Carbohydrate Is Cellulose Or Derivative Thereof Patents (Class 507/112)
  • Patent number: 10377941
    Abstract: Stable CNT dispersions having a combination of polymeric dispersants, including at least one first dispersant and at least one second dispersant, wherein the second dispersant is stable under saline conditions, and methods of using the CNT dispersions in subterranean formations for enhancing oil recovery therefrom.
    Type: Grant
    Filed: September 25, 2015
    Date of Patent: August 13, 2019
    Assignee: The Board of Regents of the University of Oklahoma
    Inventors: Mohannad J. Kadhum, Daniel E. Resasco, Jeffrey H. Harwell, Ben Shiau, Daniel P. Swatske
  • Patent number: 9920233
    Abstract: There is described a drilling fluid for wellbore strengthening having nanoparticles and granular particles. In one aspect described herein, the drilling fluid is an invert emulsion based fluid. In a further aspect, the nanoparticles are iron hydroxide or calcium carbonate, and in a further aspect from about 1 to 30 nm in size. In one aspect described herein, the granular particles are graphite or calcium carbonate and in a further aspect, up to 250 ?m in size. The nanoparticles and granular particles plug fractures in the wellbore to strengthen the wellbore.
    Type: Grant
    Filed: July 9, 2013
    Date of Patent: March 20, 2018
    Assignee: NFLUIDS INC.
    Inventors: Maen Moh'd Husein, Geir Hareland
  • Patent number: 9890315
    Abstract: What is proposed is the use of hyperbranched polylysine in the development, exploitation and completion of underground mineral oil and natural gas deposits, and in deep wells, especially as a shale inhibitor in water-based drilling muds, completion fluids or stimulation fluids.
    Type: Grant
    Filed: June 20, 2012
    Date of Patent: February 13, 2018
    Assignee: BASF SE
    Inventors: Oscar Lafuente Cerda, Bernd Bruchmann, Sophie Maitro-Vogel, Marta Reinoso Garcia
  • Patent number: 9826750
    Abstract: Disclosed herein are embodiments of a composition for use in forming films or coatings that prevent damage in foodstuffs, including plants, fruits, and vegetables. The disclosed compositions comprise a cellulose nanomaterial and can further comprise a nanoscale mineral compound and one or more additional components. Also disclosed are films or coatings made using the disclosed compositions, as well as methods for making the disclosed compositions and methods for using the disclosed compositions.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: November 28, 2017
    Assignee: Oregon State University
    Inventors: Yanyun Zhao, John Simonsen, George Cavender, Jooyeoun Jung, Leslie H. Fuchigami
  • Patent number: 9683167
    Abstract: Methods for treating a wellbore include providing a wellbore in a low permeability subterranean formation; providing a treatment fluid comprising an aqueous base fluid and drag-reducing propping fibers; introducing the treatment fluid into the wellbore at a rate and pressure sufficient to create or enhance at least one micro-fracture therein, wherein the drag-reducing propping fibers are capable of reducing the friction created within the treatment fluid as it is introduced into the wellbore; and placing the drag-reducing propping fibers into the at least one micro-fracture so as to prop open the micro-fracture.
    Type: Grant
    Filed: August 27, 2013
    Date of Patent: June 20, 2017
    Assignee: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Philip D. Nguyen, James William Ogle, Ali Alwattari
  • Patent number: 9555454
    Abstract: Described herein are systems for manipulating a flowable substance, comprising: a flowable substance; a heating means; a cooling means; and a composition comprising chemically inert particles coated with a stimuli-responsive material. Compositions and methods for using the compositions are also described herein.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: January 31, 2017
    Assignee: Lehigh University
    Inventors: Sibel Pamukcu, Yi Dong
  • Patent number: 9453156
    Abstract: A method is disclosed for reducing lost circulation in drilling wells, employing composite materials as lost circulation materials. The composites comprise a thermoplastic polymer and cellulosic fibers. Optionally the composites may include other components such as calcium carbonate, clay, oil and other blending agents.
