Inserted Screen Plug Patents (Class 166/229)
  • Patent number: 9366084
    Abstract: A helical displacement well with preassembled segments includes a preassembled shaft-forming penetrator tube including helical plates mounted to its exterior that may be rotated to propel the casing into the ground. A hydraulic drill motor rotates the penetrator tube and as it moves deeper into the ground. Extension tubes may be added to and coupled to the penetrator tube. A hydraulic drill motor is attached to the upper end of the extension tubes in order to continue the rotation of the assembled helical displacement well. The filter screen and the piping are installed concurrently with the addition of the extension tubes at the surface of the ground.
    Type: Grant
    Filed: January 17, 2013
    Date of Patent: June 14, 2016
    Inventor: Frankie A. R. Queen
  • Patent number: 9353584
    Abstract: A layer of permeable material is positioned on an area of lost circulation lithology in a wellbore. An example of the permeable material includes a planar member with perforations that is rolled into and retained in an annular configuration. The permeable material is lowered into the wellbore adjacent the area of lost circulation and allowed to unroll and expand radially outward against walls of the wellbore. The wellbore wall along the area of lost circulation lithology can be reamed out so the layer of permeable material is out of the way of a drill bit. A bridging agent can be applied on the interface where the permeable material contacts the wellbore wall.
    Type: Grant
    Filed: September 18, 2012
    Date of Patent: May 31, 2016
    Assignee: Saudi Arabian Oil Company
    Inventors: John Timothy Allen, Brett W. Bouldin
  • Patent number: 9057242
    Abstract: A method of removing a downhole assembly comprises contacting, in the presence of an electrolyte, a first article comprising a first material and acting as an anode, and a second article comprising a second material having a lower reactivity than the first material and acting as a cathode, the downhole assembly comprising the first article in electrical contact with the second article, wherein at least a portion of the first article is corroded in the electrolyte.
    Type: Grant
    Filed: August 5, 2011
    Date of Patent: June 16, 2015
    Assignee: Baker Hughes Incorporated
    Inventors: Oleg A. Mazyar, Michael Johnson, Sean Gaudette
  • Publication number: 20140367084
    Abstract: A sensing system comprises at least one gauge disposed in a wellbore, a sensing link coupled to the at least one gauge, and a debris barrier coupled to the sensing link. The debris barrier comprises a housing coupled to the sensing link, and a barrier element configured to reduce the transport of particulates from the wellbore into the sensing link.
    Type: Application
    Filed: August 29, 2014
    Publication date: December 18, 2014
    Inventors: William Mark Richards, Thomas Jules Frosell
  • Patent number: 8794313
    Abstract: A debris barrier snap fits to a tubular groove of one of the tubulars that define the annular gap in which the barrier is to be mounted. It is loosely mounted so that it can center itself in the annulus as the relatively moving members go out of a concentric arrangement. The continuous carbon fiber material used for the debris barrier has lubricious qualities to act as a bushing when the annulus shape changes due to movement of the tubulars out of a concentric relationship. An outer or inner groove on the barrier acts to trap and retain small particles that manage to advance between the barrier and the outer tubular. The snap fit is accomplished with flexible spaced apart fingers with grip surfaces to engage a groove on one of the tubulars. The barrier has low expansion under thermal loads that acts to stop the entrance of debris.
    Type: Grant
    Filed: August 5, 2011
    Date of Patent: August 5, 2014
    Assignee: Baker Hughes Incorporated
    Inventors: Donald T. Heckel, James R. Zachman
  • Patent number: 8678084
    Abstract: A debris barrier snap fits to a tubular groove of one of the tubulars that define the annular gap in which the barrier is to be mounted. It is loosely mounted so that it can center itself in the annulus as the relatively moving members go out of a concentric arrangement. The continuous carbon fiber material used for the debris barrier has lubricious qualities to act as a bushing when the annulus shape changes due to movement of the tubulars out of a concentric relationship. An outer or inner groove on the barrier acts to trap and retain small particles that manage to advance between the barrier and the outer tubular. The snap fit is accomplished with flexible spaced apart fingers with grip surfaces to engage a groove on one of the tubulars. The barrier has low expansion under thermal loads that acts to stop the entrance of debris.
