دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: the amount of internal pressure, or stress, required to burst casing or other pipe. When the pipes internal pressure is greater than its external pressure, the pipe bursts.

n: the pressure at which a manufacturer has determined that a pipe or vessel will burst from internal pressure.

the actual minimum burst pressure derated by a safety factor. The derated burst is used as a maximum when pumping.

n: a pipe or vessels ability to withstand rupture from internal pressure.

n: See internal pressure strength.

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: in pipeline construction, a pipestraddling device, fitted with nozzles, spoil from beneath the pipe is removed and pumped to one side of the trench. The line then sages naturally into position in the trench.

n: 1. a pipe fitting on which the external thread is larger than the internal thread to allow two pipes of different sizes to be connected.2. a removable lining or sleeve inserted or screwed into an opening to limit its size, resist wear or corrosion, or serve as a guide.

n: The coupler used to connect different size of pipes. One end is male thread and the other is female thread.

n: a paraffin hydrocarbon, C4H10 , that is a gas in atmospheric conditions but is easily liquefied under pressure. It is a constituent of liquefied petroleum gas. See commercail butane, field-grade butane, normal butane.

a four carbon chain alkane, may be a liquid in the reservoir, but vaporizes as pressure is released. Part of the natural gas liquid components.

n pl: the quantity of butane extracted in a precessing plant for wich lease settlement is included in the settlement made for natural gasoline by virtue of the gasoline settlements being used on a higher vapour pressure natural gasoline actually extracted. Sometimes called free butane or excess butanes.

a welded connection using two pipe ends, cut straight across and welded together with minimum circumferential contact.