Surrounding Conduit Valve Or Closure Opened By Piston Patents (Class 166/154)
  • Patent number: 9714557
    Abstract: A sliding sleeve opens with a deployed ball. The sleeve has a seat disposed in the housing, and the seat has segments biased outward from one another with a C-ring or other biasing element. Initially, the seat has an expanded state in the sliding sleeve so that the seats segments expand outward against the housing's bore. When an appropriately sized ball is deployed downhole, the ball engages the expanded seat. Fluid pressure applied against the seated ball moves the seat into the inner sleeve's bore. As this occurs, the seat contracts, which increases the engagement area of the seat with the ball. Eventually, the seat reaches the shoulder in the inner sleeve so that pressure applied against the seated ball now moves the inner sleeve in the housing to open the sliding sleeve's flow port.
    Type: Grant
    Filed: December 12, 2013
    Date of Patent: July 25, 2017
    Assignee: Weatherford Technology Holdings, LLC
    Inventor: Cesar G. Garcia
  • Patent number: 9683419
    Abstract: An actuation dart for actuating a target tool in a tubing string, the actuation dart includes: a body conveyable through the tubing string to reach the target tool; a control module configured to respond to contact with at least one downhole tool in the tubing string to locate the target tool; and an actuation mechanism for actuating the target tool when it is located.
    Type: Grant
    Filed: October 6, 2011
    Date of Patent: June 20, 2017
    Assignee: Packers Plus Energy Services, Inc.
    Inventor: Robert Joe Coon
  • Patent number: 9677380
    Abstract: A sliding sleeve opens with a deployed ball. The sleeve has a seat disposed in the housing, and the seat has segments biased outward from one another with a C-ring or other biasing element. Initially, the seat has an expanded state in the sliding sleeve so that the seats segments expand outward against the housing's bore. When an appropriately sized ball is deployed downhole, the ball engages the expanded seat. Fluid pressure applied against the seated ball moves the seat into the inner sleeve's bore. As this occurs, the seat contracts, which increases the engagement area of the seat with the ball. Eventually, the seat reaches the shoulder in the inner sleeve so that pressure applied against the seated ball now moves the inner sleeve in the housing to open the sliding sleeve's flow port.
    Type: Grant
    Filed: December 12, 2013
    Date of Patent: June 13, 2017
    Assignee: Weatherford Technology Holdings, LLC
    Inventor: James F. Wilkin
  • Patent number: 9631454
    Abstract: The present invention provides wellbore pressure control system and method for well cementation stages, and relates to the offshore oil and gas exploitation field. The wellbore pressure control system comprises: an injection pump; and a control device, configured to control the injection pump to inject a fluid or gas through an injection pipeline to a return pipeline that communicates with an annular space of the wellbore to decrease the pressure in the return pipeline and thereby decrease the pressure in the annular space, wherein, the density of the fluid or gas is lower than the density of a drilling fluid in the annular space. The technical scheme of the present invention can effectively prevent leaky zones from being fractured by high-density cement slurry in the well cementation process that may cause safety accidents such as well kick and well blowout, etc.
    Type: Grant
    Filed: October 13, 2016
    Date of Patent: April 25, 2017
    Assignee: China University of Petroleum (East China)
    Inventors: Baojiang Sun, Xuerui Wang, Yingwen Ma, Yonghai Gao
  • Patent number: 9624756
    Abstract: A sliding sleeve opens with a deployed ball. The sleeve has a seat disposed in the housing, and the seat has segments biased outward from one another with a C-ring or other biasing element. Initially, the seat has an expanded state in the sliding sleeve so that the seats segments expand outward against the housing's bore. When an appropriately sized ball is deployed downhole, the ball engages the expanded seat. Fluid pressure applied against the seated ball moves the seat into the inner sleeve's bore. As this occurs, the seat contracts, which increases the engagement area of the seat with the ball. Eventually, the seat reaches the shoulder in the inner sleeve so that pressure applied against the seated ball now moves the inner sleeve in the housing to open the sliding sleeve's flow port.
    Type: Grant
    Filed: December 12, 2013
    Date of Patent: April 18, 2017
    Assignee: Weatherford Technology Holdings, LLC
    Inventors: Michael W. Cast, James F. Wilkin
  • Patent number: 9605501
    Abstract: In accordance with one aspect of the disclosure a system includes a plug launching assembly, including a housing. The system also includes a first flow assembly of the plug launching assembly including a first primary flow path configured to direct a fluid flow into a wellbore. Moreover, the first flow assembly is configured to transition from a first position to a second position within the plug launching assembly. Also, the first flow assembly is releasably coupled to the housing while in the first position. The system further includes a second flow assembly of the plug launching assembly coupled to the housing and positioned downstream of the first flow assembly. The first flow assembly engages the second flow assembly while the first flow assembly is in the second position. The system also includes a cement plug releasably coupled to the second flow assembly.
