Fluid Current Operated Patents (Class 15/104.061)
  • Patent number: 10780472
    Abstract: System and method for decommissioning a pipeline. The system comprises mechanical and chemical assemblies. The mechanical assembly includes a main body and a contact assembly. When the mechanical assembly is provided in the pipeline, the contact assembly is configurable to contact with the interior wall of the pipeline. The chemical assembly is arranged serially in line with the mechanical assembly. The chemical assembly includes a front section having a cross-sectional portion and a rear section having a cross-sectional portion. The front and the rear section are arranged in such a way that the cross-sectional portions of the front and the rear section cooperate with the interior wall of the pipeline to form a chamber to house a removal medium. The system and method can effectively and efficiently remove most or all of such residual mercury and/or other toxic substance from the interior wall of the pipeline before abandonment.
    Type: Grant
    Filed: February 1, 2016
    Date of Patent: September 22, 2020
    Assignee: PTT Exploration and Production Public Company Limited
    Inventors: Suchada Punpruk, Chatawut Chanvanichskul, Passaworn Silakorn, Patara Limpanachaipornkul, Chanya Thammawong
  • Patent number: 10774975
    Abstract: A bi-directional pipeline tool has a body or location in a pipe. A seal element is mounted on the body, the seal element having oppositely directed seal portions with a first seal portion directed towards a first side of the body and a second seal portion directed towards a second side of the body. A valve is provided in the body, the valve having a first port for communicating with fluid on the first side, a second port for communicating with fluid on the second side, and a third port for providing access to a chamber between the seal element and the body. In use, a pressure differential is developed across the tool between fluid upstream of the tool and fluid downstream of the tool. The valve permitting activation of the downstream seal portion, whichever of the portions is the downstream seal portion, by the upstream fluid pressure.
    Type: Grant
    Filed: October 29, 2010
    Date of Patent: September 15, 2020
    Assignee: STATS (UK) Limited
    Inventors: Angus George Bowie, Dale Millward
  • Patent number: 10668513
    Abstract: A pig receptacle is provided. The pig receptacle provides a first circular member and a second circular member attached to at least one elongated rod. The first circular member and the second circular member are sized so that they can receive a pig therethrough. A mesh cage is wrapped around the first circular member and the second circular member so that debris can be gathered during the pigging process. The mesh cage defines apertures that are sized so that large pieces of debris are held in an interior cavity formed by the mesh cage, while small pieces of debris can pass through. In this way, debris is transported through the pipeline and is not lost due to abnormalities in the flow rate through the pipeline.
    Type: Grant
    Filed: October 1, 2018
    Date of Patent: June 2, 2020
    Inventor: Kyle Hill
  • Patent number: 10627039
    Abstract: Embodiments of a multi-diameter foam pig include a first set of radially spaced-apart, longitudinally extending, slots located toward a nose end of the pig and a second set of radially spaced-apart, longitudinally extending, slots located toward a tail end. Each set of slots ends at a band section of the pig so that, together, the two sets of slots do not traverse the entire length of the pig. A standard-length unit version of the foam pig includes only the first set of slots. A set of shorter, intermediate slots, offset in a circumferential direction from the first and second set of slots and partially overlapping those slots, may be included on the band section. Because of the slots, and because of open cell foam, the foam pig decreases or increases in diameter as it enters a different diameter run than the run just traveled.
    Type: Grant
    Filed: June 26, 2017
    Date of Patent: April 21, 2020
    Assignee: TDW Delaware, Inc.
    Inventor: John R. Morrow
  • Patent number: 10533695
    Abstract: There is provided an expandable pipeline pig for a varying diameter pipeline having a pig body that carries two or more guides and one or more actuators. Each guide has a resilient body with a folding zone between an outer perimeter and a central area connected to the pig body, a series of support members spaced circumferentially about the resilient body within the folding zone, and a series of collapsing structures positioned between, and integrally formed with, adjacent support members. The actuators selectively release the guides from a reduced to an expanded mode. In the expanded mode the support members extend outward and the collapsing structures are expanded between the support members. In the reduced mode the support members are folded toward the pig body and the collapsing structures are collapsed to reduce a circumference of the resilient body outer perimeter. The support members are biased toward the expanded mode.
    Type: Grant
    Filed: March 8, 2017
    Date of Patent: January 14, 2020
    Inventors: Bronislav Walter, Scott Walter
  • Patent number: 10527588
    Abstract: An ultrasound flaw detection device which detects abnormalities within a tube while moving in the tube by pressure of water flow. The ultrasound flaw detector includes an ultrasound probe (11) which emits an ultrasound wave from an inside of the tube to a tube wall and receives an echo signal, a pulser-receiver (12) which transmits a pulse signal to the ultrasound probe and to which the received echo signal is inputted, a memory unit (14) which stores the received echo signal, a control unit (15) which controls transmitting timing of the pulse signal from the pulser-receiver to the ultrasound probe and controls writing of the received echo signal to the memory unit, and a power supply unit (19); a flexible member (25) which connects the plurality of parts of the ultrasound flaw detector; and a centering member (26) which keeps the ultrasound probe approximately centered within the tube.
