Preventing Flow Into Strainer While Lowering By Blocking Openings Patents (Class 166/296)
  • Patent number: 9428988
    Abstract: 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: Grant
    Filed: June 17, 2011
    Date of Patent: August 30, 2016
    Assignee: MAGNUM OIL TOOLS INTERNATIONAL, LTD.
    Inventor: W. Lynn Frazier
  • Patent number: 9194217
    Abstract: A technique facilitates sand control in a wellbore. A lower completion and an upper completion are run downhole into the wellbore and deployed. The lower completion assembly employs a plurality of packers to isolate well zones. The lower completion assembly also has gravel pack ports which are independently opened to enable gravel packing of each individual zone via a tool run downhole. Additionally, the lower completion assembly has a production port in each zone. A shifting tool is employed to open the production ports and to enable production from the well zones.
    Type: Grant
    Filed: May 26, 2010
    Date of Patent: November 24, 2015
    Assignee: Schlumberger Technology Corporation
    Inventors: Graham Watson, Dinesh Patel, Tom Saunders, Luis Felipe Peixoto, Ricardo Gomez Simancas, Julien Debard
  • Patent number: 8967276
    Abstract: A non-ballistic tubular perforating system includes a tubular having a wall with perforations therethrough, and plugs positioned within the perforations that are configured to dissolve in response to exposure to a first environment thereby creative of a second environment that can dissolve or increase porosity of cement.
    Type: Grant
    Filed: January 18, 2012
    Date of Patent: March 3, 2015
    Assignee: Baker Hughes Incorporated
    Inventors: Oleg A. Mazyar, Bennett M. Richard
  • Patent number: 8919442
    Abstract: A method for coating a filter medium (110) of a sand control screen assembly (100). The method includes providing a sand control screen assembly (100) having a filter medium (110), the filter medium (110) having pores therein, flowing a slurry containing particles through the filter medium (110) of the sand control screen assembly (100) and bridging the particle across the pores to form a particle coating (116) on the filter medium (110), thereby protecting of the filter medium (110) during installation, enabling transportation of reactive materials to a desired wellbore location and enabling circulation of fluid through the sand control screen assembly (100).
    Type: Grant
    Filed: August 9, 2010
    Date of Patent: December 30, 2014
    Assignee: Halliburton Energy Services, Inc.
    Inventor: Travis Thomas Hailey, Jr.
  • Patent number: 8342245
    Abstract: A completion tubular is placed in position adjacent the zone or zones to be fractured and produced. It features preferably sliding sleeve valves one series of which can be put in the wide open position after run in for gravel packing and fracturing zones one at a time or in any desired order. These valves are then closed and another series of valves can be opened wide but with a screen material juxtaposed in the flow passage to selectively produce from one or more fractured zones. An annular path behind the gravel is provided by an offset screen to promote flow to the screened production port. The path can be a closed annulus that comes short of the production port or goes over it. For short runs an exterior screen or shroud is eliminated for a sliding sleeve with multiple screened ports that can be opened in tandem.
    Type: Grant
    Filed: December 13, 2011
    Date of Patent: January 1, 2013
    Assignee: Baker Hughes Incorporated
    Inventors: Bennett M. Richard, Michael H. Johnson, Peter J. Fay
  • Patent number: 8342240
    Abstract: A flow conduit may have at least one orifice, which conduit is in the vicinity of a flow source. The source is at least partially covered (and flow blocked by) an optional temporary coating or barrier (e.g. filter cake). The flow pathway between the orifice and the source is temporarily blocked with a degradable material. A delayed degradation material layer is present over or covering the degradable material. The delayed degradation material layer degrades at a rate slower than the degradable barrier. The degradable material and delayed degradation material layer disintegrate (e.g. via time, temperature, a solvent). The degradable material optionally produces a product that removes the temporary coating. The method is useful in one context of recovering hydrocarbons where the flow conduit is the casing or liner of the well and the flow source is a subterranean reservoir where the coating is filter cake.