    Type: Grant
    Filed: August 5, 2011
    Date of Patent: March 25, 2014
    Assignee: Baker Hughes Incorporated
    Inventors: Donald T. Heckel, James R. Zachman
  • Patent number: 8672030
    Abstract: A method and system for cementing a tubular and mud motor in a wellbore utilizing burst disks above the mud motor. The burst disks rupture to permit the cement to flow through the burst disks and bypass the mud motor. All of the burst disks reliably rupture at a predetermined and known threshold pressure so as to permit cement to be pumped at a desired rate through all of the ruptured burst disks. Each burst disk is provided with a cover for maintaining a chamber of a known pressure between the cap and the burst disk. All of the burst disks predictably and reliably rupture at the rated pressure.
    Type: Grant
    Filed: June 20, 2011
    Date of Patent: March 18, 2014
    Assignee: Trican Well Services, Ltd.
    Inventor: Scott Sherman
  • Publication number: 20140020898
    Abstract: A well screen assembly for use downhole comprises a fluid pathway configured to provide fluid communication between an exterior of a wellbore tubular and an interior of the wellbore tubular, a flow restrictor disposed in the fluid pathway, and a plug disposed in series with the flow restrictor in the fluid pathway. The plug substantially prevents a fluid flow through the fluid pathway. The plug is configured to be at least partially dissolvable when contacted by a fluid, and the fluid comprises a chemical configured to dissolve the plug.
    Type: Application
    Filed: July 19, 2012
    Publication date: January 23, 2014
    Applicant: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Luke William Holderman, Jean-Marc Lopez
  • Patent number: 8631863
    Abstract: A debris barrier snap fits to a tubular groove of one of the tubulars that define the annular gap in which the barrier is to be mounted. It is loosely mounted so that it can center itself in the annulus as the relatively moving members go out of a concentric arrangement. The continuous carbon fiber material used for the debris barrier has lubricious qualities to act as a bushing when the annulus shape changes due to movement of the tubulars out of a concentric relationship. An outer or inner groove on the barrier acts to trap and retain small particles that manage to advance between the barrier and the outer tubular. The snap fit is accomplished with flexible spaced apart fingers with grip surfaces to engage a groove on one of the tubulars.
    Type: Grant
    Filed: August 5, 2011
    Date of Patent: January 21, 2014
    Assignee: Baker Hughes Incorporated
    Inventors: Donald T. Heckel, James R. Zachman
  • Patent number: 8434561
    Abstract: A method of drilling and completing a well can include drilling a section of a wellbore, positioning a perforated shroud in the section of the wellbore, securing the perforated shroud by setting a hanger, and isolating the section of the wellbore from a remainder of the wellbore vertically above the section of the wellbore. The drilling, positioning, securing and isolating steps can be performed while the section of the wellbore is not exposed to a liquid column extending to a surface location. The drilling, positioning, securing and isolating steps can be performed in a single trip of a drill string into the wellbore.
    Type: Grant
    Filed: December 20, 2011
    Date of Patent: May 7, 2013
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Raymond R. Bullock, Andrew D. Penno
  • Publication number: 20130032332
    Abstract: A debris barrier snap fits to a tubular groove of one of the tubulars that define the annular gap in which the barrier is to be mounted. It is loosely mounted so that it can center itself in the annulus as the relatively moving members go out of a concentric arrangement. The continuous carbon fiber material used for the debris barrier has lubricious qualities to act as a bushing when the annulus shape changes due to movement of the tubulars out of a concentric relationship. An outer or inner groove on the barrier acts to trap and retain small particles that manage to advance between the barrier and the outer tubular. The snap fit is accomplished with flexible spaced apart fingers with grip surfaces to engage a groove on one of the tubulars. The barrier has low expansion under thermal loads to retain the clearance that acts to stop the entrance of debris.