    Type: Grant
    Filed: September 29, 2010
    Date of Patent: January 7, 2020
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Masaaki Torichigai, Mikiyasu Urata, Kiyotaka Aoki, Shinichi Tsuji
  • Patent number: 10525511
    Abstract: Certain exemplary embodiments can provide a pipe pig. The pipe pig comprises a first mounting hub coupled to a mandrel and a first sealing element. The pipe pig further comprises two chassis, each of which is coupled to the mounting hub and the sealing element.
    Type: Grant
    Filed: January 20, 2017
    Date of Patent: January 7, 2020
    Inventor: Danton S. Long
  • Patent number: 10513902
    Abstract: A method can include deploying a plugging device into a well, the plugging device including a body, and an outer material enveloping the body and having a greater flexibility than a material of the body, and conveying the plugging device by fluid flow into engagement with the opening, the body preventing the plugging device from extruding through the opening, and the outer material blocking the fluid flow between the body and the opening. In another method, the plugging device can include at least two bodies, and a washer element connected between the bodies, the washer element being generally disk-shaped and comprising a hole, a line extending through the hole and connected to the bodies on respective opposite sides of the washer element, the washer element preventing the plugging device from being conveyed through the opening, and the washer element blocking the fluid flow through the opening.
    Type: Grant
    Filed: October 5, 2017
    Date of Patent: December 24, 2019
    Assignee: Thru Tubing Solutions, Inc.
    Inventors: Gary P. Funkhouser, Brock W. Watson, Andrew M. Ferguson, Jenna N. Robertson, Roger L. Schultz
  • Patent number: 10400544
    Abstract: A system can include a cementing tool positionable within a casing string of a wellbore. A receiver that is positionable at the surface of the wellbore can receive an optical signal. A locator coupled to the cementing tool can generate an electrical signal in response to detecting a change in a surrounding magnetic field. A light source can generate an optical signal. A fiber optic cable can transmit the optical signal generated by the light source. A fiber reel can dispense the fiber optic cable from an end of the fiber optic cable.
    Type: Grant
    Filed: May 15, 2015
    Date of Patent: September 3, 2019
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Christopher Lee Stokley, Timothy R. Tips, Paul F. Rodney, John Laureto Maida, Krishna M. Ravi, Jamaal Brickhouse, Luke Christopher Downey
  • Patent number: 10378303
    Abstract: A downhole tool, including at least one body defining a surface, the at least one body having a plurality of cavities sealed from an outside of the at least one body by the surface. A plurality of the plurality of cavities being in fluidic communication with others of the plurality of cavities through a plurality of openings. A method of forming a downhole tool.
    Type: Grant
    Filed: March 5, 2015
    Date of Patent: August 13, 2019
    Assignee: BAKER HUGHES, A GE COMPANY, LLC
    Inventors: Steven R. Hayter, Daniel A. Gilmour
  • Patent number: 10279380
    Abstract: A method for cleaning a coke deposit from an internal surface of a process equipment, comprising removing at least a portion of the coke deposit from the internal surface using a flexible pig comprising a plurality of bristles, without damaging a metal protective layer of the internal surface of the process equipment. A flexible pig for cleaning a coke deposit from an internal surface of a process equipment without damaging a metal protective layer of the internal surface, comprising a flexible body formed of a polymeric material, and a plurality of bristles partially encapsulated by the polymeric material of the flexible body.
    Type: Grant
    Filed: April 29, 2016
    Date of Patent: May 7, 2019
    Assignee: Chevron Phillips Chemical Company LP
    Inventor: Vincent dePaul McGahee
  • Patent number: 10213816
    Abstract: A pipeline pig that can traverse dual- or multiple-diameter pipes or pipelines has collapsible and expandable sealing elements that support the pig, provide a sliding (dynamic) seal with the pipe wall, and maintain the necessary pressure for driving or cleaning as the elements collapse and expand. The sealing elements each have an internal cavity sized to house a first volume of a fluid and a reservoir sized to house a second volume of the fluid. The cavity and reservoir are arranged so that a portion of the volumes of the fluid can move between each. An accumulator maintains a pressure of the first and second volumes of the fluid so that regardless of the sealing element's current size, or whether the element is transitioning between sizes, the element can maintain a sliding seal engagement with the pipe wall and perform the primary function of driving or cleaning (or both).
    Type: Grant
    Filed: April 21, 2015
    Date of Patent: February 26, 2019
    Assignee: TDW Delaware, Inc.
