PRESSURE COMPENSATION FOR A BACKUP WELL PUMP

Primary and secondary pump assemblies are mounted to and supported by a supporting device in a well. The supporting device has a valve that has a first position allowing flow from the primary pump assembly while the secondary pump assembly is in a storage mode, and a second position allowing flow fr...

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Main Author HENDRYX, THOMAS N
Format Patent
LanguageEnglish
French
Published 30.04.2015
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Abstract Primary and secondary pump assemblies are mounted to and supported by a supporting device in a well. The supporting device has a valve that has a first position allowing flow from the primary pump assembly while the secondary pump assembly is in a storage mode, and a second position allowing flow from the secondary pump assembly. A barrier in the intake of the secondary pump assembly blocks entry of well fluid into the secondary pump assembly while the valve is in the first position. The secondary pump is filled with a buffer fluid. A pressure compensator mounted to the secondary pump assembly has a movable element that moves in response to a difference between well fluid pressure on an exterior of the secondary pump assembly and the pressure of the buffer fluid contained in the secondary pump to reduce a pressure differential. Des ensembles de pompe principale et secondaire sont montés sur un dispositif de support dans un puits et sont supportés par celui-ci. Le dispositif de support possède une soupape qui présente une première position permettant l'écoulement depuis l'ensemble de pompe principale pendant que l'ensemble de pompe secondaire est en mode stockage, et une seconde position permettant l'écoulement depuis l'ensemble de pompe secondaire. Une barrière à l'entrée de l'ensemble de pompe secondaire bloque l'entrée de fluide du puits dans l'ensemble de pompe secondaire pendant que la soupape est dans la première position. La pompe secondaire est remplie d'un fluide tampon. Un compensateur de pression monté sur l'ensemble de pompe secondaire comprend un élément mobile qui se déplace en réponse à une différence entre la pression de fluide du puits à l'extérieur de l'ensemble de pompe secondaire et la pression du fluide tampon contenu dans la pompe secondaire pour réduire une différence de pression.
AbstractList Primary and secondary pump assemblies are mounted to and supported by a supporting device in a well. The supporting device has a valve that has a first position allowing flow from the primary pump assembly while the secondary pump assembly is in a storage mode, and a second position allowing flow from the secondary pump assembly. A barrier in the intake of the secondary pump assembly blocks entry of well fluid into the secondary pump assembly while the valve is in the first position. The secondary pump is filled with a buffer fluid. A pressure compensator mounted to the secondary pump assembly has a movable element that moves in response to a difference between well fluid pressure on an exterior of the secondary pump assembly and the pressure of the buffer fluid contained in the secondary pump to reduce a pressure differential. Des ensembles de pompe principale et secondaire sont montés sur un dispositif de support dans un puits et sont supportés par celui-ci. Le dispositif de support possède une soupape qui présente une première position permettant l'écoulement depuis l'ensemble de pompe principale pendant que l'ensemble de pompe secondaire est en mode stockage, et une seconde position permettant l'écoulement depuis l'ensemble de pompe secondaire. Une barrière à l'entrée de l'ensemble de pompe secondaire bloque l'entrée de fluide du puits dans l'ensemble de pompe secondaire pendant que la soupape est dans la première position. La pompe secondaire est remplie d'un fluide tampon. Un compensateur de pression monté sur l'ensemble de pompe secondaire comprend un élément mobile qui se déplace en réponse à une différence entre la pression de fluide du puits à l'extérieur de l'ensemble de pompe secondaire et la pression du fluide tampon contenu dans la pompe secondaire pour réduire une différence de pression.
Author HENDRYX, THOMAS N
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DocumentTitleAlternate COMPENSATION DE PRESSION POUR UNE POMPE DE PUITS DE SECOURS
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Snippet Primary and secondary pump assemblies are mounted to and supported by a supporting device in a well. The supporting device has a valve that has a first...
SourceID epo
SourceType Open Access Repository
SubjectTerms BLASTING
EARTH DRILLING
EARTH DRILLING, e.g. DEEP DRILLING
FIXED CONSTRUCTIONS
HEATING
LIGHTING
MECHANICAL ENGINEERING
MINING
NON-POSITIVE DISPLACEMENT PUMPS
OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS
PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
WEAPONS
Title PRESSURE COMPENSATION FOR A BACKUP WELL PUMP
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