Pistons, Fluid Driven Into Well (e.g., Cementing Plugs) Patents (Class 166/153)
  • Patent number: 9759039
    Abstract: A detonating restriction plug element and method in a wellbore casing. The element includes a hollow passage in the restriction plug element that receives a detonating assembly coupled to a mechanical restraining element, and a space for containing a reactive fluid. The mechanical restraining element undergoes a change in shape for a pre-determined time delay due to a chemical reaction when the reactive fluid in the space such as wellbore fluids comes in contact with the restraining element. A firing pin in the detonating assembly is released when the restraining elements changes shape and releases the restraint on the firing pin. The firing pin contacts a detonator in the detonating assembly and causes a detonating event such that the restriction plug element fragments.
    Type: Grant
    Filed: April 5, 2016
    Date of Patent: September 12, 2017
    Assignee: GEODYNAMICS, INC.
    Inventor: John T Hardesty
  • Patent number: 9714559
    Abstract: A downhole tool for treating a zone adjacent a wellbore, comprising a body having at least two separable portions, the portions operable to open and close a fluid path through the tool, and at least one manipulator, like a spring-loaded finger, to establish a fluid path between an interior and exterior of the wellbore, thereby permitting a zone adjacent the wellbore to be treated. In another embodiment a method is disclosed for treating a zone of interest adjacent a wellbore.
    Type: Grant
    Filed: November 11, 2013
    Date of Patent: July 25, 2017
    Assignee: Weatherford Technology Holdings, LLC
    Inventors: Lev Ring, Cesar G. Garcia
  • Patent number: 9689226
    Abstract: An improved method and apparatus for dropping a ball, plug or dart during oil and gas well operations (e.g., cementing operations) employs a specially configured tool body assembly having valving members (e.g., safety or kelly values) and valving members holding plugs, balls, or darts to be dropped. In one embodiment, the ball(s), dart(s) or plug(s) are contained in a sliding sleeve that shifts position responsive to valve rotation. An optional indicator indicates to a user or operator that a ball or plug has passed a selected one of the valving members. A transmitter (or transceiver) provides an ability to generate a wireless signal that is received by receivers (or transceivers) on the tool body assembly. Each receiver (or transceiver) controls an electrical actuator that engages a valving member or the indicator. Wireless signals can be used to open or close a valve or to reset a “tripped” indicator.
    Type: Grant
    Filed: May 17, 2016
    Date of Patent: June 27, 2017
    Assignee: GULFSTREAM SERVICES, INC.
    Inventors: Phil Barbee, Michael Mire, Joey Naquin
  • Patent number: 9637977
    Abstract: The present invention relates methods and apparatus for lining a wellbore. In one aspect, a drilling assembly having an earth removal member and a wellbore lining conduit is manipulated to advance into the earth. The drilling assembly includes a first fluid flow path and a second fluid flow path. Fluid is flowed through the first fluid flow path, and at least a portion of which may return through the second fluid flow path. In one embodiment, the drilling assembly is provided with a third fluid flow path. After drilling has been completed, wellbore lining conduit may be cemented in the wellbore.
    Type: Grant
    Filed: May 28, 2014
    Date of Patent: May 2, 2017
    Assignee: Weatherford Technology Holdings, LLC
    Inventors: Richard L. Giroux, Gregory G. Galloway, Patrick G. Maguire, Tuong Thanh Le, Albert C. Odell, II, David M. Haugen, Frederick T. Tilton, Brent J. Lirette, David J. Brunnert
  • Patent number: 9598930
    Abstract: A flow control system for use with a subterranean well can include a flow chamber through which a fluid composition flows, and a closure device which is biased toward a closed position in which the closure device prevents flow through the flow chamber. The closure device can be displaced to the closed position in response to an increase in a ratio of undesired fluid to desired fluid in the fluid composition. A structure can prevent the closure device from being displaced to the closed position. The fluid composition can flow through the structure to an outlet of the flow chamber.
    Type: Grant
    Filed: February 4, 2014
    Date of Patent: March 21, 2017
    Assignee: Halliburton Energy Services, Inc.
    Inventor: Stephen M. Greci
  • Patent number: 9556701
    Abstract: Improved cementing plugs and methods of using these cementing plugs in subterranean wells are disclosed. A cementing plug comprises a hollow mandrel and one or more wiper elements coupled to the mandrel. A nose is coupled to the hollow mandrel and is movable between a retracted position and an extended position. A portion of the nose is positioned within the mandrel when in the retracted position. This portion of the nose is positioned outside the mandrel when in the extended position.
