Loose Ball Closure With Limited Reverse Flow Patents (Class 166/329)
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Patent number: 11180966Abstract: A sub with internal components that are configured to shift, wherein a plurality of subs may be run in hole with the same inner diameter.Type: GrantFiled: August 23, 2019Date of Patent: November 23, 2021Assignee: Vertice Oil Tools Inc.Inventors: Mohamed Ibrahim Saraya, Alex Goodwin
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Patent number: 11091982Abstract: Embodiments of an equalizing device for use with a safety valve and a safety valve are provided herein. In one embodiment, the equalizing device includes at least a tubular having a central bore extending axially there through, the tubular having a ball seat. The equalizing device may further include a ball positioned proximate the ball seat, the ball configured to move from a first position engaged with the ball seat to a second position disengaged from the ball seat to equalize pressure across the safety valve, and an arced ring positioned radially outside the ball, the arced ring configured to keep the ball engaged with the ball seat when in the first position and maintain the ball radially outside the ball seat when in the second position.Type: GrantFiled: November 21, 2019Date of Patent: August 17, 2021Assignee: Halliburton Energy Services, Inc.Inventors: Jimmie Robert Williamson, Jr., Bharat Bajirao Pawar, Shaun Wen Jie Ng
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Patent number: 10161230Abstract: Embodiments of well plunger systems, assemblies, and apparatuses are described. In an embodiment, the apparatus includes a body having a first open end, a second open end, and a channel extending from the first open end through the body to the second open end, the channel for passing fluid from an oil or gas well. The apparatus may also include a receiver disposed at the first open end, the receiver configured to receive a stopper configured to at least partially seal off the channel, the first open end comprising a retention member receiver configured to receive one or more specially adapted retention members for applying a retention force to the stopper when the stopper is engaged with the receiver.Type: GrantFiled: March 15, 2016Date of Patent: December 25, 2018Assignee: Patriot Artificial Lift, LLCInventors: Robert G. Roycroft, Darrell W. Mitchum
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Patent number: 9856708Abstract: Disclosed herein is a seat assembly for a drill string, the seat assembly having an outer tubular member and a seat disposed therein. The seat has a bore having a central axis. A plurality of cuts extends radially from the bore to an outer perimeter of the seat, the plurality of cuts also extending a distance longitudinally along the length of the central axis. Each of the plurality of cuts is present at an angle oblique to the peripheral circumference of the bore.Type: GrantFiled: October 27, 2014Date of Patent: January 2, 2018Assignee: HALLIBURTON ENERGY SERVICES, INC.Inventor: Kendall Lee Pacey
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Patent number: 9631461Abstract: A well screen assembly includes a tubular base pipe. The base pipe has a sidewall aperture that communicates fluid between an interior central bore of the base pipe and an exterior of the base pipe. A filtration screen is around the base pipe. The filtration screen defines a lateral fluid passage along a axial length of the well screen assembly. A flow control device is coupled to the base pipe and the filtration screen. The flow control devices includes a ring sealing the lateral fluid passage from the central bore. An elongate restrictor passage is in the ring, oriented longitudinally. The elongate restrictor passage is configured to communicate fluid between the lateral fluid passage and the central bore. The restrictor passage includes an internal, square edged orifice defined by a fixed, annular protrusion. The annular protrusion extends inwardly from an interior surface of the restrictor passage.Type: GrantFiled: February 15, 2013Date of Patent: April 25, 2017Assignee: Halliburton Energy Services, Inc.Inventors: Jean-Marc Lopez, Luke William Holderman, Stephen Michael Greci
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Patent number: 8925634Abstract: A flow restrictor device for production tubing comprising an obstructing member. The flow restrictor is arranged for movement between a first position where the obstructing member is located so as to form a seal with an edge of an aperture formed in a wall of said production tubing and is arranged to prevent fluid flow through said aperture, and a second position where the obstructing member is located so that the aperture is unobstructed. The flow restrictor further comprises a retaining arrangement for restricting possible locations of said obstructing member to said first position, second position and positions therebetween. The aperture allows fluid communication between the exterior and interior of the production tubing.Type: GrantFiled: July 8, 2010Date of Patent: January 6, 2015Assignee: FloTech Holdings LimitedInventors: Sam Simonian, Giovanni Salerno, Benn Voll
