Receptacle Or Part Thereof Left In Well Patents (Class 166/117)
  • Patent number: 9915116
    Abstract: An embodiment may take the form of a method usable with a well including pumping an untethered object into the well to land on a restriction downhole in the well and using the restriction to trigger release of an agent carried by the object into the well. Another embodiment may take the form of an apparatus usable with a well having a solid object adapted to be pumped into the well and an agent to be adapted to be released from the solid object in response to the solid object landing on a restriction in the well.
    Type: Grant
    Filed: February 3, 2016
    Date of Patent: March 13, 2018
    Inventors: Gregoire Jacob, Indranil Roy, Michael Dardis, John Fleming
  • Patent number: 9896269
    Abstract: A method of forming a subterranean gas storage vessel is provided. A wellbore is drilled through the surface of the ground into the ground, and a casing is inserted into the wellbore, the casing having a size such that a wellbore annulus is formed between the outside surface of the casing and the wall of the wellbore. A cement sheath is then formed in the wellbore annulus, and the interior of the casing is sealed to help prevent gas from inadvertently escaping therefrom. The cemented and sealed casing can then be used as a storage vessel to store and dispense gas such as compressed natural gas (CNG).
    Type: Grant
    Filed: May 1, 2015
    Date of Patent: February 20, 2018
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Brett Wade Williams, Paul Joseph Jones, Marcus Allen Duffy
  • Patent number: 9816341
    Abstract: A method can include deploying a plugging device into a well, the plugging device including a body, and an outer material enveloping the body and having a greater flexibility than a material of the body, and conveying the plugging device by fluid flow into engagement with the opening, the body preventing the plugging device from extruding through the opening, and the outer material blocking the fluid flow between the body and the opening. In another method, the plugging device can include at least two bodies, and a washer element connected between the bodies, the washer element being generally disk-shaped and comprising a hole, a line extending through the hole and connected to the bodies on respective opposite sides of the washer element, the washer element preventing the plugging device from being conveyed through the opening, and the washer element blocking the fluid flow through the opening.
    Type: Grant
    Filed: October 18, 2016
    Date of Patent: November 14, 2017
    Assignee: Thru Tubing Solutions, Inc.
    Inventors: Gary P. Funkhouser, Brock W. Watson, Andrew M. Ferguson, Jenna N. Robertson, Roger L. Schultz
  • Patent number: 9784060
    Abstract: A junk catching device (1) for catching junk traveling into a well. The device comprises an outer housing (10) comprising an upper end (10a) and a lower end (10b), a bore (11) provided inside the housing (10), a receiving device (20) provided in the upper end (10a) of the housing (10). The receiving device (20) comprises a receiving opening (21) providing an opening into the bore (11) and a junk guiding device (22) for guiding junk into the bore (11) via the receiving opening (21). The junk guiding device (22) is configured to be provided in a run state, in which the outer diameter of a guiding section (22A) of the junk guiding device (22) is less than or equal to the outer diameter of the housing (10), and in a set state, in which the outer diameter of the guiding section (22A) of the junk guiding device (22) is larger than the outer diameter of the housing (10).
    Type: Grant
    Filed: October 29, 2013
    Date of Patent: October 10, 2017
    Assignee: Interwell Technology AS
    Inventors: Espen Hiorth, Christian Malvik
  • Patent number: 9488028
    Abstract: An actuator and method for setting a subterranean tool uses an externally mounted actuator on a tubular string that is operably engaged to the tool to be actuated. At the desired location for actuation a signal is given to a valve assembly. The opening of the valve releases the pressurized compressible fluid against a floating piston. The piston drives viscous fluid ahead of itself through the now open valve that in turn drives an actuating piston whose movement sets the tool. The triggering mechanism to open the valve can be a variety of methods including an acoustic signal, a vibration signal, a change in magnetic field, or elastic deformation of the tubular wall adjacent the valve assembly.
