Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.

Patents

  1. Advanced Patent Search
Publication numberUS3111991 A
Publication typeGrant
Publication dateNov 26, 1963
Filing dateMay 12, 1961
Priority dateMay 12, 1961
Publication numberUS 3111991 A, US 3111991A, US-A-3111991, US3111991 A, US3111991A
InventorsO'neal George E
Original AssigneePan American Petroleum Corp
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Apparatus for repairing well casing
US 3111991 A
Images(2)
Previous page
Next page
Description  (OCR text may contain errors)

Nov. 26, 1963 G. E. ONEAL 3,111,991

APPARATUS FOR REPAIRING WELL CASING Filed May 12. 1961 2 Sheets-Sheet 2 GEORGE E. O'NEAL INVENTOR.

MMQM M ATTORNEY United States Patent 3,111,91 fiEiARATUS iF DR REPATRENG WELL CASENG George E. UNeai, Tulsa, Gide, assignor to Pan American ?etroicum Corporation, Tulsa, Okla, a corporation of Delaware Filed May 12, 1961, Ser. No. 109,742 3 Claims. (6!. res-2s? This invention relates to the art of repairing leaks in well casings. More particularly, it concerns means of making casing repairs wherein a sleeve of a settable patching material is expanded inside the casing at the leak and held in place until setting occurs. The present invention embodies an apparatus which protects the settable material from mechanical damage While the assembly is being lowered into the Well.

In recent years a method has been developed for patchirig holes in well casing by expanding a sleeve containing a settable material against the surface of the casing. Partially polymerized epoxy resins have been found to be particularly suitable, owing to their inertness to well fluids and their property of forming a strong bond with the metal casing. The sleeve of patching material is prepared on an expansible tool, then lowered into the well opposite the leak. The tool is then expanded to press the patching material against the casing, filling the leak with the settable resin. The tool is maintained in its expanded position until the resin had hardened. This method is described in US. Patent 3,028,915, Jennings.

In addition to the resin, the patch usually contains a fabric, such as wire mesh, glass cloth and the like, to increase the strength of the patch as well as to provide permeability for the viscous, resin-forming material during the placement of the patch. Additionally, the fabric retards sagging of the resin-forming material and reduces the erosive effect of the well fluids on the resin-forming material as the tool is lowered into the well.

Centralizers above and below the patch assembly are helpful in preventing damage to the sleeve as it is run in the well; nevertheless, some repair jobs have been unsuccessful for the reason that the partially polymerized material was deformed somewhat while being run. Presumably, the turbulence of well fluids displaced through the narrow annular space between the tool and the casing, as well as the obstructions on the wall of the casing, contributed to the deformation. There is a further possibility that droplets of well fluids become entrained in the partially-polymerized resin, effectively diluting it and weakening the strength of its bond with the casing.

It is therefore an object of my invention to provide apparatus for placing a patch containing a partially-polymerized resin in a well without subjecting the patch to abrasion and erosion by solids and fluids in the well. it is also an object of my invention to prevent contamination of the resinous material with the well fluids. These and other objects may be accomplished by my invention described in greater detail hereafter.

FIGURE 1 is a View in cross-section of the apparatus of my invention as it is being run into the well.

FiGURE 2 is a view in cross-section showing the apparatus as pressure is being applied to hold the patch against the casing.

FIG. 3 shows the apparatus as it might be assembled to run in a well.

Briefly described, the invention comprises a protective cover for the patch sleeve which is slipped off the sleeve at the start of the expansion of the setting tool.

Referring to FIGURE 1 for a description of the apparatus, elastic tube 2t} is covered with patch sleeve 21. The sleeve may comprise layers of glass fibers impregnated with a viscous, partially-polymerized epoxy resin and a curing agent. The glass fabric is folded or wound such that the sleeve may be expanded. The structure of the sleeve, and the application of the sleeve and resin to the elastic tube are described in more detail in US. Patent 3,028,915, Jennings. Upper and lower clamps, 22 and 23, respectively, hold the ends of elastic tube 20 on tubular body 1'3, whereby fluid in the tubular body can pass through perforations 19 and inflate the elastic tube. Housing 16 surrounds the patch sleeve. Ports 18 in the tubular body above upper clamp 22 admit fluid to the space bet-ween head 17 of housing 16 and upper clamp 22. O-ring 24 confines the fluid to the space above the upper clamp. Stop 15 on the tubular body limits the upward travel of housing 16. The tool assembly may be lowered into casing 11 on tubing. Check valve 1-4 in the lower end of the tubular body provides a bypass through the tool for well fluids while the tool is being run in the well.