    Type: Grant
    Filed: February 16, 2016
    Date of Patent: January 31, 2017
    Assignee: Halliburton Energy Services, Inc.
    Inventor: Todd Anthony Stair
  • Patent number: 9194210
    Abstract: Certain aspects are directed to downhole power delivery tools using hydrostatic pressure within the wellbore. In one aspect, a downhole power delivery tool is provided that can be disposed in a wellbore through a fluid-producing formation. The downhole power delivery tool includes a body defining an inlet proximate to a chamber in the body, an actuation mechanism in the body and adjacent to the inlet, and a piston proximate to the chamber. The actuation mechanism can allow communication of hydrostatic pressure via the inlet to the chamber from an annulus external to the body in response to an actuation force being applied to the actuation mechanism. The hydrostatic pressure communicated to the chamber applies a first force to the piston. The piston applies a second force to a rod movable relative to the body in response to the first force being applied to the piston.
    Type: Grant
    Filed: August 2, 2013
    Date of Patent: November 24, 2015
    Assignee: Halliburton Energy Services, Inc.
    Inventor: Jimmie Robert Williamson, Jr.
  • Publication number: 20150107823
    Abstract: A downhole tool for opening a travelling valve assembly of a downhole pump is disposed with the travelling valve assembly within a pump barrel, and includes a substantially cylindrical housing and a piston. The housing defines an axial bore extending from a bottom opening for fluid communication with the pump barrel, a radial port for fluid communication between the axial bore and the pump barrel, and a channel formed in the outer surface of the housing for fluid communication between the radial port and the travelling valve assembly. The piston occludes the axial bore above the radial port, and in response to an upward pressure exerted by a production fluid below the piston, slides upwardly within the axial bore to engage and open a valve member of the travelling valve assembly.
    Type: Application
    Filed: October 16, 2014
    Publication date: April 23, 2015
    Applicant: GLOBAL OIL AND GAS SUPPLIES INC.
    Inventor: David GRONNING
  • Patent number: 8997850
    Abstract: An improved method and apparatus for dropping a ball, plug or dart during oil and gas well operations (e.g., cementing operations) employs a specially configured tool body assembly having valving members (e.g., safety or kelly values) and valving members holding plugs, balls, or darts to be dropped. In one embodiment, the ball(s), dart(s) or plug(s) are contained in a sliding sleeve that shifts position responsive to valve rotation. An optional indicator indicates to a user or operator that a ball or plug has passed a selected one of the valving members. A transmitter (or transceiver) provides an ability to generate a wireless signal that is received by receivers (or transceivers) on the tool body assembly. Each receiver (or transceiver) controls an electrical actuator that engages a valving member or the indicator. Wireless signals can be used to open or close a valve or to reset a “tripped” indicator.
    Type: Grant
    Filed: February 14, 2014
    Date of Patent: April 7, 2015
    Assignee: Gulfstream Services, Inc.
    Inventors: Phil Barbee, Michael Mire, Joey Naquin
  • Publication number: 20150068764
    Abstract: An expandable downhole tool for use in an oil well, including a flexible member rolled into a helix and comprising first and second lateral edges on opposing lateral ends of the member. The flexible member is selectively changeable between a compressed configuration wherein the transverse cross-section of the flexible member has a first diameter, and an expanded configuration wherein the transverse cross-section of the flexible member has a second diameter, the second diameter larger than the first diameter.
    Type: Application
    Filed: September 12, 2013
    Publication date: March 12, 2015
    Applicant: Saudi Arabian Oil Company
    Inventor: Rafael Adolfo Lastra
  • Publication number: 20140367094
    Abstract: The present invention provides an apparatus and method for testing a wellbore, and to an apparatus and method to efficiently and effectively test the annular seal of a tubular string positioned within a wellbore. More specifically, the cement seal between a casing string and a wellbore is tested to assure there is no contamination of groundwater or between different geologic formations. An additional aspect of the present invention is to provide a testing assembly comprising a frangible body and a tool body, the tool body providing a passageway to the annular seal when the frangible body is drilled out. In one particular embodiment, the frangible body initially forms an encapsulated bore that aligns with the passageway.
