دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

a pressure test of a vessel formed by the entire well or a part of the well. It usually measures the ability of a pressure vessel to hold pressure without leaking at a given pressure.

n: a manually operated, semi- automatic, self-enclosed gauging device that is used for the prevention of vapor losses in the gauging of atmospheric pressure, variable vapor space, and highpressure tanks.

n: the differential pressure in the flowing liquid stream (which will vary with flow rate) between the inlet and outlet of a meter, flow straightener, valve, strainer, length of pipe, and so on.

n: a diagnostic tool used to ascertain whether there is a gas leak in the tubing of a gas lift well. If there is a tubing leak, the pressure on the annulus will equal the pressure on the tubing. pressure-reducing valve n: a valve that lowers the pressure of a fluid flowing through it.

n: a valve that opens at a preset pressure to relieve excessive pres- sures within a vessel or line. Also called a pop valve, relief valve, safety valve, or safety relief valve.

n: a valve that is preset to open when a certain limiting pressure is reached. Such valves are commonly installed on pipes, pumps, etc. sometimes called safety valves or pop-off valves.

a mechanical valve that opens at a preset pressure to relive pressure in a vessel.

n: the source that provided filter loss appratus with pressure vin drilling working.

n: a storage tank constructed to withstand pressure generated by the vapors inside. Such a tank is often spherical, has a wall thickness greater than that of the usual storage tank, and has a concave or a convex top.

calculation of well pressure vs. depth by integrating the pressure gradient for increments of pipe length (MD).

n: any container designed to contain fluids at a pressure substantially greater than atmospheric.