    Type: Application
    Filed: August 5, 2011
    Publication date: February 7, 2013
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Donald T. Heckel, James R. Zachman
  • Patent number: 8336619
    Abstract: A downhole apparatus is described comprising a main body coupled with a well tubing and a swellable mantle disposed on the main body. The swellable mantle expands upon contact with at least one predetermined fluid, and the main body comprises at least one opening for fluid flow between an exterior of the main body and the bore. An insert permits the passage of fluid, through the swellable mantle, between the exterior of the apparatus and the opening. In one aspect of the invention a screen filters solids between the exterior of the apparatus and the bore, and a swellable mantle comprises a first region which allows the passage of fluid between the exterior of the apparatus and the main body and a second region, circumferentially adjacent the first region, which substantially prevents passage of fluid. Corresponding well completion and production methods are also described.
    Type: Grant
    Filed: April 10, 2008
    Date of Patent: December 25, 2012
    Assignee: Swelltec Limited
    Inventors: Kim Nutley, Brian Nutley
  • Publication number: 20110290012
    Abstract: The present disclosure is directed to a filter element for simulating a fracture in subterranean formations comprising a non-porous filter element configured to be disposed in a wellbore fluid testing device, the non-porous filter element having a plurality of radial perforations extending there through.
    Type: Application
    Filed: August 20, 2008
    Publication date: December 1, 2011
    Inventors: Trevor G. Jappy, Lynn H. Jenkins, Mark W. Sanders
  • Publication number: 20110253391
    Abstract: A flow control screen having a fluid flow path between a perforated section of a base pipe and a filter medium positioned around a blank pipe section of the base pipe. A valve assembly, including a piston body and a valve plug, is disposed within the fluid flow path. The piston body has an internal seat and a collet assembly that is radially outwardly constrained in a first operating position of the piston body to retain the valve plug therein and radially outwardly unconstrained in a second operating position of the piston body. Reverse flow is initially prevented as an 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, an external differential pressure causes the valve plug to be expelled through the collet assembly, thereby no longer preventing reverse flow.
    Type: Application
    Filed: April 15, 2010
    Publication date: October 20, 2011
    Applicant: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Jan Veit, Jean-Marc Lopez, Floyd Randolph Simonds
  • Patent number: 8011432
    Abstract: An inflow control assembly. The inflow control assembly can include an inner tubular member comprising a hole formed therethrough. A cover assembly can encircle the hole. The cover assembly can include a first outer member disposed about at least a portion of the inner tubular member. The first outer member can be secured to the inner tubular member. A second outer member can be disposed about at least a portion of the inner tubular member, and the second outer member can be secured to the inner tubular member. A screen portion can be disposed between the outer members and between the inner tubular member and the outer members. An annulus can be formed between the outer members and the inner tubular member, and the annulus can provide a flow path between the hole and the screen portion.
    Type: Grant
    Filed: February 6, 2009
    Date of Patent: September 6, 2011
    Assignee: Schlumberger Technology Corporation
    Inventors: Michael D. Langlais, Tage Thorkildsen, Terje Moen, Odd Rønnestad
  • Publication number: 20110108266
    Abstract: A debris barrier assembly for use downhole includes a single body annular barrier having a bore; an extension tubular inserted through the bore; an upper tubular coupled to an upper end of the extension tubular; and a lower tubular coupled to a lower end of the extension tubular, wherein the lower tubular includes a release valve. In one embodiment, the release valve is mechanically opened. In another embodiment, a torque connection is used to couple the upper tubular to the extension tubular.
    Type: Application
    Filed: November 12, 2009
    Publication date: May 12, 2011
    Inventors: Steven B. Smith, Mark S. Fuller
  • Patent number: 7918272
    Abstract: An in-flow control device controls fluid flow into a wellbore tubular using a permeable medium positioned in a flow space. The permeable medium induces a predetermined pressure differential in the flow space. The permeable medium may include separate elements having interstitial spaces and/or solid porous members. In arrangements, a filtration element may be positioned upstream of the flow space. In arrangements, the flow space may be formed in a plug member associated with the housing. In certain embodiments, a flow restriction element, such as a check valve, in the housing may provide parallel fluid communication with the bore of the wellbore tubular. Additionally, an occlusion body may be positioned in the flow space and configured to disintegrate upon exposure to a preset condition. The occlusion body temporarily seals the flow space so that a bore of the tubular may be pressurized.