    Type: Application
    Filed: June 12, 2014
    Publication date: December 18, 2014
    Applicant: COLORADO SCHOOL OF MINES
    Inventor: William W. Fleckenstein
  • Patent number: 8887807
    Abstract: An apparatus for installing cement plugs into a well, comprising a protective sleeve having one end adapted to be attached to the end of a drill pipe and arranged to carry a cementing plug around its outer surface such that a dart passing through the drill pipe can pass through the sleeve and engage only on formations on the plug to withdraw it from the end of the sleeve.
    Type: Grant
    Filed: November 24, 2009
    Date of Patent: November 18, 2014
    Assignee: Schlumberger Technology Corporation
    Inventors: Philippe Gambier, Laurent Coquilleau, James Metson
  • Publication number: 20140299329
    Abstract: A downhole tool and method of operation thereof is provided. The downhole tool may be configured to permit fluid communication between a combined flowbore of the casing string and the downhole tool and the subterranean formation or wellbore, or both, after a pressure test has been completed, a second threshold pressure is reached or applied, and a third threshold pressure has been applied to the downhole tool.
    Type: Application
    Filed: December 5, 2013
    Publication date: October 9, 2014
    Applicant: PETROQUIP ENERGY SERVICES, LLP
    Inventors: Kevin Scott Kippola, Tracy Dean Blanton, Todd Ulrich Chretien, William John Darnell
  • Patent number: 8807210
    Abstract: A downhole tool for use in a well. A pumpable plug is used to urge bottom hole assemblies to a desired location in a well. The pumpable plug has a diameter greater than the maximum outer diameter of the casing in which the bottom hole assembly is to be located.
    Type: Grant
    Filed: December 28, 2011
    Date of Patent: August 19, 2014
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Donald Ray Smith, Daniel Keith Moeller, Shawn Ray Webb
  • Patent number: 8789582
    Abstract: An apparatus for regulating fluid-flow during a primary cementing job comprises a bottom cementing plug, adapted to house a one-way valve and means to regulate fluid flow through the plug interior. The apparatus is useful for minimizing or preventing free fall or U-tubing during primary cementing. The apparatus is compatible with conventional cementing-plug launching systems.
    Type: Grant
    Filed: August 4, 2010
    Date of Patent: July 29, 2014
    Assignee: Schlumberger Technology Corporation
    Inventors: Joel Rondeau, Andre Salvaire
  • Patent number: 8776886
    Abstract: An apparatus for use in launching cement plugs in a well cementing operation, comprising: —a cylinder (104) having ports (106) defined in a portion of the wall thereof; —a piston (108) slideably received in the bore of the cylinder below the ports; and —an actuator (110) extending from the piston through the cylinder and operable by the piston for launching a plug from the apparatus into the well; wherein the apparatus further comprises an elongate sleeve valve member located in the cylinder above the piston, the sleeve valve member (112) comprising at least one ball seat (114a-114c) for receiving a ball to block the interior of the cylinder, sleeve ports formed in the sleeve above the ball seat, and a spacer (118) extending between the ball seat and the piston.
    Type: Grant
    Filed: December 1, 2009
    Date of Patent: July 15, 2014
    Assignee: Schlumberger Technology Corporation
    Inventor: Joel Rondeau
  • Publication number: 20140116712
    Abstract: A wellbore cleaning tool for removing irregularities along the inner surface of a wellbore tubular may include a top sub, a cutting assembly, and a bottom sub. The tool is operable to remove irregularities, such as debris, burrs, and jagged edges, along the inside of the wellbore tubular, and thereby provide a clean, inner surface finish. The tool may be actuated into a retracted position, an extended position, and/or a deactivated position.
    Type: Application
    Filed: October 26, 2012
    Publication date: May 1, 2014
    Applicant: Weatherford/Lamb, Inc.
    Inventors: Ram K. Bansal, Arthur Warren Meeks, Mohammed Aleemul Haq, Bin Xiao, Miroslav Mihalj, David Peter Kippie, Thomas F. Bailey
  • Publication number: 20140102690
    Abstract: A pipe in pipe piston thrust system comprises a plurality of piston assemblies configured to sealingly engage a wellbore, a pump configured to transfer a fluid into the wellbore, and a by-pass disposed between a plurality of annuli formed by the plurality of piston assemblies. The by-pass allows for selective communication of the fluid between the plurality of annuli.
    Type: Application
    Filed: December 17, 2013
    Publication date: April 17, 2014
    Applicant: HALLIBURTON ENERGY SERVICES, INC.