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Patent number: 8919432Abstract: An apparatus, system and method for reducing gas intake in horizontal submersible pump assemblies are described. A horizontal electric submersible pump (ESP) system for pumping gaseous fluid comprises a multi-stage centrifugal pump, an electric motor operatively coupled to the centrifugal pump, and an intake section upstream of the pump comprising a tapered core further comprising a sloped outer surface extending between a downstream side and an upstream side, a first intake port for the intake of well fluid in an ESP assembly, the first intake port located on a top portion of the tapered core and proximate to the downstream side, a gravity-actuated closing member moveably attached on the sloped outer surface, wherein the gravity-actuated closing member closes the first intake port, and a second intake port located on a bottom portion of the tapered core, the second intake port open to the well fluid.Type: GrantFiled: June 12, 2014Date of Patent: December 30, 2014Assignee: Summit ESP, LLCInventors: Steven Keith Tetzlaff, Lance Travis Robinson, Wesley John Nowitzki
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Patent number: 8905125Abstract: An abrasive perforator tool with a bypass flow channel. The tool comprises a tubular body or housing with perforating nozzles in the sidewall. A sleeve assembly inside the central bore of the tool provides for sequential deployment of first and second sleeves. Prior to deployment of the sleeve assembly, pressurized fluid can be passed through the tool to operate other tools beneath the perforator in the bottom hole assembly. Deployment of the first sleeve diverts pressurized fluid through the nozzles for perforating. Deployment of the second sleeve redirects the pressurized flow through the outlet of the tool to resume operation of other tools below the perforator.Type: GrantFiled: May 2, 2013Date of Patent: December 9, 2014Assignee: Thru Tubing Solutions, Inc.Inventors: Michael L. Connell, Robert J. Farkas
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Patent number: 8851180Abstract: A flow control system for use in a subterranean well can include a flow chamber through which a fluid composition flows, and a plug which is released in response to an increase in a ratio of undesired fluid to desired fluid in the fluid composition. Another flow control system can include a flow chamber through which a fluid composition flows, a plug, and a structure which supports the plug, but which releases the plug in response to degrading of the structure by the fluid composition. Yet another flow control system can include a flow chamber through which a fluid composition flows, and a plug which is released in response to an increase in a velocity of the fluid composition in the flow chamber.Type: GrantFiled: September 14, 2010Date of Patent: October 7, 2014Assignee: Halliburton Energy Services, Inc.Inventors: Jason D. Dykstra, John C. Gano
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Patent number: 8813849Abstract: An oil well control device automatically shuts in a well responsive to the removal of a work string (or other removable structure—ball retarding structure) from the device. The device is placed in the well as a section of the well casing. The device provides a pair of bores, one that aligns with the well bore or well casing, the other being a branch flow line containing a ball structure that will close the well if the drill pipe or drill string is removed. While conducting normal well activity (e.g. drilling, work over or the like) the ball retarder (e.g. work string) prevents entry of the ball structure into the main flow channel.Type: GrantFiled: June 16, 2011Date of Patent: August 26, 2014Inventor: Raymond C. Davis
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Publication number: 20140041876Abstract: A downhole tool is provided that selectively opens and closes an axial/lateral bore of a tubular string positioned in a wellbore used to produce hydrocarbons or other fluids. When integrated into a tubular string, the downhole tool allows individual producing zones within a wellbore to be isolated between stimulation stages while simultaneously allowing a selected formation to be accessed. The downhole tools and methods can be used in vertical or directional wells, and additionally in cased or open-hole wellbores.Type: ApplicationFiled: October 16, 2013Publication date: February 13, 2014Applicant: Colorado School of MinesInventors: William Winfrid Fleckenstein, Todd Lance Flaska