FIGURE 2 shows the positions of the various components after the patch sleeve has been expanded against the casing and before the setting tool is removed from the well. Housing 16 is held in the upper position with head 17 against stop 1'5 by inflating fluid 25. O-ring '24 seals the space between the upper clamp and the housing. The inflating fluid also holds the elastic tube and patch sleeve expanded until the resin solidifies.

In using my invention to repair a leak in casing, the tool is first assembled at the surface. As shown in FIG- U'RE 3, centralizers 27 and 23 may be installed on tubular body 13 above and below the patch sleeve to keep the tool from dragging against the casing when it is lowered into the well. Also, circulation joint 29 may be installed above the upper centralizer to permit displacement through check valve :14 and tubular body 13 when the tool is run in the well. It is preferable to use a housing which does not fit snugly over the patch sleeve in order that the housing can be displaced with low fluid pressure. A unold release agent may be applied to the inside surface of housing is to prevent bonding of the housing to the resin, in case there is contact between them. Additionally, three or more spacer lugs may be positioned about the lower clamp to hold the patch assembly centralized within the housing. In some instances it may be desirable to provide an O-ring on the lower clamp to exclude well fluids from the patch sleeve while the tool is being run into the well.

With the housing pulled back so that head i7 is against stop 15, the fiabric and resin sleeve may be applied to the elastic tube. The outside diameter of the sleeve may be about one to two inches less than the inside diameter of the casing. The tube is usually coated with a mold-release agent to facilitate its ultimate removal from the well. After the sleeve is in place on the elastic tube, the housing is moved to its position over the sleeve, as shown in FIGURE 1. The tubular body is then connected to tubing and run into the well until the patch assembly is centered over leak 12 in the casing. The circulating valve is then closed. Fluid subsequently pumped down the tubing flows through ports 18. The elasticity of tube 20* prevents any significant inflation of that member until the housing has been removed and comes to rest against stop 15. It is desirable that the housing cove-rs the patch sleeve without touching it to avoid any resistance to displacement of the housing from its running-in position. Thereafter, a pressure about to 500 p.s.i. greater than well pressure is applied to the elastic tube to produce the necessary expansion of the patch sleeve. A small quantity of the resin is usually extruded through the leak, forming button 26, as seen in FIGURE 2. The pressure is held on the tool for a length of time calculated to perunit the setting of the resin on the sleeve. Thereafter,

the pressure is released, permitting the elastic tube to contract and be withdrawn from the Well.

Housing 16 is a cylindrical member having sufficient tensile strength to Withstand the pressure differential which exists across it during the patch setting step. It is desirable that the housing occupy as little space as possible, in order that the patch sleeve can be assembled for minimum expansion during placement. For example, a tool for patching SVz-inch casing can use a housing made of 16-20 gage steel plate where the plate is boiler grade. The stop is positioned on the tubular body a distance above the upper clamp, which enables the housing to clear the patch sleeve, but does not move beyond the O-ring.

While I have described my invention as a tool to be run on tubing, it should be understood that it can also be run on a wire line. In that embodiment the housing would be removed and the patch sleeve expanded by fluid pressure either stored or generated within the tool. For example, a propellant charge of the type used in Wire line stimulation tools might be used. The charge could be detonated by a go-devil, or similar device, introduced at the well head. Examples of this type of equipment are illustrated in US. Patent 2,781,854, Boer et al.; US. Patent 2,842,212, Lebourg; and U8. Patent 2,843,- 042, Andrus. Also, this invention may be used in repairing pipes other than those in Wells. Pipelines sometimes develop leaks in locations not readily accessible, where this could be used to advantage. A leak in an underwater river crossing, for example, could be repaired in this manner. Therefore, my invention should be limited only by the scope of the appended claims when read in light of the present disclosure.

