Injecting A Composition To Adjust The Permeability (e.g., Selective Plugging) Patents (Class 166/270)
  • Patent number: 10429528
    Abstract: Uncertainty of microseismic monitoring results can be reduced to improve hydraulic fracture modeling. A computing device can use a fracture model to determine a predicted geometry of a hydraulic fracture in a subterranean formation based on properties of a fracturing fluid that is introduced into the subterranean formation. An uncertainty index of the predicted geometry of the hydraulic fracture can be determined based on an uncertainty value of the predicted geometry and a trend of uncertainty values. When the injection flow rate of the fracturing fluid is less than a maximum flow rate, it can be increased from an initial injection flow rate to an increased injection flow rate in response to determining the uncertainty index exceeds a pre-set maximum.
    Type: Grant
    Filed: November 19, 2014
    Date of Patent: October 1, 2019
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Jason D. Dykstra, Zhijie Sun
  • Patent number: 10370585
    Abstract: Method are provided for treating a wellbore or subterranean hydrocarbon-bearing formation to increase hydrocarbon recovery from the formation by in-depth mobility control and/or fluid diversion conformance by introducing a water soluble acrylamide polymer and a non-metallic organic crosslinking agent, or a crosslinkable acrylamide polymer, into an injection fluid entering the wellbore or the formation.
    Type: Grant
    Filed: November 23, 2016
    Date of Patent: August 6, 2019
    Assignee: Ecolab USA Inc.
    Inventors: Michael L. Szalai, Mei Liu, Kin-Tai Chang
  • Patent number: 10344203
    Abstract: A method of recovering a hydrocarbon material from a subterranean formation comprises forming a working fluid comprising substantially solid particles and an at least partially gaseous base material, the substantially solid particles exhibiting a greater heat capacity than the at least partially gaseous base material. The working fluid is introduced into a subterranean formation containing a hydrocarbon material to heat and remove the hydrocarbon material from the subterranean formation. An additional method of recovering a hydrocarbon material from a subterranean formation, and a working fluid are also described.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: July 9, 2019
    Assignee: Baker Hughes, a GE company, LLC
    Inventors: Soma Chakraborty, Michael H. Johnson
  • Patent number: 10337282
    Abstract: Systems, compositions, and methods for reducing the production of water in subterranean formations having fractures or voids therein are provided. In one embodiment, the methods comprise: introducing a particulate material into a portion of a subterranean formation comprising one or more fractures or voids; and introducing a treatment fluid comprising a relative permeability modifier into the portion of the subterranean formation such that the permeability of the particulate material in the portion of the subterranean formation to water is reduced.
    Type: Grant
    Filed: March 26, 2015
    Date of Patent: July 2, 2019
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Jose R. Sierra, Julio E. Vasquez, Victor Daniel Escobar, Victor Manuel Cancino, Larry Steven Eoff, Cristian R. Ramirez
  • Patent number: 10253609
    Abstract: Methods for acid diversion in a hydrocarbon-containing subterranean formation are disclosed. The methods include injecting an acid diversion agent comprising a water-soluble or dispersible branched polyhydroxyetheramine and injecting an acidic solution into a well which is in contact with the hydrocarbon-containing subterranean formation. Preferably, the acid solution is diverted toward a zone of the formation that has a lower permeability to fluid than an adjacent zone. This process improves the permeability of the hydrocarbon-containing subterranean formation to hydrocarbons, while decreasing the permeability of the formation to water or brine.
    Type: Grant
    Filed: April 29, 2014
    Date of Patent: April 9, 2019
    Assignee: Ecolab USA Inc.
    Inventors: Kin-Tai Chang, Eldon Dwyann Dalrymple
  • Patent number: 10227746
    Abstract: A method of limiting or reducing permeability of a matrix to liquid or gas flow is described. The method includes limiting inflow of water and/or gas into passages such as cavities, fissures, voids and the like, encountered in formations such as geological formations. The method includes steps of measuring one or more parameters relating to the matrix and selecting one or more components of a multi-component sealing composition with reference to the measured parameters. The selected components are introduced into the passage where it is set or coagulated to form a seal. Method is also described whereby the passage is sealed with a sealing composition comprising a grout component and a grout curing agent. A portion of the grout component is mixed with a portion of grout curing agent, the ratio of each being selected with reference to the measured parameters. The combined grout/curing agent are introduced into the passage where rate of curing or setting is controlled by modifying the ratio.