    Type: Grant
    Filed: August 11, 2009
    Date of Patent: September 27, 2016
    Assignee: Board of Supervisors of Louisiana State University And Agricultural and Mechanical College
    Inventor: Qinglin Wu
  • Publication number: 20150072902
    Abstract: Treatment fluids and methods for treating a subterranean formation include introducing a treatment fluid into a subterranean formation, the treatment fluid containing a nanocrystalline cellulose. The treatment fluid may be a fracturing fluid, well control fluid, well kill fluid, well cementing fluid, acid fracturing fluid, acid diverting fluid, a stimulation fluid, a sand control fluid, a completion fluid, a wellbore consolidation fluid, a remediation treatment fluid, a spacer fluid, a drilling fluid, a frac-packing fluid, water conformance fluid or a gravel packing fluid.
    Type: Application
    Filed: November 16, 2014
    Publication date: March 12, 2015
    Inventors: Valerie Lafitte, Jesse C. Lee, Simon Gareth James, Julia Fernandez Del Valle, Andrey Vladimirovich Yakovlev, Mohan K.R. Panga, Geza Horvath Szabo
  • Publication number: 20140291029
    Abstract: Beneficiated clay viscosifying additives may include a low-quality clay and a polymer coated high-quality clay that comprises a high-quality clay at least partially coated with a polymer, wherein the ratio of low-quality clay to high-quality clay is about 90:10 to about 80:20 by weight. Such beneficiated clay viscosifying additives may be used in drilling fluids.
    Type: Application
    Filed: March 29, 2013
    Publication date: October 2, 2014
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Thomas S. Cortner, Charles R. Landis, Eric B. Frantz
  • Patent number: 8835363
    Abstract: Drilling, drill-in and completion fluids containing nanoparticles for use in hydrocarbon drilling and recovery processes and methods related thereto are provided. The fluids also include a dual acting shield agent that shields the nanoparticles and also acts as a viscosifier. The fluids can be used in various types of hydrocarbon drilling and recovery processes, such as drilling, drill in, completion, and the like.
    Type: Grant
    Filed: June 16, 2010
    Date of Patent: September 16, 2014
    Assignee: Saudi Arabian Oil Company
    Inventors: Md. Amanullah, Ziad Al-Abdullatif
  • Publication number: 20140174724
    Abstract: The present invention relates to hollow hydrogel capsules. In various embodiments, the present invention provides a method of treating a subterranean formation with a hollow hydrogel capsule including a hydrogel shell including a hydrolyzed and crosslinked polymerized composition. The hollow hydrogel capsule also includes a hollow interior including at least one component of a downhole composition for subterranean petroleum or water well drilling, stimulation, clean-up, production, completion, abandonment, or a combination thereof. In various embodiments, the present invention provides compositions comprising the hollow hydrogel capsules and methods of making the hollow hydrogel capsules.
    Type: Application
    Filed: December 21, 2012
    Publication date: June 26, 2014
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Philip Wayne Livanec, Scott Anthony Klasner
  • Publication number: 20140121134
    Abstract: A method comprising drilling a wellbore into a subterranean formation; providing a drilling fluid comprising an aqueous base fluid and a property control package, the property control package comprising: a stabilizing agent; a filtration control agent; and a suspension enhancer; introducing the drilling fluid into the wellbore in the subterranean formation; and continuously circulating the drilling fluid during the drilling of the wellbore.
    Type: Application
    Filed: October 30, 2012
    Publication date: May 1, 2014
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Laura P. Kuri, Charles Landis, Ryan Collins, David M. Donald
  • Publication number: 20140024560
    Abstract: A drilling fluid, comprising an aqueous continuous phase, and a surfactant system comprising a mixture of an ester phosphate and a non-ionic ethoxylated alcohol. The drilling fluid may also contain one or more of at least one salt, an alkaline material, a viscosifying agent, a starch or starch derivative, a bridging agent, a weighting material, and a diesel oil or non-aromatic oil.
    Type: Application
    Filed: July 19, 2012
    Publication date: January 23, 2014
    Applicant: INTEVEP, S.A.
    Inventors: Jose Miguel Gonzalez Poche, Franklin Quintero Godoy, Rosa Linda Marquez Silva, Sergio Rosales, Jesus Enrique Arellano Varela, Harry Wilson Ogalde Arquero, Domingo Pernia
  • Publication number: 20130288932
    Abstract: According to an embodiment, a method of providing a biopolymer comprises: cryodesiccating a broth, wherein the broth comprises: (A) a biopolymer, wherein the biopolymer is an exopolysaccharide; and (B) a liquid growth medium. According to certain embodiments, the biopolymer is produced by the fermentation of at least one carbohydrate via a microbe. According to an embodiment, the microbe is a bacterium. According to another embodiment, the microbe is a fungus.