    Type: Grant
    Filed: January 29, 2014
    Date of Patent: November 8, 2016
    Assignee: Baker Hughes Incorporated
    Inventors: Aubrey C. Mills, Basil J. Joseph, Ammar A. Munshi, Keven O'Connor, Charles W. Pleasants
  • Patent number: 9376878
    Abstract: During the process of drilling for hydrocarbons, there is often the need to set a cementitious material plug in an open hole to allow the process of sidetracking and drilling of a new well bore. The present invention provides an apparatus and method for setting a cementitious material plug in an irregularly shaped and/or over gauge well bore without contamination of the cementitious material by extruding a membrane filled with cementitious material from a membrane delivery device.
    Type: Grant
    Filed: February 12, 2014
    Date of Patent: June 28, 2016
    Inventor: Inger Isaksen
  • Patent number: 9309743
    Abstract: This invention relates to geophysical research techniques, more particularly, to geophysical well logging methods, and may be used to seal near-wellbore formation during logging activities.
    Type: Grant
    Filed: September 18, 2007
    Date of Patent: April 12, 2016
    Inventor: Dean Willberg
  • Patent number: 9016389
    Abstract: A retrofit assembly for functionally replacing a fluid isolation valve disposed in a borehole above a lower completion, including a barrier valve operatively arranged to selectively isolate the lower completion when the fluid isolation valve is open. The barrier valve is transitionable between an open position and a closed position due to engagement with an upper completion string. A packer device is included and operatively arranged to isolate a formation in which the borehole is formed.
    Type: Grant
    Filed: March 29, 2012
    Date of Patent: April 28, 2015
    Assignee: Baker Hughes Incorporated
    Inventors: Raymond A. Frisby, Jeffrey S. Phillips, Roy N. Nelson, Donald Lauderdale
  • Publication number: 20140144616
    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: Application
    Filed: February 4, 2014
    Publication date: May 29, 2014
    Inventor: Stephen M. GRECI
  • Publication number: 20140110102
    Abstract: An apparatus for releasing chemical agents in a well bore, comprising: a packaging material; a chemical agent, wherein the chemical agent is contained within the packaging material; and an adhesive, wherein the adhesive is attached to the packaging material and associated methods.
    Type: Application
    Filed: October 19, 2012
    Publication date: April 24, 2014
    Applicant: Halliburton Energy Services, Inc.
    Inventor: Lee J. Hall
  • Patent number: 8528632
    Abstract: An electric submersible pump ESP is run in to a desired subterranean location with a packer attached. Once at the desired location the packer is set either using the ESP or some other source of force or pressure. After the ESP has completed the task and needs to be removed, the packer stays set and the ESP releases from it. Removal of the ESP assembly allows a valve in the packer mandrel to close to isolate the zone from which the ESP had been pumping. The ESP can be run in on coiled tubing or rigid tubing or wireline.
    Type: Grant
    Filed: September 16, 2010
    Date of Patent: September 10, 2013
    Assignee: Baker Hughes Incorporated
    Inventors: John J. Mack, Brown L. Wilson
  • Publication number: 20130118729
    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: Application
    Filed: October 24, 2012
    Publication date: May 16, 2013
  • Patent number: 8418757
    Abstract: Corrosion management systems protecting against or managing corrosion of various components in generally vertically oriented structures, that can he located one or more of aboveground and underground. The corrosion management system includes a dispenser system that dispenses at least one corrosion inhibitor to the structure desired to be protected at a plurality of different vertical heights.
    Type: Grant
    Filed: May 5, 2011
    Date of Patent: April 16, 2013
    Assignee: Northern Technologies International Corporation
    Inventors: Efim Ya Lyublinski, Yefim Vaks
  • Patent number: 8210267
    Abstract: Disclosed herein is an atmospheric chamber. The atmospheric chamber includes, a first opposing wall of the chamber and a second opposing wall of the chamber, end members sealingly joining the first and second opposing walls of the chamber to create a fluid tight volumetric space, and at least one support substantially bridging between the first opposing wall and the second opposing wall positioned between respective end members.