    Type: Grant
    Filed: May 23, 2013
    Date of Patent: March 12, 2019
    Assignees: Relborgn Pty Ltd, Triomviri Pty Ltd
    Inventors: Deon Van Dyk, Nico Johan Grobler
  • Patent number: 10214679
    Abstract: A composition including crosslinked expandable polymeric microparticles capable of hydrolysis at or below neutral pH and a method of modifying the permeability to water of a subterranean formation by introducing such compositions into the subterranean formation. This disclosure further relates to compositions and methods for the recovery of hydrocarbon fluids from a subterranean reservoir or formation subjected to CO2 or CO2 Water Alternating Gas flooding at low pH and increases the mobilization and/or recovery rate of hydrocarbon fluids present in the subterranean formations.
    Type: Grant
    Filed: July 21, 2015
    Date of Patent: February 26, 2019
    Assignee: Ecolab USA Inc.
    Inventors: Pious V. Kurian, Mingli Wei, Kin-Tai Chang
  • Patent number: 10215007
    Abstract: A method for consolidating a proppant in a formation comprises injecting in the formation a composition comprising an enzyme and a substrate. The enzyme and the substrate may react, optionally in the presence of a precipitating compound, to form a solid precipitate on the surface of proppant particles to consolidate the proppant in situ, e.g., in one or more fractures of the formation.
    Type: Grant
    Filed: December 17, 2014
    Date of Patent: February 26, 2019
    Assignee: Maersk Olie OG Gas A/S
    Inventor: Bhagwan Dass Bansal
  • Patent number: 10150907
    Abstract: Methods involving the sequential application of surfactants to improve fluid recovery and control fluid loss in conjunction with subterranean fracturing treatments are provided. In one embodiment, the methods comprise: introducing a first surfactant into a portion of a subterranean formation; allowing the first surfactant to increase the oil-wettability of at least a portion of a fracture face in the portion of the subterranean formation; ceasing the introduction of the first surfactant into the portion of the subterranean formation; introducing a second surfactant into the portion of the subterranean formation; and allowing the second surfactant to increase the water-wettability of the portion of the fracture face in the portion of the subterranean formation.
    Type: Grant
    Filed: September 26, 2013
    Date of Patent: December 11, 2018
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Jim Weaver, Michael McCabe
  • Patent number: 10077397
    Abstract: A method of servicing a wellbore in a subterranean formation comprising placing a wellbore servicing fluid in the wellbore and/or subterranean formation, wherein the wellbore servicing fluid comprises a hydrophobically modified relative permeability modifier, an oxygenated alkylating agent, and an aqueous base fluid, and allowing the wellbore servicing fluid to modify the permeability of at least a portion of the wellbore and/or subterranean formation.
    Type: Grant
    Filed: July 20, 2016
    Date of Patent: September 18, 2018
    Assignee: Halliburton Energy Services, Inc.
    Inventors: B. Raghava Reddy, Larry S. Eoff, Christopher A. Lewis, Natalie L. Pascarella
  • Patent number: 10047588
    Abstract: A method for reducing permeability in a first region of a formation, including injecting a first composition in the first region from a first location near and/or adjacent the first region; and injecting a second composition in the first region from a second location near and/or adjacent the first region, wherein the first composition and the second composition are configured to react so as to form a reaction product capable of reducing the permeability in at least a portion of the first region.
    Type: Grant
    Filed: July 30, 2014
    Date of Patent: August 14, 2018
    Assignee: Maersk Olie OG Gas A/S
    Inventors: Martin Bennetzen, Kristian Mogensen
  • Patent number: 10035948
    Abstract: Various embodiments disclosed related to compositions and methods of using the same for treating subterranean formations. In various embodiments, the present invention provides a method of treating a subterranean formation. The method includes placing in a subterranean formation a composition that includes a viscosifier and that also includes a hydrophobically-modified polymer including at least one nitrogen-containing repeating unit.
    Type: Grant
    Filed: November 6, 2014
    Date of Patent: July 31, 2018
    Assignee: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Bradley J. Sparks, Loan K. Vo, Jimmie Dean Weaver, Jr., Christopher Parton, Jessica L. Heeter
  • Patent number: 9957779
    Abstract: Methods and compositions for the prevention of the formation, breakdown, and/or removal of gelled layers in an oil and/or gas well are provided. In some embodiments, the compositions and methods comprise a concentrate, as described in more detail herein, where the concentrate comprises two or more surfactants. In certain embodiments, the compositions and methods comprise an emulsion or a microemulsion. The emulsion or microemulsion may include a surfactant, optionally a solvent, and optionally a freezing point depression agent or other components.
