DEVICE FOR PUMPING FLUID FROM A WELLBORE
A pump device for pumping fluid from a wellbore, comprising: a piston member (38) movably arranged in a pump chamber (36) between a first position and a second position, in a manner allowing the piston member to perform a series of pump strokes, whereby at each pump stroke a volume of said fluid is...
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Format | Patent |
Language | English |
Published |
04.02.2016
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Online Access | Get full text |
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Abstract | A pump device for pumping fluid from a wellbore, comprising: a piston member (38) movably arranged in a pump chamber (36) between a first position and a second position, in a manner allowing the piston member to perform a series of pump strokes, whereby at each pump stroke a volume of said fluid is pumped out of the pump chamber (36) by the piston member; a fluid conduit (20) arranged to move the piston member (38) from the first position to the second position by a selected fluid pressure increase in the fluid conduit; an inlet channel (60) connecting the pump chamber to a storage chamber (52) for receiving said volume of fluid from the pump chamber (36); first valve means (62) arranged in the inlet channel for allowing fluid flow from the pump chamber (36) to the storage chamber (52) and for preventing fluid flow from the storage chamber to the pump chamber; pressurising means (57) for applying hydraulic pressure to the volume of fluid in the storage chamber (52); an outlet channel (64) for discharging the volume of fluid from the storage chamber (52) into the fluid conduit (20); second valve means (68) for allowing fluid flow from the storage chamber (52) to the pump chamber (36) and for preventing fluid flow from the pump chamber to the fluid conduit (20); a fluid inlet (46) for inflow of said volume of fluid from the wellbore into the pump chamber (36); and third valve means (50) to prevent outflow of fluid from the pump chamber (36) to the fluid inlet (46). |
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AbstractList | A pump device for pumping fluid from a wellbore, comprising: a piston member (38) movably arranged in a pump chamber (36) between a first position and a second position, in a manner allowing the piston member to perform a series of pump strokes, whereby at each pump stroke a volume of said fluid is pumped out of the pump chamber (36) by the piston member; a fluid conduit (20) arranged to move the piston member (38) from the first position to the second position by a selected fluid pressure increase in the fluid conduit; an inlet channel (60) connecting the pump chamber to a storage chamber (52) for receiving said volume of fluid from the pump chamber (36); first valve means (62) arranged in the inlet channel for allowing fluid flow from the pump chamber (36) to the storage chamber (52) and for preventing fluid flow from the storage chamber to the pump chamber; pressurising means (57) for applying hydraulic pressure to the volume of fluid in the storage chamber (52); an outlet channel (64) for discharging the volume of fluid from the storage chamber (52) into the fluid conduit (20); second valve means (68) for allowing fluid flow from the storage chamber (52) to the pump chamber (36) and for preventing fluid flow from the pump chamber to the fluid conduit (20); a fluid inlet (46) for inflow of said volume of fluid from the wellbore into the pump chamber (36); and third valve means (50) to prevent outflow of fluid from the pump chamber (36) to the fluid inlet (46). |
Author | LUGTMEIER LUBBERTUS KLOMPSMA DERK LUCAS |
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Notes | Application Number: US201414774559 |
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PublicationDate_xml | – month: 02 year: 2016 text: 20160204 day: 04 |
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RelatedCompanies | SHELL OIL COMPANY |
RelatedCompanies_xml | – name: SHELL OIL COMPANY |
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Snippet | A pump device for pumping fluid from a wellbore, comprising: a piston member (38) movably arranged in a pump chamber (36) between a first position and a second... |
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SubjectTerms | BLASTING HEATING LIGHTING MECHANICAL ENGINEERING POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS PUMPS FOR LIQUIDS OR ELASTIC FLUIDS WEAPONS |
Title | DEVICE FOR PUMPING FLUID FROM A WELLBORE |
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