    Inventor: Richard Thomas Hay
  • Patent number: 8695695
    Abstract: A downhole tool for use in a well. The tool has a packer assembly and a pumpable plug associated with the packer assembly. The pumpable plug has a diameter greater than the maximum outer diameter of the packer assembly. The pumpable plug may be pumped through a casing having a diameter larger than that for which the packer assembly is designed and will urge the packer assembly through the large diameter casing into a smaller diameter casing for which the packer assembly is designed.
    Type: Grant
    Filed: April 1, 2011
    Date of Patent: April 15, 2014
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Daniel Keith Moeller, Shawn Ray Webb, Donald Ray Smith
  • Patent number: 8668003
    Abstract: A cement head used for performing cementing jobs in downhole operations is provided. The cement head includes wireless signaling means, an integrated energy supply, activating means for pneumatic operated valves in cement head, and controller means for controlling said energy supply for activation of at least one valve based on received signals through the wireless signaling means.
    Type: Grant
    Filed: October 23, 2009
    Date of Patent: March 11, 2014
    Assignee: Seawell Oil Tools AS
    Inventors: Stian Osmundsen, Krzysztof Klimas
  • Publication number: 20140048288
    Abstract: Methods and apparatus are presented for a hybrid downhole force generator (DFG) using a stroke amplifier driven by hydrostatic pressure for a low-force, long-stroke portion of setting a downhole tool and a DFG powered shaft for a high-force, short-stroke portion of setting the tool. The stroke amplifier has a piston slidable in a housing, movable in response to hydrostatic pressure. The DFG powered shaft is connected to the piston via one-way slips which allow relative motion of the piston and shaft in one direction. The amplifier housing is connected to the DFG housing. In use, the DFG shaft is powered by a power supply, such as an electric motor, etc. The shaft is powered to shear a shearing mechanism, freeing the piston to move in response to the hydrostatic pressure.
    Type: Application
    Filed: August 20, 2012
    Publication date: February 20, 2014
    Applicant: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Jack Gammill Clemens, David Russ Larimore
  • Patent number: 8651174
    Abstract: An improved method and apparatus for dropping a ball, plug or dart during oil and gas well operations (e.g., cementing operations) employs a specially configured tool body assembly having valving members (e.g., safety or kelly valves) and valving members holding plugs, balls, or darts to be dropped. A transmitter (or transceiver) provides an ability to generate a wireless signal that is received by receivers (or transceivers) on the tool body assembly. Each receiver (or transceiver) controls an electrical actuator that engages a valving member. Wireless signals can be used to open or close a selected valving member.
    Type: Grant
    Filed: April 5, 2011
    Date of Patent: February 18, 2014
    Assignee: Gulfstream Services, Inc.
    Inventors: Phil Barbee, Michael Mire, Joey Naquin
  • Publication number: 20140034301
    Abstract: Various systems and methods for cementing plug tracking using distributed strain sensing include a downhole cementing apparatus that includes a distributed strain sensor with an optical cable and a first downhole cementing plug coupled to a fixed point on the optical cable. The apparatus further includes a second downhole cementing plug slidably coupled to the optical cable between the first downhole cementing plug and a sensing end of the optical cable. The second downhole cementing plug causes a detectable feature in a strain profile along the optical cable's length that indicates a position of the second downhole cementing plug.
    Type: Application
    Filed: July 31, 2012
    Publication date: February 6, 2014
    Applicant: HALLLIBURTON ENERGY SERVICES, INC.
    Inventor: Michel J. LEBLANC
  • Publication number: 20140014372
    Abstract: A pipe in pipe piston thrust system comprises a plurality of piston assemblies configured to sealingly engage a wellbore, a pump configured to transfer a fluid into the wellbore, and a by-pass disposed between a plurality of annuli formed by the plurality of piston assemblies. The by-pass allows for selective communication of the fluid between the plurality of annuli.
    Type: Application
    Filed: July 13, 2012
    Publication date: January 16, 2014
    Applicant: HALLIBURTON ENERGY SERVICES, INC.
    Inventor: Richard Thomas Hay
  • Publication number: 20130327537
    Abstract: Techniques and equipment to facilitate controlling flow of a fluid along a flow passage. A flow control assembly is placed along a flow passage, and a bypass is routed past the flow control assembly. Flow along the bypass is controlled by a flow bypass mechanism which may be operated via pressure increase within the flow control assembly. A shear device restricts the opening of the bypass, and a dampening device acts to limit the shear device to exposure of forces from the pressure increase.
