Cement Or Consolidating Material Contains Inorganic Water Settable And Organic Ingredients Patents (Class 166/293)
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Patent number: 7717176Abstract: A permeable cement composition including an aqueous slurry of a hydraulic cement which is based upon a water-immiscible dispersed fluid phase and a hollow particulate material. The hollow particulate material breaks down in the presence of the cement so as to leave voids which together with the dispersed phase create a permeable structure in the cement.Type: GrantFiled: April 20, 2006Date of Patent: May 18, 2010Assignee: Schlumberger Technology CorporationInventors: Samuel Danican, Bruno Drochon, Simon James, Beilin Ding
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Publication number: 20100116497Abstract: A method of servicing a wellbore comprising placing a sealant composition comprising solid latex into the wellbore.Type: ApplicationFiled: November 20, 2009Publication date: May 13, 2010Applicant: HALLIBURTON ENERGY SERVICES, INC.Inventors: B. Raghava Reddy, Ronald E. Sweatman, Christopher L. Gordon
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Patent number: 7712530Abstract: A pre-stressed annular sealant and method of creating a durable seal in a well bore annulus which is based on hydraulic cement that is designed to be easily pumped and placed into a casing-wellbore annulus, to set into a hardened mass, and to then undergo post-set crystal growth and phase changes in the crystalline matrix to combat inherent volumetric shrinkage and to create internally-generated compressive stress in the cement matrix. This internally-generated compressive pre-stressing compensates for tensile stress induced by well operations. The tensile stress must be greater in magnitude than the magnitude of the compressive pre-stress plus the magnitude of the cement's tensile strength before the cement sheath will fail in tension. This expansion and pre-stressing also creates significantly higher shear bond strengths than those developed with ordinary hydraulic cement.Type: GrantFiled: August 9, 2007Date of Patent: May 11, 2010Assignee: Superior Energy Services, L.L.C.Inventors: Kevin Edgley, Larry Watters, Fred Sabins, Paul Sonnier
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Patent number: 7703522Abstract: Unconsolidated formation sand in the near wellbore region may be uniformly consolidated using a system including a sodium silicate solution and a hardener, such as at least one dialkyl ester of a dicarboxylic acid. Subsequently, a low concentration acid, such as hydrofluoric (HF) acid, is pumped through and into the consolidated sand to create channels or passageways to connect the formation hydrocarbons with the wellbore for production of the hydrocarbons through the wellbore. Hydrofluoric acid may be generated in situ by hydrolyzing a substance to hydrofluoric acid where the substance may include ammonium bifluoride, ammonium fluoride, alkali metal fluorides, alkali metal bifluorides, transition metal fluorides, and the like, and mixtures thereof. The acid may instead or additionally include organic acids and other mineral acids.Type: GrantFiled: May 19, 2008Date of Patent: April 27, 2010Assignee: Baker Hughes IncorporatedInventor: Tianping Huang
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Patent number: 7703521Abstract: Methods and apparatus for forming a fluid for use within in a subterranean formation including crosslinking a polymer along the surface of microspheres in a water-in-water emulsion and introducing the microspheres into the subterranean formation. Methods and apparatus for forming a fluid for use within in a subterranean formation including crosslinking a polymer along the surface of microspheres in a water in water emulsion, isolating the microspheres from the emulsion, and introducing the microspheres into the subterranean formation. Methods and apparatus for forming a fluid to treat a subterranean formation including introducing a crosslinkable polymer, partitioning agent, and crosslinker into a solvent, crosslinking the crosslinkable polymer, isolating beads of the crosslinkable polymer from the partitioning agent, introducing the beads into a fluid for treating a subterranean formation.Type: GrantFiled: January 14, 2009Date of Patent: April 27, 2010Assignee: Schlumberger Technology CorporationInventors: Philip F. Sullivan, Gary John Tustin, Don Williamson, Hemant K. Ladva
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Publication number: 20100096135Abstract: Disclosed embodiments relate to well treatment fluids and methods that utilize nano-particles. Exemplary nano-particles are selected from the group consisting of particulate nano-silica, nano-alumina, nano-zinc oxide, nano-boron, nano-iron oxide, and combinations thereof. Embodiments also relate to methods of cementing that include the use of nano-particles. An exemplary method of cementing comprises introducing a cement composition into a subterranean formation, wherein the cement composition comprises cement, water and a particulate nano-silica. Embodiments also relate to use of nano-particles in drilling fluids, completion fluids, stimulation fluids, and well clean-up fluids.Type: ApplicationFiled: April 20, 2009Publication date: April 22, 2010Applicant: Halliburton Energy Services, IncInventors: Craig W. Roddy, Jiten Chatterji, Roger Cromwell
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Publication number: 20100089582Abstract: A variety of methods and compositions are disclosed, including, in one embodiment, a method of cementing comprising introducing a cement composition into a subterranean formation, wherein the cement composition comprises a Sorel cement and an amine phosphono retarder; and allowing the cement composition to set.Type: ApplicationFiled: October 14, 2008Publication date: April 15, 2010Inventors: Ashok K. Santra, Rocky Fitzgerald
