دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a barometer that uses mercury to measure atmospheric pressure. Cistern barometers and siphon barometers are the two types of mercury barometer.

n: a tube mounted at the bottom of a sucker rod pump and inside a gas anchor to provide a conduit into the pump for well fluids that contain little or no gas.

a siphon tune on a downhole pump.

n: see water outlet.

n: an inverted U-shaped tube or pipe through which a liquid flows from a high level to a lower level at atmospheric pressure. For a siphon to work, it must be filled with liquid, thus reducing pressure inside the tube and allowing atmospheric pressure to force liquid to the lower level.

see velocity string.

n: a device used to extract oil and water from a core sample. A solvent vaporizes from a half-filled flask at the bottom of the extractor. Vapor rises to the top chamber and condenses there. The condensed vapor moves to the middle chamber until it is filled. Then the solvent is siphoned back through the sample to clean it.

n: A kind of mechanical inclinometer,which use ink trace of measure card to display inclination and use siphon to control time of ink reaching recording card.

n: a device for assisting in controlling the direction of thermal currents in an indirect heater.