US20130224053A1 - Coaxial progressive cavity pump - Google Patents

Coaxial progressive cavity pump Download PDF

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Publication number
US20130224053A1
US20130224053A1 US13/596,657 US201213596657A US2013224053A1 US 20130224053 A1 US20130224053 A1 US 20130224053A1 US 201213596657 A US201213596657 A US 201213596657A US 2013224053 A1 US2013224053 A1 US 2013224053A1
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United States
Prior art keywords
pump
progressive cavity
rotor
oil
cavity pump
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
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US13/596,657
Inventor
Jan Hendrik Ate Wiekamp
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Individual
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Individual
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Priority to US13/596,657 priority Critical patent/US20130224053A1/en
Publication of US20130224053A1 publication Critical patent/US20130224053A1/en
Abandoned legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
    • F04C2/107—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member with helical teeth
    • F04C2/1071—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member with helical teeth the inner and outer member having a different number of threads and one of the two being made of elastic materials, e.g. Moineau type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2240/00—Components
    • F04C2240/60—Shafts
    • F04C2240/603—Shafts with internal channels for fluid distribution, e.g. hollow shaft

Definitions

  • the invention is to be applied as pump, with an internal channel through the rotor of the pump, for supplying heating or pressure by steam to the supply side of the pump.
  • Old, almost depleted, oil wells can be revived if steam is injected. Previously at least one additional steam injection well would be necessary. With this solution single wells can be continuously stimulated by steam injection through, and below, the pump, to heat the formation and to heat the produced oil, thus keeping the viscosity low and the oil flowing more freely. With the same reasoning, the pump can be applied for tarsand and other heavy oil wells.
  • the US alone has over 500,000 oil wells, with an average production in 2010 of only 10 barrels/day. About 300,000 wells are marginal wells with an average of about only 2 bbl/day production. Still just the marginal fields together produce about 700 million bbl/year, about half the imports from Saudi-Arabia. Doubling the marginal field production would be helping energy independence, as well as an economic stimulus.
  • a non-Moineau progressive cavity pump is known from my patent NL 2004120 (20, Jul. 2011). This pump can be used with all metal parts, at much higher rpm's, and with much better balancing, thus much less vibrations.
  • the pump is based as on a central oval rotor, and sections of housing with 2 rockers, helically spiraling around this rotor, thus creating 8 progressing cavities.
  • a feature not obvious from above patent is the lack of need for an universal joint or gear, as needed with Moineau pumps. And as such it is not obvious a simple opening inside the rotor can act as feed-through for steam, gas or liquid. Thus steam can be pumped below the pump, heating the formation, letting oil flow more freely, and keeping oil flowing more freely up the well.
  • the pump has to be connected to a coaxial pipe, with the inner pipe transporting hot steam or solvent through the rotor, and the annulus transporting pumped oil.
  • FIG. 1 front view of hollow elliptical rotor and two straight-edged rockers
  • FIG. 2 exploded view with most of the housing sections removed
  • FIG. 1 shows a cross-section of a machine comprising in essence of one rotor ( 3 ), two rockers ( 2 ) and a housing ( 1 ), creating inside the housing eighth separate variable volumes.
  • the hollow rotor ( 3 ) has a cavity ( 4 ) which allows transport through the rotor, for example for injecting hot steam from the surface below the pump.
  • FIG. 2 shows an exploded view with all but 5 housing sections removed. It shows how the rockers are wrapped around the rotor.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

This invention relates a progressive cavity pump with a central feed-through for supplying steam, gas or liquids to the supply side of the pump. For the oil industry this invention enables single well stimulation. Steam can be supplied from the surface to the production zone or below through the central feed-through, heating or pressurizing oil and the surrounding formation, and facilitating production. In heavy oil fields solvents can be pumped down as well. Oil can be pumped up by the progressive cavity pump through the annulus of the connecting coaxial pipe.

Description

    TECHNOLOGY
  • The invention is to be applied as pump, with an internal channel through the rotor of the pump, for supplying heating or pressure by steam to the supply side of the pump.
  • 1. Objects of the Invention
  • Old, almost depleted, oil wells can be revived if steam is injected. Previously at least one additional steam injection well would be necessary. With this solution single wells can be continuously stimulated by steam injection through, and below, the pump, to heat the formation and to heat the produced oil, thus keeping the viscosity low and the oil flowing more freely. With the same reasoning, the pump can be applied for tarsand and other heavy oil wells.
  • 2. Background of the Invention
  • The US alone has over 500,000 oil wells, with an average production in 2010 of only 10 barrels/day. About 300,000 wells are marginal wells with an average of about only 2 bbl/day production. Still just the marginal fields together produce about 700 million bbl/year, about half the imports from Saudi-Arabia. Doubling the marginal field production would be helping energy independence, as well as an economic stimulus.
  • A non-Moineau progressive cavity pump is known from my patent NL 2004120 (20, Jul. 2011). This pump can be used with all metal parts, at much higher rpm's, and with much better balancing, thus much less vibrations. The pump is based as on a central oval rotor, and sections of housing with 2 rockers, helically spiraling around this rotor, thus creating 8 progressing cavities.
  • A feature not obvious from above patent is the lack of need for an universal joint or gear, as needed with Moineau pumps. And as such it is not obvious a simple opening inside the rotor can act as feed-through for steam, gas or liquid. Thus steam can be pumped below the pump, heating the formation, letting oil flow more freely, and keeping oil flowing more freely up the well. For this the pump has to be connected to a coaxial pipe, with the inner pipe transporting hot steam or solvent through the rotor, and the annulus transporting pumped oil.
    • BRIEF DESCRIPTION OF THE DRAWINGS
  • FIG. 1 front view of hollow elliptical rotor and two straight-edged rockers
  • FIG. 2 exploded view with most of the housing sections removed
    •  DESCRIPTION OF THE DRAWINGS
  • FIG. 1 shows a cross-section of a machine comprising in essence of one rotor (3), two rockers (2) and a housing (1), creating inside the housing eighth separate variable volumes. The hollow rotor (3) has a cavity (4) which allows transport through the rotor, for example for injecting hot steam from the surface below the pump.
  • FIG. 2 shows an exploded view with all but 5 housing sections removed. It shows how the rockers are wrapped around the rotor.