    Type: Grant
    Filed: June 4, 2007
    Date of Patent: July 3, 2012
    Assignee: Baker Hughes Incorporated
    Inventor: Marcus A. Avant
  • Publication number: 20110290506
    Abstract: The subject disclosure discloses an apparatus and method of conveying magnetic particles into a wellbore. A plurality of particles which are magnetically attracted to one another in response to exposure to a magnetic field are delivered downhole via a degradable material. The degradable material confines the particles and conveys the particles to a desired location downhole. The structure comprising the degradable material and the confined particles can be lowered into a subterranean well by a cable or wire, or alternatively released into the well under the influence of gravity and flow induced forces. The material degrades in response to conditions encountered in a subterranean environment thus releasing the particles.
    Type: Application
    Filed: May 28, 2010
    Publication date: December 1, 2011
    Applicant: Schlumberger Technology Corporation
    Inventors: Murat Ocalan, Manuel Marya
  • Publication number: 20110108285
    Abstract: A method and apparatus for a wellbore assembly. The wellbore assembly may comprise a conveyance member including at least one of a continuous spooled rod, a wireline, and a slickline; an accumulator system connected to the conveyance member; and a setting tool connected to the accumulator system. The accumulator system may be configured to supply a fluid pressure to actuate the setting tool. A method of operating a wellbore tool may comprise lowering a wellbore assembly into a wellbore using a conveyance member including at least one of a continuous spooled rod, a wireline, and a slickline, wherein the wellbore assembly includes an accumulator system and a setting tool. The method may comprise actuating the accumulator system to provide a fluid pressure to the setting tool. The method may comprise actuating the setting tool using the fluid pressure.
    Type: Application
    Filed: November 4, 2010
    Publication date: May 12, 2011
    Inventors: Walter Stone Thomas Fagley, IV, Gary Duron Ingram, Paul James Wilson, Simon John Harrall
  • Publication number: 20110100634
    Abstract: A method for delivering a chemical composition downhole into a wellbore includes forming a cylindrical body including a treatment chemical, where the cylindrical body includes a flow channel therethrough. The method further includes positioning the cylindrical body into a fluid conduit of a wellbore, and flowing a release fluid through the flow channel to release at least part of the treatment chemical into the release fluid. The release fluid causes the release of the treatment chemical by dissolving the chemical, and/or by removing a coating on the chemical through dissolution, response to pH adjustment, and/or response to an abrasive material in the release fluid. Examples of a treatment chemical include a cross-linker, breaker, fluid loss pill agent, and an encapsulated chemical.
    Type: Application
    Filed: October 30, 2009
    Publication date: May 5, 2011
    Inventor: Don Williamson
  • Publication number: 20110024106
    Abstract: A ball catcher is designed to stop balls that are the same size or different sizes at an inlet on a seat that is connected to a movable biased sleeve. Once the ball or other shaped object lands at the seat the flow around it increases differential pressure on the seat and sleeve and displaces them against the bias. The ball goes into a surrounding annular space and cannot exit. A preferably spiral sleeve guide the movement of the balls in the annular space so that efficient use of the annular space is made to maximize the number of balls that can be captured per unit length of the annular space. As soon as the ball enters the annular space the sleeve shifts back to the original position to stop the next ball at the inlet. Once in the annular space, the balls cannot escape if there is a flow reversal. The central passage remains open to pass other tools and flow.
    Type: Application
    Filed: July 29, 2009
    Publication date: February 3, 2011
    Inventors: Jonathan F. Nelson, Gregory L. Hern
  • Publication number: 20110000662
    Abstract: A source of motion for actuation of a downhole tool is in a sealed housing to protect it from well fluids. The sealed housing is filled with an incompressible fluid and thermal effects can be compensated preferably with a compensation bellows in communication with the fluid. The source of motion is preferable electrically powered and the longitudinal motion that results presses against a bellows within the sealed housing. This master bellows is in sealed contact with a slave bellows through a rigid housing that is seal welded to the housing wall. Movement of the master bellows in the housing results in an equal movement of the slave bellows outside the housing. Feedback loops or calibration for thermal effects are also contemplated.
    Type: Application
    Filed: July 6, 2009
    Publication date: January 6, 2011
    Inventor: Larry G. Schoonover
  • Patent number: 7419937
    Abstract: A method of delivering chemicals such as scale inhibitor into a wellbore producing fluids includes providing the chemicals, in a slow-release form, in a container located in the path of the production fluids so that the production fluids pass through the container. Preferably, the container is suspended in the production tubing and periodically retrieved from the well to be refilled.
