METHOD AND APPARATUS FOR CONVEYING FLUIDS, PARTICULARLY USEFUL WITH RESPECT TO OIL WELLS

A method and apparatus for conveying a fluid flowing through a flow passagew ay (16) in a tubing (7), by: introducing into the flow passageway (16) flow zon es of small cross-sectional area (11) alternating with flow zones of large cros s- sectional area (12) to produce high-velocity, low-pressure z...

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Bibliographische Detailangaben
1. Verfasser:	DVEYRIN, DMITRY
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	BLASTING EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING ENGINEERING ELEMENTS AND UNITS FIXED CONSTRUCTIONS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING JOINTS OR FITTINGS FOR PIPES LIGHTING MEANS FOR THERMAL INSULATION IN GENERAL MECHANICAL ENGINEERING MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS PIPES SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	A method and apparatus for conveying a fluid flowing through a flow passagew ay (16) in a tubing (7), by: introducing into the flow passageway (16) flow zon es of small cross-sectional area (11) alternating with flow zones of large cros s- sectional area (12) to produce high-velocity, low-pressure zones alternating with low-velocity, high-pressure zones; and providing abrupt transitions fro m the small cross-sectional area zones (11) to the large cross-sectional area zones (12) to produce a turbulent flow generating swirls and eddies (19) at such transitions. The method and apparatus are particularly useful in oil we ll applications where the fluid is an oil-gas mixture, but could be used in oth er applications where the fluid is a liquid-sand mixture, a gas-liquid mist, or a viscous liquid.