    Type: Grant
    Filed: January 12, 2015
    Date of Patent: March 28, 2017
    Assignee: TESCO CORPORATION
    Inventor: Kevin James Nikiforuk
  • Patent number: 9598932
    Abstract: A downhole flow control apparatus comprising: at least one tubular body (1) locatable at a zone of a well, the tubular body (1) having a longitudinal through bore and one or more transverse ports (5a, 5b) and a port covering device (3) which, in use, is movable from a lower position in which the or each port is covered to an upper position in which the or each port is open; and at least one plugging device (6) which is operable to travel downhole from the surface to locate within and seal the through bore of the tubular body, the plugging device including moving means (10) to cause the port covering device (3) to move from the lower position to the upper position thus allowing fluid communication between the through bore and the or each port (5a, 5b).
    Type: Grant
    Filed: May 24, 2012
    Date of Patent: March 21, 2017
    Inventors: David Glen Martin, Roland Marcel Van Dort
  • Patent number: 9593545
    Abstract: In a drill string for oil wells and the like a method and apparatus for delivering fluids to the drilled hole employs a bypass port above fluid outlets in the distal end of the string. The port may be used to deliver fluid such as lost circulation material (LCM) to the drilled hole from the surface. A volume of the fluid may be locked in the string between the port and the fluid outlets such that fluid is prevented from passing from the hole into the string via the fluid outlets.
    Type: Grant
    Filed: May 7, 2010
    Date of Patent: March 14, 2017
    Assignee: Churchill Drilling Tools Limited
    Inventor: Andrew Churchill
  • Patent number: 9593553
    Abstract: A sliding sleeve opens with a deployed ball. The sleeve has a seat disposed in the housing, and the seat has segments biased outward from one another with a C-ring or other biasing element. Initially, the seat has an expanded state in the sliding sleeve so that the seats segments expand outward against the housing's bore. When an appropriately sized ball is deployed downhole, the ball engages the expanded seat. Fluid pressure applied against the seated ball moves the seat into the inner sleeve's bore. As this occurs, the seat contracts, which increases the engagement area of the seat with the ball. Eventually, the seat reaches the shoulder in the inner sleeve so that pressure applied against the seated ball now moves the inner sleeve in the housing to open the sliding sleeve's flow port.
    Type: Grant
    Filed: December 12, 2013
    Date of Patent: March 14, 2017
    Assignee: Weatherford Technology Holdings, LLC
    Inventors: Michael Shane Larisey, Patrick J. Zimmerman, Raymond Shaffer, Luke Richey, Scott Williamson
  • Patent number: 9534471
    Abstract: A technique provides a system and methodology for treating a plurality of zones, e.g. well zones. A plurality of flow control devices is located along a tubular structure, such as a well string in a wellbore. Each flow control device comprises a seat member with an annularly located recess having a unique profile relative to the annularly located recesses of the other flow control devices. Darts are designed with engagement features sized to correspond with selected annularly located recesses. Each dart may have an engagement feature of a specific length designed to engage the corresponding recess of a specific flow control device to enable actuation of that flow control device once the dart is dropped through the tubular structure.
    Type: Grant
    Filed: September 30, 2011
    Date of Patent: January 3, 2017
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventor: Ethan Etzel
  • Patent number: 9500066
    Abstract: One disclosed sleeve assembly disposed within a base pipe includes a first sleeve portion having a first shear resistance for resisting movement of the sleeve assembly with respect to the base pipe, and a second sleeve portion moveable with respect the first sleeve portion and having a second shear resistance for resisting movement of the second sleeve portion with respect to the first sleeve portion, the second shear resistance being greater than the first shear resistance.
    Type: Grant
    Filed: April 7, 2014
    Date of Patent: November 22, 2016
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Frank V. Acosta, Nicholas Frederick Budler, John Roland Key
  • Patent number: 9464503
    Abstract: A secondary cementing apparatus includes a drill string, a coupling coupled to a distal end of the drill string, and a tool coupled to a distal end of the coupling, the tool having a distal portion offset from a central axis of the drill string, and the coupling configured to allow selective rotation of the tool with respect to the drill string. A method for plugging a hole includes rotating a drill string about a central axis of the drill string, wherein a distal end of the drill string is coupled to a tool, the tool having an offset distal portion from a central axis of the drill string; and flowing a fluid down the drill string and out of the offset distal portion of the tool as the drill string is rotated.