    Type: Application
    Filed: December 20, 2012
    Publication date: December 12, 2013
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Steven L. Anyan, Ricardo Martinez, Tauna Leonardi
  • Patent number: 8528633
    Abstract: A method of dissolving a tool includes positioning the tool within an environment reactive with at least a portion of the tool, and introducing the environment below a surface of the tool through at least one perforation formed therein. The method also includes reacting at least a portion of the tool exposed to the environment through the at least one perforation, weakening the tool to mechanical stress, and fracturing the tool.
    Type: Grant
    Filed: December 8, 2009
    Date of Patent: September 10, 2013
    Assignee: Baker Hughes Incorporated
    Inventors: Gaurav Agrawal, Zhiyue Xu
  • Publication number: 20130213658
    Abstract: Improved darts and methods of using these darts in subterranean wells are disclosed. The improved dart comprises a foam portion and a rubber portion coupled to the foam portion. A dart nose is coupled to at least one of the foam portion and the rubber portion. The foam portion and the rubber portion are configured to interface with an inner surface of at least one of a well bore wall, a pipe, and a casing string.
    Type: Application
    Filed: February 16, 2012
    Publication date: August 22, 2013
    Inventors: Gary Joe Makowiecki, Patrick Lyle Cherney
  • Publication number: 20130206396
    Abstract: A piston tractor system can include at least two piston assemblies which sealingly engage a wellbore, and a pump which transfers fluid between an annulus isolated between the piston assemblies, and another annulus. A method of operating a piston tractor system can include sealingly engaging at least two piston assemblies with a wellbore, grippingly engaging one piston assembly with the wellbore, and then pumping a fluid from an annulus formed between the piston assemblies, while the other piston assembly is secured to a tubular string, thereby biasing the tubular string to displace through the first piston assembly. A method of advancing a tubular string through a wellbore can include sealingly engaging piston assemblies with the wellbore, each of the piston assemblies including a gripping device which selectively grips the wellbore, and one piston assembly including another gripping device which selectively grips the tubular string.
    Type: Application
    Filed: January 30, 2013
    Publication date: August 15, 2013
    Applicant: HALLIBURTON ENERGY SERVICES, INC.
    Inventor: HALLIBURTON ENERGY SERVICES, INC.
  • Patent number: 8469103
    Abstract: A method and system operates a well having an outer casing, a tubing positioned inside the outer casing, and a plunger moveable within the tubing to periodically draw out a liquid slug. A chemical to slug size ratio is set by the operator. Thereafter, the gas flow rate is monitored and the well is shut-in when the gas flow rate drops below a predetermined threshold. After well shut-in, a calculated amount of chemical foaming agent is injected. The size of the liquid slug is calculated and then the well is opened, drawing the plunger and liquid slug up to the surface. The calculated amount of chemical foaming agent is calculated based on one or more previous liquid slug size determinations and the set chemical to slug size ratio.
    Type: Grant
    Filed: July 22, 2010
    Date of Patent: June 25, 2013
    Assignee: ABB Inc.
    Inventor: David Barry
  • Publication number: 20130140025
    Abstract: An apparatus for remotely launching cementing plugs is configured such that the length of a dart is not necessarily the same as the corresponding plug to be launched. Such a design presents operational and ergonomic advantages, particularly in an offshore environment. Methods for launching cementing plugs and cementing a subterranean well are also presented.
    Type: Application
    Filed: October 15, 2012
    Publication date: June 6, 2013
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventor: Schlumberger Technology Corporation
  • Patent number: 8443902
    Abstract: A time controlled release device for down line tools includes an outer housing, a disconnect housing releasably coupled to the outer housing, and a mandrel extending longitudinally within the outer housing and the disconnect housing. In addition, the device includes a locking collet and a trigger sleeve disposed about the mandrel. Further, the device includes a first biasing spring disposed within the outer housing between the locking collet and a first shoulder of the outer housing. Still further, the device includes a release collet forming a portion of the outer housing at the distal end and a disconnect release sleeve mounted on the mandrel. Moreover, the device includes a second spring disposed within the outer housing between a second shoulder of the outer housing and a pressure piston mounted on the mandrel between the second spring and a shoulder of the mandrel. The pressure piston has a metering orifice therethrough.