    Type: Grant
    Filed: July 28, 2015
    Date of Patent: May 1, 2018
    Assignee: Flotek Chemistry, LLC
    Inventors: Angus Fursdon-Welsh, James Silas, Monica Gonzalez-Roldan
  • Patent number: 9945219
    Abstract: A process for producing mineral oil from mineral oil deposits, in which the mineral oil yield is increased by blocking highly permeable regions of the mineral oil formation by separate injection of at least one acidic formulation which comprises water-soluble Al(III) salts, and one urea- or urea derivative-comprising formulation into the deposit, said formulations not mixing with one another until within the deposit, and the mixture forming highly viscous gels under the influence of the deposit temperature. The process can be used especially in the final stage of deposit development, when watering out in production increases, and particularly after the steam flooding of the deposits.
    Type: Grant
    Filed: October 3, 2011
    Date of Patent: April 17, 2018
    Assignee: WINTERSHALL HOLDING GMBH
    Inventors: Vladimir Stehle, Konrad Siemer, Liubov Altunina, Vladimir A. Kuvshinov, Ivan Kuvshinov
  • Patent number: 9938461
    Abstract: Process for soil conditioning includes applying to the soil a composition comprising at least a water soluble or swellable polymer. The composition has a particulate form and is applied by an aerial application. The process is suitable for soil conditioning and for reduction in soil erosion in agriculture, forestry, construction and civil engineering, mining, water storage and transportation, protection of rivers and delta against pollution, environmental conservation.
    Type: Grant
    Filed: November 3, 2014
    Date of Patent: April 10, 2018
    Assignee: S.P.C.M. SA
    Inventors: Paul Whitwell, Willard Griffin, Peter Nichols
  • Patent number: 9890624
    Abstract: Systems and methods for the treatment of oil and/or gas wells are generally provided. In some embodiments, a reservoir comprising oil and/or gas may contain regions that differ in permeability to the drive fluid used to displace the oil and/or gas. The higher permeability region(s) may limit oil and/or gas recovery from lower permeability regions. A method of enhancing oil and/or gas recovery in such a reservoir may comprise injecting a fluid comprising a microemulsion into the reservoir prior to obstructing one or more region (e.g., higher permeability regions) of the reservoir. The use of a microemulsion prior to obstructing one or more region of the reservoir may enhance the barrier properties of the resulting obstruction. In some embodiments, injecting a fluid comprising a microemulsion into the reservoir may also increase the overall production of the oil and/or gas well lacking the microemulsion treatment.
    Type: Grant
    Filed: February 27, 2015
    Date of Patent: February 13, 2018
    Assignee: Eclipse IOR Services, LLC
    Inventor: J. Thomas Portwood
  • Patent number: 9890625
    Abstract: Systems and methods for the treatment of oil and/or gas wells are generally provided. In some embodiments, a reservoir comprising oil and/or gas may contain regions that differ in permeability to the drive fluid used to displace the oil and/or gas. The higher permeability region(s) may limit oil and/or gas recovery from lower permeability regions. A method of enhancing oil and/or gas recovery in such a reservoir may comprise injecting a fluid comprising a microemulsion into the reservoir prior to obstructing one or more region (e.g., higher permeability regions) of the reservoir. The use of a microemulsion prior to obstructing one or more region of the reservoir may enhance the barrier properties of the resulting obstruction. In some embodiments, injecting a fluid comprising a microemulsion into the reservoir may also increase the overall production of the oil and/or gas well lacking the microemulsion treatment.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: February 13, 2018
    Assignee: Eclipse IOR Services, LLC
    Inventor: J. Thomas Portwood
  • Patent number: 9869156
    Abstract: Clay-based retarders may be useful in delaying the gel time of a gellable treatment fluid and, consequently, subterranean operations. For example, a method may involve providing a gellable treatment fluid comprising: an aqueous base fluid; a base polymer comprising an acrylamide monomer unit; a polymeric organic crosslinking agent comprising a crosslinkable polymer selected from the group consisting of polyethyleneimine, polyvinylamine, chitosan, any derivative thereof, any salt thereof, and any combination thereof; and a clay-based gel retarder; introducing the gellable treatment fluid into a wellbore penetrating a subterranean formation; and forming a gel with the gellable treatment fluid in at least a portion of the wellbore, at least a portion of the subterranean formation, or both. In some instances, producing the gellable treatment fluid may involve not pre-hydrating the clay-based gel retarder.
    Type: Grant
    Filed: October 22, 2013
    Date of Patent: January 16, 2018
    Assignee: Halliburton Energy Services, Inc.