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Patent number: 8534361Abstract: A downhole valve that operates on turning of a member having a passage through it with a control system also features a passage from above an uphole seat for the member which communicates to the isolated passage within the member when the valve is closed. The passage features a check valve assembly that preferably has redundant sealing features and filters to prevent debris entry. Pressure applied from above the closed member gets through the check valve assembly to equalize the higher pressure below the ball with the pressure raised in the ball from pressure application at the surface. Removal of the applied pressure reseats the check valve or valves to allow the hydraulic system to rotate the member while the member is no longer subject to a high differential pressure.Type: GrantFiled: October 7, 2009Date of Patent: September 17, 2013Assignee: Baker Hughes IncorporatedInventors: Kevin R. Plunkett, Mark S. Megill
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Patent number: 8474552Abstract: Piston steering devices and methods for use of piston devices. One aspect as disclosed herein provides a ball piston device including: a sleeve in fluid communication with a fluid source and a ball received within the sleeve. The ball is movable within the sleeve from a recessed position and an extended position.Type: GrantFiled: January 15, 2012Date of Patent: July 2, 2013Assignee: Schlumberger Technology CorporationInventors: Fabio de Paula Neves, Alex Slocum, Ian David Thomas
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Patent number: 8448700Abstract: An abrasive perforator tool with a bypass flow channel. The tool comprises a tubular body or housing with perforating nozzles in the sidewall. A sleeve assembly inside the central bore of the tool provides for sequential deployment of first and second sleeves. Prior to deployment of the sleeve assembly, pressurized fluid can be passed through the tool to operate other tools beneath the perforator in the bottom hole assembly. Deployment of the first sleeve diverts pressurized fluid through the nozzles for perforating. Deployment of the second sleeve redirects the pressurized flow through the outlet of the tool to resume operation of other tools below the perforator.Type: GrantFiled: August 3, 2010Date of Patent: May 28, 2013Assignee: Thru Tubing Solutions, Inc.Inventors: Michael L. Connell, Robert J. Farkas
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Patent number: 8403052Abstract: A flow control screen having a fluid flow path between the interior of a base pipe and a filter medium. A valve assembly, including a piston body, a valve plug and a ball retainer having an opening, is disposed within the fluid flow path. The piston body has an internal seat and a collet assembly that is radially outwardly constrained by the ball retainer in a first operating position to retain the valve plug therein and radially outwardly unconstrained by the ball retainer in a second operating position. Reverse flow is initially prevented as internal differential pressure seats the valve plug on the internal seat and causes the piston body to shift to the second operating position upon reaching a predetermined threshold. Thereafter, external differential pressure causes the valve plug to be expelled from the valve assembly through the opening of the ball retainer, thereby no longer preventing reverse flow.Type: GrantFiled: March 11, 2011Date of Patent: March 26, 2013Assignee: Halliburton Energy Services, Inc.Inventor: Jan Veit
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Patent number: 8356670Abstract: A method of controlling fluid flow through a hollow body, uses a ball seat assembly (12) comprising a hollow body (14) defining a bore (16) and a ball seat (18) mounted said bore, the ball seat being moveable relative to the bore between an extended position in which the seat defines a restriction to passage of a ball (20) along the bore, and a retracted position spaced axially along the bore from the extended position and in which position passage of the ball along the bore is permitted. A subsequent reduction in the fluid pressure force acting on the ball seat facilitates movement of the seat from the extended position shown in the upper half of FIG. 1, to the retracted position shown in the lower half of the Figure, to permit passage of the ball through the bore to thereby re-open fluid flow through the bore.Type: GrantFiled: March 14, 2008Date of Patent: January 22, 2013Assignee: Specialised Petroleum Services Group LimitedInventor: George Telfer
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Patent number: 8347965Abstract: 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: GrantFiled: December 23, 2009Date of Patent: January 8, 2013Assignee: Sanjel CorporationInventors: Jeffrey W. Spence, James K. Gray, Bailey T. Epp, Alberto Martinez, Liguo Zhou