    Type: Grant
    Filed: June 23, 2009
    Date of Patent: May 21, 2013
    Assignee: Halliburton Energy Services, Inc.
    Inventor: Robert W. Evans
  • Publication number: 20130014948
    Abstract: An apparatus for installing cement plugs into a well, comprising a protective sleeve having one end adapted to be attached to the end of a drill pipe and arranged to carry a cementing plug around its outer surface such that a dart passing through the drill pipe can pass through the sleeve and engage only on formations on the plug to withdraw it from the end of the sleeve.
    Type: Application
    Filed: November 24, 2009
    Publication date: January 17, 2013
    Applicant: Schlumberger Technology Corporation
    Inventors: Philippe Gambier, Laurent Coquilleau, James Metson
  • Patent number: 8347965
    Abstract: An apparatus for wellbore fluid treatment having a body with a lower end, an upper end, an exterior surface and an interior surface defining a long bore open at the upper end, an outlet port spaced from the upper end, and a die in the long bore between the upper end and the outlet port. The outlet port permits the communication of fluids between the long bore and the exterior surface. The die is substantially immovable within the long bore and has an inner open diameter in which a plug is landable to create a seal in the long bore before passing through the inner open diameter.
    Type: Grant
    Filed: December 23, 2009
    Date of Patent: January 8, 2013
    Assignee: Sanjel Corporation
    Inventors: Jeffrey W. Spence, James K. Gray, Bailey T. Epp, Alberto Martinez, Liguo Zhou
  • Patent number: 8327937
    Abstract: An apparatus for remotely launching cementing plugs is configured such that the length of a dart need not necessarily be the same as the corresponding plug to be launched. A hydraulic-liquid reservoir and a piston are incorporated into a plug-launching system. The size of the reservoir may be adjusted such that the axial displacement of the piston after the dart lands is sufficient to cause the expulsion of a plug from the apparatus.
    Type: Grant
    Filed: December 17, 2009
    Date of Patent: December 11, 2012
    Assignee: Schlumberger Technology Corporation
    Inventors: Greg Giem, Philippe Gambier, Chris Fitzgerald
  • Patent number: 8327930
    Abstract: Apparatus and methods for remotely launching cementing plugs during the primary cementation of a subterranean well. The apparatus includes a flexible sleeve that absorbs force exerted by activation devices as they arrive at a cementing head, thereby preventing premature release of a cementing plug.
    Type: Grant
    Filed: September 10, 2010
    Date of Patent: December 11, 2012
    Assignee: Schlumberger Technology Corporation
    Inventor: Joel Rondeau
  • Patent number: 8316931
    Abstract: Equipment for servicing subterranean wells, and in some cases, an apparatus and method for remotely launching cementing plugs during the primary cementation of a subterranean well. The top plug and bottom plug are launched by different mechanisms, thereby preventing premature release of the top plug during a cementing operation.
    Type: Grant
    Filed: August 27, 2010
    Date of Patent: November 27, 2012
    Assignee: Schlumberger Technology Corporation
    Inventors: Joel Rondeau, André Salvaire
  • Patent number: 8291988
    Abstract: A tubular actuating system includes, a tubular, a plurality of same plugs runnable within the tubular, a sleeve disposed at the tubular, and at least one slide that is movably disposed at the sleeve between at least a first position and a second position, the at least one slide is configured to be seatingly engagable with a first of the plurality of same plugs when in the first position and seatingly engagable with a second of the plurality of same plugs when in the second position.
    Type: Grant
    Filed: August 10, 2009
    Date of Patent: October 23, 2012
    Assignee: Baker Hughes Incorporated
    Inventor: James G. King
  • Publication number: 20120234561
    Abstract: A dual wiper plug system having a first wiper including a first body having a first bore therethrough, and at least one wiper fin disposed around the body, a second wiper disposed axially above the first wiper, the second wiper including a second body having a second bore therethrough and a first shoulder formed on the inner surface of the second body, and at least one wiper fin disposed around the body, and a first collet ring coupled to the first wiper and including at least one collet finger extending axially upward, and a collet head disposed on an upper end of the collet finger and configured to engage the first shoulder of the second body.
    Type: Application
    Filed: March 14, 2011
    Publication date: September 20, 2012
    Applicant: SMITH INTERNATIONAL, INC.
