Pump Mounted In Vertical Tubular Flow Conduit Removable As Unit By Driving Rod Manipulation Patents (Class 417/448)
  • Patent number: 9885353
    Abstract: A reciprocating well pump assembly has a barrel and a piston reciprocally carried within the barrel between up stroke and down stroke positions. A travelling valve moves with the piston and has a closed position during the up stroke an open position during the down stroke. A relief port extends from a bore of the piston below the travelling valve into the barrel. A valve sleeve mounted around the body of the travelling valve is axially movable between a closed position, closing the tubular body relief port, and an open position, communicating well fluid in the barrel with the well fluid in the bore of the piston. When nearing the top of the stroke, the valve sleeve abuts a stop in the barrel. Continued upward movement of the piston causes the valve sleeve to open the relief port.
    Type: Grant
    Filed: July 7, 2015
    Date of Patent: February 6, 2018
    Assignee: Baker Hughes, a GE Company, LLC
    Inventors: Steven K. Tetzlaff, Lance T. Robinson, Gary L. James
  • Patent number: 9011110
    Abstract: A downhole pumping assembly has a tubing string with plural barrels which are arranged in-line with the tubing. The tubing string has a seating location adjacent to each barrel. A standing valve arrangement, which includes a standing valve and a seating device, is located with the standing valve adjacent to the lower end of one of the barrels. A plunger has a traveling valve that is located for reciprocation within the one barrel. The plunger has a clearance with each of the barrels so as to form a fluid seal. The plunger reciprocates inside the barrel so as to lift fluid to the surface. Over time, the barrel will exhibit wear. Instead of pulling the entire tubing string to replace the barrel, the standing valve and the plunger are relocated to one of the other barrels located in the tubing string and reciprocation is resumed to resume pumping.
    Type: Grant
    Filed: October 24, 2012
    Date of Patent: April 21, 2015
    Assignee: Harbison-Fischer, Inc.
    Inventor: Benny J. Williams
  • Patent number: 8142939
    Abstract: In a fuel cell unit that generates electric power using fuel gas supplied via an anode gas passage and air supplied via a cathode gas passage, an anode-off gas passage is connected to the downstream side of the anode gas passage. An orifice is provided at the anode-off gas passage and anode-off gas is discharged to the downstream side via the orifice.
    Type: Grant
    Filed: April 15, 2008
    Date of Patent: March 27, 2012
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Yasuhiro Nonobe
  • Patent number: 8128383
    Abstract: A downhole sucker rod pump including a brush disposed between the downhole pump barrel and the well tubing to provide an effective seal which is not damaged during the insertion and/or withdrawal of the pump. The bush has a sufficient density and stiffness, such that it provides a sufficient interference fit between the pump barrel and the well tubing, that which retains its integrity with damage during the insertion and withdrawal process of a deep well.
    Type: Grant
    Filed: April 3, 2009
    Date of Patent: March 6, 2012
    Inventor: Kenny Pulliam
  • Publication number: 20100254839
    Abstract: A downhole sucker rod pump including a brush disposed between the downhole pump barrel and the well tubing to provide an effective seal which is not damaged during the insertion and/or withdrawal of the pump. The bush has a sufficient density and stiffness, such that it provides a sufficient interference fit between the pump barrel and the well tubing, that which retains its integrity with damage during the insertion and withdrawal process of a deep well.
    Type: Application
    Filed: April 3, 2009
    Publication date: October 7, 2010
    Inventor: Kenny Pulliam
  • Patent number: 7604464
    Abstract: A reciprocating downhole pump has a gas separator located at its bottom end. The separator forms a chamber that is expanded and contracted when the pump is reciprocated. Expansion and contraction of the chamber occurs by either the plunger reciprocating in the chamber or a piston coupled to the plunger reciprocating in the chamber. The chamber has an orifice therein so that during reciprocation fluid flows in and out of the orifice. The orifice is sized so as to subject the fluid to a pressure drop, wherein gas in the fluid is separated from the liquid.