    Inventor: Jeffrey C. Hailey
  • Patent number: 10132139
    Abstract: A wiper plug that includes an elongated body member having a forward end, a rearward end, and an open central bore; spaced radially outwardly projecting wiping flanges made of flexible material and configured to extend beyond the inner diameter of the pipe to be cleaned but that deform to apply contact wiping pressure to the inner diameter of the pipe as the wiper plug travels through the pipe; and shearing elements that extend from the rearward end of the elongated body member by a distance that is greater than the inner diameter of the pipe to be cleaned. The shearing elements hold the wiper plug in position in between two connected pipe sections while the open central bore allows cement to flow therethrough. Also, a carrier pipe for the wiper plug and method of use thereof for cleaning cement from the wellbore annulus of long casing strings.
    Type: Grant
    Filed: August 8, 2018
    Date of Patent: November 20, 2018
    Assignee: Gryphon Oilfield Solutions, LLC
    Inventors: Tyler Roberts, Ian Beckett, Geoff Williams, Mark Haire, Gerardo Franco
  • Patent number: 10120094
    Abstract: A sensory assembly and system can be used in a wellbore to detect and characterize the earth strata and formations around the wellbore, where a signal emitting sensory tool is part of a tool string deployed in the wellbore, and where weighted fiber optic cable is deployed in an extended position below the signal emitting sensory tool. The fiber optic cable is also part of wire-line, slickline, or coiled tubing injector head connected to the signal emitting sensory tool, thereby providing fiber optic cable both above and below the signal emitting sensory tool in position to collect backscatter signals from earth strata and formations around the wellbore. The collection of backscatter signals, particularly from below the signal emitting sensory tool, allows for more precise characterization of formations and fractures within the earth strata.
    Type: Grant
    Filed: August 25, 2014
    Date of Patent: November 6, 2018
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Mikko Jaaskelainen, Jason Edward Therrien
  • Patent number: 10119397
    Abstract: A pushing sitting device includes a main base, at least one set of pushing arms are provided on the side surface of the main base. The pushing arm includes a bi-parallelogram, having a first parallelogram structure and a second parallelogram structure. The first parallelogram structure includes a front arm, a detector assembly, an assisting arm and the main base, wherein the front arm is connected to the detector assembly and the main base respectively through joint pins at two ends, while the assisting arm is connected to the detector assembly and the main base respectively through the rotating shafts at two ends. The second parallelogram includes a rear arm, the detector assembly, a nonporous assisting arm and the main base which are connected in sequence by connecting shaft.
    Type: Grant
    Filed: November 5, 2015
    Date of Patent: November 6, 2018
    Inventor: Wang Shaobin
  • Patent number: 10113373
    Abstract: A composite material centralizer (60) for a tubular (50) is formed from a shell (10) of elongate shape with a curved upper surface (12) and a longitudinal slot (14) formed centrally in the curved upper surface (12) of the shell (10). At least one port (19) for injection of a bonding agent into the cavity (26) is provided in the curved upper (surface (12) of the shell (10). Fluid vent holes (17) are provided in the curved upper surface (12) of the shell (10) adjacent to either end of the longitudinal slot (14) in the curved upper surface (12) of shell (10). An elongate resilient member (30) with an outwardly projecting bow spring surface (33) may be retained within the longitudinal slot (14) in the shell (10) by insertion of ends (31, 32) in respective recesses (24, 24?).
    Type: Grant
    Filed: August 13, 2014
    Date of Patent: October 30, 2018
    Assignee: INNOVEX DOWNHOLE SOLUTIONS, INC.
    Inventors: Richard Ronald Baynham, David E. Y. Levie
  • Patent number: 10077863
    Abstract: Embodiments provide a method of controlling a flow of pipeline fluid through a pipeline pig that includes a bypass channel and at least one relief channel extending therethrough.
    Type: Grant
    Filed: June 21, 2017
    Date of Patent: September 18, 2018
    Assignee: SAUDI ARABIAN OIL COMPANY
    Inventor: Mohamed Ahmed A. Soliman
  • Patent number: 10060568
    Abstract: The apparatus comprises a pipe PIG and a gauge. The PIG is for use with a pipeline and is of the type including: a body defining a longitudinal axis; and a pair of seals connected to the body and axially spaced apart from one another by the body. The gauge: has a longitudinal axis; has an outer periphery through which the longitudinal axis of the gauge passes centrally; has a central position relative to the body wherein the longitudinal axis of the body and the longitudinal axis of the gauge are at least substantially coincident; and is mounted to the body for generally radial movement relative to the central position.
    Type: Grant
    Filed: May 10, 2016
    Date of Patent: August 28, 2018
    Inventor: Paul Pirner
  • Patent number: 10053965
    Abstract: A lipless tubular oil seal assembly uses a tubular type of seal. The new seals create only enough pressure against the casing to provide an adequate seal under most conditions and the small amount of oil that would leak by on the roughest well casing surfaces acts as a lubricant. The new seal has no lip so it cannot turn under and get stuck in the well casing like a cup seal, even under the roughest conditions.