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Publication number: 20120318507Abstract: A method and apparatus for completing a horizontal hydrocarbon well includes cementing a casing string in the well and creating passages through the casing string adjacent float equipment near the casing toe by slowly dissolving a plug with completion fluid used to pump cement into an annulus between the casing string and bore hole. By the time the cement sets up, the plug dissolves leaving passages in the casing string through which a first frac job may be pumped or which allows pumping perforating equipment into the horizontal leg without requiring a coiled tubing run. The technique can also be used in vertical wells to save a perforating gun run.Type: ApplicationFiled: June 17, 2011Publication date: December 20, 2012Inventor: W. Lynn Frazier
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Patent number: 8291988Abstract: 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: GrantFiled: August 10, 2009Date of Patent: October 23, 2012Assignee: Baker Hughes IncorporatedInventor: James G. King
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Publication number: 20120227979Abstract: A flow restrictor device (10) for production tubing comprises: an obstructing member (18) arranged for movement between a first position where said obstructing member is located so as to form a seal with an edge of an aperture (14) formed in a wall of said production tubing and is arranged prevent fluid flow through said aperture, and a second position where said obstructing member is located so that the aperture is unobstructed; and a retaining arrangement (16) for restricting possible locations of said obstructing member to said first position, second position and positions therebetween.Type: ApplicationFiled: July 8, 2010Publication date: September 13, 2012Inventors: Sam Simonian, Giovanni Salerno, Benn Voll
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Publication number: 20120227973Abstract: A wellbore tool which includes a housing having an axial flowbore and a piston sleeve movably disposed within the flowbore. The tool is moveable between first and second operating positions by an actuation mechanism having a piston with a seat having a plurality of separate arcuate segments. The tool can be moved between first and second operating positions with the use of actuating plugs of different sizes that can be landed upon the seat.Type: ApplicationFiled: May 11, 2012Publication date: September 13, 2012Applicant: Baker Hughes IncorporatedInventors: Daniel R. Hart, Gregory L. Hern, Christopher W. Guidry, Robert S. O'Brien
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Patent number: 8226383Abstract: An apparatus for pumping fluids from a geologic formation comprising a submersible motor having a motor shaft, wherein said submersible motor is reversible and has a plurality of speed settings; a pump housing connected to said submersible motor by a motor mount, wherein said pump housing has a lubricant contained therein; and a tube connected to said pump housing having a pump barrel disposed therein, wherein said pump barrel has an upper barrel connector that is connected to a standing valve; whereby a reciprocating motion by a ball nut applies said lubricant on a ball screw, and associated method of use.Type: GrantFiled: September 7, 2007Date of Patent: July 24, 2012Inventors: James Henry, David Henry, Milt Skillman
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Patent number: 8157024Abstract: Embodiments include ball piston steering devices and methods for use of ball piston devices. In one aspect a ball piston steering device includes a sleeve in fluid communication with a fluid source and a ball received within the sleeve. The ball is movable within the sleeve between a recessed position and an extended position.Type: GrantFiled: December 4, 2008Date of Patent: April 17, 2012Assignee: Schlumberger Technology CorporationInventors: Fabio de Paula Neves, Alexander Slocum, Ian David Thomas
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Publication number: 20120061094Abstract: An apparatus for restricting fluid flow includes: a ball receiving element disposed in a fluid conduit and configured to receive a ball that has been advanced through the fluid conduit and at least partially restrict fluid flow, the fluid conduit having a longitudinal axis; and at least one feature disposed at the fluid conduit and configured to at least one of reduce a rate of deceleration of the ball due to actuation of the apparatus and reduce pressure waves generated by an impact between the ball and the ball receiving element.Type: ApplicationFiled: September 13, 2010Publication date: March 15, 2012Applicant: BAKER HUGHES INCORPORATEDInventors: Mohan Soni, Gaurav Agrawal
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Publication number: 20110315390Abstract: A tool for use in a wellbore which includes a housing having an axial flow bore and a piston sleeve moveably disposed within the flow bore. The tool is moveable between first and second operating positions by an actuation mechanism having a piston with a ball seat having a partially annular shape with an outer base and a plurality of retaining segments projecting radially inwardly therefrom. The tool can be moved between first and second operating positions with the use of actuating balls of different sizes that can be landed upon the ball seat.Type: ApplicationFiled: August 23, 2010Publication date: December 29, 2011Applicant: Baker Hughes IncorporatedInventors: Jeremy J. Guillory, Daniel R. Hart, Gregory L. Hern