    Type: Grant
    Filed: March 13, 2014
    Date of Patent: October 11, 2016
    Inventor: Charles Ingold
  • Patent number: 9464501
    Abstract: Zone isolation is a leading concern for operators that wish to fluidly treat a well. Typically in an open hole packers hydraulically actuated solid body packers have been are deployed at particular intervals along the wellbore to provide zonal isolation of various formations or portions of a formation. By isolating the various zones valves may be selectively opened or closed to treat a particular zone independently of the remainder of the well. In an improvement over the past procedures a cup style packer that is particularly useful in open hole may now be used.
    Type: Grant
    Filed: April 24, 2013
    Date of Patent: October 11, 2016
    Assignee: Trican Completion Solutions AS
    Inventor: Braekke Kristoffer
  • Patent number: 9441470
    Abstract: A technique that is usable with a well includes deploying a plurality of location markers in a passageway of the well and deploying an untethered object in the passageway such that the object travels downhole via the passageway. The technique includes using the untethered object to sense proximity of at least some of the location markers as the object travels downhole, and based on the sensing, selectively expand its size to cause the object to become lodged in the passageway near a predetermined location.
    Type: Grant
    Filed: May 28, 2013
    Date of Patent: September 13, 2016
    Assignee: Schlumberger Technology Corporation
    Inventors: Julio C. Guerrero, Gary L. Rytlewski, Bruno Lecerf, Michael J. Bertoja, Christian Ibeagha, Alex Moody-Stuart, Adam Mooney, Jay Russell, Christopher Hopkins, Adam Paxson, Billy Anthony, Dinesh Patel
  • Patent number: 9410399
    Abstract: A method of cementing a liner string into a wellbore includes deploying a liner string into a wellbore; pumping cement slurry into a workstring; and pumping a dart through the workstring, thereby driving the cement slurry into the liner string. The dart engages a first wiper plug and releases the first wiper plug from the workstring. The dart and engaged first wiper plug drive the cement slurry through the liner string and into an annulus formed between the liner string and the wellbore. The dart and engaged first wiper plug land onto a first fracture valve. The dart releases a first seat into the first wiper plug. The dart engages a second wiper plug connected to the first fracture valve and releases the second wiper plug from the first fracture valve.
    Type: Grant
    Filed: July 30, 2013
    Date of Patent: August 9, 2016
    Assignee: Weatherford Technology Holdings, LLC
    Inventor: Clayton R. Andersen
  • Patent number: 9376886
    Abstract: Systems and methods for remotely setting a downhole device. The system includes a base pipe having inner and outer radial surfaces and defining one or more pressure ports extending between the inner and outer radial surfaces. An internal sleeve is arranged against the inner radial surface and slidable between a closed position, where the internal sleeve covers the one or more pressure ports, and an open position, where the one or more pressure ports are exposed to an interior of the base pipe. A trigger housing is disposed about the base pipe and defines an atmospheric chamber in fluid communication with the one or more pressure ports. A piston port cover is disposed within the atmospheric chamber and moveable between blocking and exposed positions. A wellbore device is used to engage and move the internal sleeve into the open position by applying predetermined axial force to the internal sleeve.
    Type: Grant
    Filed: April 24, 2015
    Date of Patent: June 28, 2016
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Frank V. Acosta, Wesley G. Duke, Stoney M. Yates, John Key, Nicholas Budler
  • Patent number: 9371716
    Abstract: The present disclosure provides techniques for a self-extendable hydraulic wellbore cleaning tool. The cleaning tool includes one or more extending nozzles which eject cleaning fluid onto the walls of a wellbore with increased impact momentum due to the shorter range. The extending nozzles can extend from the cleaning tool to a distance away from the cleaning tool, bringing the point of ejection closed to the walls of the wellbore. In certain example embodiments, the cleaning tool also includes one or more flow guides which direct the flow of cleaning fluid ejected from the nozzles. The flow guides cause the cleaning fluid to rotate when ejected from the nozzles, and causes the cleaning fluid to impact the walls of the wellbore at an angle.
    Type: Grant
    Filed: May 9, 2014
    Date of Patent: June 21, 2016
    Assignee: Chevron U.S.A. Inc.
    Inventors: Namhyo Kim, Antonio Lazo, Earl B. Claiborne, Jr., Dexter G. Pazziuagan
  • Patent number: 8770275
    Abstract: A high-pressure casing fill-up and circulating assembly and method of use is disclosed. The fill and circulating assembly, when inserted into the uppermost portion of the casing, will allow the casing to be filled while each section of casing is added. In one configuration there can be a cup type seal that seals in the casing simply by inserting the circulator into the casing. In yet another configuration the casing circulator portion can be anchored in the casing by manipulating the setting apparatus of the circulator thus anchoring the circulator to the casing and a settable seal unit will be energized to seal between the casing and the circulator.