    Type: Application
    Filed: April 27, 2012
    Publication date: October 31, 2013
    Applicant: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Andrew A.F. Mackenzie, Eric Davidson
  • Publication number: 20130274149
    Abstract: Treatment fluids and methods for treating a subterranean formation are disclosed that include introducing a treatment fluid into a subterranean formation, the treatment fluid containing a nanocrystalline cellulose.
    Type: Application
    Filed: March 15, 2013
    Publication date: October 17, 2013
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Valerie Lafitte, Jesse C. Lee, Syed A. Ali, Philip F. Sullivan
  • Publication number: 20130261031
    Abstract: The present invention relates to processes employing industrial streams, including glycerol-containing by-products of triglyceride processing as well as waste glycol streams recovered from several sources, to produce oil well drilling, completion and hydrofracturing fluids.
    Type: Application
    Filed: March 29, 2012
    Publication date: October 3, 2013
    Inventor: Axel R. Johnson
  • Patent number: 8541346
    Abstract: The present invention relates to bridging agents for use in subterranean formations, to well drill-in and servicing fluids comprising such bridging agents, and to methods of using such bridging agents and well drill-in and servicing fluids in subterranean drilling operations. An example of a well drill-in and servicing fluid of the present invention comprises a viscosified fluid, a fluid loss control additive, and a bridging agent comprising a degradable material.
    Type: Grant
    Filed: May 25, 2010
    Date of Patent: September 24, 2013
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Bradley L. Todd, Trinidad Munoz, Jr.
  • Publication number: 20130225455
    Abstract: There is provided aqueous fluids comprising a mixture of at least two polysaccharides, water, and glass microspheres having pacified surfaces. There is also provided a method for making a fluid the method comprising (a) selecting a plurality of glass microspheres having alkaline surfaces; (b) coating the surfaces of the plurality of glass microspheres with an acid; and (c) combining the coated glass microspheres with (i) a mixture comprising at least two cross-linkable polysaccharides, and (ii) water. The fluids are useful, for example, as a drilling fluid.
    Type: Application
    Filed: October 28, 2011
    Publication date: August 29, 2013
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Stephen E. Amos, Andrew S. D'Souza, Clara E. Mata
  • Publication number: 20130196883
    Abstract: A method is provided for use in various well services, the method including the steps of: (a) forming or providing a well fluid comprising cellulose nanowhiskers; and (b) introducing the well fluid into a well. The method can be used, for example, for increasing the strength of a cement, for increasing the viscosity of a water-based well fluid, such as for a kill pill, a fracturing fluid, a gravel packing fluid.
    Type: Application
    Filed: July 30, 2012
    Publication date: August 1, 2013
    Applicant: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Marco Tulio Rincon-Torres, Lee J. Hall
  • Publication number: 20130195787
    Abstract: The present invention relates to substituted cellulose acetates and methods of use thereof. One embodiment of the present invention provides a drilling fluid having a base fluid and a viscosifier having a substituted cellulose acetate having a polar substituent that comprises an oxygen atom covalently bonded to a nonmetal selected from the group of sulfur, phosphorus, boron, and chlorine; where the nonmetal is present in at least about 0.01% by weight of the substituted cellulose acetate.
    Type: Application
    Filed: January 27, 2012
    Publication date: August 1, 2013
    Applicant: Celanese Acetate LLC
    Inventors: Michael T. Combs, Thomas S. Garrett
  • Publication number: 20130053283
    Abstract: This disclosure provides compositions suitable as drilling fluids, completion fluids, work-over fluids, or stimulation/fracking fluids, which exhibit shale inhibiting, thermostabilizing, viscosifying, and fluid loss reducing effects when used for these purposes. In some embodiments, this disclosure provides compositions that include a cellulose product comprising the contact product of: at least one cellulosic ether; at least one salt of a polyvalent metal ion; and at least one ligand or a salt of the ligand. The resulting cellulose products are useful in drilling of oil, gas, and other wells.