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Patent number: 7694738Abstract: A method of servicing a wellbore in contact with a subterranean formation, comprising: placing a sealant composition comprising a cementitious material and a cationic latex into the wellbore.Type: GrantFiled: December 1, 2005Date of Patent: April 13, 2010Assignee: Halliburton Energy Services, Inc.Inventors: B. Raghava Reddy, Samuel J. Lewis, Ashok K. Santra, Anthony V. Palmer
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Patent number: 7690427Abstract: Methods of isolating portions of a subterranean formation adjacent to a highly deviated well bore having a downstream end and an upstream end and substantially filling a first zone with a sand plug comprising lightweight particulates having a specific gravity of below about 1.25 so as to substantially isolate the first zone from the second zone wherein the first zone is located closer to the downstream end of the wellbore than the second zone.Type: GrantFiled: March 7, 2008Date of Patent: April 6, 2010Assignee: Halliburton Energy Services, Inc.Inventor: Keith A. Rispler
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Patent number: 7690429Abstract: In an embodiment, a sealant composition comprising a swelling agent is displaced into a wellbore penetrating a subterranean formation to maintain isolation of the formation. The sealant composition may be displaced into a permeable zone through which fluid can undesirably migrate. In another embodiment, the sealant composition comprising the swelling agent is displaced into the wellbore to reduce a loss of a fluid to the formation during circulation of the fluid in the wellbore. The fluid may be, for example, a drilling fluid, a secondary sealant composition, a fracturing fluid, or combinations thereof. The sealant composition may be displaced into a flow pathway through which fluid can undesirably migrate into the formation. In both embodiments, the swelling agent contacts water such that it swells and thereby reduces fluid flow through the permeable zone/flow pathway. The swelling agent may comprise a crosslinked co-polymer.Type: GrantFiled: October 21, 2004Date of Patent: April 6, 2010Assignee: Halliburton Energy Services, Inc.Inventors: Prentice G. Creel, B. Raghava Reddy, Edlon D. Dalrymple
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Patent number: 7687440Abstract: A wellbore sealant composition comprising a cementitious material and a cationic latex into the wellbore.Type: GrantFiled: December 1, 2005Date of Patent: March 30, 2010Assignee: Halliburton Energy Services, Inc.Inventors: B. Raghava Reddy, Samuel J. Lewis, Ashok K. Santra, Anthony V. Palmer
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Publication number: 20100065273Abstract: The invention relates to the use of one or more water-soluble reactive liquid component capable of subsequent polymerization or cross-linking to form a solid to improve the zonal isolation and alleviate the impacts of cracks and fissures in the cement sheath around a completed subterranean well. It includes the steps of injecting a wellbore fluid carrying the reactive component or additive into the wellbore, injecting a cementitious composition as slurry into the wellbore and letting said reactive liquid component pass through at least one of the interfaces between cement and formation, cement and filter cake, and filter cake and formation before forming a solid of said reactive liquid component that traverses said at least one of the interfaces.Type: ApplicationFiled: June 26, 2006Publication date: March 18, 2010Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Christopher Alan Sawdon, Hemant Kumar Jethalal Ladva, Timothy Gareth John Jones, Gary John Tustin
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Patent number: 7677313Abstract: A method of blocking a high permeability channel in communication with a wellbore, including the steps of introducing an amount of an unreinforced gel into the high permeability channel via the wellbore and introducing an amount of a reinforced gel comprising an amount of a reinforcing material into the high permeability channel via the wellbore. The method may further include the step, after introducing the unreinforced gel and the reinforced gel into the high permeability channel, of introducing an amount of a chaser fluid into the wellbore.Type: GrantFiled: September 13, 2005Date of Patent: March 16, 2010Assignee: Alberta Science and Research AuthorityInventors: Bernard Tremblay, Haibo Huang, Ron Sawatzky, Douglas A. Lillico, Zhihong (John) Zhou
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Patent number: 7673687Abstract: A method of servicing a wellbore comprising placing a composition comprising cement, water, and a heat sink material into a wellbore, and allowing the composition to set, wherein at least a portion of the heat sink material undergoes a phase transition by absorbing at least a portion of the heat released upon hydration of the cement. A method of completing a wellbore, comprising forming a wellbore in a subterranean formation comprising permafrost, gas hydrates, or both, preparing a cement composition comprising cement, water, and a heat sink material, placing the cement composition into an annulus formed between a casing and the wellbore, and allowing the composition to set, wherein at least a portion of the heat sink material undergoes a phase transition by absorbing at least a portion of the heat released upon hydration of the cement, thereby reducing an amount of heat transferred from the annular cement to the surrounding permafrost and/or gas hydrates.Type: GrantFiled: December 5, 2007Date of Patent: March 9, 2010Assignee: Halliburton Energy Services, Inc.Inventors: B. Raghava Reddy, Bryan K. Waugh