I claim:

1. Apparatus for applying a liner to the inner sunface of a cylinder comprising: a perforated tubular body, an

elastic tube enclosing said perforated body, means for 4 tube and housing, a check valve in the lower end of said tubular body, and a circulating joint above said elastic tube and housing for attaching a tubing string to said tubular body.

2. A tool for applying an expansible settable patch sleeve to the inner surface of a cylinder comprising: a perforated tubular body, an elastic tube enclosing said perforated body, means for sealing the ends of said elastic tube to said perforated body, a housing loosely enclosing said elastic tube, sufiicient space being provided between said elastic tube and said housing for said expansible settable patch sleeve, means for displacing said housing axially along said tubular body to expose said expansible sleeve in operation of the tool, centralizcrs above and below said elastic tube and housing, a check valve in the lower end of said tubular body, and a circulating joint above said elastic tube and housing for attaching a tubing string to said tubular body.

3. The tool of claim 2 in which said means for displacing said housing comprises first and second fiuid seals between said housing and said tubular body to define a variable volume chamber between said housing and said tubular body, a fluid port in said tubular body said port connecting the interior of said variable volume chamber to the interior of said tubular body and means to limit the movement of said housing to a position which uncovers said expansible sleeve While maintaining said second fluid seal.

References Cited in the file of this patent UNITED STATES PATENTS 2,079,830 Baker et al. May 11, 1937 2,232,325 Hamilton Feb. 18, 1941 2,583,316 Bannister Jan. 22, 1952 2,607,425 Taylor Aug. 19, 1952 2,618,345 Tucker Nov. 18, 1952 2,735,496 Wilson Feb. 21, 1956 2,804,148 Schemp et al Aug. 27, 1957 2,812,025 Teague et al Nov. 5, 1957 2,851,1 12 Buck Sept. 9, 1958 2,872,983 Renouf Feb. 10, 1959 2,922,478 Maly Jan. 26, 1960 3,028,915 Jennings Apr. 10, 1962

