دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a transport of gas by displacement against the flow on a single pipeline, so that the gas is redelivered upstream of its point of receipt.

a build-up of particles on the upstream side of a filter that improves the filter’s ability to remove particles from fluid (will also raise the differential pressure across the filter).

valve designed for blocking the fluid in upstream and downstream directions.

n: usually a small pump mounted upstream of anod1er pump that charges the fluid being pumped prior to the fluids reaching the main pump.

n: a method for completing a well in which tubing is set inside 4.5-inch (1.4-centimetre) or larger casing. Compare miniaturised completion. conventional coupling n: piping configuration that uses ten diameters of straight full pipe upstream of a meter and straightening vanes;the downstream contains five or more full pipe diameters.

n: A kind of well completion that oil tube is tripped in above the casing whose diameter is 4 1/2.

n: the difference between two fluid pressures;for example, the difference between the pressure in a reservoir and in a well bore drilled in the reservoir, or between atmospheric pressure at sea level and at 10,000 feet (3,048 metres). Also called pressure differential.

n: Pressure difference between two pionts in a system

the difference in pressure between upstream and downstream of a measurement point.

abbr: 1. exploration and production.2.those activities that include subsurface studies, seismic and geophysical activities, locating underground hydrocarbon deposits, drilling for hydrocarbon deposits and bringing hydrocarbons to the surface, well completion, and field processing of hydrocarbons prior to entering the pipeline.3. the upstream end of the petroleum industry.

exploration and production.

Reserves consistent with the cost recovery plus profit hydrocarbons that are recoverable under the terms of the contract or lease are typically reported by the upstream contractor (SPE).

n: an important part of the primary element of an orifice meter installation that must create a known flow pattern for the fluid as it reaches the plate. It is the straight upstream pipe of the same size between the orifice and nearest pipe fitting and the similar downstream pipe between the orifice and nearest pipe fitting.

a firm that operates in both the upstream and downstream areas of the energy industry.