    Type: Grant
    Filed: August 31, 2011
    Date of Patent: July 8, 2014
    Inventor: Albert A. Mullins
  • Publication number: 20140034310
    Abstract: A method of cementing a liner string into a wellbore includes deploying a liner string into a wellbore; pumping cement slurry into a workstring; and pumping a dart through the workstring, thereby driving the cement slurry into the liner string. The dart engages a first wiper plug and releases the first wiper plug from the workstring. The dart and engaged first wiper plug drive the cement slurry through the liner string and into an annulus formed between the liner string and the wellbore. The dart and engaged first wiper plug land onto a first fracture valve. The dart releases a first seat into the first wiper plug. The dart engages a second wiper plug connected to the first fracture valve and releases the second wiper plug from the first fracture valve.
    Type: Application
    Filed: July 30, 2013
    Publication date: February 6, 2014
    Applicant: WEATHERFORD/LAMB, INC.
    Inventor: Clayton R. ANDERSEN
  • 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: 8322447
    Abstract: An apparatus that is usable with a well includes an operator and a generator. The operator is disposed in the well and configured to respond to a differential pressure between hydraulically isolated zones of the well to produce mechanical motion. The generator is disposed in the well to convert the mechanical motion into electricity. A method that is usable with a well is provided including maintaining hydraulic isolation between a first and second zone of a well. While maintaining the hydraulic isolation, the method further includes producing a mechanical motion in response to a differential pressure between the first and second zones and generating electricity in response to the mechanical motion.
    Type: Grant
    Filed: December 31, 2009
    Date of Patent: December 4, 2012
    Assignee: Schlumberger Technology Corporation
    Inventors: Ives D. Loretz, Gary L. Rytlewski
  • Patent number: 8316943
    Abstract: An apparatus and method for operating a packer and a fracture valve. The packer may include a tubular mandrel having a longitudinal bore with an annular packing element and a first piston disposed around the mandrel, wherein the first piston is operable to set the packing element, and a second piston operable to isolate fluid communication between the first piston and the mandrel bore. The fracture valve may include a tubular mandrel having a longitudinal bore and a port, a piston operable to close fluid communication between the bore and the port, and a latch disposed between the piston and the mandrel operable to resist movement of the piston.
    Type: Grant
    Filed: October 20, 2010
    Date of Patent: November 27, 2012
    Assignee: Weatherford/Lamb, Inc.
    Inventors: Walter Stone Thomas Fagley, IV, Gary Duron Ingram, Christopher Carter Johnson
  • Patent number: 8267174
    Abstract: An anchoring device for stopping movement of a sliding component in a mandrel or case is disclosed. The anchoring device includes an elastically deformable anchor seat and an elastically deformable anchor retainer insertable into the anchor seat. The anchor seat has a groove profile thereon which will mate with a groove profile on the mandrel in an anchoring position. The retainer is insertable into the anchor seat and will hold the anchor seat in the anchoring position.
    Type: Grant
    Filed: August 20, 2009
    Date of Patent: September 18, 2012
    Assignee: Halliburton Energy Services Inc.
    Inventors: Henry E. Rogers, Steve L. Holden, David D. Szarka
  • Publication number: 20120067595
    Abstract: A method of operating an isolation valve in a wellbore includes: deploying a work string into the wellbore through a tubular string disposed in the wellbore. The work string comprises a deployment string, a shifting tool, and a bottomhole assembly (BHA). The tubular string comprises the isolation valve and an actuator. The method further includes rotating the actuator using the shifting tool, thereby opening or closing the isolation valve. The isolation valve isolates a formation from an upper portion of the wellbore in the closed position.
    Type: Application
    Filed: September 20, 2011
    Publication date: March 22, 2012
    Inventors: Joe Noske, Roddie R. Smith, Paul L. Smith, Thomas F. Bailey, Christopher L. McDowell
  • Publication number: 20120048574
    Abstract: A fill up tool includes a mandrel; a primary sealing member disposed around the mandrel; and a selectively operable secondary sealing member activated by rotation of the mandrel. In another embodiment, the selectively operable secondary sealing member is activated using hydraulic pressure.
    Type: Application
    Filed: August 9, 2011
    Publication date: March 1, 2012
    Inventors: Jimmy Duane Wiens, Yury P. Gutsu, Benson Thomas, Karsten Heidecke, Jim Hollingsworth, Doyle Fredric Boutwell, JR., Rodney Stephens, Russell W. Thompson, Patrick James Zimmerman
  • Publication number: 20110265987
    Abstract: A downhole actuator apparatus that selectively maintains a pressure differential between two pressure regions in a well. The apparatus includes a body defining first and second chambers. A piston is slidably disposed in the body and is selectively moveable between first and second positions. A barrier is disposed in the body to selectively separate the first and second chambers. A fluid is disposed in the first chamber between the barrier and the piston. A control system that is at least partially disposed within the body is operable to generate an output signal responsive to receipt of a predetermined input signal. The output signal is operable to create a failure of the barrier such that at least a portion of the fluid flows from the first chamber to the second chamber and the piston moves from the first position to the second position.