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US2079830 *Nov 23, 1935May 11, 1937Baker Oil Tools IncApparatus for blanking and cementing off perforated well casings in a well bore
US2232325 *May 18, 1940Feb 18, 1941Hamilton John MWell packer
US2583316 *Dec 9, 1947Jan 22, 1952Bannister Clyde EMethod and apparatus for setting a casing structure in a well hole or the like
US2607425 *Sep 26, 1947Aug 19, 1952Mcgaffey Taylor CorpWell cementing tool
US2618345 *Jul 3, 1948Nov 18, 1952Tucker Alvin WBridge plug and dump bailer
US2735496 *May 28, 1954Feb 21, 1956 L well bridge
US2804148 *May 14, 1953Aug 27, 1957California Research CorpMethod and apparatus for providing a rigid tube in a well bore
US2812025 *Jan 24, 1955Nov 5, 1957Doherty Wilfred TExpansible liner
US2851112 *Oct 2, 1953Sep 9, 1958Phillips Petroleum CoCasing protector
US2872983 *Oct 20, 1955Feb 10, 1959Larkin And Company IncHydraulic cement retaining shoe
US2922478 *Jul 30, 1956Jan 26, 1960Halliburton Oil Well CementingWell packer
US3028915 *Oct 27, 1958Apr 10, 1962Pan American Petroleum CorpMethod and apparatus for lining wells
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3194310 *Mar 6, 1964Jul 13, 1965Loomis Jean DoyleMethod of locating leaks and repairing well tubing in situ
US3297092 *Jul 15, 1964Jan 10, 1967Pan American Petroleum CorpCasing patch
US3358769 *May 28, 1965Dec 19, 1967Berry William BTransporter for well casing interliner or boot
US3364993 *Apr 18, 1967Jan 23, 1968Wilson Supply CompanyMethod of well casing repair
US3419080 *Sep 8, 1967Dec 31, 1968Schlumberger Technology CorpZone protection apparatus
US4501514 *Aug 21, 1981Feb 26, 1985British Underwater Pipeline EngineeringSecuring of structures to the sea-bed
US4971152 *Aug 10, 1989Nov 20, 1990Nu-Bore SystemsMethod and apparatus for repairing well casings and the like
US5295541 *Dec 22, 1992Mar 22, 1994Mobil Oil CorporationCasing repair using a plastic resin
US5377757 *Dec 27, 1993Jan 3, 1995Mobil Oil CorporationLow temperature epoxy system for through tubing squeeze in profile modification, remedial cementing, and casing repair
US5404950 *Mar 19, 1993Apr 11, 1995Mobil Oil CorporationEnhanced oil recovery
US5531272 *Mar 28, 1995Jul 2, 1996Mobil Oil CorporationLow temperature underwater epoxy system for zone isolation, remedial cementing, and casing repair
US6138761 *Feb 24, 1998Oct 31, 2000Halliburton Energy Services, Inc.Apparatus and methods for completing a wellbore
US6263968 *Jan 18, 2000Jul 24, 2001Halliburton Energy Services, Inc.Apparatus and methods for completing a wellbore
US6328113Nov 15, 1999Dec 11, 2001Shell Oil CompanyIsolation of subterranean zones
US6470966May 7, 2001Oct 29, 2002Robert Lance CookApparatus for forming wellbore casing
US6497289Dec 3, 1999Dec 24, 2002Robert Lance CookMethod of creating a casing in a borehole
US6557640Jun 7, 2000May 6, 2003Shell Oil CompanyLubrication and self-cleaning system for expansion mandrel
US6561227May 9, 2001May 13, 2003Shell Oil CompanyWellbore casing
US6568471Feb 24, 2000May 27, 2003Shell Oil CompanyLiner hanger
US6575240Feb 24, 2000Jun 10, 2003Shell Oil CompanySystem and method for driving pipe
US6575250Nov 15, 2000Jun 10, 2003Shell Oil CompanyExpanding a tubular element in a wellbore
US6604763Apr 26, 2000Aug 12, 2003Shell Oil CompanyExpandable connector
US6631759Feb 12, 2002Oct 14, 2003Shell Oil CompanyApparatus for radially expanding a tubular member
US6631760May 9, 2001Oct 14, 2003Shell Oil CompanyTie back liner for a well system
US6631769Feb 15, 2002Oct 14, 2003Shell Oil CompanyMethod of operating an apparatus for radially expanding a tubular member
US6634431Oct 3, 2001Oct 21, 2003Robert Lance CookIsolation of subterranean zones
