دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: The package of casing head, including air-proof component and gland, used to seal airtight tubing casing annulus.

n: a system of law based on court decisions, or judicial precedent, rather than on legislated statutes or executive decrees. Common law began in England and was later used in English colonies. It is still applied in most of the United States;however, Louisiana operates under the Napoleonic Code. Also called case law.

adj: of or relating to the geologic period from about 400 million to 350 million years ago in the Paleozoic era, or to the rocks formed during this period, including those of Devonshire, England, where outcrops of such rock were first identified.

a geological time between 365 million and 405 million years ago.

n: those maxims and general principles that developed in England to moderate the common law and allow remedy for injury. In the broadest sense, justice.

n: a device used to form a seal around a reciprocating or rotating rod (as in a pump) to prevent fluid leakage. Specifically, the movable part of a stuffing box by which the packing is compressed. See stuffing box.

a seal around a moving rod.

n: material placed around a gland to effect a seal around a reciprocating or rotating rod.

n: a threaded device the sides of which are arranged so that a wrench can be fitted onto them and used to retain the gland packing in place around a rod. See gland packing.

n: the arc or portion of the earths equator intersected between the meridian of a given place and the prime meridian (at Greenwich, England) and expressed either in degrees or in time.

n: a gland arrangement that mechanically or hydraulically seals by pressure. It is used to prevent leakage and waste of gas, oil, or water around a wireline (as when swabbing a well).

n: packing box that made of pressure seal steel wire. Which prevents the leakage of ioil, water or gas around the steel wire.

a seal arrangement on top of a wireline lubricator that prevents loss of oil or gas to the atmosphere.