دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

annulus wing valve.

n: the conbul valves, pressure gauges, and chokes assembled at the top of a well to control the flow of oil and gas after the well has been drilled and completed. It is used when reservoir pressure is sufficient to cause reservoir fluids to flow to the surface.

n: The set of valves, spools and fittings connected to the top of a well to direct and control the flow of formation fluids from the well.


the control sections that sits above the basic wellhead. It may contain hangers, master valves, annular valves, wing valves, and gauges or pressure, flow rate or monitoring measurement equipment.

a four-way connection. In a wellhead, a flow cross connects the master valve and the swab valve with two, normally horizontal, connections to the wing valves.

a three-way connection. In a wellhead, a flow cross connects the master valve and the swab valve with the wing valve.

the valve on the flow cross that controls the exit point as produced fluids flow from the tree.

S-shaped flow line off wing valve.

wing valve on a wellhead.

n: a valve on the wing of a Christmas tree. See also wing.

a valve located at the tree, above the master valve, on the flow line.