دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: an arrangement of piping and special valves, called chokes. In drilling, mud is circulated through a choke manifold when the blowout preventers are closed. In well testing, a choke manifold attached to the wellhead allows flow and pressure control for test components down- stream.

n: A set of high-pressure valves and associated piping that usually includes at least two adjustable chokes, arranged such that one adjustable choke may be isolated and taken out of service for repair and refurbishment while well flow is directed through the

a set of valves and/or chokes used to control drilling fluid returns on a drilling well or, in a few cases, used to control flow from a high rate well where the chokes may be in parallel or series.

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.

n: a compound in which chromium has a valence of 6, e.g., sodium bichromate. Chromate may be added to drilling fluids eimer directly or as a constituent of chrome lignites or chrome lignosulfonates. In certain areas, chromate is widely used as a corrosion inhibitor, often in conjunction with lime.

n pi: a laboratory analysis of a gas sample to determine me composition of me gas. The analysis will determine the percentage of each component of the gas;this percentage can be used to calculate liquid volume percentage, GPMs, Btu, and gravity.

n: The group setting of whirling current separator groups and vibrosieve.

n: A special liquid pressure-sensing piston valve installed in casing guide shoe or casing float collar.

n: the volume flow rate of the circulating drilling fluid usually expressed in gallons or barrels per minute in the United States. Elsewhere, it is expressed in cubic metres per minute.

n: The circulating rate of drill fluid in the drilling programe.