit on a cable, dropped vertically, to pound through rocks.