    Type: Application
    Filed: June 1, 2012
    Publication date: February 28, 2013
    Applicant: CP KELCO OY
    Inventor: Antonius Franciscus Maas
  • Publication number: 20130045896
    Abstract: A water-based polymer drilling fluid, containing effective quantities of surfactants having HLB numbers equal to or greater than approximately 7, emulsifies oil and bitumen contained in oil sand cuttings, resulting in the oil and bitumen being dispersed into the mud as an emulsion. This eliminates or significantly reduces the ability of the oil, bitumen, and cuttings to clog the well or stick to drill string components when drilling a well through oil-bearing sands, particularly sands containing highly viscous oil or bitumen. The emulsification process separates the sand particles from the oil and bitumen, such that the sand particles can be removed when the mud is run through a conventional shale shaker or other suitable apparatus.
    Type: Application
    Filed: October 22, 2012
    Publication date: February 21, 2013
    Applicant: Marquis Alliance Energy Group Inc.
    Inventor: Marquis Alliance Energy Group Inc.
  • Publication number: 20130035263
    Abstract: An agent for oilfield applications capable of being dispersed in water is nanofibrillar cellulose. The nanofibrillar cellulose mixed in water gives shear-thinning behavior to the composition, which is pumped to a subterranean oil-containing formation to aid in oil recovery.
    Type: Application
    Filed: January 25, 2011
    Publication date: February 7, 2013
    Applicant: UPM-KYMMENE CORPORATION
    Inventors: Antti Laukkanen, Jan-Erik Teirfolk, Juha Salmela, Martina Lille
  • Publication number: 20120316088
    Abstract: A method for determining a Plug Normal Stress Difference (?N1(P)) may include providing a test base drilling fluid that is characterized by N1(TB); adding a first concentration of a test particulate to the test base drilling fluid; adjusting the concentration of the test particulate in the test base drilling fluid to achieve a minimum concentration of the test particulate in the test base drilling fluid that will substantially plug a tapered slot, wherein the test base drilling fluid with the minimum concentration of the test particulate is characterized by N1(TA); and calculating ?N1(P)=|N1(TA)|?|N1(TB)| wherein each First Normal Stress Difference is measured by the same procedure.
    Type: Application
    Filed: August 22, 2012
    Publication date: December 13, 2012
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Sandeep D. Kulkarni, Sharath Savari, Arunesh Kumar, Matthew L. Miller, Robert Murphy, Dale E. Jamison
  • Publication number: 20120316089
    Abstract: A drilling fluid may include a base drilling fluid and a plurality of particulates, wherein a concentration of the particulates in the base drilling fluid provides for ?N1(F)??N1(P), wherein ?N1(F)=|N1(A)|?|N1(B)|. The particulates may be lost circulation materials including, for example, fibers.
    Type: Application
    Filed: August 22, 2012
    Publication date: December 13, 2012
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Sandeep D. Kulkarni, Sharath Savari, Arunesh Kumar, Matthew L. Miller, Robert Murphy, Dale E. Jamison
  • Publication number: 20120289436
    Abstract: A method of controlling or arresting the rate of depolymerization of a polymer composition during a biocide treatment, and use of such methods in oilfield and industrial applications. Also disclosed are methods of preparing a visco-stable application fluid containing a biocide in an amount effective to reduce bacteria count, as well as additive compositions capable of reducing bacteria count in application fluids while maintaining viscosity in such fluids. Also disclosed are methods of preparing biocide-containing application fluids with improved friction reducing properties, as well as related compositions.
    Type: Application
    Filed: May 9, 2012
    Publication date: November 15, 2012
    Applicant: RHODIA OPERATIONS
    Inventors: Gary WOODWARD, Subramanian KESAVAN, Adedamola ADEDEJI, Timothy CURTIS
  • Patent number: 8293686
    Abstract: A water-based polymer drilling fluid, containing effective quantities of surfactants having HLB numbers equal to or greater than approximately 7, emulsifies oil and bitumen contained in oil sand cuttings, resulting in the oil and bitumen being dispersed into the mud as an emulsion. This eliminates or significantly reduces the ability of the oil, bitumen, and cuttings to clog the well or stick to drill string components when drilling a well through oil-bearing sands, particularly sands containing highly viscous oil or bitumen. The emulsification process separates the sand particles from the oil and bitumen, such that the sand particles can be removed when the mud is run through a conventional shale shaker or other suitable apparatus.