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Publication number: 20100051277Abstract: An apparatus for reverse circulation cementing of surface casing in subterranean formations and associated methods are provided. One example of a method may involve a method of reverse circulation cementing a surface casing in a well bore with a conductor casing positioned therein comprising: providing a tool comprising at least one isolation device coupled to the surface casing; positioning the isolation device in the well bore to isolate an annulus between the surface casing and the conductor casing; flowing cement through a port in the conductor casing in a reverse circulation direction; and allowing the cement to set therein.Type: ApplicationFiled: November 12, 2009Publication date: March 4, 2010Inventors: Stephen Chase, Gary Maier
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Publication number: 20100038084Abstract: A variety of methods and compositions are disclosed, including, in one embodiment, a method of cementing in a subterranean formation comprising introducing a cement composition into the subterranean formation, wherein the cement composition comprises cement; a strength-enhancing additive consisting essentially of aluminum chloride and a metal halide; and water; and allowing the cement composition to set. Another method of cementing in a subterranean formation comprises preparing a cement composition that comprises cement, a strength-enhancing additive consisting essentially of aluminum chloride and a metal halide, and water, wherein the aluminum chloride and the salt are not combined prior to preparing the cement composition; introducing the cement composition into the subterranean formation; and allowing the cement composition to set.Type: ApplicationFiled: August 14, 2008Publication date: February 18, 2010Inventors: Craig W. Roddy, Ricky L. Covington, Jiten Chatterji, Bobby J. King, D. Chad Brenneis
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Publication number: 20100025039Abstract: The present invention includes well treatment fluids and methods utilizing nano-particles. An embodiment of a method of the present invention may comprise introducing a treatment fluid comprising nano-clay into a subterranean formation. The treatment fluid may be selected from the group consisting of a cement composition, a drilling fluid, a spacer fluid, and a lost circulation control composition. Another embodiment of the present invention may comprise a method of cementing. The method of cementing may comprise introducing a cement composition comprising a hydraulic cement, nano-clay, and water into a subterranean formation. The method further may comprise allowing the cement composition to set in the subterranean formation. Yet another embodiment of the present invention may comprise a treatment fluid, the treatment fluid comprising nano-clay. The treatment fluid may be selected from the group consisting of a cement composition, a drilling fluid, a spacer fluid, and a lost circulation control composition.Type: ApplicationFiled: September 27, 2009Publication date: February 4, 2010Applicant: HALLIBURTON ENERGY SERVICES, INC.Inventors: Craig W. Roddy, Ricky L. Covington, Jiten Chatterji, D. Chad Brenneis
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Patent number: 7650940Abstract: Methods of cementing comprising: providing a cement composition comprising water, a cement, and a particulate elastomer comprising a carboxy group; and allowing the cement composition to set. Cement compositions comprising water, a cement, and a particulate elastomer comprising a carboxy group.Type: GrantFiled: December 29, 2005Date of Patent: January 26, 2010Assignee: Halliburton Energy Services Inc.Inventors: B. Raghava Reddy, Krishna M Ravi
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Patent number: 7647970Abstract: A cement composition is provided including a cement and a low reactivity particle coated with a swellable polymeric material. The low reactivity particle is coated with a swellable polymeric material at a concentration of about 10 weight percent to about 50 weight percent, based on the weight of the cement. The swellable polymeric material swells to a larger volume when exposed to one or more hydrocarbons, depending on the selected polymeric material. The cement composition is used in a method as a self-sealing cement for cementing an oil and gas well, thereby minimizing or mitigating the unwanted migration of water or hydrocarbons.Type: GrantFiled: December 17, 2007Date of Patent: January 19, 2010Assignee: BJ Services CompanyInventors: Dan Thomas Mueller, Harold Dean Brannon, Windell Scott Bray
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Patent number: 7642223Abstract: Methods of servicing a wellbore include generating gas in a plugging composition in situ within a permeable zone in the wellbore, thereby improving the ability of the plugging composition to seal the permeable zone. The gas may be generated via a chemical reaction by, for example, introducing first and second reactants to the plugging composition that can react at ambient temperatures in the wellbore. In an embodiment, the first and second reactants are concurrently pumped into the wellbore via separate flow paths within two concentric conduits to the permeable zone where they are allowed to contact each other in the presence of the plugging composition. In another embodiment, the first reactant, the second reactant, and a retarder for slowing the reaction between the two reactants are concurrently pumped to the permeable zone. In yet another embodiment, one of the reactants is encapsulated to delay a reaction between the two reactants.Type: GrantFiled: October 18, 2004Date of Patent: January 5, 2010Assignee: Halliburton Energy Services, Inc.Inventors: Ashok K. Santra, B. Raghava Reddy, Frank Zamora, Giddo Antonio Ocana Gomez, Ronnie G. Morgan, Mark R. Savery