    Inventors: B. Raghava Reddy, Larry Eoff, Natalie Pascarella
  • Patent number: 9840661
    Abstract: Methods of stabilizing swellable clays in a subterranean formation and methods of reducing the formation of sludge in a subterranean formation using a biopolymer based cationic surfactant are described. The biopolymer based cationic surfactant includes a quaternary ammonium compound having an alkyl polyglucoside backbone and amino alcohol side chains.
    Type: Grant
    Filed: August 14, 2015
    Date of Patent: December 12, 2017
    Assignee: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Snehalata Sachin Agashe, Ravikant S. Belakshe
  • Patent number: 9797213
    Abstract: A hydrated inorganic oxide material capable of elongating from a planar shape to a fiber shape along a thickness direction of the planar shape, wherein the fiber shape is at least about 25 times greater in the thickness direction than the planar shape, and wherein during elongating a radial dimension of the hydrated inorganic oxide material changes by less than about 10% may be useful in a plurality of wellbore operations. For example, a method may include introducing a wellbore fluid comprising an aqueous base fluid and a hydrated inorganic oxide material into a wellbore penetrating a subterranean formation; and swelling the hydrated inorganic oxide material by contacting the hydrated inorganic oxide material with a polar amine compound such that the hydrated inorganic oxide material elongates from a planar shape to a fiber shape along a thickness direction of the planar shape.
    Type: Grant
    Filed: October 22, 2013
    Date of Patent: October 24, 2017
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Matthew L. Miller, Robert J. Murphy, Kay Ann Galindo
  • Patent number: 9784079
    Abstract: A method may comprise reacting components comprising functionalized silica nanoparticles and a crosslinkable component in a subterranean formation to create a barrier in the subterranean formation, wherein the functionalized silica nanoparticles comprise at least one functional group selected from the group consisting of amino groups, thiol groups, and combinations thereof.
    Type: Grant
    Filed: June 29, 2015
    Date of Patent: October 10, 2017
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Rajender Salla, Vilas Ramtenki, Shoy George Chittattukara, Neelam Deepak Raysoni
  • Patent number: 9702217
    Abstract: A sealing system comprises an article including a swellable composition comprising an elastomer and a super absorbent material; and an ion reducing material disposed with the swellable composition, the ion reducing material comprising one or more of the following: a chelating agent; a cation precipitating agent; or an anion precipitating agent.
    Type: Grant
    Filed: May 5, 2015
    Date of Patent: July 11, 2017
    Assignee: BAKER HUGHES INCORPORATED
    Inventors: Rostyslav Dolog, Oleg A. Mazyar, Sankaran Murugesan, Valery N. Khabashesku
  • Patent number: 9701891
    Abstract: Method of fracturing subterranean formations using aqueous compositions comprising at least an aqueous base fluid, proppants, a viscosifier, at least one flowback aid and removing at least a portion of the aqueous fracturing fluid from the formation after fracturing. The flowback aid is selected from the group of alkyl or alkenyl polyglucosides, carboxylated alkyl or alkenyl polyglucosides and alkoxylated branched alcohols.
    Type: Grant
    Filed: January 3, 2014
    Date of Patent: July 11, 2017
    Assignees: BASF SE, BASF Corporation
    Inventors: Vandana Kurkal-Siebert, Jack Tinsley, Tanhee Galindo, Rimassa Shawn
  • Patent number: 9663704
    Abstract: Process for the enhanced recovery of oil comprising introducing into an injection fluid at least one linear or structured water-soluble copolymer obtained by polymerization of 2-acrylamido-2-methylpropane sulfonic acid monomer in free acid and/or salified form with acrylamide derivative monomers having the formula H2C?CR—C(?O)-A in which R is H or CH3 or CH2COOR?, wherein R? is an alkyl containing not more than 3 carbon atoms, and A is selected from the group consisting of 2-pyrrolidone, pyrrolidine and 4-morpholine, and injecting the injection fluid, which is then viscosified, into a reservoir, and thereafter recovering the aqueous and oily and/or gaseous mixture.
    Type: Grant
    Filed: January 14, 2013
    Date of Patent: May 30, 2017
    Assignee: S.P.C.M. SA
    Inventor: Cedrick Favero
  • Patent number: 9663706
    Abstract: A method of treating a geologic formation including injecting into a wellbore a high viscosity composition which comprises a base fluid wherein the base fluid has an initial viscosity of 100 cP or greater and which exhibits a decrease in viscosity upon exposure to a viscosity reducing agent, and fibers wherein the fibers exhibit flocking upon a decrease in the viscosity of the base fluid, and injecting into the wellbore a viscosity reducing agent wherein the viscosity reducing agent is injected into the wellbore with or separately from the high viscosity composition is provided.