    Type: Grant
    Filed: April 7, 2015
    Date of Patent: August 21, 2018
    Inventor: Ronald A. Holland
  • Patent number: 10030920
    Abstract: The invention relates to a method for cleaning a heat exchanger. The heat exchanger comprises a plurality of tubes extending between a first header and a second header, and further comprises an insertion unit for introducing a plurality of projectiles thereinto. A first step of the method comprises pumping a fluid into the first header. A second step comprises inserting the plurality of projectiles into the fluid, such that the plurality of projectiles are distributed within the fluid. A third step comprises flowing the fluid and the projectiles through the tubes, such that the projectiles abrades at least one tube. A fourth step comprises discharging the fluid and the projectiles out of the second header. Among the plurality of projectiles, at least one projectile has a different specific gravity, relative to the fluid, from at least one of the remaining projectiles.
    Type: Grant
    Filed: October 13, 2014
    Date of Patent: July 24, 2018
    Assignee: HVS ENGINEERING PTE LTD
    Inventor: Alex Kok Heng Chow
  • Patent number: 10024612
    Abstract: An online cleaning system for tube and shell heat exchangers is presented. The system includes a positioner, a plunger, an umbilical cleaner, and a motor. The cleaning system cleans the tubes while the heat exchanger remains in operation. The cleaning system locates and isolates a single tube via rotating and translating mechanical actions and inserts the umbilical cleaner into the tube, which may clean the tube via rotational movement or via sonication. The cleaning system may further clean the outer surface of the tubes of the heat exchanger.
    Type: Grant
    Filed: October 24, 2014
    Date of Patent: July 17, 2018
    Assignee: King Fahd University of Petroleum and Minerals
    Inventors: Jihad Hassan AlSadah, Esmail M. A. Mokheimer
  • Patent number: 10022756
    Abstract: In one aspect, the present invention relates to a method for displacing fluid from a pipe. The method includes engaging a fluid-displacement system with the pipe. A displacement agent is pumped into the pipe via the fluid-displacement system. Fluid present within the pipe is displaced by the displacement agent. The pipe is manipulated in a desired manner.
    Type: Grant
    Filed: September 23, 2016
    Date of Patent: July 17, 2018
    Assignee: AMEC FOSTER WHEELER USA CORPORATION
    Inventors: John A. Austin, Raymond Christopher Young
  • Patent number: 9862011
    Abstract: A dart assembly for cleaning tubes including at least one annular disk having a first end, a second end, an outer perimeter and at least one longitudinal groove in the outer perimeter extending from the first end to the second end and at least one cutting wheel. The cutting wheel is positioned within the groove such that a portion of the cutting wheel extends into the groove and a portion extends beyond the outer perimeter of the annular disk. The dart assembly may also include at least one scraper disk and the annular disk and the scraper disk may be positioned at opposite ends of a shaft. Also, a method of cleaning a tube where a dart assembly is inserted into the inner diameter of the tube and forced through the tube using pressurized fluid. The dart assembly may have any or all of the features described above.
    Type: Grant
    Filed: February 4, 2015
    Date of Patent: January 9, 2018
    Assignee: National Heat Exchange Cleaning Corporation
    Inventors: Brian D. Antal, Carroll E. Joseph
  • Patent number: 9835270
    Abstract: A pipeline termination arrangement to be mounted to a pipeline end section to support a pipeline hub of the pipeline end section during and after a subsea connection of the pipeline hub to a spool piece hub fixed to a spool piece termination structure is provided. The pipeline termination arrangement includes a landing structure for supporting the spool piece termination structure; a connection porch fixed to the landing structure; and a support structure which is fixed to the pipeline end section and provided with a guide frame. The guide frame slidably supports the landing structure so as to allow the landing structure and the connection porch to slide along the guide frame from a first position, in which the connection porch is located in front of and at a distance from the pipeline hub, to a second position, in which the connection porch is in contact with the pipeline hub.
    Type: Grant
    Filed: June 22, 2015
    Date of Patent: December 5, 2017
    Assignee: Vetco Gray Scandinavia AS
    Inventors: Rolf Bastesen, Staale Svindland
  • Patent number: 9810365
    Abstract: A pipeline pig includes a plurality of relief channels and a bypass channel extending therethrough. To regulate a speed of the pipeline pig, relief valves within the relief channels open when a differential pressure between upstream and downstream ends of the pipeline pig reaches a pre-selected minimum relief pressure. If the differential pressure reaches a pre-selected maximum relief pressure, such as when the pipeline pig encounters an obstruction, the relief valves close to allow the differential pressure to further increase to clear the obstruction. If the further increase in differential pressure is insufficient to clear the obstruction and the differential pressure reaches a pre-selected minimum bypass pressure, a bypass valve opens to permit fluid flow through the bypass channel while the relief valves are closed. Flow through the bypass channel operates to reduce turbulence and permit production through the pipeline if the pipeline pig becomes stuck and obstructs the pipeline.