    Type: Grant
    Filed: July 22, 2005
    Date of Patent: October 20, 2009
    Assignee: Harbison-Fischer, Inc.
    Inventor: Benny J. Williams
  • Patent number: 6986651
    Abstract: A pump priming apparatus including a housing through which fluid object material may be urged to flow, the housing including an intake portion and a pumping portion downstream from the intake portion. The apparatus further includes a piston assembly carried for reciprocation in the housing, the piston assembly and the housing being configured such that a partial vacuum is developed in the pumping portion of the housing as the piston assembly moves through the pumping portion of the housing toward the intake portion of the housing and such that the partial vacuum is substantially released upon the movement of the piston assembly into the intake portion of the housing, thereby causing the fluid object material in the intake portion of the housing to flow into the pumping portion of the housing.
    Type: Grant
    Filed: June 10, 2002
    Date of Patent: January 17, 2006
    Assignee: Balcrank Products, Inc.
    Inventors: Claude R. Whisenant, Rodney W. Burnette
  • Patent number: 6755628
    Abstract: The invention is a component of a subsurface traveling barrel bottom anchor pump comprising a traveling valve assembly which includes: a cylindrical valve body having a lower section, the lower section having a central bore therethrough and external threads which interact with a threaded connection on a traveling barrel to removably attach the valve body to the traveling barrel; an upper section having a rod connection externally threaded for attachment to a pumping rod; a center section having a fishing neck portion and cage portion; a valve cage accommodated entirely within the internal portion of the cage portion; a valve ball positioned within the valve cage; a valve seat abutting the valve cage; and a ball and seat plug threaded into the lower section of the valve body for retaining the valve seat in the valve body.
    Type: Grant
    Filed: July 16, 2002
    Date of Patent: June 29, 2004
    Assignee: Howell's Well Service, Inc.
    Inventor: Kenneth Howell
  • Publication number: 20040057854
    Abstract: A flange attaching section has a flange supporting section and a movable section, and the movable section can approach the flange supporting section and separate therefrom due to rotational moving. Even if a flange section of a barrel of a syringe has various thickness, the flange section is easily attached between the flange supporting section and the movable section, and although the attachment is easy, the flange section comes in pressure contact with the flange supporting section in the attached state. Even if, therefore, the flange section of the barrel of the syringe has various thickness, a syringe pump, in which moving of the barrel of the syringe during infusion is prevented securely and the infusion is executed at an accurate speed, is provided.
    Type: Application
    Filed: July 30, 2003
    Publication date: March 25, 2004
    Applicant: Atom Medical Corporation
    Inventors: Keisuke Wakabayashi, Tatsuhiko Seki, Kazuo Matsubara
  • Patent number: 6352107
    Abstract: An elongated pump rod or sinkerbar for use in a pump rod string for a downhole reciprocating well pump is provided with an elongated sleeve of high density or ultra high density polyethylene over a major portion of the length of the sinkerbar to minimize wear on the sinkerbar and a well tubing string as a consequence of deflection of the sinkerbar into engagement width the tubing string and to minimize frictional drag on the pump actuating mechanism as a result of such engagement. The polyethylene sleeve may be assembled over the sinkerbar by apparatus including an elongated hydraulic actuator which may be configured to push a sinkerbar into the sleeve while the sleeve is held stationary within a support tube, or by holding the sinkerbar stationary on a support and pulling the sleeve over the sinkerbar and from a continuous length of tubing from which the sleeve is formed.
    Type: Grant
    Filed: February 11, 1999
    Date of Patent: March 5, 2002
    Assignee: Allen & Bennett, Inc.
    Inventors: Donald W. Bennett, Johnny B. Fayo, Scott W. Long
  • Patent number: 5749709
    Abstract: A positive displacement pump comprising a housing which defines a pump inlet chamber in fluid communication with a pump inlet port and a pump outlet chamber in fluid communication with a pump outlet port. Disposed within the housing is a wobble plate which is adapted to pump fluid from the inlet chamber to the outlet chamber. Selectively insertable into and removable from within the housing is a modular pump component. The modular pump component is adapted to modify the operational characteristics of the pump when inserted into the pump housing.