US6640903Mar 10, 2000Nov 4, 2003Shell Oil CompanyForming a wellbore casing while simultaneously drilling a wellbore
US6675901May 30, 2001Jan 13, 2004Schlumberger Technology Corp.Use of helically wound tubular structure in the downhole environment
US6679334May 30, 2001Jan 20, 2004Schlumberger Technology CorporationUse of helically wound tubular structure in the downhole environment
US6684947Feb 20, 2002Feb 3, 2004Shell Oil CompanyApparatus for radially expanding a tubular member
US6705395Feb 12, 2002Mar 16, 2004Shell Oil CompanyWellbore casing
US6712154Oct 18, 2001Mar 30, 2004Enventure Global TechnologyIsolation of subterranean zones
US6725919Sep 25, 2001Apr 27, 2004Shell Oil CompanyForming a wellbore casing while simultaneously drilling a wellbore
US6739392Sep 25, 2001May 25, 2004Shell Oil CompanyForming a wellbore casing while simultaneously drilling a wellbore
US6745845Dec 10, 2001Jun 8, 2004Shell Oil CompanyIsolation of subterranean zones
US6758278Sep 25, 2001Jul 6, 2004Shell Oil CompanyForming a wellbore casing while simultaneously drilling a wellbore
US6823937Feb 10, 2000Nov 30, 2004Shell Oil CompanyWellhead
US6857473Mar 7, 2002Feb 22, 2005Shell Oil CompanyMethod of coupling a tubular member to a preexisting structure
US6892819Sep 25, 2001May 17, 2005Shell Oil CompanyForming a wellbore casing while simultaneously drilling a wellbore
US6966370Feb 20, 2002Nov 22, 2005Shell Oil CompanyApparatus for actuating an annular piston
US6968618May 12, 2003Nov 29, 2005Shell Oil CompanyExpandable connector
US6976541Jan 22, 2003Dec 20, 2005Shell Oil CompanyLiner hanger with sliding sleeve valve
US7011161Oct 1, 2002Mar 14, 2006Shell Oil CompanyStructural support
US7021390Apr 18, 2003Apr 4, 2006Shell Oil CompanyTubular liner for wellbore casing
US7036582Oct 1, 2002May 2, 2006Shell Oil CompanyExpansion cone for radially expanding tubular members
US7040396Feb 20, 2002May 9, 2006Shell Oil CompanyApparatus for releasably coupling two elements
US7044218Oct 1, 2002May 16, 2006Shell Oil CompanyApparatus for radially expanding tubular members
US7044221Feb 20, 2002May 16, 2006Shell Oil CompanyApparatus for coupling a tubular member to a preexisting structure
US7048062Oct 1, 2002May 23, 2006Shell Oil CompanyMethod of selecting tubular members
US7048067Oct 31, 2000May 23, 2006Shell Oil CompanyWellbore casing repair
US7055608Apr 18, 2003Jun 6, 2006Shell Oil CompanyForming a wellbore casing while simultaneously drilling a wellbore
US7063142Feb 15, 2002Jun 20, 2006Shell Oil CompanyMethod of applying an axial force to an expansion cone
US7077211Jan 29, 2004Jul 18, 2006Shell Oil CompanyMethod of creating a casing in a borehole
US7077213Oct 1, 2002Jul 18, 2006Shell Oil CompanyExpansion cone for radially expanding tubular members
US7082998Jul 30, 2003Aug 1, 2006Halliburton Energy Services, Inc.Systems and methods for placing a braided, tubular sleeve in a well bore
US7100684Dec 18, 2002Sep 5, 2006Enventure Global TechnologyLiner hanger with standoffs
US7100685Jun 13, 2003Sep 5, 2006Enventure Global TechnologyMono-diameter wellbore casing
US7108061Oct 25, 2002Sep 19, 2006Shell Oil CompanyExpander for a tapered liner with a shoe
US7108072Mar 5, 2003Sep 19, 2006Shell Oil CompanyLubrication and self-cleaning system for expansion mandrel
US7121337Jun 1, 2005Oct 17, 2006Shell Oil CompanyApparatus for expanding a tubular member
US7121352Jul 14, 2003Oct 17, 2006Enventure Global TechnologyIsolation of subterranean zones
US7146702Mar 7, 2005Dec 12, 2006Shell Oil CompanyMethod and apparatus for forming a mono-diameter wellbore casing
US7147053Aug 13, 2004Dec 12, 2006Shell Oil CompanyWellhead
US7159665Jul 19, 2002Jan 9, 2007Shell Oil CompanyWellbore casing
US7159667Feb 2, 2004Jan 9, 2007Shell Oil CompanyMethod of coupling a tubular member to a preexisting structure