    Type: Grant
    Filed: February 24, 2014
    Date of Patent: November 7, 2017
    Assignee: SAUDI ARABIAN OIL COMPANY
    Inventor: Mohamed Ahmed A. Soliman
  • Patent number: 9714300
    Abstract: The invention relates to continuous polymerization apparatus comprising a tubular reactor with a continuous loop section (32), a secondary line section (33) and a pigging system (39) that allows for cleaning of both sections of the reactor in a single continuous pass without manual removal of the pig.
    Type: Grant
    Filed: November 22, 2013
    Date of Patent: July 25, 2017
    Assignee: CELANESE INTERNATIONAL CORPORATION
    Inventor: David Adams
  • Patent number: 9662690
    Abstract: Disclosed is a pig assembly for maintaining a multi-diameter functional line with a large range of diameter variation for conveying fluid. The pig assembly includes a central shaft having a first shaft end and a second shaft end and at least one cylindrical pig body coaxially mounted on the central shaft. Attached to the at least one pig body are a plurality of arms capable of moving between an extended position radiating from the at least one pig body and a retracted position within the at least one pig body. Each of the pluralities of arms includes a spring to enable each arm of the plurality of arms to move into the extended position and to store potential energy when the arm is in the retracted position, and a roller to enable rolling contact between the pig assembly and an interior of a functional line during movement of the pig assembly within the functional line.
    Type: Grant
    Filed: July 15, 2014
    Date of Patent: May 30, 2017
    Assignee: CHEVRON U.S.A. INC.
    Inventors: Parsinejad Farzan, Antonio C. F. Critsinelis, Sid A. Mebarkia
  • Patent number: 9534479
    Abstract: In one aspect, the present invention relates to a method for displacing fluid from a pipe. The method includes engaging a fluid-displacement system with the pipe. A displacement agent is pumped into the pipe via the fluid-displacement system. Fluid present within the pipe is displaced by the displacement agent. The pipe is manipulated in a desired manner.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: January 3, 2017
    Assignee: AMEC Foster Wheeler USA Corporation
    Inventors: John A. Austin, Raymond Christopher Young
  • Patent number: 9498804
    Abstract: A scraper pig for cleaning tubes and pipelines comprising a flexible core provided with a casing in which scraper studs are embedded in a manner whereby they protrude sufficiently to perform a cleaning action when they are propelled through the tube. A method for the manufacture of the pig and the design of the stud is also provided.
    Type: Grant
    Filed: December 30, 2008
    Date of Patent: November 22, 2016
    Assignee: COKEBUSTERS LTD.
    Inventor: John Phipps
  • Patent number: 9470815
    Abstract: Methods and apparatus for reducing the impact of guided (or “tube”) waves in permanently installed seismic systems are provided. By utilizing passive acoustic absorbers, the impact of tube waves may be reduced, leading to improved performance of permanently installed seismic systems that are installed onto production tubing when the well is completed.
    Type: Grant
    Filed: March 4, 2014
    Date of Patent: October 18, 2016
    Assignee: Weatherford Technology Holdings, LLC
    Inventors: Sverre Knudsen, Paul Travis
  • Patent number: 9222612
    Abstract: A system for cleaning pipes and pipe joints where the interior surface of the pipe becomes coated with material being processed comprising a cylindrical cleaning body having opposing first and second ends, said cylindrical body having an annular shape with interior and exterior walls so that the outer wall contacts the interior surface of a pipe and wherein ends of the cleaning body have means for removing material deposited on the interior surface, a means for moving the apparatus along the length of said pipe, a first and second means for cleaning said cleaning body having passages that allow fluid to pass through, wherein said first and second cleaning means mates with said first and second ends of said cleaning body, where said cleaning body is moved into contact with said cleaning means to dislodge accumulated deposits from the cleaning body and simultaneously dislodging accumulated deposits from said cleaning means.
    Type: Grant
    Filed: January 7, 2013
    Date of Patent: December 29, 2015
    Assignee: VADXX ENERGY LLC
    Inventor: William L. Ullom
  • Patent number: 9182183
    Abstract: Fluid is circulated through a heat exchange system for heat exchange to occur at a bundle of tubes making up a portion of the heat exchange system. Heat exchange efficiency at the bundle of tubes requires debris and fouling deposits accumulated therewithin to be substantially removed. Taking the heat exchange system off-line for physical flushing is not only ineffective but also disallow use of the heat exchange system for the duration it remains off-line. Described herein is an embodiment of a cleaning system which uses a displacement system for displacing cleaning balls carried in fluid into the bundle of tubes for cleaning thereof. A flow diverting system is configured and operable for introducing the cleaning balls to the bundle of tubes when in a first operating mode and for retrieving the cleaning balls from the plurality of tubes when in a second operating mode.