    Type: Grant
    Filed: December 5, 1996
    Date of Patent: May 12, 1998
    Inventor: Benjamin R. Du
  • Patent number: 5697768
    Abstract: A method and apparatus is disclosed which reduces or removes axial loads on the drive string of a rotary downhole pump, i.e. tensile loads due to the hydrostatic load of the pumped liquid on the pump rotor, and/or at least part of the weight of the drive string, or thrust loads caused during pressurized fluid injection operations by backpressure of injected fluid on the pump rotor. This substantially prevents drive string/production tubing friction, wear and/or buckle in downhole rotary pumping arrangements operated in straight or curved well bores. When used in connection with fluid production pumping arrangements, the apparatus reduces the friction between the drive string and the production tubing of a downhole rotary pump for the pumping of well fluids which pump has a pump rotor connected to the drive string and is operated in a well bore. When used in connection with fluid injection pumping arrangements, the apparatus prevents drive string buckle, especially in curved well bore situations.
    Type: Grant
    Filed: March 1, 1996
    Date of Patent: December 16, 1997
    Assignee: Kuda Industries, Inc.
    Inventor: Robert A. R. Mills
  • Patent number: 5667369
    Abstract: This invention relates to a system for pumping an effluent that is produced by a geological formation, in which a rotary pump (3) is installed and driven in rotation by a continuous tube (12) that rises up to the surface. The tube makes it possible to inject a fluid, for example, a liquefier or a lubricant. This invention also relates to a pumping method in which rotor (24) of the pump is installed with a continuous tube (12), of the "coil tubing" type.
    Type: Grant
    Filed: November 27, 1995
    Date of Patent: September 16, 1997
    Assignee: Institut Francais Du Petrole
    Inventor: Henri Cholet
  • Patent number: 5654504
    Abstract: The present invention relates to a downhole hydraulic pump monitoring system and more specifically relates to a system which detects and/or anticipates pump malfunctions by processing readings taken by a pressure transmitter on the operating pressure and the stroke rate of the downhole hydraulic pump where decisions are reached regarding positive pump operation or inefficient pump malfunction based upon comparisons between the instantaneous pressure readings of the pressure transmitter and a time-averaged operating pressure of the power fluid taken over a multitude of pump strokes.
    Type: Grant
    Filed: October 13, 1995
    Date of Patent: August 5, 1997
    Inventors: Clark Allen Smith, deceased, by Rhoda Sue Smith, legal representative
  • Patent number: 5613834
    Abstract: A positive displacement pump comprising a housing which defines a pump inlet chamber in fluid communication with a pump inlet port and a pump outlet chamber in fluid communication with a pump outlet port. Disposed within the housing is a wobble plate which is adapted to pump fluid from the inlet chamber to the outlet chamber. Selectively insertable into and removable from within the housing is a modular pump component. The modular pump component is adapted to modify the operational characteristics of the pump when inserted into the pump housing.
    Type: Grant
    Filed: May 15, 1996
    Date of Patent: March 25, 1997
    Inventor: Benjamin R. Du
  • Patent number: 5540556
    Abstract: A positive displacement pump comprising a housing which defines a pump inlet chamber in fluid communication with a pump inlet port and a pump outlet chamber in fluid communication with a pump outlet port. Disposed within the housing is a wobble plate which is adapted to pump fluid from the inlet chamber to the outlet chamber. Selectively insertable into and removable from within the housing is a modular pump component. The modular pump component is adapted to modify the operational characteristics of the pump when inserted into the pump housing.
