دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: The process in which the bit continually breaks the formation and deepend the wellbore. It is controled by the driller who operates the brake crank and set down the drilling string to keep definite weight on bit.

n: an agreement between a producer and a purchaser to make an advance payment for gas to be delivered at a future date.

n: The new set of journal bearing insert bit presented by America Hughes Company. It has the longer life and higher ROP than many kinds of former bits.

n: a fog caused by the movement of warm, moist air over a surface with a temperature less than the dew point of the air. Also called sea fog.

n: a method of asserting and gaining title to property against other claimants, including the owner of record. The claim through adverse possession must include certain acts (as required by statute) over an uninterrupted interval of time. It must also be, in most states, open," "notorious," and "hostile."

adj: deposited by wind.

n: a sediment deposited by wind.

n: Made by adding gas into common water base drilling fluid. Mainly used to protect circulation loss in low pressure formation and leakage zone.

n: the injection of air or gas into a liquid. In the oil industry a common form of aeration is the injection of natural gas into reservoir liquids standing in a well. Aeration with natural gas reduces the density of the liquids and allows declining reservoir pressure to lift the liquids. See gas lift.

n: The technique of injecting air or gas in varying amounts into a drilling fluid for the purpose of reducing hydrostatic head. See also Air Cutting.

intoduction of air.

n: see air-cooled exchanger. aerial river crossing n: a river crossing technique in which a pipeline is either suspended by cables over a waterway or attached to the girders of a bridge designed to carry vehicular traffic.