    Type: Grant
    Filed: November 12, 2010
    Date of Patent: May 30, 2017
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Diankui Fu, Elena Nikolaevna Tarasova, Vadim Kamil'evich Khlestkin, Dmitry Ivanovich Potapenko, Vladimir Sergeevich Bugrin
  • Patent number: 9644131
    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: Grant
    Filed: June 1, 2012
    Date of Patent: May 9, 2017
    Assignee: CP Kelco Oy
    Inventor: Antonius Franciscus Maas
  • Patent number: 9631135
    Abstract: Process for enhanced oil recovery employing an aqueous solution comprising at least one linear or structured water-soluble copolymer obtained by polymerization: of at least 10 mol % of 2-acrylamido-2-methylpropanesulfonic acid monomer in the free acid and/or salified form, of at least 10 mol % of at least one comonomer chosen from the group consisting of acrylamide, N-vinylpyrrolidone (NVP) and acrylamide-derived monomers of formula (I): in which: R=H or CH3 or CH2COOR?, where R? is an alkyl comprising at most 3 carbon atoms, A is an N heterocycle comprising, in its ring, from 4 to 6 carbon atoms and optionally an ether functional group or a ketone functional group.
    Type: Grant
    Filed: January 14, 2013
    Date of Patent: April 25, 2017
    Assignee: S.P.C.M. SA
    Inventors: Cèdrick Favero, Sylvain Darras, Bruno Giovannetti
  • Patent number: 9599750
    Abstract: Systems, methods, and computer programs for monitoring production of fluids from a subterranean formation includes receiving, from a first sensor array at a first time, a first set of electromagnetic signals generated by an electro seismic or seismoelectric conversion of seismic signals caused, at least in part, by the production of fluid from the subterranean formation; receiving, from the first sensor array at a second time, a second set of electromagnetic signals generated by an electroseismic or seismoelectric conversion of seismic signals caused, at least in part, by the production of fluid from the subterranean formation; and determining one or more reservoir properties based, at least in part, on the first and second sets signals received from the first sensor array. The first sensor array is arranged to monitor the production operation.
    Type: Grant
    Filed: October 13, 2014
    Date of Patent: March 21, 2017
    Assignee: Hunt Energy Enterprises L.L.C.
    Inventors: Arthur Thompson, Alan Katz, Robert England, Todd W. Benson, Mark Griffin
  • Patent number: 9458023
    Abstract: Embodiments of the invention relate to methods for making and compositions including aqueous alkali aluminosilicates used for conformance. The aqueous alkali aluminosilicates provide similar reaction characteristics of alkali silicates, and in addition provide enhanced conformance properties due to their ability to crystallize.
    Type: Grant
    Filed: September 9, 2013
    Date of Patent: October 4, 2016
    Assignee: PQ CORPORATION
    Inventors: Michael J. McDonald, Neil Miller, Janice Hamilton
  • Patent number: 9424667
    Abstract: A system including a display for displaying a comparison between a calculated energy value and a desired energy value of a drilling system, the display including a first portion defining a first potential operational issue, a second portion defining a second potential operational issue, a third portion defining a third potential operational issue, and a fourth portion indicating the comparison between the calculated energy value compared and the desired energy value of the drilling system.
    Type: Grant
    Filed: November 21, 2012
    Date of Patent: August 23, 2016
    Assignee: Schlumberger Technology Corporation
    Inventors: Cesar Pena, Dietmar J. Neidhardt
  • Patent number: 9388335
    Abstract: A well treatment fluid comprising a Pickering particle emulsion comprising particles of a first liquid phase dispersed in a continuous second liquid phase, and comprising a plurality of colloidal particles adsorbed to a liquid-liquid interface between the first liquid phase and the second liquid phase. Methods, equipment and/or systems for treating a subterranean formation utilizing such treatment fluids are also disclosed.
    Type: Grant
    Filed: July 25, 2013
    Date of Patent: July 12, 2016
    Assignee: Schlumberger Technology Corporation
    Inventors: Anthony Loiseau, Yiyan Chen
  • Patent number: 9371480
    Abstract: The invention relates to a slurry concentrate which contains a viscosity enhancing polymer and organohectorite clay, which exhibits an unexpected improvement in viscosity and syneresis while exhibiting improved safety characteristics.
    Type: Grant
    Filed: August 14, 2013
    Date of Patent: June 21, 2016
    Assignee: Elementis Specialties, Inc.