    Type: Grant
    Filed: June 1, 1994
    Date of Patent: July 30, 1996
    Inventor: Benjamin R. Du
  • Patent number: 5482439
    Abstract: A power breaker for a compressor for automobiles including a base provided with a first conducting member and a second conducting member, a circular plate disposed within the base and having a center hole, a resilient disc arranged on the circular plate and including annular portion on which is fitted a diaphragm, a pin inserted through the center hole of the circular plate and having one end bearing against the diaphragm of the resilient disc and another end against the first conducting member, a control disc arranged on the resilient disc, a sealing ring disposed on the control disc, a plug formed with a cavity at one end and a curved recess at another end, a spring mounted in the cavity of the plug, a cover engaged with a top of the base and having a threaded hole, and an adjusting screw threaded engaged with the threaded hole of the cover.
    Type: Grant
    Filed: January 9, 1995
    Date of Patent: January 9, 1996
    Inventor: Chi-Wen Chen
  • Patent number: 5464327
    Abstract: A water pressure control system in which the pressurizing pump is turned on only in response to low pressure but is turned off only in response to low water flow rates. Water flow is detected with a magnetic switch displaced by water movement. After the pump is turned on, it can not be turned off for ten seconds, to smooth operation. When the system is first activated, the pump is turned on for sixty seconds, without regard to the other control functions, to guarantee priming of the pump.
    Type: Grant
    Filed: December 1, 1993
    Date of Patent: November 7, 1995
    Assignee: ITT Corporation
    Inventor: Robert P. Horwitz
  • Patent number: 5464328
    Abstract: A regulating and controlling device for a fluid pressure booster installation includes a motor-driven pressure generating unit, a check valve, a relief valve and a pressure switch. The pressure switch has a first cylinder-piston arrangement for connecting the drive motor to a source of electrical energy. The first cylinder-piston arrangement includes a piston rod for contacting an intermediate member. The device has, as an improvement, a second cylinder-piston arrangement, a third cylinder-piston arrangement and a gear unit. The improvement prevents longer-lasting circulation delivery and, accordingly, an overheating of the working fluid. This also avoids any need for the pressure switch to be constructed so as to be adjustable in operation with respect to switch-off pressure or any need to be adjusted when changing the pressure value of the relief valve used for adjusting the pressure at the pressure outlet of the device.
    Type: Grant
    Filed: February 25, 1994
    Date of Patent: November 7, 1995
    Inventor: Helmut Stoeger
  • Patent number: 5415528
    Abstract: A solution pumping system is disclosed which is embodied as a disposable pump cassette including a self-contained positive displacement pump, and an associated pump driver including a reciprocable pump piston for driving the pump of the cassette. This system is particularly suited for use in compounding in preparation of parenteral solutions for administration to patients. In order to promote high liquid output with minimum peak pumping pressures, the controls of the system operate to provide a "square" pumping pressure waveform, thus optimizing performance of the system. This is achieved by selectively varying the velocity of the pump piston during its operation.
    Type: Grant
    Filed: September 8, 1994
    Date of Patent: May 16, 1995
    Assignee: Abbott Laboratories
    Inventors: John E. Ogden, Edward Tripp, William L. Rudzena
  • Patent number: 5358385
    Abstract: A new structure for an efficient electric pump is described. The electric pump of this invention mainly comprises a cover plate, a top cover and a housing to make up the outside appearance. Its inside consists of a dual piston device, an eccentric transmission device for the pistons to stroke up and down, an electric motor, a switch, an adjustable pressure switch, a rotary dial for adjusting said pressure switch and the associated circuitry. The cover plate has two circular ball-shaped chambers for the pistons to create the sucking and the discharging. In between the two ball-shaped chamber are discharge and suction channels which are independent from each other but are joined together. Two ends of the channel are provided with clack valves for controlling the air flow to be drawing in on one side and discharge on the other side. The pressure switch is disposed beneath the discharge channel so that the pressure switch trips when the discharge pressure extends a preset limit.