    Type: Application
    Filed: April 28, 2010
    Publication date: November 3, 2011
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Adam Wright, Donald Herbert Perkins, Michael Linley Fripp, Scott Luke Miller
  • Publication number: 20110155393
    Abstract: An apparatus that is usable with a well includes an operator and a generator. The operator is disposed in the well and configured to respond to a differential pressure between hydraulically isolated zones of the well to produce mechanical motion. The generator is disposed in the well to convert the mechanical motion into electricity. A method that is usable with a well is provided including maintaining hydraulic isolation between a first and second zone of a well. While maintaining the hydraulic isolation, the method further includes producing a mechanical motion in response to a differential pressure between the first and second zones and generating electricity in response to the mechanical motion.
    Type: Application
    Filed: December 31, 2009
    Publication date: June 30, 2011
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Ives D. Loretz, Gary L. Rytlewski
  • Publication number: 20110132618
    Abstract: A technique facilitates control over a multi-position well tool. A hydraulic control module may be engaged with a multi-position well tool for controlling actuation of the multi-position well tool through a plurality of actuation positions. The multi-position well tool is moved through the plurality of actuation positions by applying pressurized fluid through a first control line. A metering piston is uniquely arranged within the hydraulic control module to control actuation of the multi-position well tool from an initial actuation position through a plurality of incremental actuation positions. Additionally, a single pressurization of actuation fluid delivered through a second control line may be used to return the multi-position well tool back to the initial actuation position from any incremental position.
    Type: Application
    Filed: February 10, 2010
    Publication date: June 9, 2011
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventor: Tyler D. Panian
  • Patent number: 7934559
    Abstract: A circulating sub is run in with the circulating port closed. A dart blocks a central passage and moves two concentric pistons in tandem to open the circulation port while retaining the dart. The outer piston shoulders out in the circulation port open position. A second dart lands on the first and with applied pressure moves the inner piston relative to the shouldered outer piston to close the circulation port and only then discharge both darts. Subs can be used in tandem as long as higher located subs accept larger darts than lower subs and preferably the two darts for each sub are the same size. The ejected darts can be used to pressure actuate a downhole tool like a packer.
    Type: Grant
    Filed: February 12, 2007
    Date of Patent: May 3, 2011
    Assignee: Baker Hughes Incorporated
    Inventors: Lisa L. Posevina, Gregory L. Hern
  • Patent number: 7857052
    Abstract: Apparatus and methods are provided for a cementing operation for use with a drilling with casing application. In one embodiment, an apparatus is provided for stage cementing using a full opening stage tool. In another embodiment, an apparatus is provided for reverse cementing of the casing.
    Type: Grant
    Filed: May 11, 2007
    Date of Patent: December 28, 2010
    Assignee: Weatherford/Lamb, Inc.
    Inventors: Richard Lee Giroux, Steven M. Rosenberg
  • Publication number: 20100270034
    Abstract: System and method for circulating fluid within a well bore. A circulation sub configured with communication elements on its ends to link the sub to a downhole communication network. A slideable piston in the sub isolates or exposes an outer port on the sub to an inner fluid flow along the sub depending on a signal transmitted along the communication network. Methods for activating the circulation sub via signals transmitted along the downhole communication network.
    Type: Application
    Filed: November 20, 2008
    Publication date: October 28, 2010
    Applicant: NATIONAL OILWELL VARCO, L.P.
    Inventor: Jeffery Ronald Clausen
  • Publication number: 20100252276
    Abstract: A downhole circulation sub or valve (105) includes a tubular housing with an outer port (140) and a valve piston (170) slidably disposed in the housing. A primary fluid flow path (130) extends through an inner flow bore of the housing and valve piston. In a first position, the valve piston isolates the outer port to prevent fluid communication between the inner flow bore and a well bore annulus. In a second position, the valve piston is moved to obstruct the inner flow bore and expose the outer port to the inner flow bore and allow fluid communication between the inner flow bore and the well bore annulus. An indexing mechanism (165) is coupled between the housing and the valve piston to guide the valve piston between the first and second positions. In some embodiments, the indexing mechanism includes a rotatable component (175).
    Type: Application
    Filed: November 19, 2008
    Publication date: October 7, 2010
    Applicant: NATIONAL OILWELL VARCO, L.P.