    Type: Grant
    Filed: June 23, 2009
    Date of Patent: January 1, 2013
    Assignee: Baker Hughes Incorporated
    Inventors: Bennett M. Richard, Paul M. McElfresh, Chad F. Williams
  • Patent number: 7810567
    Abstract: Methods of making and using wellbore casing are described, one method comprising providing a plurality of flow-through passages in a portion of a casing while the casing is out of hole; temporarily plugging the flow-through passages with a composition while out of hole; running the casing in hole in a wellbore intersecting a hydrocarbon-bearing formation; and exposing the composition to conditions sufficient to displace the composition from the flow-through passages while in hole. Methods of using the casing may include pumping a stimulation treatment fluid through the casing string and into a formation through the flow-through passages in the first casing joint; plugging the flow-through passages in the first casing section; and exposing a second casing joint of the casing string to conditions sufficient to displace the composition from the flow-through passages in the second casing joint.
    Type: Grant
    Filed: June 27, 2007
    Date of Patent: October 12, 2010
    Assignee: Schlumberger Technology Corporation
    Inventors: John Daniels, George Waters, Mark Norris, J. Ernest Brown, Ian D. Bryant, Kevin Mauth, Jason Swaren
  • Publication number: 20100230103
    Abstract: A plug for insertion into a perforation in a liner or tubular. The plug comprises a base portion and one or more extendible portions. The base portion is securable to and receivable within the perforation. The base portion and the one or more extendible portions seal the perforation in the liner. The one or more extendible portions have a retracted position and an extended position such that when in their extended position the one or more extendible portions extend outwardly from the base portion and outwardly from the exterior surface of the liner. The plug including one or more shear pins retaining such extendible portions in said retracted position until sufficient force is applied to shear said shear pins.
    Type: Application
    Filed: July 21, 2009
    Publication date: September 16, 2010
    Applicant: Reservoir Management Inc.
    Inventor: Perry Parker
  • Patent number: 7793714
    Abstract: A fracing and production configuration including a tubular having a plurality of openings. The openings having a beaded matrix therein, a valve sub in operable communication with the tubular and an underminable plugging material plugging each of the beaded matrixes. A method for fracing and producing from a wellbore in a formation.
    Type: Grant
    Filed: June 23, 2008
    Date of Patent: September 14, 2010
    Assignee: Baker Hughes Incorporated
    Inventor: Michael H. Johnson
  • 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: 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: 7784543
    Abstract: A tubing component for use in a downhole environment including a tubular having a plurality of openings therein and a plurality of beaded matrixes disposed in the plurality of openings the beaded matrixes being configured to be pluggable in situ in the downhole environment. A method for controlling flow in a wellbore.
    Type: Grant
    Filed: July 11, 2008
    Date of Patent: August 31, 2010
    Assignee: Baker Hughes Incorporated
    Inventor: Michael H. Johnson
  • Patent number: 7775277
    Abstract: An expandable liner assembly including an expandable tubular, a plurality of openings in the tubular, and a plurality of beaded matrixes in operable communication with the openings. A method for completing a section of wellbore.
    Type: Grant
    Filed: June 24, 2008
    Date of Patent: August 17, 2010
    Assignee: Baker Hughes Incorporated
    Inventor: Michael H. Johnson
  • Patent number: 7730949
    Abstract: A technique is provided for performing a well treatment operation. A completion assembly is constructed with a tubular member designed to maintain pressure integrity above a given well treatment zone. The completion assembly and a service tool can be moved downhole for well treatment operations in one or more well zones. A converter tool is utilized to selectively form openings through a wall of the tubular member to enable flow following completion of the well treatment in a lower zone.