    Type: Grant
    Filed: December 19, 2003
    Date of Patent: September 2, 2008
    Assignee: Schlumberger Technology Corporation
    Inventors: Brett Rimmer, Alan Saxon, Francisco Fragachan
  • Patent number: 7198101
    Abstract: A downhole apparatus permitting separation of one part of downhole equipment from another part thereof includes a first part connected to a second part by a connecting member which limits axial and rotational movement of the first and second parts and has first and second ends connected respectively to the first and second parts. The connecting member includes a cross bar extending between the first and second ends having an aperture therein that results in a region of weakness, a portion of the cross bar spaced from the aperture minimizing stress at the region of weakness when torque is transmitted in use between the first and second parts via the connecting member.
    Type: Grant
    Filed: July 30, 2002
    Date of Patent: April 3, 2007
    Assignee: Smith International, Inc.
    Inventors: Bruce McGarian, Ian Alexander Gillies
  • Patent number: 7048066
    Abstract: A downhole tool apparatus for insertion into and sealing engagement with a wellbore. The downhole tool includes upper and lower casing engaging members and an intervening sealing member. In one aspect the intervening sealing member may be a deformable material. In another aspect, the intervening sealing member may be a flowable material cured in the well bore.
    Type: Grant
    Filed: October 9, 2002
    Date of Patent: May 23, 2006
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Paul D. Ringgenberg, Gregory W. Vargus, Lee Wayne Stepp, Donald R. Smith, Ronald L. Hinkie, Don S. Folds
  • Patent number: 6880642
    Abstract: A method and apparatus of plugging and abandoning a well includes using a plug apparatus and installing bentonite elements in an oil well production casing having a bore. The plug apparatus is lowered into the production casing bore to a selected elevation using a slick line or the like. The apparatus has a tool body and slip dies that are movably mounted upon the tool body to move between extended and retracted positions. Afer the tool body is positioned at a selected location within the casing bore, tension is applied to the slick line to move the slip dies to an extended position wherein the slip dies engage the casing and secure the tool body in a desired location. The casing bore is then displaced with water above the tool body. Bentonite elements are then dumped into the water filled wellbore. The bentonite elements are allowed to swell to form a plug. The tool body can be retrieved from the casing bore if desired.
    Type: Grant
    Filed: February 12, 2003
    Date of Patent: April 19, 2005
    Inventors: Jonathan Garrett, Joseph LeRouge, Michael Taylor
  • Patent number: 6789627
    Abstract: An apparatus includes a first member, a second member releasably attached to the first member, and a control line shear mechanism disposed proximate an interface between the first member and the second member. The first and second members can each have a longitudinal bore therethrough and can be moveable in an axial direction to release from one another. The control line shear mechanism may comprise a first shear member attached to the first number and a second shear member attached to the second member, wherein the first and second shear members are adapted to cooperatively shear a control line as the first and second members separate. A method includes separating a first member from a second member and, before or during the separating step, cutting a control line proximal to the paint of separation of the first and second members.
    Type: Grant
    Filed: April 19, 2001
    Date of Patent: September 14, 2004
    Assignee: Schlumberger Technology Corporation
    Inventor: Dwayne D. Leismer
  • Patent number: 6655475
    Abstract: A product, system and method for treating a well bore using a concentrated treatment composition enclosed in a soluble container. The composition-filled container is deposited in the well, preferably through the drill string, followed by a solvent, such as drilling mud or water, to form a circulating solution characterized by the ability to circulate through the well. Most of the circulating solution is recovered at the surface using a mud tank, for example. In a well “sweeping” operation a partially hydrolyzed polyacrylamide powder in a soluble tube is dropped down the drill string. The well bore is then flushed with water or drilling mud to form the liquified polymer down hole. The well is flushed with more water or mud to sweep the cuttings and polymer solution from the well bore.
    Type: Grant
    Filed: November 9, 2001
    Date of Patent: December 2, 2003
    Inventor: H. Lester Wald
  • Patent number: 6648071
    Abstract: A technique for connecting expandable tubulars. The technique comprises an expandable connector system that facilitates the connection of tubular components, such as tubulars used in wellbore environments.