    Type: Grant
    Filed: May 30, 2011
    Date of Patent: October 23, 2012
    Assignee: Marquis Alliance Energy Group Inc.
    Inventors: An-Ming Wu, Jay Brockhoff
  • Publication number: 20120264657
    Abstract: Stabilized emulsion compositions comprising an oleaginous fluid, a fluid that is at least partially immiscible with the oleaginous fluid, and, an emulsion stabilizing agent. The emulsion stabilizing agent comprises a first ionic compound soluble in the oleaginous fluid or the fluid that is at least partially immiscible with the oleaginous fluid and a second ionic compound with a charge of opposite sign of the first ionic compound and that is at least partially soluble in the opposite fluid as the first ionic compound. The first ionic compound and the second ionic compound are selected from the group consisting of: a cationic ionic surfactant, an anionic surfactant, a cationic polyelectrolyte, an anionic polyelectrolyte, and a combination thereof.
    Type: Application
    Filed: June 27, 2012
    Publication date: October 18, 2012
    Applicant: Halliburton Energy Services, Inc.
    Inventor: Ryan van Zanten
  • Publication number: 20120231978
    Abstract: Drilling fluids comprising a base fluid and a hydrophobically modified polymer. The hydrophobically modified polymer consisting of alkyl chains having a carbon chain length between about 4 and about 22 carbons bound to a hydrophilic polymer. The hydrophilic polymer (1) consists of a polymer backbone that contains polar heteroatoms, at least one of which is not a nitrogen atom, and at least a portion of the polar heteroatoms are functionalized with the alkyl chains; and, (2) comprises at least one hydrophilic polymer selected from the group consisting of a cellulose, a chitosan, a polyetheramine, a polyhydroxyetheramine, a polylysine, and a polysulfone.
    Type: Application
    Filed: May 22, 2012
    Publication date: September 13, 2012
    Inventors: Larry S. Eoff, Eldon D. Dalrymple, B. Raghava Reddy
  • Publication number: 20120210911
    Abstract: A well treatment composition comprises: a water-soluble, organic liquid, wherein the organic liquid: (A) comprises the continuous phase of the well treatment composition; and (B) comprises a polyglycol or a derivative of polyglycol; a fluid loss additive, wherein the fluid loss additive: (A) is insoluble in the organic liquid; and (B) comprises a high molecular weight, water-swellable polymer; and a suspending agent, wherein the suspending agent comprises an organophilic clay, wherein the well treatment composition has an activity of at least 15%. A method of cementing in a subterranean formation comprises: introducing a cement composition into the subterranean formation, the cement composition comprising: (i) cement; (ii) water; and (iii) the well treatment composition; and allowing the cement composition to set after introduction into the subterranean formation.
    Type: Application
    Filed: April 27, 2012
    Publication date: August 23, 2012
    Applicant: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Abhijit TARAFDAR, Remitha AK
  • Publication number: 20120214712
    Abstract: A method of servicing a wellbore comprising introducing to the wellbore a wellbore servicing fluid comprising an additive composition comprising a polysaccharide having carboxylate and sulfonate groups. A method of servicing a wellbore comprising preparing at the well site an additive composition comprising a polysaccharide having carboxylate and sulfonate groups, introducing the additive composition into a wellbore servicing fluid, and placing the wellbore servicing fluid into a subterranean formation. A method of preparing a wellbore servicing fluid comprising contacting a polysaccharide composition with an oxidizing agent to form an oxidized polysaccharide, and contacting the oxidized polysaccharide with a sulfonating agent to form a carboxylated sulfonated polysaccharide, and contacting the carboxylated sulfonated polysaccharide with a wellbore servicing fluid.
    Type: Application
    Filed: April 30, 2012
    Publication date: August 23, 2012
    Applicant: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: B. Raghava Reddy, Anindya Ghosh, Russell Fitzgerald
  • Publication number: 20120202717
    Abstract: A method of treating a subterranean formation including emplacing in a wellbore a fluid, comprising an oleaginous continuous phase, a non-oleaginous discontinuous phase, an emulsifier, at least one degradable material, and at least one bridging material, and contacting the formation with the fluid. A method and apparatus related to an invert emulsion fluid loss pill including an oleaginous continuous phase, a non-oleaginous discontinuous phase, an emulsifier, at least one degradable material, wherein the degradable material hydrolyzes to release an organic acid, and at least one bridging material.