    Type: Grant
    Filed: September 16, 1993
    Date of Patent: October 25, 1994
    Inventor: Nancy Wang
  • Patent number: 5352096
    Abstract: This invention relates to an air compressor and in particular to one which includes a valve controlling device having a check valve and a cover. The check valve is fixedly mounted on said cover and is connected with a pipe. The check valve including a spring, a ball and a packing with the spring urging said ball against said packing thereby sealing said pipe. The cover is fixedly mounted on a cylinder so that air in said cylinder can flow out of said cover. A passage is formed between said cylinder and said cover and communicated with said check valve, a power breaker, an exhaust valve, and a pressure gauge. The power breaker is fixedly connected with said cover has via a connector and having an adjusting knob, a diaphragm, a main body, and two conducting members. The main body has an interior chamber in which is fitted a piston, the piston receiving a spring and having a protuberance on which is fitted a circular conductor.
    Type: Grant
    Filed: September 27, 1993
    Date of Patent: October 4, 1994
    Inventor: Chen Chi-Wen
  • Patent number: 5193985
    Abstract: A new and improved control system for monitoring and controlling the operation of a downhole linear d.c. motor-pump assembly and a method of using it for producing a sufficient reciprocating pumping action to lift well fluid through the producing tubing of a well to the ground surface. The system includes a surface monitoring station that is in radio communication with a plurality of remote downhole motor-pump assemblies. Each motor-pump assembly has a surface motor controller, a downhole motor-pump cartiridge unit that is adapted to be received in a downhole cartridge sleeve assembly that maintains the cartridge unit in a stationary position for pumping purposes. The motor-pump cartridge unit may be raised or lowered by a control cable within the production tubing for helping to facilitate the repair or replacement of the motor-pump cartridge unit.
    Type: Grant
    Filed: November 9, 1990
    Date of Patent: March 16, 1993
    Assignee: UniFlo OilCorp, Ltd.
    Inventors: Nelson Escue, Vance E. Bolding, Howard C. Hornsby
  • Patent number: 5131466
    Abstract: The present invention is drawn to an inlet valve assembly for a subsurface sucker rod operated reciprocating piston pump and, more particularly an inlet valve assembly which is locked in its closed position when the pump is in its unanchored, non-pumping position within the production tube of a deep well. When the subsurface piston pump is anchored within the production tube of the deep well of the inlet valve assembly is freely movable between open and close positions upon reciprocation of the piston.
    Type: Grant
    Filed: August 15, 1991
    Date of Patent: July 21, 1992
    Assignee: Intevep, S.A.
    Inventors: Jesus E. Chacin U., Amnon M. Vadasz F.
  • Patent number: 5062480
    Abstract: The present invention is drawn to an inlet valve assembly for a subsurface sucker rod operated reciprocating piston pump and, more particularly an inlet valve assembly which is locked in its closed position when the pump is in its unanchored, non-pumping position within the production tube of a deep well. When the subsurface piston pump is anchored within the production tube of the deep well of the inlet valve assembly is freely movable between open and close positions upon reciprocation of the piston.
    Type: Grant
    Filed: October 11, 1990
    Date of Patent: November 5, 1991
    Assignee: Intevep, S.A.
    Inventors: Jesus E. Chacin U., Amnon M. Vadasz F.
  • Patent number: 5049046
    Abstract: A new and improved control system for monitoring and controlling the operation of a downhole linear d.c. motor-pump assembly and a method of using it for producing a sufficient reciprocating pumping action to lift well fluid through the producing tubing of a well to the ground surface. The system includes a surface monitoring station that is in radio communication with a plurality of remote downhole motor-pump assemblies. Each motor-pump assembly has a surface motor controller, a downhole motor-pump cartridge unit that is adapted to be received in a downhole cartridge sleeve assembly that maintains the cartridge unit in a stationary position for pumping purposes. The motor-pump cartridge unit may be raised or lowered by a control cable within the production tubing for helping to facilitate the repair or replacement of the motor-pump cartridge unit.