    Type: Grant
    Filed: October 19, 2007
    Date of Patent: April 5, 2011
    Assignee: Baker Hughes Incorporated
    Inventors: Sean L. Gaudette, Michael H. Johnson
  • Publication number: 20110056688
    Abstract: A screen assembly includes a tubular having one or more openings therein. A screen disposed about the tubular. The one or more devices disposed within the one or more openings. The devices each include a beaded matrix and a housing. Also included is a method for completing a wellbore with a sand screen.
    Type: Application
    Filed: November 15, 2010
    Publication date: March 10, 2011
    Applicant: BAKER HUGHES INCORPORATED
    Inventor: Michael H. Johnson
  • Patent number: 7832473
    Abstract: A method is disclosed for controlling the flow of fluid between a downhole formation and a base pipe located in wellbore proximate the downhole formation. A plurality of chokes are established between the formation and the base pipe to regulate the flow of fluid between the formation and the base pipe. In one embodiment, each choke comprises a nozzle formed in the base pipe. In another embodiment, each choke comprises a nozzle in a housing arranged on the base pipe. A plurality of plugs are pumped downhole for engagement with the nozzles. The pressure in the wellbore is then increased until the plugs engage each nozzle. In an alternative embodiment, plugs are pumped downhole and stop up the housing containing the nozzles. Fluid flow between the base pipe and the downhole formation may be reestablished by dissolving the plugs or by back-flowing the production string to dislodge them.
    Type: Grant
    Filed: June 26, 2007
    Date of Patent: November 16, 2010
    Assignee: Schlumberger Technology Corporation
    Inventor: Rolf Emil Pensgaard
  • Patent number: 7832489
    Abstract: An apparatus and method for completing a well. The apparatus can include a packer located downhole of a sand control sliding sleeve extension device to create an upper annulus and a lower annulus. The apparatus can also include a formation isolation well control barrier device located downhole of both the sand control sliding sleeve extension and the packer to create a lower tubular region an upper tubular region.
    Type: Grant
    Filed: December 19, 2008
    Date of Patent: November 16, 2010
    Assignee: Schlumberger Technology Corporation
    Inventor: Anwar Ahmed Maher Assal
  • Patent number: 7789151
    Abstract: Disclosed herein is a downhole plug protection system. The system includes, a tubular having perforations in a perforated portion, a screen in fluidic communication with the tubular, and a ring in sealable communication with the tubular and attached to the screen the ring having an extended portion positioned radially outwardly of the perforated portion.
    Type: Grant
    Filed: June 18, 2008
    Date of Patent: September 7, 2010
    Assignee: Baker Hughes Incorporated
    Inventor: René Langeslag
  • Patent number: 7789152
    Abstract: Disclosed herein is a downhole plug protection system. The system includes, a tubular having perforations in a perforated portion, a screen in fluidic communication with the tubular, a ring in sealable communication with the tubular and attached to the screen the ring having an extended portion positioned radially outwardly of the perforated portion, and a float shoe in fluidic communication with the perforations positionable downhole of the perforated portion.
    Type: Grant
    Filed: August 15, 2008
    Date of Patent: September 7, 2010
    Assignee: Baker Hughes Incorporated
    Inventor: René Langeslag
  • Patent number: 7775271
    Abstract: An injection fluid distribution configuration including a tubular having a plurality of openings therein and a plurality of beaded matrixes disposed within the openings. At least one of the beaded matrixes having an injection fluid permeability different than an injection fluid permeability of at least one other of the plurality of beaded matrixes. A method for distributing an injection fluid in a wellbore. A method for making an injection fluid distribution apparatus for distributing an injection fluid in a wellbore.
    Type: Grant
    Filed: July 11, 2008
    Date of Patent: August 17, 2010
    Assignee: Baker Hughes Incorporated
    Inventor: Michael H. Johnson
  • Publication number: 20100200233
    Abstract: Flow control systems and methods for use in injection wells and in the production of hydrocarbons utilize a particulate material disposed in an external flow area of a flow control chamber having an internal flow channel and an external flow area separated at least by a permeable region. The particulate material transitions from a first accumulated condition to a free or released condition when a triggering condition is satisfied without requiring user or operator intervention. The released particles accumulate without user or operator intervention, to control the flow of production fluids through a flow control chamber by at least substantially blocking the permeable region between the external flow area and the internal flow channel.