    Type: Application
    Filed: April 20, 2012
    Publication date: August 9, 2012
    Applicants: MI L.L.C., SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Oscar Bustos, Chau Nguyen, Syed Ali
  • Publication number: 20120108472
    Abstract: A method is disclosed for reducing lost circulation in drilling wells, employing composite materials as lost circulation materials. The composites comprise a thermoplastic polymer and cellulosic fibers. Optionally the composites may include other components such as calcium carbonate, clay, oil and other blending agents.
    Type: Application
    Filed: August 11, 2009
    Publication date: May 3, 2012
    Inventor: Qinglin Wu
  • Patent number: 8138124
    Abstract: A drilling fluid includes a base fluid and a circulation loss reducing additive package having a polysaccharide, a cellulose derivative and a pH controlling component.
    Type: Grant
    Filed: August 5, 2009
    Date of Patent: March 20, 2012
    Assignee: Intevep, S.A.
    Inventors: Sarkis Kakadjian, Jacques Reinaldo Gabay, Gerardo Alonso Sanchez
  • Publication number: 20120028854
    Abstract: The disclosure relates to a drilling fluid having a viscosity at 40° C. less than or equal to 2.5 mm2/s and having a vapor pressure at 100° C. less than or equal to 10 mBars (1 KPa) obtained from a hydrocarbon fraction having a distillation temperature of 200 to 280° C. and a naphthene hydrocarbon content of less than 40 wt % of the fraction.
    Type: Application
    Filed: April 14, 2010
    Publication date: February 2, 2012
    Applicant: TOTAL RAFFINAGE MARKETING
    Inventor: Samia Lamrani-Kern
  • Publication number: 20120015852
    Abstract: Nanomaterial compositions are useful for applications in drilling and completion fluids as enhancers of electrical and thermal conductivity, emulsion stabilizers, wellbore strength improvers, drag reduction agents, wettability changers, corrosion coating compositions and the like. These nanomaterials may be dispersed in the liquid phase in low volumetric fraction, particularly as compared to corresponding agents of larger size. Nanofluids (fluids containing nano-sized particles) may be used to drill at least part of the wellbore. Nanofluids for drilling and completion applications may be designed including nanoparticles such as carbon nanotubes. These fluids containing nanomaterials, such as carbon nanotubes, meet the required rheological and filtration properties for application in challenging HPHT drilling and completions operations.
    Type: Application
    Filed: June 22, 2011
    Publication date: January 19, 2012
    Applicant: Baker Hughes Incorporated
    Inventors: Lirio Quintero, Antonio Enrique Cardenas, David E. Clark
  • Publication number: 20110312857
    Abstract: Drilling, drill-in and completion fluids containing nanoparticles for use in hydrocarbon drilling and recovery processes and methods related thereto are provided. The fluids also include a dual acting shield agent that shields the nanoparticles and also acts as a viscosifier. The fluids can be used in various types of hydrocarbon drilling and recovery processes, such as drilling, drill in, completion, and the like.
    Type: Application
    Filed: June 16, 2010
    Publication date: December 22, 2011
    Inventors: Md. Amanullah, Ziad Al-Abdullatif
  • Patent number: 8071512
    Abstract: An annular fluid or packer fluid, and methods of making the same, that includes a water-miscible solvent, a viscosifying additive, a crosslinking agent, a crosslinking inhibitor having the facility to inhibit crosslinking between the viscosifying additive and the crosslinking agent, and an initiating agent having the facility to overcome an action of the crosslinking inhibitor and to initiate crosslinking between the viscosifying additive and the crosslinking agent, is shown and described. The fluid has a thermal conductivity of no more than about 0.25 btu/(hr·ft·° F.) and a potential to substantially increase its viscosity upon sitting for a selected period of time.
    Type: Grant
    Filed: October 12, 2010
    Date of Patent: December 6, 2011
    Assignee: M-I L.L.C.