    Type: Grant
    Filed: September 20, 2007
    Date of Patent: June 8, 2010
    Assignee: Schlumberger Technology Corporation
    Inventors: Thibaut Guignard, John R. Whitsitt
  • 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: 7441595
    Abstract: A method and apparatus for forming multiple lateral passages from a wellbore into a subsurface earth formation to facilitate enhancement of the production of oil, gas, heavy oil or minerals from the formation. A plurality of lateral passages are formed from a wellbore into a subsurface formation through the use of a single-run passage forming tool to minimize rig time and associated costs. A downhole indexing tool is positioned downhole and has indexing sections for positioning and indexing of a downhole well service tool and establishes precise radial orientation and location of the tool for its well servicing operation. Sequential unidirectional rotational indexing is accomplished by an indexing control stinger having a J-slot indexing system defining a circumferential slot section defining a desired number of indexing positions that are sequenced responsive to linear reciprocating movement of the indexing control stinger.
    Type: Grant
    Filed: February 7, 2006
    Date of Patent: October 28, 2008
    Inventor: Henk H. Jelsma
  • Patent number: 7383886
    Abstract: A device and a method for selective control of fluid flow between a flow pipe (14) of a well and surrounding rocks (12). The flow pipe (14) is provided with at least one flow-through particle filter (16) placed externally on the flow pipe (14) and between the flow pipe (14) and the rocks (12). The filter (16) is connected in a flow-through manner to the flow pipe (14) via a flow channel (38). The characteristic of the invention is that the flow pipe (14) is provided with an imperforated pipe wall inside of and vis-a-vis said flow channel (38) when installing the flow pipe (14) in the well. Then the flow pipe (14) may be perforated selectively inside of the flow channel (38) for one or several filters (16) along the flow pipe (14), whereupon fluids may flow through the flow channel (38) and the filter (16) via perforation apertures (54) in the flow pipe (14).
    Type: Grant
    Filed: June 15, 2004
    Date of Patent: June 10, 2008
    Assignee: Reslink AS
    Inventors: Arthur H. Dybevik, Svein Kvernstuen
  • Patent number: 7373983
    Abstract: The present invention is directed to a method and apparatus for providing a pathway for fluid communication through a tubing-retrievable subsurface safety valve (TRSSV). The method and apparatus are designed to be deployed within a hydrocarbon wellbore after the TRSSV has failed. The apparatus is a milling tool that is run into the wellbore and landed within the TRSSV. The milling tool comprises a housing system, a cutting system, a drive system, and an actuating system. In operation, the milling tool is landed within the housing of the TRSSV. Thereafter, the actuating system is initiated. The actuating system actuates the drive system, which in turn drives the cutting system. In one arrangement, the cutting system includes blades for shaving the pressure containing body of the TRSSV, thereby forming a pathway for fluid communication between a hydraulic fluid line and a bore of the safety valve.
    Type: Grant
    Filed: March 13, 2007
    Date of Patent: May 20, 2008
    Assignee: Weatherford/Lamb, Inc.
    Inventors: Cecil G. McGavern, III, Adrian V. Saran, Winfield M. Sides, III
  • Patent number: 7059410
    Abstract: A method for reducing longitudinal flow of fluids through an annular space surrounding a permeable well tubular, such as a slotted liner or a sandscreen, in an inflow region of an oil and/or gas production well having: arranging a series of collapsed resilient sealing rings at regular longitudinal intervals around the permeable tubular before lowering the tubular into the well by means of tape and/or a binder which dissolves downhole; placing the tubular in the inflow region of the well; and allowing the tape and/or binder to dissolve, thereby allowing the resilient sealing rings to expand radially in the annular space surrounding the permeable tubular.
    Type: Grant
    Filed: May 31, 2001
    Date of Patent: June 13, 2006
    Assignee: Shell Oil Company
    Inventors: Olaf Jean Paul Bousche, Douwe Johannes Runia
  • Patent number: 7032663
    Abstract: This invention relates to improved methods for completing wells in unconsolidated subterranean zones. More specifically, the present invention relates to cement compositions useful in subterranean applications, and more particularly, to permeable cement compositions and methods for forming consolidated permeable cement masses in well bores to prevent sand influx into the well bores with produced fluids. In one embodiment, the permeable cement compositions of the present invention comprise a hydraulic cement, water, and a degradable material capable of undergoing an irreversible degradation downhole.