    Inventors: David Dino, Jeffrey Thompson
  • Patent number: 9366124
    Abstract: A packer on a tubing string and diverting material pumped down the tubing string may be used to isolate a fracture cluster in a multizone horizontal wellbore that has been previously hydraulically fractured. Once hydraulically isolated, fluid may be pumped down the tubing string to re-fracture the previously fractured fracture cluster in an effort to increase hydrocarbon production from the horizontal wellbore. The tubing string may include a testing device used to determine whether a specific fracture cluster within the horizontal wellbore should be re-fractured. Diverting material may be pumped down the tubing string and positioned adjacent a fracture cluster to hydraulically isolate the fracture cluster during the re-fracturing process. The diverting material may be cleaned out of the horizontal wellbore after all desired fracture clusters along the horizontal wellbore have been individually re-fractured.
    Type: Grant
    Filed: November 27, 2013
    Date of Patent: June 14, 2016
    Assignee: Baker Hughes Incorporated
    Inventors: Harold D. Brannon, Jimie DeVon Lemons
  • Patent number: 9359547
    Abstract: A method of servicing a wellbore in a subterranean formation comprising placing a wellbore servicing fluid comprising a coupling agent, a hardenable resin and a hardening agent into the wellbore wherein the coupling agent comprises a multihydroxy phenyl, a dihydroxy phenyl, a trihydroxy phenyl, ascorbic acid, a hydroxymethylnaphthol, an oxidation product thereof, a derivative thereof, or combinations thereof. A wellbore servicing fluid comprising a coupling agent, a hardenable resin, a hardening agent and a proppant wherein the coupling agent comprises a multihydroxy phenyl, a dihydroxy phenyl, a trihydroxy phenyl, ascorbic acid, a hydroxymethylphenol, a hydroxymethylnaphthol, an oxidation product thereof, a derivative thereof, or combinations thereof.
    Type: Grant
    Filed: January 31, 2013
    Date of Patent: June 7, 2016
    Assignee: Halliburton Energy Services, Inc.
    Inventors: James William Ogle, Philip D. Nguyen, Feng Liang
  • Patent number: 9157022
    Abstract: Water soluble uncrosslinked polysaccharides may be fluid loss control agents for viscoelastic surfactant (VES) fluids used for stimulation (e.g. fracturing) or well completion in hydrocarbon recovery operations. The VES fluid may further include proppant or gravel, if it is intended for use as a fracturing fluid or a gravel packing fluid, although such uses do not require that the fluid contain proppant or gravel. The water soluble uncrosslinked polysaccharide fluid loss control agents may include, but not be limited to guar gum and derivatives thereof; cellulose and derivatives thereof; propylene glycol alginate; salts (e.g. sodium, potassium, and calcium salts) of iota, kappa, and lambda carrageenan; agar-agar; xanthan gum; and the like; and/or mixtures thereof. The fluid loss control agent may be added to the aqueous viscoelastic treating fluid prior to VES addition, and/or at the same time and/or after the VES is added.
    Type: Grant
    Filed: August 31, 2011
    Date of Patent: October 13, 2015
    Assignee: Baker Hughes Incorporated
    Inventor: William Russell Wood
  • Patent number: 9120965
    Abstract: A composition comprising crosslinked expandable polymeric microparticles capable of hydrolysis at or below neutral pH and a method of modifying the permeability to water of a subterranean formation by introducing such compositions into the subterranean formation is disclosed and claimed. This invention further relates to compositions and methods for the recovery of hydrocarbon fluids from a subterranean reservoir or formation subjected to CO2 or CO2 Water Alternating Gas flooding at low pH and increases the mobilization and/or recovery rate of hydrocarbon fluids present in the subterranean formations.
    Type: Grant
    Filed: January 27, 2012
    Date of Patent: September 1, 2015
    Assignee: Nalco Company
    Inventors: Pious Kurian, Mingli Wei, Kin-Tai Chang
  • Patent number: 9121271
    Abstract: A system and method for a conformance control treatment for a subterranean reservoir are disclosed. The system and method include performing tracer analysis between an injection well and a production well. A flow capacity and storage capacity curve is constructed from the tracer analysis. A storage capacity associated with a threshold residence time is determined using the flow capacity and storage capacity curve. A conformance control treatment is determined for the storage capacity associated with the threshold residence time. A chemical slug is injected into the injection well to increase the flow resistance in high permeability regions of a subterranean reservoir.
    Type: Grant
    Filed: June 22, 2011
    Date of Patent: September 1, 2015
    Assignee: CHEVRON U.S.A. INC.
    Inventor: George Michael Shook
  • Patent number: 9117761
    Abstract: A polishing composition contains a water-soluble polymer, a polishing accelerator, and an oxidizing agent. The water-soluble polymer is a polyamide-polyamine polymer having an amine value of 150 mg KOH/1 g·solid or greater.