    Inventors: Jeffery Ronald Clausen, Nicholas Ryan Marchand
  • Patent number: 7661478
    Abstract: A downhole tool can perform a series of operations with balls of the same size where movement caused by pressuring up on the first ball positions the next seat to accept another ball just like it. In a preferred embodiment a circulation sub is run in with a port closed and a first seat comprising of collets pushed together and preferably lined with a sleeve are in position to accept a first ball to perform a downhole operation and thereafter pass the ball and open the port. The act of opening the port gives support, by reducing their dimension, to the next assembly of collets also preferably lined with a sleeve so that they are energized to accept the same size ball. Pressuring up on the second ball can shift another sleeve to close the circulation port. The tool is modular and more than one module can be deployed in a given bottom hole assembly.
    Type: Grant
    Filed: October 19, 2006
    Date of Patent: February 16, 2010
    Assignee: Baker Hughes Incorporated
    Inventors: Larry T. Palmer, John M. Sprott
  • Publication number: 20090084555
    Abstract: An activating mechanism for controlling the operation of a downhole tool in a drill string and which is intended to be housed in a portion of the drill string upstream of the downhole tool, in which: the activating mechanism has a first mode in which it allows through-flow of drilling fluid to the downhole tool and a second mode in which through-flow of fluid is blocked; and the activating mechanism has a number of through-flow ports permitting through-flow of drilling fluid in said first mode of the mechanism and which are capable of being blocked by launching a number of flow blocking activator balls down the drill string and which each are of such size and shape that they can block access to said through-flow ports in order to activate the mechanism to the second mode and thereby adjust the downhole tool from one mode of operation to another.
    Type: Application
    Filed: June 9, 2006
    Publication date: April 2, 2009
    Inventor: Paul Bernard Lee
  • Publication number: 20090000782
    Abstract: The present invention relates to a cementing valve (1) for conducting cementing operations in a wellbore comprising a casing (2), wherein the cementing valve (1) comprises an inner sliding sleeve (3) which in a closed position covers a number of openings (4) through an outer pipe (5) surrounding the inner sliding sleeve (3), and in an open position uncovers said openings (4), the sliding sleeve (3) comprising an actuating means (6) requiring a predetermined force to be actuated from both the closed position to the open position and vice versa, engaging means (22) being arranged on the inside of the sliding sleeve (3) for being engaged by a well running tool comprising corresponding gripping means (23).
    Type: Application
    Filed: January 10, 2007
    Publication date: January 1, 2009
    Inventor: Sven Revheim
  • Publication number: 20080314599
    Abstract: A control system for a subsurface safety valve features a control line from the surface leading to one side of an operating piston. The operating piston is exposed to tubing pressure and is in pressure balance from tubing pressure. The opposite end of the operating piston is exposed to a chamber in the housing of the subsurface safety valve and that chamber is open through a port to the surrounding annulus. The operating piston is coupled to the flow tube and a power spring so that pressure in the control line shifts the operating piston and the flow tube against the power spring to rotate the flapper open. Provisions for fail closed mode if certain seals fail are also made though a passage extending from between seals near the upper end of the operating piston to the chamber open to the annulus.
    Type: Application
    Filed: June 21, 2007
    Publication date: December 25, 2008
    Inventors: Darren E. Bane, David Z. Anderson
  • Patent number: 7347288
    Abstract: A by-pass tool for incorporation in a drillstring is adjustable between an inactive mode in which it allows fluid flow lengthwise of the drillstring during normal drilling operation, and an active by-pass mode when drilling is to be interrupted. The tool includes an outer casing, an axially displaceable sleeve within the casing, a valve seat associated with the sleeve and arranged to receive an activating ball, and by-pass port means in the casing. The valve seat receives the activating ball when the ball is launched from the surface and down the drillstring. The valve seat displaces the sleeve axially to adjust the tool from the inactive mode to the active by-pass mode. The by-pass port means allows a locking ball to partially block the port means and thereby initiate flushing-out of any drillstring fluid debris above the valve seat via the port means.
    Type: Grant
    Filed: September 1, 2003
    Date of Patent: March 25, 2008
    Inventor: Paul Bernard Lee
  • Patent number: 7108067
    Abstract: A tubing string assembly for fluid treatment of a wellbore includes substantially pressure holding closures spaced along the tubing string, which each close at least one port through the tubing string wall. The closures are openable by a sleeve drivable through the tubing string inner bore.
    Type: Grant
    Filed: August 19, 2003
    Date of Patent: September 19, 2006
    Assignee: Packers Plus Energy Services Inc.