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Publication number: 20090321074Abstract: A down hole tool including a compression surface, a compression surface axis, and at least one support member configured to attach the compression surface to a well drilling tool assembly, wherein the extendable support member is extendable by an extension force provided to the support member. The down hole tool is rotable relative to an axis of the well drilling tool assembly, and as the well drilling tool assembly rotates, the at least one compression device exerts a lateral force along a sidewall of a wellbore. Also, a method of forming filter cake comprising releasing a drilling fluid and contacting the drilling fluid with a mechanical pressure on the sidewall of the wellbore and the drilling fluid.Type: ApplicationFiled: September 4, 2009Publication date: December 31, 2009Applicant: M-I LLCInventor: Michael A. Freeman
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Publication number: 20090308612Abstract: A wellbore servicing method comprising converting a water into an electrochemically activated water, preparing a wellbore servicing composition comprising the electrochemically activated water, and placing the wellbore servicing composition in a wellbore. Also disclosed is a cement composition comprising a cement and an electrochemically activated water.Type: ApplicationFiled: September 24, 2007Publication date: December 17, 2009Applicant: Halliburton Energy Services, Inc.Inventors: Jim Weaver, Mark Savery, Billy Slabaugh, Roger Cromwell
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Publication number: 20090308611Abstract: A method of servicing a wellbore comprising placing a wellbore servicing fluid comprising a density segregation inhibitor composite into the wellbore, wherein the density segregation inhibitor composite comprises a high density additive and a low density additive; and wherein the high density additive comprises barium sulfate, iron oxide, manganese oxide, or combinations thereof. A method of inhibiting segregation of particles in a wellbore servicing fluid comprising preparing a composite material comprising a high density additive and a low density additive, wherein the low density additive comprises an elastomer which can increase in volume by greater than about 300% based on its original volume when contacted with a fluid.Type: ApplicationFiled: June 16, 2008Publication date: December 17, 2009Applicant: HALLIBURTON ENERGY SERVICES, INC.Inventors: Ashok K. Santra, Feng Liang, Russell M. Fitzgerald
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Publication number: 20090288830Abstract: A synthetic glass family in the quaternary phase field of CaO—SiO2-Al2O3-MgO (CSAM) with hydraulic and pozzolanic properties for use in differing applications in the gas and oil well cementing area. A method of making a mud-to-cement (MTC) slurry and a method for treating oil and gas wells with the MTC slurry containing a homogenous amorphous synthetic glass made from a mixture of inorganic materials selected from the group consisting of CSAM, wherein the cementing glasses with the mixture of inorganic materials are in a 100% amorphous phase with a degree of crystallization of zero.Type: ApplicationFiled: May 20, 2008Publication date: November 26, 2009Applicant: INTEVEP, S.A.Inventors: Yibran Perera, Virginia Buccellato, George Quercia, Aiskely Blanco
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Publication number: 20090283269Abstract: A variety of methods and compositions are disclosed herein, including, in one embodiment, a method of cementing in a subterranean formation comprising: providing an extended cement composition comprising cement, water, an oil-swellable particle, and a set retarding additive, wherein the extended cement composition is capable of remaining in a pumpable fluid state for at least about 1 day; adding a cement set accelerator to the extended cement composition; introducing the extended cement composition into a well bore; and allowing the extended cement composition to set. Another embodiment comprises an extended cement composition comprising: cement; water; an oil-swellable particle; and a set retarding additive, wherein the extended cement composition is capable of remaining in a pumpable fluid state for at least about 1 day.Type: ApplicationFiled: May 14, 2008Publication date: November 19, 2009Inventors: Craig W. Roddy, Jiten Chatterji, D. Chad Brenneis, Bobby J. King
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Publication number: 20090277636Abstract: In one embodiment, a system includes a cased wellbore disposed in a formation of interest. The system includes an emulsion positioned in the wellbore at a depth of the formation of interest. The emulsion includes an oil external phase and an aqueous internal phase. The oil external phase includes particles having calcium hydroxide. The aqueous internal phase includes insoluble silica particles. The system further includes a perforating tool that generates perforation tunnels through the cased wellbore into the formation of interest. The system further includes a well flow control device that shuts in the wellbore for a specified period of time. The emulsion breaks during contact with the formation in the perforation tunnels, and the calcium hydroxide and silica particles form a cementitious material that consolidates the perforation tunnels.Type: ApplicationFiled: May 9, 2008Publication date: November 12, 2009Inventors: Gregory Kubala, Philip F. Sullivan, Kevin W. England