    Type: Grant
    Filed: December 26, 2001
    Date of Patent: November 18, 2003
    Assignee: Schlumberger Technology Corporation
    Inventors: Matthew R. Hackworth, Craig D. Johnson, Patrick W. Bixenman
  • Patent number: 6626074
    Abstract: A down hole pipe cutter is provided to cut a section of pipe from the pipe's interior. The device includes a lower guide plate, an upper guide plate, a connector rod interconnecting the lower guide plate to the upper guide plate, and an eccentrically mounted blade drive assembly. The eccentrically mounted blade drive assembly includes an outer tube and an inner drive shaft that are moveably interconnected to both the lower guide plate and the upper guide plate. The inner drive shaft has a distal end extending through the lower guide plate with a blade attached thereto. The proximal end of the drive shaft extends above the upper guide plate for attachment to a power source, such as a hand drill. The blade drive assembly is rotatable between a first retracted position and a second extended cutting position.
    Type: Grant
    Filed: May 14, 2002
    Date of Patent: September 30, 2003
    Inventor: Theodore D. Wheeler
  • Patent number: 6585040
    Abstract: A downhole drilling apparatus for interconnection in a casing or liner string having a drill bit disposed thereon for enabling the drilling of intersecting wellbores without removal of the drill bit is disclosed. In a disclosed embodiment, the apparatus comprises a housing having a window. A whipstock is disposed within the housing. Between the window and the whipstock is a filler. The whipstock and the filler define a central bore providing a fluid path through the apparatus. A back pressure valve may be disposed within the central bore to prevent back flow of fluids through the apparatus. Once the total depth of an initial wellbore is reached, the casing or liner string, including the apparatus, may be cemented in place. Thereafter, an intersecting wellbore may be drilled by laterally deflecting a second drill bit with the whipstock through the window of the housing.
    Type: Grant
    Filed: November 27, 2001
    Date of Patent: July 1, 2003
    Assignee: Halliburton Energy Services, Inc.
    Inventors: John Hanton, Tommie A. Freeman, William M. Imwalle
  • Patent number: 6152233
    Abstract: The present invention is a surge anchor mechanism which includes a main body, lower unit slidable in relation to the main body, and slip members. The slip members have at least one inclined end surface. The lower unit has an inclined surface forming a frustoconical shape wherein the slope of the surface complements the inclined end surface of the slip member. The lower unit is aligned along the axis of the main body and movable in relation to the main body along this axis. The slip members are biased towards the lower unit and movable transversely in relation to the axis of the lower unit. As a surge occurs in the well, the lower unit and the main body are forced towards each other. This causes the inclined surface of the lower unit to cooperate with and move along the corresponding inclined surface of the slip member forcing the slip member outward from the lower unit and into engagement with the well casing.
    Type: Grant
    Filed: January 15, 1999
    Date of Patent: November 28, 2000
    Inventors: William Jani, Roy Hansen
  • Patent number: 6152219
    Abstract: A downhole pulling tool (100) for retrieving downhole devices (102, 104) from a wellbore is disclosed. The downhole pulling tool (100) includes a mandrel (106) and a sleeve (108) that is slidably disposed about the mandrel (106). The sleeve (108) is moveable in a first direction from a first position to a second position relative to the mandrel (106) and is moveable in a second direction from the second position to a third position relative to the mandrel (106). An engagement member (114) radially extends between the mandrel (106) and the sleeve (108) and is operated from a retracted position to an engagement position when the sleeve (108) is moved to the second position relative to the mandrel (106) after equalization.
    Type: Grant
    Filed: January 29, 1999
    Date of Patent: November 28, 2000
    Assignee: Halliburton Energy Services, Inc.
    Inventors: James D. Vick, Jr., Mike L. Braby
  • Patent number: 6095245
    Abstract: A repositionable apparatus for perforating and gravel packing an underground well uses gravity or other means to reposition the apparatus instead of a conventional wireline or work string attached to a rig. Perforating and packing can be accomplished without a rig after the apparatus is initially placed and set in the well. One embodiment of the inventive apparatus uses a perforating gun assembly, a connected ported sub above the gun assembly, a translating annulus packer above the ported sub, a circumferential screen located above the packer, blank pipe connected above the screen, an openable port above the blank tubular pipe, and a second translating annulus packer attached to the blank tubular.
