دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a system or method by which vapors are retained and conserved.

n: (VRU) 1. in petroleum refining, a process unit consisting of a scrubber and a compressor. It is designed to recover petroleum from hydrocarbon vapors and safely to handle toxic gases produced from some wells. 2. in production operations, equipment designed to recover light ends that are released from oil in a stock or other tank.

a device that removes mists and vapors from gas in a tank or enclosure.

n: the partition coefficient, usually designated as K, which is equivalent to y/xm, where y is the mole fraction of a given component in the vapor phase that is in equilibrium with x, the mole fraction of the same component in the liquid phase. K is a function of temperature, pressure, and composition of the particular system.

n: The light be fixed in the pyrex glass shade ,which can prevent catching fire when the light blasting.

n: a tank of conventional shape intended primarily for the storage of volatile liquids such as gasoline and so constructed that it can withstand pressures differing only slightly from atmospheric. Such tanks are equipped with special devices that permit gauging without opening the tank to the atmosphere.

n: 1. the act or process of converting a substance into the vapor phase. 2. the state of substances in the vapor phase.

adj: not susceptible to or affected by vapors. For example, an electrical switch is made vaporproof so that a spark issuing from it will not cause an explosion in the presence of combustible gases (vapors).

n: a Spanish unit of measurement, equal between 31 and 34 inches (78.74 and 86.36 centimetres). In Texas, it is equal to 33.33 inches (84.65 centimetres). Though an ancient unit of measurement, varas often show up on old survey reports in Texas and the southwestern US.

n: Pipe rams that can close over a range of pipe sizes.VBRs cannot be used to hang off the drillstring.

a ram element in a BOP that will fit more than one size of pipe. Commonly a ram element that can seal around the pipe body or the coupling.