    Type: Grant
    Filed: October 1, 2010
    Date of Patent: November 10, 2015
    Assignee: HVS ENGINEERING PTE LTD
    Inventor: Kok Heng Alex Chow
  • Patent number: 9127803
    Abstract: A pipe inspection system comprises an inspection head at the end of a flexible shaft, wherein the inspection head comprises a rigid distal end portion and a rigid intermediate portion spaced from the distal end portion by a flexible region. The flexible region comprises a series of sections with pivotal connections between adjacent sections which allow pivoting about two orthogonal axes, wherein the range of pivoting between adjacent sections is limited such that the complete series can be pivoted by a maximum angle of between 80 and 100 degrees.
    Type: Grant
    Filed: June 21, 2012
    Date of Patent: September 8, 2015
    Assignee: JD7 LIMITED
    Inventor: Daniel Krywyj
  • Patent number: 9009905
    Abstract: A pipe pig for refinery heater tubes is disclosed. The pipe pig has arcuate cleaning elements which form an expandable circumference. Each of the arcuate cleaning elements has a scraping edge. A spring element biases the arcuate cleaning elements radially outward. The pipe pig may have structural components made from titanium alloys and arcuate cleaning elements made from carbon-carbon composites. A method for cleaning coking out of refinery heater tubes using the pipe pig is also disclosed.
    Type: Grant
    Filed: July 31, 2009
    Date of Patent: April 21, 2015
    Assignee: On Stream Technologies Inc.
    Inventors: Jantje Been, Baotong Lu, David Crick, Guenther Metzker
  • Patent number: 9004003
    Abstract: This is a photoconductor and dispenser assembly and system. The photoconductor is in a tubular form so as to accept a tubular formed dispenser within its hollow portion. The dispenser will coat within this hollow portion a uniform coating of an acoustical dampening material. This material will dull any sound produced by the photoconductive marking system. The assembly is the tube having in its hollow portion this dispenser. The dispenser fits tightly but movably within the hollow portion.
    Type: Grant
    Filed: June 25, 2009
    Date of Patent: April 14, 2015
    Assignee: Xerox Corporation
    Inventors: Steven C. Hart, Fa-Gung Fan
  • Patent number: 8931558
    Abstract: A flow line cleanout device for a coiled tubing head of a coiled tubing string is comprised of a hydraulic vane motor assembly having a rotor configured for attachment to and rotation of a work tool such as a fluid ejecting nozzle to be inserted into a flow line. Seals around the device seal the flow line so that fluid pressure behind the coiled tubing head force fluid through the hydraulic vane motor assembly to rotate the rotor and the attached nozzle in response to pressure changes created by check valves. Jets of fluid from the rotating nozzle serve to wash and remove blockages in the flow line and facilitate the insertion and advancement of the coiled tubing string.
    Type: Grant
    Filed: March 22, 2012
    Date of Patent: January 13, 2015
    Assignee: Full Flow Technologies, LLC
    Inventor: Tom M. Harper
  • Patent number: 8894772
    Abstract: An intelligent pig for pipeline monitoring comprises a single body containing signal transmitters and receivers provided with replaceable rings for centering the body within the pipeline, the rings may be provided with brushes which help center the pig within the pipeline and also aid its passage through pipelines which may contain bends and/or be of variable diameter, the pig may be used in combination with a cleaning pig to provide combined activities using a common driving force.
    Type: Grant
    Filed: April 19, 2013
    Date of Patent: November 25, 2014
    Assignee: Cokebuster Ltd.
    Inventors: John Phipps, Hugh Lewis
  • Patent number: 8887961
    Abstract: Tapping device for beverage, including at least one beverage container, a tapping line and a tapping cock, wherein the tapping line extends at least to adjacent the tapping cock and a connector for connection of the tapping line to the at least one beverage container, wherein a cleaning element is provided in the beverage container or the connector, which cleaning element upon broaching of a beverage container is situated near an end of the tapping line proximal to the beverage container and is movable through the tapping line under pressure of beverage from the beverage container, while abutting against an inner side of the tapping line, such that beverage will propel the cleaning element in the tapping line, at least to near the tapping cock.
    Type: Grant
    Filed: June 29, 2007
    Date of Patent: November 18, 2014
    Assignee: Heineken Supply Chain B.V.
    Inventors: Bart Jan Bax, Helmut Paulitsch, Ernst Jan Folkert Van Der Wal, Antonius Maurits Willemen
  • Patent number: 8858732
    Abstract: The remote controlled chemical pigging apparatus includes a housing and an inflatable device. The inflatable device contains chemicals to dissolve hardened or fossilized materials or contaminants contained within the interior portion of a pipeline, such as an oil or gas pipeline. At a specific location in the pipeline, such as at a pig apparatus receiver portion of the pipeline, the inflatable device is inflated and exploded to disperse the pipeline chemicals contained therein onto the hardened materials or contaminants that have fossilized within the pipeline. The hardened, fossilized materials or contaminants are then dissolved to liquefy the contaminants and, subsequently, to discharge the liquefied contaminants through a drain located in the pipeline. A method of cleaning a pipeline with a remote controlled chemical pigging apparatus having an inflatable device is also provided.