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Publication number: 20110315389Abstract: A tool for use in a wellbore which includes a housing having an axial flow bore and a piston sleeve moveably disposed within the flow bore. The tool is moveable between first and second operating positions by an actuation mechanism having a piston with a ball seat. The tool can be moved between first and second operating positions with the use of actuating balls of different sizes that can be landed upon the ball seat.Type: ApplicationFiled: June 29, 2010Publication date: December 29, 2011Applicant: Baker Hughes IncorporatedInventors: James Alan Crider, Gregory L. Hern, Charles W. Pleasants
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Publication number: 20110180268Abstract: An openable port includes a body, a sleeve movable relative to the body, and a plug disposed at the sleeve that is extrudable through the sleeve. And the sleeve is substantially occluded to flow therethrough by the plug prior to extrusion of the plug and is open to flow therethrough after extrusion of the plug.Type: ApplicationFiled: January 26, 2010Publication date: July 28, 2011Applicant: BAKER HUGHES INCORPORATEDInventor: Richard Y. Xu
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Publication number: 20110030976Abstract: 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: ApplicationFiled: August 10, 2009Publication date: February 10, 2011Applicant: BAKER HUGHES INCORPORATEDInventor: James G. King
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Publication number: 20110030964Abstract: A subsea control system may have a control module having a plurality of dual ball valve assemblies. Each dual ball valve assembly may be connected to a supply line, a vent line, and a function line connected to a subsea device for controlling the subsea device.Type: ApplicationFiled: August 5, 2009Publication date: February 10, 2011Inventor: Alfred Moore Williams
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Patent number: 7775284Abstract: A flow control apparatus (800) includes a tubular member (818) having a plurality of openings (820, 822, 824, 826) that allow fluid flow between an exterior and an interior flow path (828) of the tubular member (818) and a multi-stage flow restricting section (804) operably positioned in a fluid flow path between a fluid source disposed exteriorly of the tubular member (818) and the interior flow path (828). The flow restricting section (804) including a plurality of flow restricting devices (838, 844, 850) each operable to create a pressure drop. Actuatable devices (830, 832, 834, 836) operably associated with the openings (820, 822, 824, 826) are sequentially actuatable to allow fluid flow through the associated openings (820, 822, 824, 826), thereby sequentially reducing the pressure drop experienced by fluids flowing from the fluid source to the interior flow path (828).Type: GrantFiled: September 28, 2007Date of Patent: August 17, 2010Assignee: Halliburton Energy Services, Inc.Inventors: William Mark Richards, Jean Marc Lopez
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Patent number: 7770652Abstract: A ball release tool includes: a tubular body including an upper end, a lower end, an inner bore defined by an inner wall surface and extending from the upper end to the lower end; a pocket in the inner wall; a slidable sleeve carried by the tubular body and including a throughbore positioned in line with the tubular body inner bore, the slidable sleeve moveable along the inner bore from a first position substantially covering the pocket to a second position exposing the recess to the inner bore; a check valve in driving communication with the sleeve, the check valve selected to permit flow of fluid through the inner bore from the upper end to the lower end, but to act against flow from the lower end to the upper end and, when resisting flow, operable to drive the sleeve upwardly toward the second position, and a ball positionable in the pocket to be either held in the pocket behind the sleeve or released into the inner bore when the sleeve exposes the pocket.Type: GrantFiled: March 10, 2008Date of Patent: August 10, 2010Assignee: BBJ Tools Inc.Inventor: Robert Barnett
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Publication number: 20100132954Abstract: A method of controlling fluid flow through a hollow body, uses a ball seat assembly (12) comprising a hollow body (14) defining a bore (16) and a ball seat (18) mounted said bore, the ball seat being moveable relative to the bore between an extended position in which the seat defines a restriction to passage of a ball (20) along the bore, and a retracted position spaced axially along the bore from the extended position and in which position passage of the ball along the bore is permitted. A subsequent reduction in the fluid pressure force acting on the ball seat facilitates movement of the seat from the extended position shown in the upper half of FIG. 1, to the retracted position shown in the lower half of the Figure, to permit passage of the ball through the bore to thereby re-open fluid flow through the bore.Type: ApplicationFiled: March 14, 2008Publication date: June 3, 2010Applicant: SPECIALISED PETROLEUM SERVICES GROUP LIMITEDInventor: George Telfer