    Type: Grant
    Filed: June 27, 2003
    Date of Patent: April 25, 2006
    Assignee: Halliburton Energy Services, Inc.
    Inventor: Philip D. Nguyen
  • Patent number: 6978840
    Abstract: A well screen assembly (70) with a controllable variable flow area. The well screen assembly (70) comprises an outer tubular section (80), the outer tubular section (80) containing a first plurality of openings (90) disposed in a pattern (100) throughout a length “L” of the outer tubular section (80); an inner tubular section (110) that is disposed within the outer tubular section (80), the inner tubular section (110) containing a second plurality of openings (120) disposed in the same pattern (100) throughout a length L of the inner tubular section (110), and when the first plurality of openings (90) and second plurality of openings (120) align, the openings form a plurality of passageways (130) through the outer tubular section (80) and inner tubular section (110). The well screen assembly (70) may therefore, vary the flow of production fluid through it and upwards through the interior of a production tubing (40).
    Type: Grant
    Filed: February 5, 2003
    Date of Patent: December 27, 2005
    Assignee: Halliburton Energy Services, Inc.
    Inventor: William D. Henderson
  • Patent number: 6932159
    Abstract: A screen to be expanded when placed downhole is disclosed. The screen is delivered to the location with a cover that blocks access to the screen from well fluids. Circulation or reverse circulation can be undertaken with no appreciable flow through the screen due to placement of the cover. In one embodiment the cover has slits that open to be diamond shapes upon expansion of the underlying screen. In another embodiment, the openings are created by shapes that have a weakened edge that, as a result of expansion break off to create available openings for flow.
    Type: Grant
    Filed: August 28, 2002
    Date of Patent: August 23, 2005
    Assignee: Baker Hughes Incorporated
    Inventor: Knut A. Hovem
  • Publication number: 20040261993
    Abstract: This invention relates to improved methods for completing wells in unconsolidated subterranean zones. More specifically, the present invention relates to cement compositions useful in subterranean applications, and more particularly, to permeable cement compositions and methods for forming consolidated permeable cement masses in well bores to prevent sand influx into the well bores with produced fluids. In one embodiment, the permeable cement compositions of the present invention comprise a hydraulic cement, water, and a degradable material capable of undergoing an irreversible degradation downhole.
    Type: Application
    Filed: June 27, 2003
    Publication date: December 30, 2004
    Inventor: Philip D. Nguyen
  • Patent number: 6745843
    Abstract: A completion assembly for use in a lateral well bore has a base pipe with a plurality of holes through the sidewall of the base pipe. Flow through the holes is regulated to produce an influx difference between the ends of the base pipe. Flow can be regulated by variably spacing or sizing the holes. Flow can also be regulated by selectively inserting a rod between adjacent splines located on the base pipe to cover and block the flow through certain holes in the base pipe. Flow can also be regulated using a rotatable sleeve adjacent to the base pipe such that rotation of the sleeve brings the holes and openings in the pipe and sleeve, respectively, into and out of alignment. A filter can be used to filter sand and other particulates. An erosion inhibitor can be used to extend the useful life of the assembly.
    Type: Grant
    Filed: January 22, 2002
    Date of Patent: June 8, 2004
    Assignee: Schlumberger Technology Corporation
    Inventors: Craig D. Johnson, Matthew R. Hackworth, David W. Wang
  • Patent number: 6695054
    Abstract: A particulate screen suitable for use in a wellbore. The particulate screen is expandable and may be at least partially formed of a bistable tubular. Also, a filter media may be combined with the bistable tubular to limit influx of particulates.