US7168496Jun 26, 2002Jan 30, 2007Eventure Global TechnologyLiner hanger
US7168499Sep 10, 2004Jan 30, 2007Shell Oil CompanyRadial expansion of tubular members
US7172019Mar 7, 2005Feb 6, 2007Shell Oil CompanyMethod and apparatus for forming a mono-diameter wellbore casing
US7172021Nov 3, 2004Feb 6, 2007Shell Oil CompanyLiner hanger with sliding sleeve valve
US7172024Mar 31, 2003Feb 6, 2007Shell Oil CompanyMono-diameter wellbore casing
US7174964Jul 22, 2003Feb 13, 2007Shell Oil CompanyWellhead with radially expanded tubulars
US7185710Jun 13, 2003Mar 6, 2007Enventure Global TechnologyMono-diameter wellbore casing
US7195061Jun 2, 2005Mar 27, 2007Shell Oil CompanyApparatus for expanding a tubular member
US7195064Aug 13, 2003Mar 27, 2007Enventure Global TechnologyMono-diameter wellbore casing
US7198100Jun 2, 2005Apr 3, 2007Shell Oil CompanyApparatus for expanding a tubular member
US7201223Mar 1, 2005Apr 10, 2007Shell Oil CompanyMethod and apparatus for forming a mono-diameter wellbore casing
US7204007Mar 4, 2005Apr 17, 2007Shell Oil CompanyMethod and apparatus for forming a mono-diameter wellbore casing
US7216701Jun 1, 2005May 15, 2007Shell Oil CompanyApparatus for expanding a tubular member
US7231985Sep 10, 2004Jun 19, 2007Shell Oil CompanyRadial expansion of tubular members
US7234531Sep 19, 2002Jun 26, 2007Enventure Global Technology, LlcMono-diameter wellbore casing
US7240728Sep 25, 2001Jul 10, 2007Shell Oil CompanyExpandable tubulars with a radial passage and wall portions with different wall thicknesses
US7240729Jan 30, 2004Jul 10, 2007Shell Oil CompanyApparatus for expanding a tubular member
US7246667Sep 27, 2004Jul 24, 2007Shell Oil CompanyRadial expansion of tubular members
US7258168Jul 27, 2001Aug 21, 2007Enventure Global Technology L.L.C.Liner hanger with slip joint sealing members and method of use
US7270188Nov 22, 2002Sep 18, 2007Shell Oil CompanyRadial expansion of tubular members
US7275601Sep 28, 2004Oct 2, 2007Shell Oil CompanyRadial expansion of tubular members
US7290605Dec 10, 2002Nov 6, 2007Enventure Global TechnologySeal receptacle using expandable liner hanger
US7290616Jun 26, 2002Nov 6, 2007Enventure Global Technology, L.L.C.Liner hanger
US7299881Sep 27, 2004Nov 27, 2007Shell Oil CompanyRadial expansion of tubular members
US7308755Mar 4, 2005Dec 18, 2007Shell Oil CompanyApparatus for forming a mono-diameter wellbore casing
US7325602Sep 28, 2006Feb 5, 2008Shell Oil CompanyMethod and apparatus for forming a mono-diameter wellbore casing
US7350563Aug 14, 2002Apr 1, 2008Enventure Global Technology, L.L.C.System for lining a wellbore casing
US7350564May 20, 2005Apr 1, 2008Enventure Global Technology, L.L.C.Mono-diameter wellbore casing
US7357188Feb 23, 2000Apr 15, 2008Shell Oil CompanyMono-diameter wellbore casing
US7357190Sep 28, 2004Apr 15, 2008Shell Oil CompanyRadial expansion of tubular members
US7360591Apr 17, 2003Apr 22, 2008Enventure Global Technology, LlcSystem for radially expanding a tubular member
US7363690Mar 2, 2005Apr 29, 2008Shell Oil CompanyMethod and apparatus for forming a mono-diameter wellbore casing
US7363691Mar 3, 2005Apr 29, 2008Shell Oil CompanyMethod and apparatus for forming a mono-diameter wellbore casing
US7363984May 12, 2003Apr 29, 2008Enventure Global Technology, LlcSystem for radially expanding a tubular member
US7377326Aug 18, 2003May 27, 2008Enventure Global Technology, L.L.C.Magnetic impulse applied sleeve method of forming a wellbore casing
US7383889Nov 12, 2002Jun 10, 2008Enventure Global Technology, LlcMono diameter wellbore casing
US7398832May 5, 2003Jul 15, 2008Enventure Global Technology, LlcMono-diameter wellbore casing
US7404444Aug 18, 2003Jul 29, 2008Enventure Global TechnologyProtective sleeve for expandable tubulars