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Publication number: 20090084556Abstract: A flow control apparatus (800) includes a tubular member (818) having a plurality of openings (820, 822, 824, 826) that allow fluid flow between an exterior and an interior flow path (828) of the tubular member (818) and a multi-stage flow restricting section (804) operably positioned in a fluid flow path between a fluid source disposed exteriorly of the tubular member (818) and the interior flow path (828). The flow restricting section (804) including a plurality of flow restricting devices (838, 844, 850) each operable to create a pressure drop. Actuatable devices (830, 832, 834, 836) operably associated with the openings (820, 822, 824, 826) are sequentially actuatable to allow fluid flow through the associated openings (820, 822, 824, 826), thereby sequentially reducing the pressure drop experienced by fluids flowing from the fluid source to the interior flow path (828).Type: ApplicationFiled: September 28, 2007Publication date: April 2, 2009Inventors: William Mark Richards, Jean Marc Lopez
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Publication number: 20090044946Abstract: Apparatuses for closing a well conduit comprise a housing having a longitudinal bore and a seat disposed within the bore. A chamber is disposed within the housing and includes a plug element support member, such as ram or piston, operatively associated within the chamber. The plug element support member has a retracted position and an extended position. A passageway is in fluid communication with the bore and the chamber. A plug element such as a ball or drop plug, is adapted to be disposed into the bore and landed on the seat to restrict fluid flow through the bore and the well conduit. Landing the plug element causes and allowing fluid pressure to build causes the plug element support member to move from the retracted position to the extended position to provide support to the plug element landed on the seat.Type: ApplicationFiled: August 13, 2007Publication date: February 19, 2009Inventors: Thomas Schasteen, James G. King
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Publication number: 20090044948Abstract: Apparatuses for restricting fluid flow through a well conduit comprise a housing having a longitudinal bore and a seat disposed within the bore. The seat has a first position when the apparatus is in the run-in position and a second position when the apparatus is in the set position. A plug element support member has a retracted position when the apparatus is in the run-in position and an extended position when the apparatus is in the set position. A plug element adapted to be disposed into the bore and landed on the seat to restrict fluid flow through the bore and the well conduit is used to move the plug element support member from the retracted position to the extended position, thereby providing support to the plug member landed on the seat.Type: ApplicationFiled: August 13, 2007Publication date: February 19, 2009Inventors: Marcus A. Avant, Charles C. Johnson, James G. King, David B. Ruddock
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Patent number: 7201232Abstract: An isolation string having an upper packer and an isolation pipe in mechanical communication with the upper packer, the isolation pipe comprises an operable valve and an object activated valve. An object holding service tool is adapted to release an object to activate the object activated valve. A method of running-in an isolation string, comprising an operable valve and an object activated valve, with an object holding service tool having an object held therewith; setting the isolation string in the casing adjacent perforations; pressurizing the object to cause a release from the object holding service tool, whereby the object travels to the object activated valve; closing the object activated valve with the released object; and withdrawing the object holding service tool from the well.Type: GrantFiled: November 13, 2003Date of Patent: April 10, 2007Assignee: BJ Services CompanyInventors: Dewayne M. Turner, Donald H. Michel, Marvin Bryce Traweek, Richard J. Ross, Floyd Romaine Bishop, Gregg W. Stout