    Type: Grant
    Filed: March 26, 2014
    Date of Patent: October 14, 2014
    Inventor: Ahmad A. M. J. J. Al Qanaei
  • Publication number: 20140251376
    Abstract: A system and method for sanitizing pneumatic conveying piping is provided. The system includes a motorized hose reel with a pig attached to the end of the hose. The pig is smaller in diameter than the inner diameter of the pipe through which it is conveyed. The decreased size of the pig keeps the conveying speed of the pig through the pipes down, while at the same time providing sufficient force to pull the supply hose attached to the pig through the pipes with the pig. The pig of some embodiments of the inventive concept is shaped as a hollow cone or frustoconical shape. Such a shape reduces weight of the pig and also allows the hose to be inserted through the body of the pig with a spray nozzle at the end. The hollow cone shape deflects relatively easily to allow the pig to go around corners or other obstructions. Also, such a pig design automatically centers the nozzle within the pipe during spraying.
    Type: Application
    Filed: March 5, 2013
    Publication date: September 11, 2014
    Inventor: Todd Baker
  • Publication number: 20140209126
    Abstract: Pigs (10) are propelled forwards by a propulsion fluid in a pipeline (21). The pigs (10) have an upstream end (13), a downstream end (11), and an intermediate section (12). The intermediate section has a variable geometry chamber (16) associated therewith and one or more outwardly extending external pawl teeth (15). The pawl teeth are automatically displaceable outwardly relative to a longitudinal axis (9) in response to a pressure differential between a downstream pressure and an upstream pressure. The pig is configured such that a change in a geometry of the chamber in response to the pressure differential between the downstream pressure and the upstream pressure causes the one or more pawl teeth to automatically displace outwardly when the upstream pressure is less than the downstream pressure. When the pawl teeth are deployed, upstream displacement of the pig is inhibited. Various related systems (5) and methods are also disclosed.
    Type: Application
    Filed: August 30, 2012
    Publication date: July 31, 2014
    Inventor: Ian Doig
  • Publication number: 20140190574
    Abstract: Disclosed is a pig assembly for maintaining a functional line for conveying fluid. In one aspect, the pig assembly includes a larger diameter pig having an internal compartment and at least one smaller diameter pig adapted to fit therein. The larger diameter pig is capable of passing through a larger diameter functional line and the smaller diameter pig is capable of passing through a smaller diameter functional line. In another aspect, a method for maintaining a functional line for conveying fluid is provided which includes pigging a subsea line having at least a larger diameter functional line and a smaller diameter functional line in fluid communication with one another using a pig assembly as described herein.
    Type: Application
    Filed: January 10, 2013
    Publication date: July 10, 2014
    Applicant: Chevron U.S.A. Inc.
    Inventors: Farzan Parsinejad, Antonio Carlos Falcao Critsinelis, Sid A. Mebarkia, Christopher Allen Kassner
  • Patent number: 8719989
    Abstract: The chemical pigging apparatus for pipelines includes a forward component and a rearward component. The forward component has front and rear seals, with a chemical chamber between. A flexible elongate dispensing tube is in communication with the front of the chamber, with the tube having a perforated dispensing tip at its forward end. The chamber is open to the rear, with a piston sealing the rear portion of the chamber. The rearward component has a rearward component seal, with a rod extending forward of the seal. The rod has a protrusion that seats within a mating socket at the rear of the piston. The apparatus is propelled through a pipeline by pressure behind the rearward component seal, with the rearward component pushing the forward component through the pipeline and pushing the piston into the chemical chamber to expel chemicals through the forward dispensing tube and its dispensing tip.
    Type: Grant
    Filed: October 24, 2013
    Date of Patent: May 13, 2014
    Inventor: Ahmd Abdallah Al-Jassem Qanaei
  • Publication number: 20140123417
    Abstract: A brush useful in pipeline pigs, for example, in magnetic flux leakage tools or cleaning tools, a method of making the brush and pipeline pig comprising the brush. The brush has a metal bristle holder and a plurality of bristles, the ends of which are held in the bristle holder by glue, swaging or a combination of glue and swaging. The glue may be an anaerobic glue. The brush and method of making avoid the use of heat to secure the bristles to the bristle holder, avoid the use of solder or weld metal, and are less labor intensive than soldering or welding.
    Type: Application
    Filed: August 16, 2013
    Publication date: May 8, 2014
    Applicant: 766089 ALBERTA LTD.
    Inventors: FOONG WENG CHEE, DOLORES HOUGHTON, MICHAEL HOOPER
  • Patent number: 8715423
    Abstract: A pig for movement within a pipeline comprising a cylindrical housing with annular seals circumferentially mounted to the housing and extending outwards for sealing engagement between the pipeline and the housing. An internal flow cavity passes through the housing, with a gate positioned within the internal flow cavity, initially obstructing flow through the cavity. A locking device, connected to the gate, prevents the gate opening. A sensing device is capable of receiving a signal and is connected to an unlocking device. The sensing device receives a signal activating the unlocking device, thereby removing the locking device, permitting the gate to open and flow to pass through the cavity.