    Inventors: Andrew G. K. Jones, Bethicia B. Prasek, Robert L. Horton
  • Publication number: 20110230376
    Abstract: A water-based polymer drilling fluid, containing effective quantities of surfactants having HLB numbers equal to or greater than approximately 7, emulsifies oil and bitumen contained in oil sand cuttings, resulting in the oil and bitumen being dispersed into the mud as an emulsion. This eliminates or significantly reduces the ability of the oil, bitumen, and cuttings to clog the well or stick to drill string components when drilling a well through oil-bearing sands, particularly sands containing highly viscous oil or bitumen. The emulsification process separates the sand particles from the oil and bitumen, such that the sand particles can be removed when the mud is run through a conventional shale shaker or other suitable apparatus.
    Type: Application
    Filed: May 30, 2011
    Publication date: September 22, 2011
    Inventor: Jay BROCKHOFF
  • Patent number: 7951755
    Abstract: A water-based polymer drilling fluid, containing effective quantities of surfactants having HLB numbers equal to or greater than approximately 7, emulsifies oil and bitumen contained in oil sand cuttings, resulting in the oil and bitumen being dispersed into the mud as an emulsion. This eliminates or significantly reduces the ability of the oil, bitumen, and cuttings to clog the well or stick to drill string components when drilling a well through oil-bearing sands, particularly sands containing highly viscous oil or bitumen. The emulsification process separates the sand particles from the oil and bitumen, such that the sand particles can be removed when the mud is run through a conventional shale shaker or other suitable apparatus.
    Type: Grant
    Filed: January 9, 2007
    Date of Patent: May 31, 2011
    Inventors: An-Ming Wu, Jay Brockhoff
  • Publication number: 20110105367
    Abstract: Thermoset polymer particles are used in many applications requiring lightweight particles possessing high stiffness, strength, temperature resistance, and/or resistance to aggressive environments. The present invention relates to the use of two different methods, either each by itself or in combination, to enhance the stiffness, strength, maximum possible use temperature, and environmental resistance of such particles. One method is the application of post-polymerization process steps (and especially heat treatment) to advance the curing reaction and to thus obtain a more densely crosslinked polymer network. In general, its main benefits are the enhancement of the maximum possible use temperature and the environmental resistance. The other method is the incorporation of nanofillers, resulting in a heterogeneous “nanocomposite” morphology. In general, its main benefits are increased stiffness and strength.
    Type: Application
    Filed: December 29, 2010
    Publication date: May 5, 2011
    Applicant: SUN DRILLING PRODUCTS CORPORATION
    Inventors: Jozef BICERANO, Robert L. ALBRIGHT
  • Patent number: 7935660
    Abstract: A process for producing a self-disrupting filter cake in an underground formation, which process comprises: (a) incorporating into a drilling fluid a solid polymer capable of being converted by hydrolysis into one or more organic acids; (b) using the drilling fluid to drill a wellbore into the underground formation such that the solid polymer in the drilling fluid contributes to the formation of a filter cake; and (c) allowing the solid polymer to hydrolyse in the presence of water and to disrupt the integrity of the filter cake. A drilling fluid which contains as a bridging agent one or more solid polymers capable of being converted by hydrolysis into one or more organic acids is also provided.
    Type: Grant
    Filed: March 24, 2005
    Date of Patent: May 3, 2011
    Assignee: Cleansorb Limited
    Inventors: Ralph Edmund Harris, Ian Donald McKay
  • Publication number: 20110048716
    Abstract: The invention relates to compositions and methods relating to treatment fluids that comprise transient polymer networks in subterranean applications. In one aspect, the invention provides a method comprising: providing a treatment fluid comprising an aqueous base fluid and a transient polymer network, and placing the treatment fluid in a subterranean formation. In another aspect, the invention provides a subterranean treatment fluid comprising: an aqueous-base fluid and a transient polymer network.
    Type: Application
    Filed: August 31, 2009
    Publication date: March 3, 2011
    Inventor: Ryan G. Ezell
  • Patent number: 7829509
    Abstract: An annular fluid or packer fluid, and methods of making the same, that includes a water-miscible solvent, a viscosifying additive, a crosslinking agent, a crosslinking inhibitor having the facility to inhibit crosslinking between the viscosifying additive and the crosslinking agent, and an initiating agent having the facility to overcome an action of the crosslinking inhibitor and to initiate crosslinking between the viscosifying additive and the crosslinking agent, is shown and described. The fluid has a thermal conductivity of no more than about 0.25 btu/(hr·ft·° F.) and a potential to substantially increase its viscosity upon sitting for a selected period of time.