    Type: Grant
    Filed: December 12, 2001
    Date of Patent: February 24, 2004
    Assignee: Schlumberger Technology Corporation
    Inventors: Craig D. Johnson, Matthew R. Hackworth, Patrick W. Bixenman
  • Publication number: 20040003925
    Abstract: A method of providing a protected lateral well junction is disclosed. A milling assembly and whipstock are run into a cased primary wellbore to a desired depth and orientation. An anchor and packer are set. A window is milled in the cased borehole and a lateral rat hole is drilled. The milling assembly is removed, and the window and rat hole are filled with a protecting material, thereby covering any rough or jagged edges of the window. A new hole is drilled in the protecting material, through the window and into the lateral rathole, slightly offset from the window edges that are isolated by the remaining protecting material.
    Type: Application
    Filed: May 16, 2003
    Publication date: January 8, 2004
    Inventor: Praful Desai
  • Patent number: 6543539
    Abstract: A perforated casing may be placed within contaminated soil. Perforations within the casing may be covered during insertion of the casing into the ground. Covering the perforations may inhibit plugging of the perforations during installation. Covering the perforations may also inhibit worker exposure to contaminant dust or vapors during insertion of the casing into the ground. The covering for the perforations in a casing may be plugs that are placed or formed in the casing perforations. Alternately, the covering for the perforations may be a sleeve placed adjacent to the perforations. After installation of the casing, heating or chemically treating the perforation coverings may remove the coverings and allow insertion or removal of fluids and vapor through the casing.
    Type: Grant
    Filed: November 20, 2000
    Date of Patent: April 8, 2003
    Assignee: Board of Regents, The University of Texas System
    Inventors: Harold J. Vinegar, George L. Stegemeier
  • Patent number: 6398960
    Abstract: A method for remediating aquifers and groundwater contaminated, for example, by toxic halogenated organic compounds, certain inorganic compounds, and oxidized heavy metals and radionuclides, using the introduction of an innocuous oil, preferably an edible, food grade oil such as soybean oil, formulated into a microemulsion preferably by mixing with a natural food-grade emulsifier (such as lecithin) and water.
    Type: Grant
    Filed: October 31, 2000
    Date of Patent: June 4, 2002
    Assignees: Solutions Industrial & Environmental Services, Inc., Terra Systems, Inc.
    Inventors: Robert C. Borden, Michael D. Lee
  • Patent number: 6397950
    Abstract: An apparatus and method for removing a frangible rupture disc or other frangible device from a wellbore casing. The casing has a special casing section defining a plurality of holes therethrough. Rupturable glass ceramic discs or inserts are disposed in the holes and retained therein. The glass ceramic discs or inserts are adapted to withstand fluid differential pressure normally present in the wellbore but are rupturable in response to impingement by a pressure wave thereon. The pressure wave is provided by a pressure wave generating device positionable in the casing string adjacent to the holes in the special casing section. The pressure generative device may generate a pressure pulse or an acoustical wave. Methods of perforating a well casing using a pressure pulse or an acoustical wave are also disclosed.
    Type: Grant
    Filed: July 31, 2000
    Date of Patent: June 4, 2002
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Steven G. Streich, James C. Tucker, James R. Birchak, Paul F. Rodney, Neal G. Skinner
  • Patent number: 6394185
    Abstract: Coatings for well screens that protect the screens from damage as they are inserted into the wellbore and once in the well, release reactive materials to react with and degrade potentially plugging materials such as drill solids, fluid filtercakes, fluid loss additives, and drilling fluids. The coatings can be specifically designed for individual well conditions and are comprised of a binder that either melts or dissolves within the wellbore and one or more reactive materials such as acids, enzymes, surfactants, chelants, oxidizers or free radical generators and the like which are released into the screen and the near wellbore area and which are effective in degrading or dissolving materials which could potentially plug the screen.
    Type: Grant
    Filed: July 27, 2000
    Date of Patent: May 28, 2002
    Inventor: Vernon George Constien
  • Patent number: 6390195
    Abstract: Methods and compositions for forming permeable cement sand screens in well bores are provided. The compositions are basically comprised of a hydraulic cement, a particulate cross-linked gel containing an internal breaker which after time causes the gel to break into a liquid and water present in an amount sufficient to form a slurry.