    Type: Grant
    Filed: August 2, 2011
    Date of Patent: August 25, 2015
    Assignee: FUJIMI INCORPORATED
    Inventors: Shuichi Tamada, Tatsuhiko Hirano, Takahiro Umeda, Kazuya Sumita, Yoshihiro Izawa
  • Patent number: 9096782
    Abstract: The present invention provides a polyester, a polyester composition and a pressure-sensitive adhesive composition capable of obtaining a pressure-sensitive adhesive which is global-environmentally friendly and is excellent in pressure-sensitive adhesion properties, using a plant-derived raw material; and a pressure-sensitive adhesive layer and a pressure-sensitive adhesive sheet which can be obtained by using the same. A polyester of the present invention is a polyester comprising at least a lactic acid unit, a dibasic acid unit and a glycol unit, wherein the dibasic acid unit contains dimer acid, and the polyester has a glass transition temperature as measured at a temperature rising rate of 20° C./minute using a differential scanning calorimeter, of ?70 to ?20° C., a weight average molecular weight of 20,000 to 300,000 and a hydroxyl value of 1 to 100 mgKOH/g.
    Type: Grant
    Filed: August 5, 2009
    Date of Patent: August 4, 2015
    Assignees: NITTO DENKO CORPORATION, Toyo Boseki Kabushiki Kaisha
    Inventors: Hitoshi Takahira, Satomi Yoshie, Tadashi Nakajima, Daiki Funaoka, Katsuya Shimeno
  • Patent number: 9010421
    Abstract: Systems and methods for analyzing produced fluids in a mature water flood (or EOR scheme) and determining whether the introduction of an EOR agent, such as a chemical or a gas additive, or some other alteration in treatment, is enhancing the recovery of hydrocarbon from parts of the reservoir otherwise untouched by injected fluids. The monitoring can be used to identify subtle changes in the produced fluid caused by their flow through different pore structures. In a carbonate formation for example, ions and salts from the rock fabric are dissolved into the reservoir fluids, whether they are water or oil. These can be detected by various fluid analysis and particularly water analysis methods. The changes in reservoir fluid paths associated with the injection of an EOR agent are detected in the observation well.
    Type: Grant
    Filed: June 15, 2012
    Date of Patent: April 21, 2015
    Assignee: Schlumberger Technology Corporation
    Inventors: Mikhail Stukan, Stephen Dyer
  • Patent number: 9004168
    Abstract: Treatment fluids comprising a silicate complexing agent can be used in conjunction with acidizing a subterranean formation that contains a siliceous material. Inclusion of the silicate complexing agent in the treatment fluids may eliminate or reduce the production of insoluble fluorosilicates and aluminosilicates that can occur when an acidizing operation is conducted. Methods for treating a subterranean formation can comprise: introducing to a subterranean formation a treatment fluid that comprises a silicate complexing agent comprising a tertiary amine compound, a functionalized pyridine compound, any salt thereof, or any combination thereof; and hydrofluoric acid, a hydrofluoric acid-generating compound, or any combination thereof.
    Type: Grant
    Filed: April 12, 2012
    Date of Patent: April 14, 2015
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Enrique A. Reyes, Alyssa L. Smith
  • Patent number: 8985206
    Abstract: A method for enhancing foam stability in foaming compositions for use in oilfield treatment application, including but not limited to use in mobility control for gas flooding. The method comprises the step of adding to a foaming composition a foam stabilizer of formula (I): wherein R1 is an alkylamido group or a branched or linear alkyl group; R2 and R3 are individually hydrogen or a methyl group; R4, R5 and R6 are individually hydrogen or a hydroxy group, with the proviso that at least one of R4, R5 or R6 is a hydroxyl group; wherein the alkyl group has greater than about 10 carbon atoms. Also disclosed are methods to enhance foam stability in an aqueous foaming composition.
    Type: Grant
    Filed: May 11, 2012
    Date of Patent: March 24, 2015
    Assignee: Rhodia Operations
    Inventors: Mikel Morvan, Max Chabert, Manilal S. Dahanayake
  • Patent number: 8985212
    Abstract: A method of servicing a wellbore in a subterranean formation comprising preparing a wellbore servicing fluid comprising a water-soluble crosslinkable composition, a particulate water-swellable superabsorber, and an aqueous base fluid, placing the fluid in a treated portion of the formation, wherein the treated portion comprises a first region having a first region permeability and a second region having a second region permeability, wherein a permeability contrast is a ratio between first region permeability and second region permeability, and wherein the permeability contrast is equal to or greater than 10 prior to placement of the fluid, allowing the superabsorber to occupy at least a portion of the first region, thereby reducing the first region permeability, and allowing the crosslinkable composition to penetrate at least a portion of the second region, thereby reducing the second region permeability, wherein the permeability contrast is reduced to less than 10 after placement of the fluid.