    Type: Grant
    Filed: November 3, 2011
    Date of Patent: May 6, 2014
    Assignee: Saudi Arabian Oil Company
    Inventor: Ali Ateyeh Mohammad Mousa
  • Patent number: 8671495
    Abstract: A pig traversable through a conduit to deliver a liquid, such as a coating material, having a resilient flexible, generally frustoconical sealing lip which is resiliently biased against an internal surface of the conduit and a resilient biasing member engaging and biased against an under surface of the sealing lip, biasing the sealing lip against an internal surface of the conduit. The disclosed embodiments of the resilient biasing member include annular coil springs and serpentine annular metal springs which may be U-shaped in cross-section, including a first leg received against the under surface of the sealing lip and a second leg received against the pig body portion.
    Type: Grant
    Filed: November 6, 2006
    Date of Patent: March 18, 2014
    Assignee: Durr Systems, Inc.
    Inventors: Herbert Martin, Werner Schwager, Martin Stiegler, Andreas Collmer, Manfred Michelfelder
  • Patent number: 8650694
    Abstract: A pipeline pig includes a venturi and a modulating valve located rearward of the inlet side of the venturi. When the valve is in the open position, a predetermined maximum bypass flow is allowed through the venturi. The closed position allows a predetermined minimum bypass flow. The valve may be a poppet-style valve or a frusto-conical shaped stopper. The stopper has sufficient mass and/or aerodynamic drag to overcome the spring force holding the valve in the open position. When the pig stalls, the valve closes and the stopper chokes bypass flow through the venturi. When the pig starts running again, the valve opens as inertia forces the stopper away from the inlet side of the venturi. Also, as friction of the pig increases due to changes in the internal diameter of the pipeline or accumulation of debris ahead of the pig, increased airflow across the valve creates drag sufficient to partially overcome the spring force, thus keeping the pig moving at a desirable rate of travel.
    Type: Grant
    Filed: July 3, 2008
    Date of Patent: February 18, 2014
    Assignee: TDW Delaware, Inc
    Inventors: Rick D. Pruett, Robert F. Strong, Eric N. Freeman, Charles Culver Gidden Cooper, Scott Douglas Nelson, Mark Russell Henault
  • Patent number: 8650695
    Abstract: The present invention is a pipeline pig for cleaning the interior of a pipeline, the pipeline pig having a longitudinal pig body with forward and rearward elastomeric propulsion members affixed to and supporting the pig body substantially concentrically in a pipeline, the propulsion members functioning to move the pig body through a pipeline by the force of fluid flow and a plurality of spaced apart elastomeric diagonally oriented scrapers radially extending from the pig body, each scraper member having a semi-circular outer peripheral edge configured and dimensioned to engage the interior wall of a pipeline to thereby scrape and clean the interior pipeline wall as the pig is moved through the pipeline and provide additional support for the pig substantially concentrically in a pipeline. Orientation of the scraper enhances scraping effectiveness by slicing through any debris buildup, separating the debris from the inner pipe wall so that it can be pushed out of the pipeline by the pig discs or cups.
    Type: Grant
    Filed: January 16, 2009
    Date of Patent: February 18, 2014
    Assignee: TDW Delaware Inc.
    Inventors: Rick D. Pruett, William J. Rankin
  • Patent number: 8646514
    Abstract: A front end water box with an on-line rubber ball cleaning function in a tubular condenser of a water cooled chiller is provided. A front end water box and an automatic on-line rubber ball cleaning device are integrated. Besides the structure of a normal front end water box, a ball receiving device, a rubber ball collection cavity, a ball sending device, a division drainage device, a ball sending division separator, a ball observer, an automatic rubber ball receiving-and-sending control valve, an automatic terminal temperature difference (TTD) monitoring and recording device, and an automatic rubber ball cleaning controller are further included. Therefore, division cleaning, on-line observation, and rubber ball replacement are automatically realized, the operation TTD of the chiller is automatically displayed and recorded, and a function of manually adjusting the cleaning frequency, period, and start and stop is achieved, so as to ensure that the TTD increase of the chiller does not exceed 0.3° C.
    Type: Grant
    Filed: September 1, 2009
    Date of Patent: February 11, 2014
    Inventor: Yonggang Ni
  • Publication number: 20130276828
    Abstract: An intelligent pig for pipeline monitoring comprises a singles body containing signal transmitters and receivers provided with replaceable rings for centering the body within the pipeline, the rings may be provided with brushes which help centre the pig within the pipeline and also aid its passage through pipelines which may contain bends and/or be of variable diameter, the pig may be used in combination with a cleaning pig to provide combined activities using a common driving force.
    Type: Application
    Filed: April 19, 2013
    Publication date: October 24, 2013
    Applicant: Cokebusters LTD.
    Inventors: John Phipps, Hugh Lewis