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Patent number: 7124824Abstract: An isolation string having: an upper packer; and an isolation pipe in mechanical communication with the upper packer, wherein the isolation pipe comprises a pressure activated valve and an object activated valve. A method having: running-in an isolation string on a service tool, wherein the isolation string comprises a pressure activated valve and a object activated valve; setting the isolation string in the casing adjacent perforations in the casing; releasing an object from the service tool, whereby the object travels to the object activated valve; closing the object activated valve with the released object; and withdrawing the service tool from the well.Type: GrantFiled: February 12, 2003Date of Patent: October 24, 2006Assignee: BJ Services Company, U.S.A.Inventors: Dewayne Turner, Donald H. Michel, Marvin Bryce Traweek, IV, Richard J. Ross, Floyd Romaine Bishop
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Patent number: 7032666Abstract: A gravel packing method and apparatus so that when setting the packer, a ball is dropped to a seat that is isolated from the effects of formation pressures when trying to set the packer. This is accomplished by isolation of the gravel pack outlet port when setting the packer and locating the ball seat in a position where the effects of formation pressure are irrelevant. Additionally, by positioning the evacuation ports above a seal bore in the screen extension during circulation to deposit gravel and further putting check valves in the evacuation ports, the evacuation step after circulation can be accomplished without having to reposition the crossover.Type: GrantFiled: July 31, 2003Date of Patent: April 25, 2006Assignee: Baker Hughes IncorporatedInventor: Thomas G. Corbett
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Publication number: 20030094283Abstract: The proposed device for operation of free flowing and gas lift oil wells relates to production of gas-liquid mixtures, and particularly of gasified oil, and can be used in wells if either the productive formation flows naturally or when compressed gas is artificially supplied to lift the liquid (i.e. gas lift production) and can be made in two embodiments.Type: ApplicationFiled: October 4, 2002Publication date: May 22, 2003Inventors: Vladimir Ivanovich Ivannikov, Ivan Vladimirovich Ivannikov
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Patent number: 6148923Abstract: An auto-cycling plunger and method for lifting out condensate and fluid that accumulate and retard production in oil and gas wells. The auto-cycling plunger comprises a tube that defines an inner chamber, one or more flapper sealing rings mounted on the tube and a detachable valve member positioned at one end of the tube. During the method, the auto-cycling plunger free falls down the production tubing string with the detachable valve accelerating faster than the tube. The detachable valve hits the bottom-hole spring first, the tube follows and engages with the detachable valve thereby creating a seal. The liquid collects above auto-cycling plunger and the plunger moves up the production tubing as gas within the well accumulates below it and creates an upward pressure. The auto-cycling plunger repeats it's movement up and down the well without having to shut-in the well thereby continuously removing liquids without stopping production.Type: GrantFiled: December 23, 1998Date of Patent: November 21, 2000Inventor: Dan Casey
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Patent number: 5915478Abstract: An improved standing valve which regulates the amount of accumulated fluid in the tubing string of an oil and gas well, to an amount that is within the purging capability of the gas-lift method. The present invention provides a hydrostatic standing valve with a floating valve seat which is displaced in response to the weight of an accumulated fluid head. A ball seals against the floating valve seat and floats with it, but the displacement of the ball is limited by a positive stop provided by a rod supported by the standing valve body. When the valve seat displaces beyond that of the ball, as limited by the positive stop, the ball is sealingly disengaged from the valve seat and fluid flows out of the tubing string.Type: GrantFiled: January 28, 1998Date of Patent: June 29, 1999Inventors: Henry F. Brown, Jeffrey J. Brown
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Patent number: 5127482Abstract: A tool head is separably attached to the end of a hollow well drilling string for cutting operations within a well and for detachment of the cutting head from the string without removing the string from the well. The head is attached by a ball clutch structure having a pressure responsive release mechanism responsive to an actuating pressure on the release mechanism to release the cuttiong head and the release mechanism from the string, the release mechanism having an upwardly open passage and a downward flow permitting check valve for passing cutting fluid from the string through the passage to the cutting head. Release is effected by dropping a sealing member down the drill string to close the passage and by an increase in fluid pressure above the sealing member and the release mechanism.Type: GrantFiled: October 25, 1990Date of Patent: July 7, 1992Inventor: Clarence A. Rector, Jr.