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Patent number: 7612021Abstract: Disclosed embodiments relate to compositions and methods for using a composite particulate comprising a cellulosic fiber and a filler as a lost-circulation material. An example of a method of controlling lost circulation in a subterranean method, comprises contacting a subterranean formation with a fluid comprising a base fluid and a lost circulation material, wherein the lost circulation material comprises a composite particulate, and wherein the composite particulate comprises a cellulosic fiber and a filler. An example method of cementing comprises introducing a cement composition into a well bore penetrating a subterranean formation, wherein the cement compositions comprises a cement, water, and a lost-circulation material, and wherein the lost-circulation material comprises a lost-circulation material, and wherein the lost-circulation material comprises a cellulosic fiber and a filler. Example compositions include lost-circulation materials, treatment fluids and cement compositions.Type: GrantFiled: August 24, 2007Date of Patent: November 3, 2009Assignee: Halliburton Energy Services, Inc.Inventors: Jiten Chatterji, Bobby King, Darrell C. Brenneis
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Publication number: 20090266543Abstract: A method of servicing a wellbore comprising placing in the wellbore a composition comprising a non-API compliant reactive calcium silicate based hydraulic binder and at least one gelation inhibiting retarder, and allowing the composition to set. A method of servicing a wellbore comprising placing in a wellbore a cement composition comprising an industrial waste product selected from the group consisting of Class C Fly ash, cement kiln dust, and combinations thereof and a gelation inhibitor, and allowing the composition to set. A method of controlling the thickening time of a cementitious composition comprising contacting a material having greater than 15 wt. % of tricalcium aluminate and tetracalcium aluminoferrite with a gelation inhibitor comprising a alkylbenzene sulfonic acid, at least one methallyl sulfonic acid monomer; at least one copolymerizable nonionic monomer, and at least one copolymerizable olefinically unsaturated carboxylic acid monomer.Type: ApplicationFiled: April 28, 2008Publication date: October 29, 2009Applicant: HALLIBURTON ENERGY SERVICES, INC.Inventors: B. Raghava Reddy, Bryan K. Waugh, Russell M. Fitzgerald
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Patent number: 7607483Abstract: Sealant compositions comprising a colloidally stabilized latex and methods of using the same to service a wellbore are provided. The sealant compositions may include: an aliphatic conjugated diene monomer; an additional monomer comprising a non-aromatic unsaturated mono- or di-carboxylic ester monomer, an aromatic unsaturated monomer, a nitrogen-containing monomer, or combinations thereof; and a protective colloid. The foregoing sealant composition may be displaced into the wellbore to isolate the subterranean formation from a portion of the wellbore, to support a conduit in the wellbore, to plug a void or crack in the conduit, to plug a void or crack in a cement sheath disposed in an annulus of the wellbore, to plug an opening between the cement sheath and the conduit, or combinations thereof. The colloidally stabilized latex remains substantially stable when exposed to salt, which may be present in the wellbore and/or in the sealant composition itself.Type: GrantFiled: April 19, 2004Date of Patent: October 27, 2009Assignee: Halliburton Energy Services, Inc.Inventors: B. Raghava Reddy, Anthony V. Palmer
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Patent number: 7607482Abstract: A variety of methods and compositions are disclosed herein, including, in one embodiment, a method comprising: introducing a settable composition into a subterranean formation, wherein the settable composition comprises: a cementitious component comprising a hydraulic cement and cement kiln dust; a swellable particle; and water; and allowing the settable composition to set in the subterranean formation. Another embodiment comprises a settable composition comprising: a cementitious component comprising a hydraulic cement and cement kiln dust; a swellable particle; and water.Type: GrantFiled: September 11, 2008Date of Patent: October 27, 2009Assignee: Halliburton Energy Services, Inc.Inventors: Craig W. Roddy, Jiten Chatterji, D. Chad Brenneis, Bobby J. King
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Patent number: 7608566Abstract: Particulate compositions that comprise macro-particulates, and degradable particulates in an amount sufficient to reduce friction between the macro-particulates, the degradable particulates having a mean particle diameter of at least about 20 times smaller than the mean particle diameter of the macro-particulates are disclosed herein. Also disclosed are fluids that comprise a liquid component, and a particulate composition, the particulate composition comprising macro-particulates and degradable particulates having a mean particle diameter of at least about 20 times smaller than the mean particle diameter of the macro-particulates, wherein the degradable particulates are present in the particulate composition in an amount sufficient to reduce friction between the macro-particulates. Methods of using the particulate compositions and fluids are also disclosed.Type: GrantFiled: March 30, 2006Date of Patent: October 27, 2009Assignee: Halliburton Energy Services, Inc.Inventors: Rajes K. Saini, Michael J. R. Segura
