دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: an instrument to measure bottomhole pressure. Also called bottomhole pressure bomb.

n: a test that measures the reservoir pressure of the well, obtained at a specific depth or at the midpoint of the producing zone. A flowing bottomhole pressure test measures pressure while the well continues to flow;a shut-in bottomhole pressure test measures pressure after the well has been shut in for a specified period of time. See bottomhole pressure. bottomhole pressure gauge.

n: a pressure gauge usually used in lines or manifolds.

n: The pressure gauge installed at the outlet of cement pump. Reflects the changement of pressure in cementing.

n: a panel or board on the rig floor, usually near the drillers position, that allows a person to remotely adjust the size of the opening of a choke installed in the choke manifold. By adjusting the chokes opening, the operator can increase or decrease the amount of back-pressure being held on the well by the choke. Usually, the panel also has pressure gauges and other instruments to help the operator control the well.

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 high-pressure stainless steel or nickel-plated brass chamber with a magnifying window, a sample inlet. a pressure gauge, a tripod socket. a gas outlet. and an angle-mounted mirror. It ascertains dew point by observing the temperature and the pressure at which condensation occurs on and disappears from the mirror.

n: a pressuremeasuring device actuated by two or more pressure-sensitive elements that act in opposition to produce an indication of the difference between two pressures.

n: an indicator, mounted in the mud circulating system, that measures and indicates the amount of pressure in the drill stem. See drill stem.

n: a curve or graph that represents the error of a measuring device such as a pressure gauge as a function either of the quantity measured or of any other quantity that has an influence on the error.