    Type: Grant
    Filed: October 27, 2000
    Date of Patent: May 21, 2002
    Assignee: Halliburton Energy Service,s Inc.
    Inventors: Philip D. Nguyen, Ronald J. Crook, Johnny A. Barton, David L. Brown
  • Patent number: 6095247
    Abstract: An apparatus for opening perforations in a casing string. The casing string has a special casing section defining a plurality of holes therethrough. Rupturable ceramic discs or inserts are disposed in said holes and retained therein. The ceramic discs or inserts are adapted to withstand the fluid differential pressures normally present in the wellbore but are rupturable in response to impact by a mild explosive charge. The explosive charge is provided by detonating a length of det-cord disposed in the casing string adjacent to the holes in the special casing section. A method of perforating using this apparatus is also disclosed.
    Type: Grant
    Filed: November 21, 1997
    Date of Patent: August 1, 2000
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Steven G. Streich, Mike Navarette, Jimmie D. Weaver, Richard L. Giroux, David D. Szarka
  • Patent number: 5957205
    Abstract: A conventional screened liner is modified to enable fluid circulation through its length when working it toward a landing position in a horizontal wellbore. At surface, a sleeve of heat-liquifiable sealant (such as wax or tar) is formed internally in each perforated liner joint to blind the liner openings. The sleeve may have a central longitudinal bore formed therethrough or alternatively the sleeve is bored out to fully re-open the joint bore. In either case, the bore through the blinded joints enable circulating the liner into the wellbore. Once the liner is in place, the sealant can be removed by circulating steam past it to liquify it. By providing bore-forming blinded screen joints, it is now possible to circulate through the entire length of liner to remove sand blockages without reversing fluid flow through the liner openings.
    Type: Grant
    Filed: August 18, 1997
    Date of Patent: September 28, 1999
    Assignee: Alberta Oil Sands Technology and Research Authority
    Inventors: Calvin G. Bohme, Richard W. Luhning, Gordon M. Trefenanko
  • Patent number: 5857521
    Abstract: A retrievable screen apparatus provides increased filtration in a retrievable screen disposed within a receptacle, the receptacle being positioned in a subterranean well. The receptacle has a lower filtration screen attached thereto for filtering larger particles, such as gravel and proppant, from fluid flow within the well. Thus, the retrievable screen may be retrieved and replaced, leaving the receptacle operatively positioned in the well.
    Type: Grant
    Filed: September 11, 1997
    Date of Patent: January 12, 1999
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Colby M. Ross, Ralph H. Echols, Jim Venditto
  • Patent number: 5842528
    Abstract: A method and apparatus for drilling and completing a bore hole is disclosed. Generally, the method comprises the steps of positioning a workstring in the well, with the workstring having attached thereto a bottom hole assembly. The bottom hole assembly may contain a bit for rotary drilling a bore hole; and, a drilling motor, operably associated with the bit, for effecting rotation to said drilling means. The method further includes the steps of circulating a fluid in the workstring so that the motor effects rotation of the bit means; and, drilling the bore hole through a target reservoir. In one embodiment, the workstring string is a production string, and the production string is attached to an isolation safety valve member for isolating the well and the bore hole from pressure.
    Type: Grant
    Filed: November 22, 1994
    Date of Patent: December 1, 1998
    Inventors: Michael H. Johnson, Daniel J. Turick
  • Patent number: 5762137
    Abstract: A retrievable screen apparatus provides increased filtration in a retrievable screen disposed within a receptacle, the receptacle being positioned in a subterranean well. The receptacle has a lower filtration screen attached thereto for filtering larger particles, such as gravel and proppant, from fluid flow within the well. Thus, the retrievable screen may be retrieved and replaced, leaving the receptacle operatively positioned in the well.