    Inventors: Daniel Jon Themig, Jim Fehr
  • Patent number: 6923255
    Abstract: A by-pass tool to be incorporated in a drill string, in combination with an activating ball assembly operative to adjust the tool between an activated mode and a de-activated mode. The tool has a valve seat engageable by the activating ball assembly to move its sleeve to a by-pass mode which diverts drilling mud from flowing through the housing to a by-pass flow through the by-pass port. The activating ball assembly has a deformable ball of a size sufficient to engage and to be held captive by the salve seat and a weight attached to the ball and operative to assist in movement of the assembly under the action of gravity to engage the ball with the valve seat. The weight has smaller transverse dimensions that the ball so that it moves downwardly through the valve seat and pulls the ball into engagement with the valve seat.
    Type: Grant
    Filed: August 2, 2001
    Date of Patent: August 2, 2005
    Inventor: Paul Bernard Lee
  • Publication number: 20040007359
    Abstract: A float apparatus for use in a casing string. The float apparatus includes an outer case having a check valve positioned therein. A body portion which may be comprised of high compressive strength cement affixes the check valve to the outer case. The check valve includes a valve body and a valve element. The valve body defines a valve seat and the valve element is deformable so that it will conform to the shape of the valve seat and seal against flow in the casing.
    Type: Application
    Filed: July 11, 2002
    Publication date: January 15, 2004
    Inventors: Michael D. Stevens, Earl D. Webb, Aimee K. Greening
  • Patent number: 6651743
    Abstract: A small diameter stage cementer assembly 10 and a hydraulically operated packer collar stage cementer 110, including a cementer housing 12 for interconnection with a casing string 14 positionable in a slim-hole wellbore for a cementing operation. The cementer housing 12 including a seat 11 for receiving a lower, drillable portion 335 of an opening sleeve assembly 135 after the upper drillable portion 235 of the opening sleeve assembly 135 has been drilled out. The lower, drillable portion 335 wedges into engagement with the seat 11 to prevent rotation of the drillable portion 335 during drill-out, such that the lower portion 335 may be drilled up using a small diameter bit and drill string, and accommodating a reduced weight on bit. The packer collar embodiment includes a hydraulically actuatable packer 70.
    Type: Grant
    Filed: May 24, 2001
    Date of Patent: November 25, 2003
    Assignee: Halliburton Energy Services, Inc.
    Inventor: David D. Szarka
  • Patent number: 6634423
    Abstract: A lifting top drive sub sea staging cement head in which cement slurry flows from outside into its central bore, thru a rotating swivel connection. The cement head has a rotatably indexable reservoir cylinder with multiple cells which may be loaded with balls, and/or darts, and/or staging bombs. One first cell is kept open for circulation. The cylinder is rotatably aligned, at will to the flow path, so that the staging elements may be washed down the drill string. In addition, the cement head is hydraulically remotely controlled such that no operators protrude from the smooth body, yet the remote system may be manually over-ridden.
    Type: Grant
    Filed: January 16, 2002
    Date of Patent: October 21, 2003
    Inventors: Norman B. Giebeler, James F. Giebeler
  • Patent number: 6622798
    Abstract: A method and apparatus for maintaining the fluid column in an annulus are provided. The fluid column support, or fluid column seal is disposed about a second casing being lowered into a well through a first casing already cemented in the well. The fluid column support includes a seal connected to the second casing that engages the first casing as it is lowered therethrough. The seal will allow flow in an upward direction but prevents downward flow. The seal will support, or maintain a fluid column in the annulus between the first and second casing in the event that the fluid level below the seal drops for any reason, such as lost circulation or the failure of a buoyancy chamber in the second casing. The fluid seal, in conjunction with stage tools, provides hydrostatic pressure in the well to maintain proper fluid placement therein.
    Type: Grant
    Filed: May 8, 2002
    Date of Patent: September 23, 2003
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Henry E. Rogers, Harold O. Treece, Grant L. Hartman
  • Publication number: 20030116320
    Abstract: An apparatus and method for cementing a casing string in a wellbore. A self-filling tubular cementing collar connected to the lower end of a casing string is provided with one-way flow valving that allows well fluid to enter and self-fill the casing string as it is lowered into the wellbore and automatically prohibits reverse fluid flow from the collar when washing or cementing during forward circulation through the collar. The one-way valving is carried by an axially movable support that can be shifted by a cementing plug moved by pump pressure to permanently seal the entry flow passage after the casing sting is properly positioned in the wellbore.