    Type: Application
    Filed: August 7, 2008
    Publication date: August 12, 2010
    Inventors: Charles S. Yeh, Bruce A. Dale
  • Patent number: 7699101
    Abstract: A well system having a galvanic time release plug. A well system includes a flow passage and a flow blocking device which selectively obstructs flow through the passage, the device including an electrode in a galvanic cell. A flow blocking device for use in conjunction with a subterranean well includes a portion which delays an electrochemical reaction in a galvanic cell. A method of controlling fluid flow in a well system includes the steps of: obstructing flow through a passage using a flow blocking device which includes an electrode of a galvanic cell; and increasing flow through the passage by operation of the galvanic cell.
    Type: Grant
    Filed: December 7, 2006
    Date of Patent: April 20, 2010
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Michael L. Fripp, Haoyue Zhang, Luke W. Holderman, Deborah Fripp, Ashok K. Santra, Anindya Ghosh
  • Patent number: 7673678
    Abstract: A system for use in a well includes plural flow control devices to control fluid flow in respective zones of the well, where each of at least some of the flow control devices includes a membrane having a permeable material to provide a flow restriction. The membranes of the at least some flow control devices have different permeabilities to provide corresponding different flow restrictions.
    Type: Grant
    Filed: December 21, 2006
    Date of Patent: March 9, 2010
    Assignee: Schlumberger Technology Corporation
    Inventors: Thomas D. MacDougall, Nihat Ovutmen, Mark Fraker, Qing Yao, Donald Ross
  • Patent number: 7644758
    Abstract: In one aspect of the invention a valve that operates in association with a downhole screen is threaded into the wall of a base pipe after being inserted through a saddle. When the valve body is threaded in, the engagement into the wall threads in the base pipe acts as a sealing force on a ring seal between the saddle and the base pipe and between the valve body and the saddle. The valve itself can be outfitted with a cover with openings that can be integral or removable and disposed at the end of the valve that is innermost to the base pipe. Preferably a series of elongated slots are used that can catch slurry if the well is to be killed while allowing subsequent production to drive the accumulated solids from well killing back into the base pipe. Another feature places the valve in a base pipe opening under a cylindrical screen section to reduce assembly time and cost of constructing an adjacent housing to one side of the cylindrical screen section to accommodate the valve.
    Type: Grant
    Filed: April 25, 2007
    Date of Patent: January 12, 2010
    Assignee: Baker Hughes Incorporated
    Inventors: Martin P. Coronado, Stephen L. Crow, Knut Herman Henriksen
  • Patent number: 7631689
    Abstract: Methods for forming a barrier around at least a portion of a treatment area in a subsurface formation are described herein. Sulfur may be introduced into one or more wellbores located inside a perimeter of a treatment area in the formation having a permeability of at least 0.1 darcy. At least some of the sulfur is allowed to move towards portions of the formation cooler than the melting point of sulfur to solidify the sulfur in the formation to form the barrier.
    Type: Grant
    Filed: April 20, 2007
    Date of Patent: December 15, 2009
    Assignee: Shell Oil Company
    Inventors: Harold J. Vinegar, Del Scot Christensen
  • Patent number: 7581586
    Abstract: A wellbore screen includes a base pipe including a wall, an inner bore surface and an outer surface, an opening formed through the base pipe wall and a filter cartridge mounted in the opening. In one aspect, the wellbore screen includes an impermeable layer relative to the opening and the impermeable layer may be selected to be substantially impermeable when in a closed position in the opening to passage of fluids through the opening and, the impermeable layer is at least one of (i) selectively openable to permit fluid flow through the opening and (ii) selectively closeable when triggered to close the opening. In another aspect, the opening may include a tapering diameter from one end to the other and the filter cartridge may include an outer diameter formed to reversibly and substantially correspondingly taper relative to the opening to permit a taper lock fit in the opening.
    Type: Grant
    Filed: August 15, 2007
    Date of Patent: September 1, 2009
    Assignee: Absolute Completion Technologies Ltd.