Claims (3)

1. A progressive cavity pump consisting of in essence one axially uniform rotor of oval shape and sets of two rockers with straight-edged shape and housing, with an isolated cavity through the rotor connecting both sides of the pump, to be used for supplying gas or liquid to the supply side of the pump.
2. A progressive cavity pump consisting of in essence one axially uniform rotor of oval shape and two rockers with straight-edged shape and one housing, with an isolated cavity through the rotor connecting both sides of the pump, to be used for supplying gas or liquid to the supply side of the pump.
3. A progressive cavity pump of claim 1 or 2, where the shape of the rotor changes in axial direction to allow for compression or decompression.
US13/596,657 2011-10-03 2012-08-28 Coaxial progressive cavity pump Abandoned US20130224053A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US13/596,657 US20130224053A1 (en) 2011-10-03 2012-08-28 Coaxial progressive cavity pump

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201161542502P 2011-10-03 2011-10-03
US13/596,657 US20130224053A1 (en) 2011-10-03 2012-08-28 Coaxial progressive cavity pump

Publications (1)

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US20130224053A1 true US20130224053A1 (en) 2013-08-29

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US13/596,657 Abandoned US20130224053A1 (en) 2011-10-03 2012-08-28 Coaxial progressive cavity pump

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Citations (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US709773A (en) * 1902-03-08 1902-09-23 Oliver C Jones Rotary engine.
US970942A (en) * 1909-12-02 1910-09-20 William S Moses Rotary engine.
US1660183A (en) * 1926-10-21 1928-02-21 Ella M Freeman Rotary pump
US1972302A (en) * 1932-11-08 1934-09-04 Multicycol Pump & Engine Corp Rotary pump, compressor, or the like
US1983033A (en) * 1932-11-30 1934-12-04 Multicycol Pump & Engine Corp Rotary pump, compressor, or the like
US2006298A (en) * 1933-04-21 1935-06-25 Multicycol Pump & Engine Corp Rotary pump compressor, engine, and the like
US2277225A (en) * 1941-07-21 1942-03-24 Edward H Green Internal combustion engine
US2660402A (en) * 1949-12-19 1953-11-24 Verbol J Devine Core drilling apparatus
US3186385A (en) * 1960-09-20 1965-06-01 Hamilton Walker Rotary Engines Rotary internal combustion engines
US3187507A (en) * 1961-11-20 1965-06-08 Jose Ignacio Martin Artajo Thermodynamic machine
US3245389A (en) * 1960-11-02 1966-04-12 Korf Otto Internal combustion engine with disk piston
US3289654A (en) * 1962-11-22 1966-12-06 Geiger Johann Rotary piston type internal combustion engine
US3289652A (en) * 1963-12-12 1966-12-06 Beteiligungs & Patentverw Gmbh Rotary displacement machine
US3295505A (en) * 1963-05-31 1967-01-03 Jordan Alfred Rotary piston apparatus
US3302870A (en) * 1966-02-25 1967-02-07 Gen Motors Corp Rotary compressor
US3636930A (en) * 1969-03-28 1972-01-25 Fukumatsu Okada Rotary engine
US3981645A (en) * 1974-08-01 1976-09-21 Hans Herzner Displaced piston machine
US4055156A (en) * 1976-03-12 1977-10-25 Gundlach, S.A. Rotary engine
US4144866A (en) * 1977-11-14 1979-03-20 Robert Hakner Internal combustion rotary engine
US5417281A (en) * 1994-02-14 1995-05-23 Steven M. Wood Reverse Moineau motor and pump assembly for producing fluids from a well
US5518379A (en) * 1994-01-13 1996-05-21 Harris; Gary L. Downhole motor system
US5540199A (en) * 1994-06-01 1996-07-30 Penn; Jay P. Radial vane rotary engine
US5785509A (en) * 1994-01-13 1998-07-28 Harris; Gary L. Wellbore motor system
US5787856A (en) * 1997-05-19 1998-08-04 Dunton; Galen M. Rotary engine
US6120272A (en) * 1998-08-10 2000-09-19 Gallardo; Arturo Pump-motor for fluid with elliptical members
US6457958B1 (en) * 2001-03-27 2002-10-01 Weatherford/Lamb, Inc. Self compensating adjustable fit progressing cavity pump for oil-well applications with varying temperatures
US6907925B2 (en) * 2002-03-20 2005-06-21 Sheldon Cote PC pump inlet backwash method and apparatus
US6920946B2 (en) * 2001-09-27 2005-07-26 Kenneth D. Oglesby Inverted motor for drilling rocks, soils and man-made materials and for re-entry and cleanout of existing wellbores and pipes
US20090226336A1 (en) * 2008-03-07 2009-09-10 Kurt David Murrow Axial flow positive displacement turbine
US20100038142A1 (en) * 2007-12-18 2010-02-18 Halliburton Energy Services, Inc. Apparatus and method for high temperature drilling operations
US20100242897A1 (en) * 2009-03-25 2010-09-30 Lumenium Llc Inverse displacement asymmetric rotary (idar) engine
US20100260636A1 (en) * 2007-11-02 2010-10-14 Grundfos Management A/S Moineau pump