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Patent number: 5044444Abstract: An apparatus for effecting chemical treatment of any selected portion of a subterranean well bore comprises a pair of vertically spaced, inflatable packing elements which are run into the well on a fluid conduit, such as continuous tubing. The apparatus permits circulation while being run into the well bore and, when positioned at a desired location, effects the expansion of the two inflatable elements by pressured fluid introduced through the supporting fluid conduit. The applied pressure is trapped within the inflatable elements by axial movement of an inner body assemblage of the apparatus relative to an outer body assemblage, which is opposed by a spring. The relative movement effects the opening of fluid communication between the central fluid conduit and the well bore portion between the inflated packing elements, permitting testing of the sealing effectiveness of the packing elements, and the application of a treatment fluid.Type: GrantFiled: July 5, 1990Date of Patent: September 3, 1991Assignee: Baker Hughes IncorporatedInventor: Martin P. Coronado
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Patent number: 5020600Abstract: An apparatus for effecting chemical treatment of any selected portion of a subterranean well bore comprises a pair of vertically spaced, inflatable packing elements which are run into the well on a fluid conduit, such as continuous tubing. The apparatus permits circulation while being run into the well bore and, when positioned at a desired location, effects the expansion of the two inflatable elements by pressured fluid introduced through the supporting fluid conduit. The applied pressure is trapped within the inflatable elements by axial movement of an inner body assemblage of the apparatus relative to an outer body assemblage, which is opposed by a spring. The relative movement effects the opening of fluid communication between the central fluid conduit and the wall bore portion between the inflated packing elements, permitting testing of the sealing effectiveness of the packing elements, and the application of a treatment fluid.Type: GrantFiled: April 28, 1989Date of Patent: June 4, 1991Assignee: Baker Hughes IncorporatedInventor: Martin P. Coronado
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Patent number: 4887676Abstract: The invention relates to a device for closing, without a surge, one end of a core barrel installed in a mining or oil drilling rig, optionally equipped with a turbine.This device comprises a tubular element in whose bore there is guided a sliding member which provides a passage for the drilling liquid under pressure, this sliding member being movable in the above-mentioned bore under the influence of a variation in the flow of drilling liquid between a first position in which it keeps a closing member such as a ball remote from a seat provided at the above-mentioned end of the core barrel and, when it has engaged in the second section of the bore allows the closing element to be held in the first section of the bore, and a second position in which it allows the closing element to pass from the first section of the bore into the second section thereof and to place itself on the seat of the core barrel when the sliding member returns to its starting position.Type: GrantFiled: April 14, 1988Date of Patent: December 19, 1989Assignee: Diamant Boart Societe AnonymeInventor: Charles P. Hallez
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Patent number: 4877095Abstract: Stopper, for cable passages or conduits, having a first chamber placed in said passage, said chamber comprising at least one bearing surface placed in this passage and adapted to cooperate with a closure element, a second chamber opening into the first chamber, said closure element being housed in said second chamber in a first position of the stopper, and means for moving the closure element in the first chamber to a second position of the stopper, where the cable is withdrawn from the passage, further comprising a separating member, situated between said first chamber and said second chamber, this member being adapted for controlling the movement of the closure element from the second chamber to the first chamber.Type: GrantFiled: June 24, 1988Date of Patent: October 31, 1989Assignee: Institut Francais du PetroleInventor: Christian Wittrisch
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Patent number: 4266605Abstract: A check valve for wireline operations is employed in oil well drilling where a high pressure is encountered in a well. The check valve permits a wireline to extend through the check valve and a ball chamber therein. The ball chamber has a check ball therein that rests between the wireline and a non restrictive flow passage open to the well, so that upon loss of the wireline the fluid or gas tending to escape forces the ball to block the wireline opening.Type: GrantFiled: April 28, 1980Date of Patent: May 12, 1981Inventors: Russel G. LaBorde, Emmett F. Brieger
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Patent number: 4258801Abstract: A dump valve having a valve seat and a valve member is located in a string of drill pipe above a downhole motor. The dump valve connects the inside of the drill string with the annulus and allows drilling mud to flow freely therebetween when drilling mud is not being pumped through the drill string to operate the downhole motor. The valve member is made of a deformable resilient material such as rubber. It is held away from the valve seat by spacers until the pressure drop across the valve member is sufficient to deform the valve member and move it past the spacers into engagement with the valve seat. When the pressure differential is relieved, the valve member will return to its normal, unstressed shape opening the valve.Type: GrantFiled: June 14, 1979Date of Patent: March 31, 1981Assignee: Eastman Whipstock, Inc.Inventor: John B. Poston
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Patent number: 4108203Abstract: A check valve assembly for use in a drill string to prevent reverse flow of drilling fluid through the string while permitting such fluid to be pumped downwardly through the well under normal conditions. The assembly includes: a valve body; a ball valve member, normally located out of the flow path in a side recess; a valve seat located above the valve member and means for controlling the rate of reverse flow of fluid required to move the valve member out of the side recess and against the valve seat.Type: GrantFiled: May 9, 1977Date of Patent: August 22, 1978Assignee: Brown Oil Tools, Inc.Inventor: Cicero C. Brown, deceased