    Inventor: Thane Geoffrey Russell
  • Publication number: 20090173490
    Abstract: A sand control screen assembly (40) includes a base pipe (44) having a plurality of openings (45) in a sidewall portion thereof and a swellable material layer (46) disposed exteriorly of the base pipe (44) and having a plurality of openings (47) that correspond to the openings (45) of the base pipe (44). A plurality of telescoping perforations (48) are operably associated with the openings (45) of the base pipe (44) and at least partially disposed within the corresponding openings (47) of the swellable material layer (46). A filter medium (56) is disposed within each of the telescoping perforations (48). In operation, radial expansion of the swellable material layer (46), in response to contact with an activating fluid, causes the telescoping perforations (48) to radially outwardly extend.
    Type: Application
    Filed: January 8, 2008
    Publication date: July 9, 2009
    Inventors: Ronald Glen Dusterhoft, Carl Bismark Ferguson
  • Publication number: 20090101335
    Abstract: A fluid media tell-tale configuration including a tubular having an inside surface with which a fluid media will make contact during application of the fluid media to a target destination. The fluid media tell-tale configuration further including one or more openings in the tubular having a beaded matrix therein. The beaded matrix being permeable to a fluid transport component of the fluid media while being impermeable to a residue component of the fluid media. A method for applying a fluid media to a target location with a tell-tale confirmation.
    Type: Application
    Filed: June 23, 2008
    Publication date: April 23, 2009
    Applicant: BAKER HUGHES INCORPORATED
    Inventor: MICHAEL H. JOHNSON
  • Publication number: 20090101336
    Abstract: A drill-in liner assembly including a tubular and a plurality of substantially radially oriented openings in the tubular arranged in a pattern; the pattern selected to substantially maintain torsional strength of the tubular while facilitating in-flow of target fluid. Also including a plurality of beaded matrix plugs disposed within one or more of the plurality of openings such that torsional load placed upon the plurality of openings in the tubular is borne by the plugs. An erosion resistant filtering arrangement including a tubular, a plurality of openings in the tubular arranged in a pattern, and a plurality of beaded matrix plugs disposed within one or more of the plurality of openings.
    Type: Application
    Filed: June 24, 2008
    Publication date: April 23, 2009
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: MICHAEL H. JOHNSON, ROBERT O'BRIEN
  • Patent number: 7451815
    Abstract: A sand control screen assembly for use in a wellbore includes a tubular base pipe having a first perforated section. The first perforated section has at least a first opening that allows fluid flow therethrough. The assembly also includes an internal seal element disposed within an internal diameter of the tubular base pipe and positioned at least partially overlapping the first perforated section. The internal seal element is able to control fluid flow through the first opening. The internal seal element includes a first material that is dissolvable by a first solvent, and may be dissolved by exposing the internal seal element to the first solvent until the internal seal element no longer controls fluid flow through the first opening.
    Type: Grant
    Filed: August 22, 2005
    Date of Patent: November 18, 2008
    Assignee: Halliburton Energy Services, Inc.
    Inventor: Travis T. Hailey, Jr.
  • Patent number: 7360611
    Abstract: A strainer system having two separate strainers positioned in parallel, where one strainer can be cleaned while still permitting normal flow through the other strainer. The system flow circuit is arranged so that a high pressure backwashing flow can be applied to one strainer while the other strainer is providing its normal straining function. The backwashed strainer is then isolated by valves so that its access flange can be removed and the particulate buildup within the valve plug cleaned out. The strainer is then returned to service following the replacement of the access flange. In this manner, it is possible to alternate between the two strainers so that continuous flow can be maintained to the hydraulic choke located downstream of the strainer system.
    Type: Grant
    Filed: May 23, 2007
    Date of Patent: April 22, 2008
    Assignee: Expro Americas, L.P.
    Inventors: Donald Glynn Sims, Michael James Taylor, Robert Frank Schmidt, David Anthony Schmidt, John Walton McCaskill
  • Publication number: 20080035330
    Abstract: Disclosed is a well screen assembled on a base pipe and having an improved drainage layer disposed between the outer filter material and the base pipe. The improved drainage layer can be formed from a variety of materials and shapes. The drainage layer can be manufactured separately from the base pipe in the form of a tube severed along its length and subsequently assembled on the base pipe.