    Type: Grant
    Filed: October 7, 1999
    Date of Patent: August 1, 2000
    Assignee: Union Oil Company of California
    Inventor: Matthew J. Mount
  • Patent number: 6050336
    Abstract: A method and apparatus are disclosed which allow isolation of a plurality of zones for treatment, particularly sand fracturing. The lowermost barrier can be pumped through tubing and anchored in cased or open holes. In the preferred embodiment, the pumped plug has a visco-elastic member which contains a particulate aggregate mixture, such as described in U.S. Pat. No. 5,417,285. The visco-elastic material is subjected to a force which changes its shape so that the material obstructs the wellbore. The shape change also accomplishes dehydration of the material within the visco-elastic enclosure by virtue of fluid displacement, resulting from a volume reduction, hardening it so that a plug using the visco-elastic material is formed. Thereafter, a packer on the tubing string is set to isolate the zone for sand fracturing. The process can be repeated without tripping out of the hole as additional plugs are pumped through tubing and the process is repeated.
    Type: Grant
    Filed: October 24, 1997
    Date of Patent: April 18, 2000
    Assignee: Baker Hughes Incorporated
    Inventors: Darrin L. Willauer, Rustom K. Mody, Greg Badke, Mark Plante
  • Patent number: 5934372
    Abstract: The invention provides apparatus for producing well fluids from an oil bearing formation penetrated by a well. The apparatus includes a tubing string forming a production flow path for production fluids between the earth's surface and a location in the well suitable for receiving well production fluids, a power tubing generally parallel to the production tubing and connected to the flow path of the production tubing, and a cross over flow mechanism to divert the flow of production fluids from the power tubing to the production flow path. A lubricant flow path extends from the earth's surface to a location near a pumping apparatus disposed in the power tubing to allow a lubricant to be introduced into the pumping apparatus.
    Type: Grant
    Filed: July 24, 1997
    Date of Patent: August 10, 1999
    Assignee: Muth Pump LLC
    Inventor: Garold M. Muth
  • Patent number: 5765639
    Abstract: The invention provides apparatus for producing well fluids from an oil bearing formation penetrated by a well including a tubing string forming a production flow path for production fluids between the earth's surface and a location in the well suitable for receiving well production fluids, a power tubing parallel to the production tubing and connected to the flow path of the production tubing, a pump barrel formed in the power tubing, and a lubricating plunger in the pump barrel forming an annulus therewith and having ports to permit flow of lubricating fluids from the lubricating plunger into the annulus. The apparatus is provided with means for providing lubrication fluid to the lubricating plunger.
    Type: Grant
    Filed: July 29, 1996
    Date of Patent: June 16, 1998
    Assignee: Muth Pump LLC
    Inventor: Garold M. Muth
  • Patent number: 5758725
    Abstract: A method and device for increasing oil and gas recovery include connecting an oil and gas flow enhancing stick to a weighted plunger to speed the decent of the stick to the bottom of a well, which optionally includes a retrieving member to retrieve the plunger from the well.
    Type: Grant
    Filed: May 6, 1996
    Date of Patent: June 2, 1998
    Inventor: Foy Streetman
  • Patent number: 5505258
    Abstract: The present invention provides a pumping system having separate parallel power tubing and production tubing strings in which production is pumped up the production tubing through a removable flow control valve and a rod operated insertable and removable pump is disconnectably connected into the power tubing wherein the insert type pump and the removable flow control means may be removed from and inserted into, respectively, the power tubing and the production tubing strings without the need to remove either tubing string from the well.