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Patent number: 7607484Abstract: Of the many compositions and methods provided herein, an embodiment of a method comprises introducing a foamed cement composition into a subterranean formation, wherein the foamed cement composition comprises: a cementitious component; a foaming and stabilizing surfactant; an oil-swellable particle; gas; and water; and allowing the settable composition to set in the subterranean formation. Another embodiment of a method comprises introducing a foamed cement composition into an annulus between a pipe string and a subterranean formation, wherein the foamed cement composition comprises comprising: a cementitious component; a foaming and stabilizing surfactant; an oil-swellable particle; gas; and water; and allowing the settable composition to set in the annulus. An embodiment of a foamed cement composition comprises a cementitious component, a foaming and stabilizing surfactant, a swellable particle, gas, and water.Type: GrantFiled: November 3, 2008Date of Patent: October 27, 2009Assignee: Halliburton Energy Services, Inc.Inventors: Craig W. Roddy, Jiten Chatterji, Bobby J. King, D. Chad Brenneis
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Publication number: 20090236097Abstract: Methods and compositions are provided that may comprise cement, a nano-particle, latex, and water. An embodiment of the present invention includes a method of cementing in a subterranean formation. The method may include introducing a cement composition into the subterranean formation, wherein the cement composition comprises cement, a nano-particle, latex, and water. The method further may include allowing the cement composition to set in the subterranean formation. Another embodiment of the present invention include a cement composition. The cement composition may comprise cement, a nano-particle, latex, and water.Type: ApplicationFiled: May 27, 2009Publication date: September 24, 2009Applicant: Halliburton Energy Services, Inc.Inventors: Craig W. Roddy, Jiten Chatterji, Roger Cromwell, Rahul Chandrakant Patil, Abhijit Tarafdar, Abhimanyu Deshpande, Christopher L. Gordon
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Publication number: 20090236095Abstract: The present invention relates to a method of cementing a casing of an oil or gas pipeline to a surrounding well wall, where an hydraulic cement slurry is formed and the slurry is deployed in the annulus between the pipeline casing and the surrounding well wall. The cement slurry is formed by mixing together an hydraulic cement 12 to 24% of silica based on the weight of cement, and water; wherein the silica comprises ? to ? microfine silica and ? to ? silica flour. The invention further relates to a cement slurry for use in the method.Type: ApplicationFiled: August 29, 2007Publication date: September 24, 2009Applicant: Elkem ASInventors: Philippe Revil, Frank Vidar Rostol
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Patent number: 7578346Abstract: A material and method for treating a fractured formation penetrated by a wellbore includes providing a quantity of resin coated particles having a particle size of from about 0.2 mm to about 2.35 mm. A quantity of smaller deformable or non-deformable particles is combined with the resin coated particles to form a generally uniform consolidated particle pack when mixed together and subjected to at least one of heat and pressure. A slurry of the particles is formed with a carrier fluid capable of suspending the particles. The slurry of particles is introduced into the wellbore of the formation. The resin coated particles and smaller deformable particles thus may form a consolidated particle pack in at least a portion of the fractures of the formation.Type: GrantFiled: November 8, 2006Date of Patent: August 25, 2009Assignee: Schlumberger Technology CorporationInventors: Diankui Fu, Kreso Kurt Butula
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Patent number: 7578347Abstract: A method of sealing a space in a wellbore formed in an earth formation comprises inserting a plurality of swellable particles into the space by pumping them in a carrier fluid, the particles being susceptible to swelling upon contact with a selected fluid, and inducing the selected fluid to contact the swelleable particles whereby the swelleable particles swell so as to form a body of swollen particles in the space.Type: GrantFiled: November 18, 2005Date of Patent: August 25, 2009Assignee: Shell Oil CompanyInventors: Martin Gerard Rene Bosma, Erik Kerst Cornelissen, John Alexander Gordon Dewar
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Publication number: 20090205829Abstract: A method of plugging a fracture in a subterranean formation which includes placing into the fracture a composition comprising microspheres or microbeads, wherein the microspheres are created by surface crosslinking of droplets in a water-in-water emulsion. Such microspheres may form a filter cake in the formation. The microspheres may include a chemical agent to be released when the microspheres dissolve.Type: ApplicationFiled: February 19, 2008Publication date: August 20, 2009Inventors: Philip F. Sullivan, Gary John Tustin, Bruno Drochon, Marie Noelle Dessinges, Gregory Kubala, Christelle Vatry
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Publication number: 20090205824Abstract: Methods and apparatus for forming a fluid for use within in a subterranean formation including crosslinking a polymer along the surface of microspheres in a water-in-water emulsion and introducing the microspheres into the subterranean formation. Methods and apparatus for forming a fluid for use within in a subterranean formation including crosslinking a polymer along the surface of microspheres in a water in water emulsion, isolating the microspheres from the emulsion, and introducing the microspheres into the subterranean formation. Methods and apparatus for forming a fluid to treat a subterranean formation including introducing a crosslinkable polymer, partitioning agent, and crosslinker into a solvent, crosslinking the crosslinkable polymer, isolating beads of the crosslinkable polymer from the partitioning agent, introducing the beads into a fluid for treating a subterranean formation.Type: ApplicationFiled: January 14, 2009Publication date: August 20, 2009Inventors: Philip F. Sullivan, Gary John Tustin, Don Williamson, Hemant K. Ladva