    Type: Application
    Filed: August 10, 2006
    Publication date: February 14, 2008
    Inventor: William Mark Richards
  • Patent number: 7275606
    Abstract: The invention contemplates a strainer based upon a four-way, two-position rotary cylindrical plug valve having a hollow plug. The normal entry port for the sealing plug of the plug valve is a circular radial hole passing from the exterior of the plug into the interior cavity of the plug. The normal exit port for the sealing plug is a regular array of small holes across from and coaxial with the normal entry hole. The ports for the valve body are in two pairs positioned at 90° from each other, with the axes of the ports lying in the same transverse plane as the ports of the valve plug.
    Type: Grant
    Filed: May 4, 2007
    Date of Patent: October 2, 2007
    Assignee: Expro Americas, L.P.
    Inventors: Donald Glynn Sims, Michael James Sims, Robert Frank Schmidt, David Anthony Schmidt, John Walton McCaskill
  • Patent number: 7258166
    Abstract: A wellbore screen includes a base pipe including a wall, an inner bore surface and an outer surface, an opening formed through the base pipe wall and a filter cartridge mounted in the opening. In one aspect, the wellbore screen includes an impermeable layer relative to the opening and the impermeable layer may be selected to be substantially impermeable when in a closed position in the opening to passage of fluids through the opening and, the impermeable layer is at least one of (i) selectively openable to permit fluid flow through the opening and (ii) selectively closeable when triggered to close the opening. In another aspect, the opening may include a tapering diameter from one end to the other and the filter cartridge may include an outer diameter formed to reversibly and substantially correspondingly taper relative to the opening to permit a taper lock fit in the opening.
    Type: Grant
    Filed: December 1, 2004
    Date of Patent: August 21, 2007
    Assignee: Absolute Energy Ltd.
    Inventor: Thane Geoffrey Russell
  • Patent number: 6510896
    Abstract: In one aspect of the invention apparatus and methods are provided for completing a wellbore using expandable sand screen. An apparatus including a section of expandable sand screen, and an expanding member is disposed in the wellbore on a tubular run-in string. Thereafter, the expandable sand screen is expanded in a producing area of the wellbore.
    Type: Grant
    Filed: May 4, 2001
    Date of Patent: January 28, 2003
    Assignee: Weatherford/Lamb, Inc.
    Inventors: Jeffrey Bode, Craig Fishbeck, Bill Rouse, Ronnie S. Royer
  • Patent number: 6296055
    Abstract: A combination collar based retrievable drilling fluid filter and wiper with threaded ends for easy inclusion within the drill string, and a through bore for passage of drilling fluids and insertion of a wire line retrievable filter and wiper unit which is concentrically received and supported by the collar. The filter and wiper unit include a filter insert and an elongated wiper carrier. The filter insert is positioned at an upper end of the apparatus and is received by the elongated wiper carrier which is positioned at the lower end of the apparatus. The elongated wiper carrier includes numerous wiper brushes which help remove scale from the interior of the drill string when the filter and wiper unit is retrieved. Electrical wiring passes easily through the apparatus for operation of down hole instruments if desired.
    Type: Grant
    Filed: January 6, 2000
    Date of Patent: October 2, 2001
    Inventor: Kyle Lamar Taylor
  • Patent number: 6250387
    Abstract: A down-hole tool is described for collecting loose debris particles in a well bore. The tool has a body connectable in a work string for actively diverting well fluid through the tool body with at least some of the diverted well fluid being filtered as it passes through the tool by a filter. In a preferred embodiment the tool also comprises a cleaning member, such as a wiper for wiping the casing or liner wall of the well and a trap for trapping filtered debris up stream of the filter.
    Type: Grant
    Filed: January 22, 1999
    Date of Patent: June 26, 2001
    Assignee: SPS-AFOS Group Limited
    Inventors: Mark Carmichael, Paul Howlett
  • Patent number: 5526881
    Abstract: Preperforated tubing is produced by forming a perforation in flat strip of raw material, forming a hollow, cylindrical tube from the flat strip, and placing a removable plug into the perforation, so as to form a fluid-tight seal. A sealing element may be placed into the perforation. The perforation may comprise a hole, into which first and second countersinks may be formed. The sealing element may be placed into the first countersink, and the plug may be placed through the countersinks and the hole, such that the plug's body fills the hole and the plug's head fits within the second countersink.