    Type: Grant
    Filed: October 20, 1994
    Date of Patent: April 9, 1996
    Assignee: Muth Pump LLC
    Inventor: Garold M. Muth
  • Patent number: 5174375
    Abstract: A hydraulic setting and release system for run in and cementing of a work string and tubular within a borehole has a small diameter pipe string extending from a release tool through a packer to within the tubular. The system forms at least one annulus between the pipe string and tubular. The pipe string includes a ported nipple and a seat subassembly downstream of the ported nipple. The pipe string allows the packer to anchor the tubular, by being inflated through the port even when the seat is blocked. The pipe string also forms a flotation annulus which is sealed by, and the pipe string is supported by, a drag/seal subassembly downstream of the seat assembly. The system also includes a safety release tool for reliable uncoupling. Uncoupling is accomplished after run in, displacing a cement slurry slug separated by a plug or dart using a following pump down fluid which can land on the seat and block further flow and displacement of cement slurry, and anchoring.
    Type: Grant
    Filed: April 30, 1991
    Date of Patent: December 29, 1992
    Assignee: Union Oil Company of California
    Inventors: Michael G. Mims, Mark D. Mueller, John L. Hood, III
  • Patent number: 5109923
    Abstract: The invention relates to apparatus for protecting wellhead bores during drilling operations, and more particularly to bowl protectors for preventing damage to wellhead bore seal surfaces as drilling equipment passes through the wellhead. The invention includes a bowl protector and a seperable false bowl for accepting a casing hanger, the bowl protector and false bowl being releasably connected together by shear pins.
    Type: Grant
    Filed: April 11, 1991
    Date of Patent: May 5, 1992
    Inventor: Bashir M. Koleilat
  • Patent number: 4993493
    Abstract: A retrievable landing method and assembly for lowering on a well string into a well bore a retrievable receptacle having a landing shoulder and sealably securing it in position on a tubular member landing seat. The retrievable receptacle is releasably coupled to the well string and after the retrievable receptacle landing shoulder engages the tubular member landing seat, the well string is manipulated to actuate the releasable coupling and release the well string for movement relative to the retrievable receptacle. Latch means associated with the retrievable receptacle are responsive to the well string manipulation to secure the retrievable receptacle sealingly with the well bore tubular member.
    Type: Grant
    Filed: April 30, 1987
    Date of Patent: February 19, 1991
    Assignee: Texas Iron Works, Inc.
    Inventor: Ronald D. Arnold
  • Patent number: 4905759
    Abstract: The described invention includes an apparatus for perforating a well through use of one or more perforating guns in a collapsible perforating assembly. The collapsible perforating assembly includes a collapsible spacer mandrel which may be placed between two or more perforating guns. The spacer mandrel will be adapted to keep the guns in a desired spaced relationship prior to actuation of the guns. After actuation, the gun spacer assembly will be allowed to telescopically collapse in length. When the perforating assembly is then released from the tubing string and dropped to the bottom of the well, the assembly will collapse, decreasing the amount of rat hold necessary to accommodate the perforating assembly.
    Type: Grant
    Filed: March 25, 1988
    Date of Patent: March 6, 1990
    Assignee: Halliburton Company
    Inventors: David S. Wesson, Kevin R. George, David M. Haugen
  • Patent number: 4877089
    Abstract: Apparatus for coupling wireline tools to coil tubing wherein a pull-out, disconnect, is provided. The pull-out consists of two tubular members with flared, bell-shaped portions, one such portion being coaxially disposed within the other. A ferrule applies pressure to the interface of the surfaces of said flared portions. Sufficient tension on the coil tubing pulls the flared portion of the interior member through the neck and out of the exterior member. Pilot valves prevent intrusion of bore hole fluid into the coupling device during logging and into the coil tubing if a pull-out has been effected.
    Type: Grant
    Filed: June 18, 1987
    Date of Patent: October 31, 1989
    Assignee: Western Atlas International, Inc.
    Inventor: Robert W. Burns
  • Patent number: 4846279
    Abstract: Treatment fluid is injected into the production fluid of a well from a bladder contained in a canister at the bottom portion of the well bore. The flow rate is predetermined through use of a capillary tube connecting the bladder and an injection outlet. Differential pressure between the bladder and the outlet to actuate the flow of treatment fluid is created either by restricting the flow of production fluid adjacent the outlet or by compressing the bladder through the use of water-expansible material in contact with the bladder in the canister. An aperture in the bottom of the canister is provided to expose the bladder to the well fluid.
