Casing head valve assembly through which a well is produced.
An assembly of valves at each wellhead to control and shut off the flow to or from the well.
n: the control valves, pressure gauges, and chokes assembled at the top of a well to control flow of oil and/or gas after the well has been drilled and completed. It is used when reservoir pressure is sufficient to cause reservoir fluids to rise to the surface.
The valves and fittings installed at the top of a gas or oil well to control and direct the flow of well fluids.
An assembly of valves, gauges, and chokes mounted on a well casinghead to control production and the flow of oil to the pipelines.
a type of pipeline that juts up from the ground and allows access to a variety of pressures and pipes
Branching series of pipes, gauges and valves on top end of each production well to control flow of oil or gas.
an assembly of control valves, gauges and chokes that control oil and gas flow in a completed well. Christmas trees installed on the ocean floor are referred to as subsea, or “wet,†trees. Christmas trees installed on land or platforms are referred to as “dry†trees.
An assembly of valves mounted on the casing through which the well is produced. The valves also allow testing of the well.
The system of pipes, valves, gauges and related equipment that is located on the well at ground level and that controls the flow of gas and other petroleum products produced from the well.
The arrangement of pipes and valves at the wellhead which controls the flow of oil and gas and prevents blowouts.
The assembly of valves, pipes and fittings used to control the flow of oil and gas from a well.
The valve assembly at the top of tubing strings and casing of a natural gas well (or a free-flowing crude oil well) to provide primary pressure reduction, production rate control and shut-in capabilities.
Valves, pipes, and fittings assembled at the top of a completed well used to control the flow of oil and gas.
control valves, gauges, and chokes at the surface to control oil and gas flow in a completed well.
The manifold, or arrangement of pipework connections and valves which is installed on the wellhead prior to production. As well as outlets for production, the tree will provide for the injection of mud to "kill" the well, and for the insertion of downhole maintenance tools and wirelines.
The assembly of fittings and valves on the top of the casing which control the production rate of oil.
A control device for oil and gas wells. It is installed at the top of the well and consists of an assembly of fittings and valves. Synonym: wellhead.
A conditoning (oil) pattern. The oil is tapered from right to left and long ways down the lane, tapering into a point. The pattern if viewed from above would resemble a christmas tree with the base beginning at the foul line. The taper may be varying differences.
the system of valves and controls placed at the wellhead.
In petroleum and natural gas extraction, a christmas tree is an assembly of valves, spools and fittings for an oil well, named for its resemblance to a decorated tree. The term "Christmas Tree" has now become something of a misnomer as complexity has increased. Especially in subsea applications the resemblance no longer exists given the frame and support systems into which the main valve block is integrated.