    Type: Grant
    Filed: March 1, 2005
    Date of Patent: November 9, 2010
    Assignee: M.I. L.L.C.
    Inventors: Andrew G. K. Jones, Bethicia B. Prasek, Robert L. Horton
  • Patent number: 7825072
    Abstract: An inhibitive water-based polymer mud system and method for using the system in drilling and in stabilizing wellbores is disclosed for use in water sensitive formations as an alternative to oil-based muds. The system comprises a substantially non-ionic low molecular weight polyacrylamide in combination with a substantially non-ionic high molecular weight polyacrylamide, preferably long chain alcohol or an amine or silicate shale inhibitor, and poly anionic cellulose.
    Type: Grant
    Filed: September 19, 2008
    Date of Patent: November 2, 2010
    Assignee: Halliburton Energy Services Inc.
    Inventors: David L. Carbajal, William Shumway, Ryan G. Ezell
  • Publication number: 20100193244
    Abstract: Generally, the present invention provides drilling fluid additives for reducing or controlling lost circulation in a drilling operation. The additives comprises particles. The particles comprise one or more solids in association a wax or waxy substance. A drilling fluid comprising a drilling fluid additive of the invention is also provided, as well as a method and use of the drilling fluid additive in a drilling operation to reduce or control lost circulation. Methods for manufacturing the drilling fluid additives are also described.
    Type: Application
    Filed: July 4, 2008
    Publication date: August 5, 2010
    Applicant: CANADIAN ENERGY SERVICES, L.P.
    Inventor: Terry W. Hoskins
  • Publication number: 20100197527
    Abstract: Treatments fluids relating to the hydrolysis of water-hydrolysable materials are provided. In one embodiment, provided is a treatment fluid that comprises an aqueous liquid, a water-miscible solvent, and a water-hydrolysable material. Also provided is a hydrolysis retarder composition that comprises an aqueous liquid and a water-miscible solvent.
    Type: Application
    Filed: April 14, 2010
    Publication date: August 5, 2010
    Inventors: Bradley L. Todd, Karen Savery
  • Patent number: 7749941
    Abstract: The invention provides aqueous based well drilling and servicing fluids containing a polymer viscosifier with enhanced thermal stability provided by a diacid or diacid salt preferably having about two to about eight carbon atoms, such as, for example, sodium oxalate. The invention also provides a method of enhancing the thermal stability of aqueous based well drilling and servicing fluids containing a polymer viscosifer by adding diacid or diacid salt to the fluids.
    Type: Grant
    Filed: December 24, 2003
    Date of Patent: July 6, 2010
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Jody L. Maresh, William W. Shumway, Kenneth W. Pober
  • Patent number: 7741247
    Abstract: A region of a borehole with one or more openings to be sealed off, such as one or more fractures, voids, and or pores, may or may not be sealed off around a tubular string with a borehole seal such as a packer or plug. A carrying fluid may be utilized to transport a filtration material into the opening to create a bridge, which at least partially seals the opening, but still provides a flow path that permits fluid flow therethrough. A solid material and/or settable material may then utilize the fluid flow subsequently or be simultaneously spotted with or behind the filtration material to thereby form compositions which effectively seals off the flow path into the one or more openings.
    Type: Grant
    Filed: February 7, 2007
    Date of Patent: June 22, 2010
    Inventor: Ling Wang
  • Patent number: 7713917
    Abstract: A thermal insulating composition containing an organic solvent of low thermal conductivity and a gelling agent hydratable in the solvent is useful for controlling heat transfer from a production tubing or transfer pipe in a wellbore to a surrounding annuli and/or the environment. Further, the composition is capable of reducing convection flow velocity within the annulus surrounding production tubing or a transfer pipe.
    Type: Grant
    Filed: May 8, 2006
    Date of Patent: May 11, 2010
    Assignee: BJ Services Company
    Inventors: Xiaolan Wang, Qi Qu, Jeffrey C. Dawson, D. V. Satyanarayana Gupta