Patent Citations (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US709773A (en) * 1902-03-08 1902-09-23 Oliver C Jones Rotary engine.
US970942A (en) * 1909-12-02 1910-09-20 William S Moses Rotary engine.
US1660183A (en) * 1926-10-21 1928-02-21 Ella M Freeman Rotary pump
US1972302A (en) * 1932-11-08 1934-09-04 Multicycol Pump & Engine Corp Rotary pump, compressor, or the like
US1983033A (en) * 1932-11-30 1934-12-04 Multicycol Pump & Engine Corp Rotary pump, compressor, or the like
US2006298A (en) * 1933-04-21 1935-06-25 Multicycol Pump & Engine Corp Rotary pump compressor, engine, and the like
US2277225A (en) * 1941-07-21 1942-03-24 Edward H Green Internal combustion engine
US2660402A (en) * 1949-12-19 1953-11-24 Verbol J Devine Core drilling apparatus
US3186385A (en) * 1960-09-20 1965-06-01 Hamilton Walker Rotary Engines Rotary internal combustion engines
US3245389A (en) * 1960-11-02 1966-04-12 Korf Otto Internal combustion engine with disk piston
US3187507A (en) * 1961-11-20 1965-06-08 Jose Ignacio Martin Artajo Thermodynamic machine
US3289654A (en) * 1962-11-22 1966-12-06 Geiger Johann Rotary piston type internal combustion engine
US3295505A (en) * 1963-05-31 1967-01-03 Jordan Alfred Rotary piston apparatus
US3289652A (en) * 1963-12-12 1966-12-06 Beteiligungs & Patentverw Gmbh Rotary displacement machine
US3302870A (en) * 1966-02-25 1967-02-07 Gen Motors Corp Rotary compressor
US3636930A (en) * 1969-03-28 1972-01-25 Fukumatsu Okada Rotary engine
US3981645A (en) * 1974-08-01 1976-09-21 Hans Herzner Displaced piston machine
US4055156A (en) * 1976-03-12 1977-10-25 Gundlach, S.A. Rotary engine
US4144866A (en) * 1977-11-14 1979-03-20 Robert Hakner Internal combustion rotary engine
US5518379A (en) * 1994-01-13 1996-05-21 Harris; Gary L. Downhole motor system
US5785509A (en) * 1994-01-13 1998-07-28 Harris; Gary L. Wellbore motor system
US5417281A (en) * 1994-02-14 1995-05-23 Steven M. Wood Reverse Moineau motor and pump assembly for producing fluids from a well
US5540199A (en) * 1994-06-01 1996-07-30 Penn; Jay P. Radial vane rotary engine
US5787856A (en) * 1997-05-19 1998-08-04 Dunton; Galen M. Rotary engine
US6120272A (en) * 1998-08-10 2000-09-19 Gallardo; Arturo Pump-motor for fluid with elliptical members
US6457958B1 (en) * 2001-03-27 2002-10-01 Weatherford/Lamb, Inc. Self compensating adjustable fit progressing cavity pump for oil-well applications with varying temperatures
US6920946B2 (en) * 2001-09-27 2005-07-26 Kenneth D. Oglesby Inverted motor for drilling rocks, soils and man-made materials and for re-entry and cleanout of existing wellbores and pipes
US6907925B2 (en) * 2002-03-20 2005-06-21 Sheldon Cote PC pump inlet backwash method and apparatus
US20100260636A1 (en) * 2007-11-02 2010-10-14 Grundfos Management A/S Moineau pump
US20100038142A1 (en) * 2007-12-18 2010-02-18 Halliburton Energy Services, Inc. Apparatus and method for high temperature drilling operations
US20090226336A1 (en) * 2008-03-07 2009-09-10 Kurt David Murrow Axial flow positive displacement turbine
US20100242897A1 (en) * 2009-03-25 2010-09-30 Lumenium Llc Inverse displacement asymmetric rotary (idar) engine

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