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Patent number: 7576042Abstract: A method of servicing a wellbore comprising preparing a cement slurry by premixing at least one latex, at least one stabilizer, and optionally water to form a homogeneous solution, further mixing the homogeneous solution with an ionic compound, cement, and optionally additional water to form the slurry, and placing the slurry in the wellbore. A method of stabilizing latex in cement slurry containing saltwater, comprising premixing the latex with a stabilizer until a homogenous solution forms prior to contacting the latex with the saltwater. A cement slurry comprising a latex, a stabilizer, a cement, an ionic compound, and water wherein the latex and stabilizer are contacted prior to contact of the latex with the ionic compound.Type: GrantFiled: February 28, 2006Date of Patent: August 18, 2009Assignee: Halliburton Energy Services, Inc.Inventors: Sam Lewis, Rickey Morgan, Christopher Gordon, Ashok K. Santra
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Publication number: 20090200029Abstract: An embodiment of a method of cementing comprises: introducing a cement composition into a subterranean formation, wherein the cement composition comprises cement kiln dust, a natural pozzolan, and water; and allowing the cement composition to set. Another embodiment of a method comprises: introducing a cement composition into a subterranean formation, wherein the cement composition comprises a cement, a natural pozzolan, and water, wherein the cement comprises Portland cement interground with burned shale; and allowing the cement composition to set. Another embodiment includes a cement composition comprising at least one additive selected from the group consisting of cement, cement kiln dust, Portland cement interground with burned shale, and a combination thereof; a natural pozzolan; and water.Type: ApplicationFiled: April 8, 2009Publication date: August 13, 2009Applicant: Halliburton Energy Services, Inc.Inventors: Craig W. Roddy, Jiten Chatterji, D. Chad Brenneis, Ronnie G. Morgan
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Publication number: 20090188670Abstract: The present invention includes methods and compositions that include a composition comprising a high alumina cement; a salt comprising at least one salt selected from the group consisting of an acidic salt, a neutral salt, and a low basicity salt; and a swellable clay; and methods of using that composition in subterranean formations.Type: ApplicationFiled: January 25, 2008Publication date: July 30, 2009Inventors: Ying Xu, B. Raghava Reddy, Rickey Lynn Morgan
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Publication number: 20090145602Abstract: A method of servicing a wellbore comprising placing a composition comprising cement, water, and a heat sink material into a wellbore, and allowing the composition to set, wherein at least a portion of the heat sink material undergoes a phase transition by absorbing at least a portion of the heat released upon hydration of the cement. A method of completing a wellbore, comprising forming a wellbore in a subterranean formation comprising permafrost, gas hydrates, or both, preparing a cement composition comprising cement, water, and a heat sink material, placing the cement composition into an annulus formed between a casing and the wellbore, and allowing the composition to set, wherein at least a portion of the heat sink material undergoes a phase transition by absorbing at least a portion of the heat released upon hydration of the cement, thereby reducing an amount of heat transferred from the annular cement to the surrounding permafrost and/or gas hydrates.Type: ApplicationFiled: December 5, 2007Publication date: June 11, 2009Applicant: HALLIBURTON ENERGY SERVICES, INC.Inventors: B. Raghava Reddy, Bryan K. Waugh
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Patent number: 7543642Abstract: Cement compositions comprising flexible, compressible beads, processes for preparing such cement compositions, and methods of cementing in subterranean formations using such cement compositions. One or more flexible, compressible beads are mixed with the cement before pumping the cement into a well bore. The flexible, compressible beads are preferably composed of an elastomeric material such as a copolymer of methylmethacrylate and acrylonitrile; a terpolymer of methylmethacrylate, acrylonitrile, and dichloroethane; a styrene-divinylbenzene copolymer; and polystyrene. The flexible, compressible beads may be heated to expand the beads before mixing with the cement such that the ensuing cement composition will have a desired density. Non-flexible beads such as spherulites may also be added to the cement compositions.Type: GrantFiled: January 24, 2003Date of Patent: June 9, 2009Assignee: Halliburton Energy Services, Inc.Inventors: B. Raghava Reddy, Krishna M. Ravi, Michael J. Szymanski