    Type: Grant
    Filed: April 29, 1996
    Date of Patent: June 9, 1998
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Colby M. Ross, Ralph H. Echols, Jim Venditto
  • Patent number: 5667023
    Abstract: A method and apparatus for drilling and completing a bore hole are disclosed. The method comprises positioning a work string in the well, with a bottom hole assembly attached. The bottom hole assembly can include a drill bit, a drilling motor, orientation instrumentation, and a completion assembly. A fluid is circulated to drive the drill bit to drill the well to a target formation. Then, the completion assembly is used to produce fluids from the formation. Gravel packing can also be performed with the bottom hole assembly.
    Type: Grant
    Filed: June 19, 1996
    Date of Patent: September 16, 1997
    Assignee: Baker Hughes Incorporated
    Inventors: John W. Harrell, Michael H. Johnson, Daniel J. Turick, Larry A. Watkins
  • Patent number: 5667011
    Abstract: The invention relates to a method of creating a casing in a borehole formed in an underground formation. The method comprises the steps of (a) installing a tubular liner in the borehole, the liner being radially expandable in the borehole whereby the liner in its radially expanded position has a plurality of openings which are overlapping in the longitudinal direction of the liner, (b) radially expanding the liner in the borehole, and (c) either before or after step (b), installing a body of hardenable fluidic sealing material in the borehole so that the sealing material fills said openings and thereby substantially closes said openings. The sealing material is selected so as to harden in said openings and thereby to increase the compressive strength of the liner.
    Type: Grant
    Filed: January 16, 1996
    Date of Patent: September 16, 1997
    Assignee: Shell Oil Company
    Inventors: Daljit Singh Gill, Wilhelmus Christianus Maria Lohbeck, Robert Bruce Stewart, Jacobus Petrus Maria Van Vliet
  • Patent number: 5650379
    Abstract: A process and composition are provided for permeability reduction in a hydrocarbon-bearing formation to improve hydrocarbon recovery therefrom. The process includes placement of a crosslinked polymer gel in the treatment region preceded by surface preparation of a gelation solution which is the gel precursor. The gelation solution contains a crosslinkable polymer, a chromium(III)/carboxylate complex crosslinking agent, a carboxylate salt delaying agent and an aqueous solvent. The gel is placed in the treatment region by injecting the gelation solution into a well bore in fluid communication with the formation, displacing it into the desired treatment region and gelling the solution to completion forming the permeability-reducing gel in situ. The gelation rate is retarded in a controlled manner by adjusting the composition or concentration of the delaying agent in the gelation solution.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: July 22, 1997
    Assignee: Marathon Oil Company
    Inventor: Robert D. Sydansk
  • Patent number: 5622211
    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 7, 1995
    Date of Patent: April 22, 1997
    Assignee: Quality Tubing, Inc.
    Inventors: John R. Martin, Martin B. Robertson, Jr.
  • Patent number: 5598890
    Abstract: The invention involves an assembly, specifically beneficial in deviated well-bores, which allows running into the wellbore with the complete completion assembly. The completion assembly includes one or more screens which may be pre-packed. Initially, a material which sets to form a permeable mass is deposited in the annular space outside the screens. After such material is deposited, cement or other sealing material is pumped into the annular space above the screens to complete the completion process. As a result, in one trip the deviated wellbore is completed with the permeable material deposited outside the screen or screens and cement being disposed in the annular space above the permeable material. Production can then begin.
    Type: Grant
    Filed: October 23, 1995
    Date of Patent: February 4, 1997
    Assignee: Baker Hughes Inc.
    Inventors: Bennett M. Richard, Benn A. Voll
  • Patent number: 5579844
    Abstract: A well completion system which includes a production packer assembly, production tubing sealed to the packer assembly, and an isolation assembly coupled with the packer assembly. The isolation assembly includes an isolation pipe received within a production screen and sealed at both ends therewith. The isolation pipe defines at least one port and carrying a moveable sleeve defining at least one aperture. The sleeve is moveable between an open position in which the port and aperture are in communication to permit fluid flow therethrough, and a closed position in which the port and aperture are not in communication and fluid flow is prevented. The isolation system is also coupled with a wash down shoe and a shearable ball seat.