    Type: Grant
    Filed: January 10, 1990
    Date of Patent: September 17, 1991
    Assignee: Escue Research and Development Company
    Inventors: Nelson B. Escue, Vance E. Bolding, Howard C. Hornsby
  • Patent number: 5048604
    Abstract: The invention is drawn to an improved inlet valve assembly for use in subsurface sucker rod operated reciprocating piston pumps. The inlet valve or standing valve is locked in the closed position when the pump is unanchored from the production tubing to prohibit passage of fluid into the pump barrel.
    Type: Grant
    Filed: November 7, 1990
    Date of Patent: September 17, 1991
    Assignee: Intevep, S.A.
    Inventors: Amnon M. Vadasz F., Jesus E. Chacin U.
  • Patent number: 5015162
    Abstract: A pumping system for a heavy oil and sand slurry from a downhole location to the ground surface includes a conventional screw type pump having a rotor and stator. At the bottom of the stator at the inlet thereto is mounted an attachment including a sleeve having a number of slots in the side surface into which the material feeds. Inside the sleeve is mounted a shaft having an auger flight along part of its length. A coupling at the upper end of the shaft connects to the lower end of the rotor and can be engaged and released by rotation of the rotor. The auger flight assists in forming the materials including any excess sand into a suitable slurry for feeding to the inlet of the pump. The auger feeds the material more effectively to the inlet thus maximizing efficiency of the pump. The device thus avoids sand blockages which are common problems in pumping systems of this type.
    Type: Grant
    Filed: November 28, 1989
    Date of Patent: May 14, 1991
    Inventor: Terry D. Heppner
  • Patent number: 4776401
    Abstract: Methods of and apparatus for plugging a well below a rod pump to permit bleeding off the pressure thereabove so that the pump can be removed from the well for replacement or repairs and reinstalled for further pumping operations, the pump being connected to a valve mechanism in the well in a manner which permits the valve to be closed as a result of lifting the pump, this connection being releasable to permit the pump to be pulled free of the valve and withdrawn from the well after the well pressure has been bled from above the closed valve. When the pump is installed again, the pump automatically reconnects to the valve. This invention is particularly useful in wells which are stimulated by the injection of steam.
    Type: Grant
    Filed: August 17, 1987
    Date of Patent: October 11, 1988
    Assignee: Otis Engineering Corporation
    Inventor: William W. Dollison
  • Patent number: 4750865
    Abstract: A method and apparatus for pumping high viscosity fluids such as viscous crude oils using a reciprocating pump powered by a reciprocating rod string where friction between the viscous fluid and the rod string and the resulting floatation effect are reduced greatly or substantially eliminated.
    Type: Grant
    Filed: September 22, 1986
    Date of Patent: June 14, 1988
    Assignee: Intevep, S.A.
    Inventors: Olegario Rivas, Alejandro Newski
  • Patent number: 4440231
    Abstract: Apparatus and methods are provided for installing and removing a downhole rod pump form a well while preventing flow of fluids from the well through a production tubing string.
    Type: Grant
    Filed: June 4, 1981
    Date of Patent: April 3, 1984
    Assignee: Conoco Inc.
    Inventor: Albert E. Martin
  • Patent number: 4280793
    Abstract: A bore hole pump assembly and a method of forming the bore hole assembly, wherein a pump casing member has connected thereto a plurality of interconnectable bore hole lining pipes, with the lowermost of said pipes being connectable directly to one axial end of the casing member, a turbine pump having a plurality of axially spaced turbine impellers with a plurality of bowl elements interposed between the impellers each provided with fixed vanes thereon, and a drive shaft at one axial end of the pump and a tubular housing at the other axial end of the pump, the housing being engageable in the pump casing member and being removable by movement towards said one axial end, the lining pipes acting as a discharge pipe of the pump.
    Type: Grant
    Filed: February 23, 1979
    Date of Patent: July 28, 1981
    Assignee: Mono Pumps Limited
    Inventor: Hugh D. Nelson