    Inventors: James HALL, Cem MONUR
  • Patent number: 8201634
    Abstract: A subsea cementing system that includes a first wiper plug having a central bore releasably connected to a launching mandrel, and a second wiper plug having a central bore releasably connected to the first wiper plug. The system includes a first dart that is adapted to seal the central bore of the second wiper plug. A first increase in pressure releases the second wiper plug from the first wiper plug and a second increase in pressure breaks a burst disc of the first dart allowing cement to flow past the second wiper plug. A second wiper dart is adapted to seal the central bore of the first wiper plug. A third increase in pressure releases the first wiper plug from the launching mandrel. A fourth increase in pressure releases a sealing member from the second dart, which is adapted to seal the central bore of the second wiper plug.
    Type: Grant
    Filed: May 20, 2009
    Date of Patent: June 19, 2012
    Assignee: Baker Hughes Incorporated
    Inventors: David Fernando Laurel, Kurt Randall Koenig
  • Patent number: 8181706
    Abstract: In a hydrocarbon producing wellbore, liquids (oil, condensate, water of mixtures thereof) from the formation may accumulate and build up a hydrostatic pressure gradient, which can kill gas production. Various embodiments of the present invention include a plunger lift system that can remove said formation liquids from a wellbore. A piston, including a sleeve with a hollow passage may travel downhole, accumulate formation liquids and utilizing the gas pressure deliver said formation liquids to the top of the wellbore for removal. The piston face may be one single wall that closes the hollow passage or the piston face may be comprised of a plug and an seat that unite to form a complete piston face downhole. Aspects of the plunger lift system, for example the sleeve and or the plug may be at least partially formed from materials that are buoyant in the formation liquids.
    Type: Grant
    Filed: May 21, 2010
    Date of Patent: May 22, 2012
    Assignee: IPS Optimization Inc.
    Inventor: Michael Spencer Tanton
  • Publication number: 20120103592
    Abstract: A down hole well tool (1) comprising a tool unit comprising at least one first fluid conduit (2) and a return fluid conduit (3) in use forming a well annulus between the tool unit and a well bore, and at least one piston (4) dividing the well annulus into well annulus spaces. The piston comprises at least two piston bodies wherein a first piston body (4a) is arranged to rotate with the tool unit and a second piston body (4b) is arranged in a position in between the first piston body and the well bore. The first piston body is arranged to rotate relative the second piston body and first sealing means are arranged in between the first piston body and the second piston body.
    Type: Application
    Filed: July 2, 2010
    Publication date: May 3, 2012
    Applicant: REELWELL AS
    Inventor: Espen Alhaug
  • Patent number: 8167052
    Abstract: A system for delivering a cable through a tubing string to a downhole location in a well, includes a plug and a receiver. The plug includes a first connector configured to be operably connected to the cable and further includes a plug housing adapted to fit within the tubing string. A check valve operably associated with a passage in the plug housing restricts fluid flow through the passage in a downhole direction and allows fluid flow through the passage in an uphole direction. The receiver is configured to be positioned at the downhole location and includes a receiver housing and a second connector configured to be operably connected to a downhole device. The second connector is adapted to communicate with the first connector when the receiver and plug housings are engaged.
    Type: Grant
    Filed: August 6, 2010
    Date of Patent: May 1, 2012
    Assignee: Pine Tree Gas, LLC
    Inventor: Joseph A. Zupanick
  • Patent number: 8162053
    Abstract: A elongated plunger assembly for pressurized, conduit-enclosed travel utilized in recovery of hydrocarbon deposits in a ground penetrating oil or gas well. The plunger comprises an elongated mandrel, a plurality of radially movable curvilinear wear pads circumferentially disposed adjacent each end of the elongated mandrel, a pad-edge retaining housing extending on at least one end of the elongated mandrel to enclosably retain the longitudinally distal end of a circumferential array of wear pads onto the mandrel, and a centrally disposed wear pad securement ring arrangement to permit release of a worn wear pad, replacement of the worn wear pad at an inner longitudinal edge thereof, thus to permit simple field-accessable removal and replacement of any particular “conduit-worn” “wear” pad from the mandrel of the plunger.
    Type: Grant
    Filed: July 14, 2009
    Date of Patent: April 24, 2012
    Assignee: Well Master Corp.
