دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: product in which spot samples from top, upper, middle, lower, and outlet agree within the precision of the laboratory tests. Similarly, in pipe- line transfers, spot samples taken at 1, 20, 50, 80, and 99 percent of the total volume agree within the precision of the laboratory tests.

n: the geologic principle that the processes that are at work today on the earth are the same as, or very similar to, the processes that affected the earth in the past. The principle was formulated in 1785 by James Hutton, a Scottish geologist. It became an accepted doctrine with the publication in 1830 of English geologist Charles Lyells book Principles of Geology. Also called gradualism. Compare catastrophism. spills, coordinates individual and state efforts to rescue and rehabilitate oiled birds, and administers federal aid programs. Address: MS 634 Arlington Square, 1849 C Street NW;Washington, DC 20240;(703) 358- 1714. United States Geological Survey (USGS)

n: a coupling device that allows pipes to be connected without being rotated. The mating surfaces are pulled together by a flanged, threaded collar on the union.

n: A kind of coupler of pipe,we don’t need to rotate the pipe when connecting ,through its hoop with inner thread to tighten the matching surface then connect the pipe.

n: 1. a piece or several pieces of equipment performing a complete function (such as a beam pumping unit). 2. the joining of all or substantially all interests in a reservoir or field, rather than a single tract, to provide for development and operation without regard to separate property interests. 3. the area covered by a Unitization Agreement.

n: The average cost of drilling footage per meter,which is the main standard of measuring the cost of drilling engineering.

n: the value of a quantity conventionally accepted as having a numerical value of 1. The unit of measurement of a quantity is fixed in order to make quantitative comparison possible between different values of this same quantity.

n: the oil company in charge of development and production in an oilfield in which several companies have joined to produce the field. Also called crew chief, rig operator.

the oil company identified as the operator in a unitized field.

n: a federal agency involved in platform design. It also works to solve navigation problems. Address: 20 Massachusetts Avenue NW;Washington, DC 20314;(202) 761-0660.

n: (USCG) an agency of the United States Department of Transportation that establishes regulations for offshore vessels and approves standards for plan approval, construction, operation, and inspection of the hull, machinery, electric systems, industrial systems, and safety and lifesaving equipment of mobile offshore drilling units. The agency conducts rig stability tests, awards the original certification of the rig, and conducts annual inspections. It also establishes manning and personnel licensing requirements and investigates casualties. Address: 2100 Second Street SW;Washington, DC 20593;(202) 267-2229 or (202) 366-4000.

n: a series of volumes that is a published compilation of all the laws passed by Congress.