    Type: Grant
    Filed: February 13, 1995
    Date of Patent: December 3, 1996
    Assignee: OSCA, Inc.
    Inventors: Wade Rebardi, Donald H. Michel
  • 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: 5469918
    Abstract: Cement plugs are positively placed in a wellbore by placement of a bridge plug immediately beneath the depth where the plug is intended and release of a seal allowing flow of cement slurry from a slurry containment tube as the tube is withdrawn to cause a positive piston-like displacement of the fluid in the wellbore.
    Type: Grant
    Filed: September 16, 1994
    Date of Patent: November 28, 1995
    Assignee: Texaco Inc.
    Inventor: John P. Haberman
  • Patent number: 5456317
    Abstract: The perforations of a pre-perforated tubular are plugged with interior protruding, mostly hollow plugs which temporarily seal the perforations. The plugs are capable of withstanding a significant pressure differential and, when combined with an insert, forming a flotation cavity containing a buoyant fluid. The temporarily sealed tubular is then run into a wellbore, the tubular is set, and the plugs are unsealed. The unsealing is preferably accomplished by drilling out the interior protruding portions. Solid baffles may also be placed in the string to limit buoyant fluid loss in the event of premature unsealing in another embodiment of the invention.
    Type: Grant
    Filed: January 28, 1994
    Date of Patent: October 10, 1995
    Inventors: John L. Hood, III, J. David Payne
  • 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: 5322136
    Abstract: An air percussion hammer drill is disclosed for operation in an earthen formation. The air compression hammer mechanism comprises a piston that reciprocates while simultaneously rotating within its housing. A hammer drill bit slidably keyed to the bottom of the piston transfers the impact energy to the formation and rotates during operation independent of an attached drill string.
    Type: Grant
    Filed: July 17, 1992
    Date of Patent: June 21, 1994
    Assignee: Smith International, Inc.
    Inventors: Huy D. Bui, Michael S. Oliver
  • Patent number: 5310000
    Abstract: The flow apertures of a perforated mandrel are temporarily sealed by a foil covering sheet which is made of a sacrificial material, for example, zinc, aluminum and magnesium The sacrificial covering sheet prevents 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 foil covering, cleaning fluid is circulated through the 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 foil and opens the base pipe perforations.
    Type: Grant
    Filed: September 28, 1992
    Date of Patent: May 10, 1994
    Assignee: Halliburton Company
    Inventors: Bryant A. Arterbury, Holley M. Cornette
  • Patent number: RE40448
    Abstract: A method for remediating aquifers and groundwater contaminated, for example by toxic halogenated organic compounds, certain inorganic compounds, and oxidized heavy metals and radionuclides, using the introduction of an innocuous oil, preferably an edible, food grade oil such as soybean oil, formulated into a microemulsion preferably by mixing with a natural food-grade emulsifier (such as lecithin) and water.
    Type: Grant
    Filed: June 4, 2004
    Date of Patent: August 5, 2008
    Assignees: Solutions-IES, Inc., Terra Systems, Inc.
    Inventors: Robert C. Borden, Michael D. Lee
  • Patent number: RE40734
    Abstract: A method for remediating aquifers and groundwater contaminated, for example, by toxic halogenated organic compounds, certain inorganic compounds, and oxidized heavy metals and radionuclides, using the introduction of an innocuous oil, preferably an edible, food grade oil such as soybean oil, formulated into a microemulsion preferably by mixing with a natural food-grade emulsifier (such as lecithin) and water.
    Type: Grant
    Filed: June 29, 2006
    Date of Patent: June 16, 2009
    Assignee: Solutions-IES, Inc.
    Inventors: Robert C. Borden, Michael D. Lee