    Inventors: David A. Green, Robert E. Bender
  • Patent number: 8127846
    Abstract: A method and system for cementing and perforating a wellbore in a single step by coupling a perforating gun with a wiper plug. The method includes injecting cement in a wellbore having casing therein and an annulus between the casing and wellbore. A wiper plug is dropped on the cement having a perforating gun attached to the wiper plug. The plug is forced downward pulling the perforating gun along. The downward motion of the plug in turn pushes the cement out the bottom end of the casing and into the annulus. The cement in the annulus is allowed to set and the perforating gun is activated.
    Type: Grant
    Filed: February 27, 2009
    Date of Patent: March 6, 2012
    Assignee: Baker Hughes Incorporated
    Inventors: Freeman L. Hill, Randy L. Evans, John H. Clark, Mark L. Sloan, William D. Myers, Jr., Joseph Gregory Barolak, George Patton
  • Patent number: 8025102
    Abstract: An apparatus for delivering a material into a wellbore comprises a body adapted to be translated along a conduit within a wellbore, with a cavity formed in the body for containing a material to be delivered. The body defines an outlet adapted to be selectively opened to permit the material to be released from the cavity at the required location within the wellbore. In one arrangement the material includes swellable particles which expand upon contact with an activator.
    Type: Grant
    Filed: June 19, 2008
    Date of Patent: September 27, 2011
    Assignee: Swellfix BV
    Inventor: John Dewar
  • Patent number: 7987906
    Abstract: A gas insertion tool for cleaning a well bore is connected to the down hole end of a fluid supply tubing inserted through a positioning string within a well bore. Fluid pressure within the string pushes the well tool therethrough pulling the fluid supply line and then exiting the well string within the well bore adjacent its termination. The positioning string is retrieved leaving the tool wedgeably secured within the well bore for dispensing pressurized fluid within the well bore dislodging fluid and trapped foreign material within the horizontal leg of the well bore.
    Type: Grant
    Filed: December 15, 2008
    Date of Patent: August 2, 2011
    Inventor: Joseph Troy
  • Publication number: 20110146986
    Abstract: An apparatus for remotely launching cementing plugs is configured such that the length of a dart is not necessarily the same as the corresponding plug to be launched. Such a design presents operational and ergonomic advantages, particularly in an offshore environment. Methods for launching cementing plugs and cementing a subterranean well are also presented.
    Type: Application
    Filed: December 17, 2009
    Publication date: June 23, 2011
    Inventors: Greg Giem, Philippe Gambier, Chris Fitzgerald
  • Publication number: 20110139435
    Abstract: The apparatus of the present invention provides a top drive supported tool for making up and running casing strings into a borehole. The tool comprises a fill-up and circulation assembly and a launcher assembly that is adapted to cooperate with a connectable cement wiper plug assembly for launching wiper plugs that control cement placement in the annulus between a casing string and a borehole containing the casing string. The tool of the present invention shortens or eliminates delays in well operations, thereby improving integrity of cement liners formed by placing cement slurry in a targeted interval.
    Type: Application
    Filed: December 17, 2010
    Publication date: June 16, 2011
    Applicant: FRANK'S INTERNATIONAL, INC.
    Inventors: Burney J. Latiolais, JR., Keith Thomas Lutgring, Samuel P. Hawkins, III
  • Publication number: 20110120705
    Abstract: Systems, methods, and instructions encoded in a computer-readable medium can perform operations related to simulating injection treatments applied to a subterranean formation from multiple well bores in the subterranean formation. A subterranean formation model representing rock blocks of a subterranean formation is received. Information on multiple injection treatments for multiple well bores in the subterranean formation is received. The subterranean formation model and the information on the injection treatments is used to predict a response of each of the rock blocks to forces acting on the rock block during the injection treatments. The injection treatments may include, for example, multiple fracture treatments for simultaneous application to the subterranean formation. In some implementations, injection treatments may be designed for a multiple-well bore system based on the predicted response of the rock blocks.
    Type: Application
    Filed: November 25, 2009
    Publication date: May 26, 2011
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Harold G. Walters, Ronald E. Hyden
  • Publication number: 20110067865
    Abstract: Apparatus and methods for remotely launching cementing plugs during the primary cementation of a subterranean well. The apparatus includes a flexible sleeve that absorbs force exerted by activation devices as they arrive at a cementing head, thereby preventing premature release of a cementing plug.
    Type: Application
    Filed: September 10, 2010
    Publication date: March 24, 2011
    Inventor: Joel Rondeau