    Type: Application
    Filed: December 20, 2001
    Publication date: June 26, 2003
    Inventors: David D. Szarka, Henry E. Rogers
  • Patent number: 6464008
    Abstract: An apparatus and method for the completion of wells through a production tube includes a tool body having cement flow ports and pressure displaced port closure elements. A perforated mandrel tube concentrically aligned within the production tube is secured to said tool body at its upper end. Concentrically within the mandrel tube is a dart transport tube. The dart transport tube is releasably secured to the tool body by a set of locking dogs. A first dart plug is placed in the production tubing bore at the well surface to be pumped or allowed to gravitate onto a closure seat in the lower end of the of the transport tube. This seat closure allows the production tubing to be pressurized for setting well annulus packers and opening of a cement port closure sleeve. After the production tube has been set by cement pumped down the production tubing bore and through the cement flow port, a second dart plug is positioned atop the cement column in the production tube.
    Type: Grant
    Filed: April 25, 2001
    Date of Patent: October 15, 2002
    Assignee: Baker Hughes Incorporated
    Inventors: Jim Roddy, Ray Vincent, Martin P. Coronado, Rocky Turley
  • Patent number: 6401822
    Abstract: A check valve assembly for the bottom of a casing string with increased open area is provided. Multiple check valves are provided for assurance of ultimate closure. Bypass flow paths are available during run in that increase the normal available open area from about 3 square inches to a range of about 10 square inches and even higher. Components freely float during run in to provide the greater open area and are subsequently repositioned with known techniques of dropping a ball and pressurization when the casing has reached the desired depth.
    Type: Grant
    Filed: June 23, 2000
    Date of Patent: June 11, 2002
    Assignee: Baker Hughes Incorporated
    Inventor: John L. Baugh
  • Patent number: 6354371
    Abstract: A jet pump assembly 10 for use in a subterranean wellbore 82 to lift produced fluids 72 to the surface, comprising a fixed type jet pump assembly 10 including a retrievable insert assembly 30 for retrieving substantially all working components of the jet pump assembly 10 which may be subject to wear or size change, including retrieving the standing valve assembly in the production intake section 50, and having a power section 40 which is reversible such that the same components may be used for operating the jet pump assembly 10 in “normal” circulation or “reverse” circulation. Included is an embodiment of a jet pump assembly 10 providing at least one pressure sensor 90 and at least one temperature sensor 92 built into the through bore of the retrievable insert section 30 for monitoring fluid pressure and temperature in the through bore of the jet pump assembly 10 and thereby improving operational efficiency of the jet pump assembly 10.
    Type: Grant
    Filed: February 4, 2000
    Date of Patent: March 12, 2002
    Inventor: Alton A. O'Blanc
  • Patent number: 6311771
    Abstract: An apparatus for launching at least two plugs, said apparatus comprising a mandrel (2), a lower plug (22) and an upper plug (21) releasably disposed with respect to said mandrel (2), wherein said upper plug (21) comprises a body (23) having a flow path (24) therethrough and a cap (25) for blocking fluid flow through said flow path (24) characterized in that said cap (25) is detachable from said body (23) in use if the upper plug (21) is prematurely ejected.
    Type: Grant
    Filed: July 31, 2000
    Date of Patent: November 6, 2001
    Assignee: Weatherford/Lamb, Inc.
    Inventors: Tarald Gudmestad, Frederick Thomas Tilton
  • Patent number: 5782303
    Abstract: An apparatus which includes an external housing (10) and a slotted internal sleeve (26) machined from cylindrical lengths of hollow metal pipe stock, and one or more partially-hollowed-out plug screws (16). This apparatus uses no seals or O-rings. The apparatus is attached between a tubing string of a well and a big bore pump. When activated, the apparatus permits fluids to drain from well tubing. The apparatus has only one moving part and is activated by pulling upward on sucker rods of a well, an action which causes the top of a big bore pump plunger to make contact with the sleeve and move the sleeve upward within the housing. The sleeve is secured inside the housing by one or more partially-hollowed-out plug screws which are sheared when the contact is made, exposing at least one opening. The opening in the sleeve aligns with the hole in the partially-hollowed-out plug screw caused by the shearing.
    Type: Grant
    Filed: September 4, 1996
    Date of Patent: July 21, 1998
    Inventor: J. B. Christian
  • Patent number: 5738171
    Abstract: The present invention provides an improved cementing inflation packer tool and methods of using the tool. The tool includes of a tubular housing having a packer inflating port disposed therein and a packer inflating port opening sleeve slidably disposed within the housing. The opening sleeve is movable between a closed position and an open position by a first cementing plug. An external packer sleeve having a pressurized fluid inflatable packer element attached thereto and a cementing port therein is sealingly disposed over the outer surface of the housing and the packer inflating port. The external packer sleeve provides a passageway from the packer inflating port to the inflatable packer element and check valve means are disposed in the passageway. A fluid rupturable member having a predetermined rupture pressure is sealingly attached over the cementing port.
    Type: Grant
    Filed: January 9, 1997
    Date of Patent: April 14, 1998
    Assignee: Halliburton Company
    Inventor: David D. Szarka