US7410000May 20, 2005Aug 12, 2008Enventure Global Technology, Llc.Mono-diameter wellbore casing
US7416027Aug 13, 2002Aug 26, 2008Enventure Global Technology, LlcAdjustable expansion cone assembly
US7419009Mar 18, 2005Sep 2, 2008Shell Oil CompanyApparatus for radially expanding and plastically deforming a tubular member
US7424918Aug 18, 2003Sep 16, 2008Enventure Global Technology, L.L.C.Interposed joint sealing layer method of forming a wellbore casing
US7434618Jun 1, 2005Oct 14, 2008Shell Oil CompanyApparatus for expanding a tubular member
US7438132Apr 23, 2003Oct 21, 2008Shell Oil CompanyConcentric pipes expanded at the pipe ends and method of forming
US7438133Feb 26, 2004Oct 21, 2008Enventure Global Technology, LlcApparatus and method for radially expanding and plastically deforming a tubular member
US7503393Jan 26, 2004Mar 17, 2009Enventure Global Technology, Inc.Lubrication system for radially expanding tubular members
US7513313Sep 22, 2003Apr 7, 2009Enventure Global Technology, LlcBottom plug for forming a mono diameter wellbore casing
US7516790Jan 9, 2003Apr 14, 2009Enventure Global Technology, LlcMono-diameter wellbore casing
US7552776Oct 13, 2005Jun 30, 2009Enventure Global Technology, LlcAnchor hangers
US7556092Feb 15, 2002Jul 7, 2009Enventure Global Technology, LlcFlow control system for an apparatus for radially expanding tubular members
US7559365Nov 12, 2002Jul 14, 2009Enventure Global Technology, LlcCollapsible expansion cone
US7571774Aug 18, 2003Aug 11, 2009Eventure Global TechnologySelf-lubricating expansion mandrel for expandable tubular
US7603758Feb 14, 2001Oct 20, 2009Shell Oil CompanyMethod of coupling a tubular member
US7665532Oct 19, 2007Feb 23, 2010Shell Oil CompanyPipeline
US7712522Apr 3, 2007May 11, 2010Enventure Global Technology, LlcExpansion cone and system
US7739917Aug 18, 2003Jun 22, 2010Enventure Global Technology, LlcPipe formability evaluation for expandable tubulars
US7740076Mar 4, 2003Jun 22, 2010Enventure Global Technology, L.L.C.Protective sleeve for threaded connections for expandable liner hanger
US7775290Apr 15, 2004Aug 17, 2010Enventure Global Technology, LlcApparatus for radially expanding and plastically deforming a tubular member
US7789148 *Jan 27, 2006Sep 7, 2010Schlumberger Technology CorporationMethod and apparatus for consolidating a wellbore
US7793721Mar 11, 2004Sep 14, 2010Eventure Global Technology, LlcApparatus for radially expanding and plastically deforming a tubular member
US7819185Aug 12, 2005Oct 26, 2010Enventure Global Technology, LlcExpandable tubular
US7886831Aug 6, 2007Feb 15, 2011Enventure Global Technology, L.L.C.Apparatus for radially expanding and plastically deforming a tubular member
US7918284Mar 31, 2003Apr 5, 2011Enventure Global Technology, L.L.C.Protective sleeve for threaded connections for expandable liner hanger
US8240388 *Jul 9, 2010Aug 14, 2012Alan D. BriteSubmergible oil well sealing device and method for sealing underwater oil wells
US20120006558 *Jul 9, 2010Jan 12, 2012Brite Alan DSubmergible oil well sealing device and method for sealing underwater oil wells
US20120006559 *Oct 18, 2010Jan 12, 2012Brite Alan DSubmergible oil well sealing device with valves and method for installing a submergible oil well sealing device and resuming oil production
WO1994021886A1 *Mar 17, 1994Sep 29, 1994Thurman Wayne Ii McphersonMethod for isolating a wellbore formation zone
WO2005012689A1 *Jul 30, 2004Feb 10, 2005Halliburton Energy Serv IncSystem and method for placing a braided, tubular sleeve in a well bore
Classifications
U.S. Classification166/207, 166/277
International ClassificationE21B29/10, E21B29/00
Cooperative ClassificationE21B29/10
European ClassificationE21B29/10