    Type: Grant
    Filed: June 30, 1994
    Date of Patent: June 18, 1996
    Assignee: Quality Tubing, Inc.
    Inventors: John R. Martin, Martin B. Robertson, Jr.
  • Patent number: 5355956
    Abstract: The flow apertures of a perforated mandrel are temporarily sealed by plugs which are made of a sacrificial material, for example, zinc, aluminum and magnesium. The sacrificial plugs prevent dirty completion fluid from passing through and in and out of the screen as it is run into the hole, thereby protecting the screen from plugging. During the time the screen mandrel is temporarily sealed by the sacrificial plugs, cleaning fluid is circulated through a work string and is returned through the annulus between the screen and the open well bore for removing filter cake, drilling debris and lost circulation material. After the annulus has been cleaned, the annulus is filled with an acid solution or caustic solution, which dissolves the sacrificial plugs. In an alternative embodiment, each sealing plug has a body portion and a stub portion which project into the mandrel bore. The sealing plug body portion is intersected by a vent pocket which is sealed by the stub portion.
    Type: Grant
    Filed: September 28, 1992
    Date of Patent: October 18, 1994
    Assignee: Halliburton Company
    Inventor: Henry L. Restarick
  • Patent number: 5033549
    Abstract: A method for setting a gravel pack in an oil well through tubing situation includes the steps of running a tool body into the well using an electric wireline. The tool body is precisely positioned relative to the surrounding casing, and radially extending members attached to the tool are used to center the tool body in the well bore. Sand control media such as a gravel pack is disposed in the well annulus circumferentially about the tool body using a dump bailer. The use of radially extending members allow the tool body to pass through restricted diameter openings such as in production tubing, fittings, nipples, pressure control device, packers, valves and the like.
    Type: Grant
    Filed: December 27, 1989
    Date of Patent: July 23, 1991
    Assignee: Perf-O-Log, Inc.
    Inventors: Glenn Champeaux, James V. Carisella
  • Patent number: 4811790
    Abstract: A process and apparatus for removing particulate matter from fluid wells where low pH conditions or high temperature exist. The process comprises forming a cylindrical shaped retainer having one closed and one open end. Said retainer has an inner and an outer wall which join with said closed end to provide a space between said walls. An open ended fused porous refractory tube is fitted within said space. Said retainer, with the refractory tube therein, is affixed to a delivery tube. This tube is directed into a formation where said refractory tube is used to control fines or sandflow entrained in fluids obtained from said formation. Being sandwiched between said walls, the refractory tube is protected from shock and is easily removed for cleaning. Said refractory tube is chemically resistant and endures high temperatures encountered during steam-flooding or steam injection.
    Type: Grant
    Filed: August 27, 1987
    Date of Patent: March 14, 1989
    Assignee: Mobil Oil Corporation
    Inventors: Alfred R. Jennings, Jr., Lawrence R. Stowe
  • Patent number: 4750557
    Abstract: A well screen device having body member, screen member attached to the body member, cup member attached to the body member for positioning the device in a fluid flow path, and channel member for conducting screened fluid from the screen. The device's cup member extends outwardly or is extensible outwardly from the device sufficiently to contact the interior surface of the flow path in which the device is emplaced to prevent the flow of unscreened fluid beyond the device. The body member can be solid or hollow with plugged ends. Spacer members can be used to mount the cup member to the body member and to provide a portion of the channel member for conducting the screened fluid past the cup member.
    Type: Grant
    Filed: December 5, 1986
    Date of Patent: June 14, 1988
    Assignee: Well Improvement Specialists, Inc.
    Inventor: Lee Roy C. Gavranovic
  • Patent number: 4003429
    Abstract: A device for facilitating the placement of particulate solids into voids. In particular, the device allows boreholes to be filled with a particulate solid material with a reduction in the amount of turbulence thereby allowing the achieving of the proper density for the particulate material. The device includes an improved mantle mounted adjacent the outlet end of the particulate material supply tube for separating the particulate solid material from liquids and gases. The mantle has a perforated portion in contact with the supply tube and a solid portion in contact with the borehole.
    Type: Grant
    Filed: June 12, 1975
    Date of Patent: January 18, 1977
    Assignee: ICI Australia Limited
    Inventors: David Gilbert Hay, Richard Fox