دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: an attachment to a natural gas line for a burner head that forms a burner port modified for a specific application. The burner tip represents the end of the transportation of natural gas from the wellhead and includes its consumption. By definition, it also includes its consumption as a feedstock (an ingredient in manufactured products) and its use in pipeline operations and other overhead activities.

n: a vessel used to bury a pipeline beneath the seafloor. The barge moves forward by means of anchors. A jet sled is lowered over the pipeline;as the barge pulls it over the pipe, high-pressure jets of water remove soil from beneath the pipe, allowing the pipe to fall into the jetted-out trench.

n: a fishing device made up on a cable-guide assembly to prevent the cable form falling in the hole. It is used in the recovery of wireline tools.

n: fishing equipment used to recover wireline tools stuck in the hole when the wireline or cable is intact. It consists of a cable hanger, spear point rope socket, spearhead overshot, conventional overshots, drill pipe, and elevators.

n: The cement made by bauxite and limestone. This cement is heatproof, non-corrodible and firm in the early stage. Applied in geothermal well and thermal recovery well.

n: a moisture-absorbing chemical compound, or desiccant, CaCI2, used to accelerate setting times in cement and as a drying agent. It is also added to fresh water to increase the waters weight and to give it desirable properties during well completion or workover.

n: CaCl2, a kind of absorption chemical compound.Usually used for calcium mud and heavy weight additive of completion fluid.

CaCl2, a water soluble brine weighting agent.

n: Used for clearing excessive calcium ion in drill fluid to prevent or overcome the additive producing defective effect to drill fluid.

n: the adjustment or standardising of a measuring instrument or of a standard capacity measure, a tank prover, or a pipe prover. Log calibration is based on the use of a permanent calibration facility of the American Petroleum Institute at the University of Houston to establish standard units for nuclear logs.

comparison to a standard and adjustment to fit.

n: see prover tank.

n: An impermeable layer of rock overlying an oil or gas reservoir and preventing the migration of fluids.

a sealing formation of very low permeability that forms the top or the seal in a reservoir.