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Patent number: 7544641Abstract: Rapid setting plugging compositions comprising oil, clay, magnesium chloride, and magnesium oxide powder are provided for sealing permeable zones in subterranean formations. The permeable zones may be sealed by passing the plugging composition and water to the subterranean formation. While being exposed to downhole temperatures in a range of from about 0° F. to about 500° F., the plugging composition quickly thickens to form a sealing mass that is substantially impermeable to fluid in less than about 1 minute after contacting the water. It then usually develops an effective amount of compressive strength to prevent it from being washed away within a period ranging from about 5 minutes to about 2 hours at temperatures ranging from about 0° F. to about 500° F.Type: GrantFiled: August 17, 2005Date of Patent: June 9, 2009Assignee: Halliburton Energy Services, Inc.Inventors: Bruce Robertson, Ian A. Fowler
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Patent number: 7530396Abstract: A method of servicing a wellbore comprising placing a cement composition comprising a cementitious material, water, and an elastomeric material comprising a bonding polar group into a wellbore, and allowing the cement composition to set to form a set cement, wherein the elastomeric material has a phase transition temperature, exhibits cold flow behavior, or both at less than or equal to the bottom hole static temperature of the wellbore. A method of servicing a cased wellbore penetrating a formation, comprising introducing a self-repairing cementitious material into a wellbore, and allowing the cement to set, wherein upon a loss of structural integrity the set cement self-repairs, and wherein the loss of structural integrity comprises the formation of flow pathways for fluid migration in the cement and self-repair comprises obstructing potential pathways for fluid migration.Type: GrantFiled: April 22, 2008Date of Patent: May 12, 2009Assignee: Halliburton Energy Services, Inc.Inventors: B. Raghava Reddy, Feng Liang, Russell M. Fitzgerald, David Meadows
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Patent number: 7530395Abstract: A method of servicing a wellbore comprising placing in the wellbore a composition comprising a calcium aluminate cement and at least one gelation inhibitor, and allowing the composition to set. A method of servicing a wellbore comprising adjusting the thickening time of calcium aluminate cement by contacting the cement with a salt and a gelation inhibitor, wherein the gelation inhibitor comprises a copolymer comprising one or more sulfonated aromatic monomers and one or more acrylate monomers, placing the cement in the wellbore, and allowing the cement to set.Type: GrantFiled: March 26, 2007Date of Patent: May 12, 2009Assignee: Halliburton Energy Services, Inc.Inventors: B. Raghava Reddy, Rickey Morgan
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Patent number: 7527098Abstract: A wellbore may be cemented by preparing a cementitious composition comprising water, a metal oxide or hydroxide compound, a phosphate compound, a borate compound, and a sugar, followed by displacing the cementitious composition into the wellbore. The metal oxide or hydroxide compound reacts with the phosphate compound in the wellbore to set into a hard mass. The synergistic effect of the borate compound and the sugar may increase a thickening time of the cementitious composition to in a range of from about 2 hours to about 11 hours at ambient temperatures in the wellbore. As such, the thickening time is sufficient to allow the cementitious composition to be placed in its desired location in the wellbore before setting.Type: GrantFiled: May 27, 2004Date of Patent: May 5, 2009Assignee: Halliburton Energy Services, Inc.Inventors: Ashok K. Santra, Russell M. Fitzgerald
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Publication number: 20090107676Abstract: Methods of cementing are provided including a method comprising: a method of cementing in a well bore comprising providing a storable cement composition; placing the storable cement composition in an annulus in a reverse-circulation direction using cementing equipment supported by a trailer, wherein the annulus is formed by an outer surface of a casing in the well bore and an inner wall of the well bore; and allowing the storable cement composition to set in the annulus. In some embodiments, the storable cement composition may comprise a hydraulic cement, an aqueous fluid, and a set retarder. In some embodiments, a storable cement composition may be transported to the well bore using a trailer connected to a towing vehicle. Additional methods are also provided.Type: ApplicationFiled: October 26, 2007Publication date: April 30, 2009Inventor: James P. Saunders
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Publication number: 20090107677Abstract: A sealant composition for use in subterranean wells comprising an alkali metal silicate and a calcium containing inorganic compound wherein the particles of the calcium containing compound have a mean particle size that is submicron.Type: ApplicationFiled: October 28, 2008Publication date: April 30, 2009Inventors: Simon James, Michel Michaux
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Publication number: 20090095475Abstract: A variety of methods and compositions are disclosed, including, in one embodiment, a method of treating a subterranean formation comprising introducing a treatment fluid into a well bore, wherein the treatment fluid comprises a particulate elastomer having a specific gravity of at least about 1.6. Another method of treating a subterranean formation comprises introducing a treatment fluid into a well bore, wherein the treatment fluid comprises a particulate elastomer having a specific gravity of at least about 1.05, wherein the particulate elastomer comprises a halogenated thermoplastic. Treatment fluids, methods of cementing, and cement compositions are also provided herein.Type: ApplicationFiled: September 8, 2008Publication date: April 16, 2009Inventors: Krishna M. Ravi, Joseph K. Maxson, Ashok K. Santra