    Type: Grant
    Filed: January 13, 1988
    Date of Patent: July 11, 1989
    Assignee: Marathon Oil Company
    Inventor: Charles R. Bruce
  • Patent number: 4790386
    Abstract: Treatment composition is released into a well by lowering a container filled with the composition to the bottom of the well. The corrosive well fluid dissolves the composition through the open upper end of the container and corrodes away the walls of the container from the inside out. The outer surface of the container walls is coated with a material, such as tetrafluoroethylene, which acts as a barrier to the well fluid to prevent it from directly contacting the outer wall surface. In this manner treatment composition is gradually released from the top end of the ever-diminishing length of container and the container is degraded in the well.
    Type: Grant
    Filed: February 1, 1988
    Date of Patent: December 13, 1988
    Assignee: Marathon Oil Company
    Inventors: Irvin D. Johnson, Charles R. Bruce
  • Patent number: 4721159
    Abstract: A capsule for conveying chemicals through a borehole for stopping lost circulation is totally made from a thermoplastic or fragile material or has a bottom plate made from such a material. The capsule containing the chemicals is let down until it reaches the location of the lost circulation, where the capsule is either destroyed by a drilling rod or softened by the high temperature and high pressure at the location. Thus, the chemicals are diffused.
    Type: Grant
    Filed: November 4, 1986
    Date of Patent: January 26, 1988
    Assignees: Takenaka Komuten Co., Ltd., Sekiso Co., Ltd.
    Inventors: Katsutoshi Ohkochi, Mamoru Shinozaki, Toshiyuki Ohshita, Masayasu Kitano, Seizo Kamata
  • Patent number: 4706753
    Abstract: A capsule for conveying chemicals through a borehole for stopping lost circulation has a fragile bottom plate. A weight for destroying the bottom plate is suspended above the capsule by a cord which extends over knife edges. A messenger for cutting the cord is mounted to a wire line. The weight is caused to collide with the messenger to cut the cord, for breaking the bottom plate. Thus, the chemicals are diffused.
    Type: Grant
    Filed: November 4, 1986
    Date of Patent: November 17, 1987
    Assignee: Takanaka Komuten Co., Ltd
    Inventors: Katsutoshi Ohkochi, Mamoru Shinozaki, Toshiyuki Ohshita, Masayasu Kitano, Seizo Kamata
  • Patent number: 4338999
    Abstract: A trap to catch knockout plugs or "pins" from casing inflation packers. The trap is mounted in the well casing above a float valve, and catches pins falling from casing inflation packers in the casing above it as these pins are broken off by a cementing plug descending into the well, thus preventing the loose pins from jamming the float valve open after cementing is completed. The trap comprises a generally cylindrical hollow body having rods extending laterally across its bore, and a collapsible pin guide mounted on top of the body to guide the pins into the body, where they are constrained above the float valve by the rods.
    Type: Grant
    Filed: February 19, 1980
    Date of Patent: July 13, 1982
    Assignee: Halliburton Company
    Inventor: Ernest E. Carter, Jr.
  • Patent number: 4276934
    Abstract: A well, such as an oil well, may be plugged, on command, from the well head, by activating a plurality of preplaced motor-driven, foam generating capsules causing a foam to be generated and forced into the well hole where it hardens.
    Type: Grant
    Filed: March 6, 1980
    Date of Patent: July 7, 1981
    Inventor: Ward M. Fraser
  • Patent number: 4191254
    Abstract: Apparatus and method of filling voids in a ground stratum in the vicinity of a well bore are enclosed. The apparatus is a self-contained device and, for example, it can be placed in the well bore in the vicinity of the voids to be plugged by dropping the apparatus down a drill string. Once in place it will automatically respond to the well pressure to provide the required plugging. To accomplish this the apparatus includes precursors of polymers such as precursors of polyurethanes, epoxy type polymers, polyesters or other polymers which are released from the apparatus and flow into the voids.
    Type: Grant
    Filed: January 16, 1978
    Date of Patent: March 4, 1980
    Inventors: Kenneth E. Baughman, Earl N. Doyle