    Type: Grant
    Filed: July 11, 2014
    Date of Patent: March 24, 2015
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Freddy Molina Crespo, B. Raghava Reddy, Natalie Pascarella
  • Patent number: 8973659
    Abstract: A method of treating a treatment zone in a well is provided, the method including the steps of: (A) forming a treatment fluid comprising: (i) a degradable polymer particulate; (ii) a legume particulate; and (iii) a continuous liquid phase; and (B) introducing the treatment fluid into the treatment zone of the well. The invention can be used, for example, for leak-off control or fluid diversion purposes.
    Type: Grant
    Filed: May 21, 2012
    Date of Patent: March 10, 2015
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Prasad Baburao Karadkar, Yogesh Kumar Choudhary, Vijaya Kumar Patnana
  • Patent number: 8967297
    Abstract: This invention relates to the construction of well such as oil and gas wells using techniques based on drilling small lateral wells from a main well. The problem of narrow pressure window is solved by the use of constructions techniques that are based on the use of lateral boreholes, i.e. secondary boreholes that are drilled a main borehole, wherein a method of constructing a well comprises drilling a main borehole extending from the surface through one or more underground formations, drilling a plurality of lateral boreholes extending from the main borehole into surrounding formations, wherein the lateral boreholes are substantially shorter and of smaller diameter than the main borehole; and wherein each lateral borehole is separated from its neighboring lateral boreholes by a relatively short distance. Drilling of the lateral boreholes can be for to extend 5-60 meters from the main borehole with a diameter in the range 3.
    Type: Grant
    Filed: August 23, 2007
    Date of Patent: March 3, 2015
    Assignee: Schlumberger Technology Corporation
    Inventors: Jacques Orban, Claude Vercaemer, Sami Iskander
  • Patent number: 8967258
    Abstract: The invention provides formulations for facilitating the removal of oil from a surface using a chisel composition, wherein the chisel composition includes a polymer having one or more binding points with a high affinity for the surface, and one or more hydrophilic segments that form a hydrophilic coating on the surface, rendering the surface water-wet and thereby facilitating the removal of oil from the surface. The invention also provides for methods of use of such formulations.
    Type: Grant
    Filed: May 9, 2011
    Date of Patent: March 3, 2015
    Assignee: Soane Energy, LLC
    Inventors: David S. Soane, Rosa Casado Portilla, Robert P. Mahoney, Gangadhar Jogikalmath, Philip Wuthrich
  • Patent number: 8950481
    Abstract: A method of analyzing a wellbore fluid that includes treating a wellbore fluid with an emulsifying fluid, the emulsifying fluid comprising: a hydroxylated ether; an amphoteric chemotrope; and testing the treated wellbore fluid for at least one of turbidity and total suspended solids is disclosed. Methods of cleaning wellbores are also disclosed.
    Type: Grant
    Filed: November 21, 2008
    Date of Patent: February 10, 2015
    Assignee: M-I LLC
    Inventors: Eugene Dakin, Hui Zhang, Bethicia B. Prasek
  • Patent number: 8939206
    Abstract: A process for mineral oil production, in which an aqueous formulation comprising at least one water-soluble, hydrophobically associating copolymer is injected through at least one injection borehole into a mineral oil deposit, and crude oil is withdrawn from the deposit having a deposit temperature of 35° C. to 120° C., preferably 40° C. to 90° C., through at least one production borehole, wherein the water-soluble, hydrophobically associating copolymer comprises at least acrylamide or derivatives thereof, a monoethylenically unsaturated monomer having anionic groups and a monoethylenically unsaturated monomer which can bring about the association of the copolymer.
    Type: Grant
    Filed: November 23, 2011
    Date of Patent: January 27, 2015
    Assignee: BASF SE
    Inventors: Björn Langlotz, Roland Reichenbach-Klinke, Christian Spindler, Benjamin Wenzke
  • Patent number: 8900448
    Abstract: A treatment device for stormwater is provided that comprises a container which in use contains a growing medium and a hydrodynamic separator located within the container. The hydrodynamic separator comprises a separation chamber, an inlet duct extending from the outside of the container to the separation chamber, a solids outlet; and a liquid outlet that opens into the container. In use, liquid flow containing solids enters the separation chamber through the inlet duct and is caused to swirl within the separation chamber, thereby causing solids to exit the separation chamber through the solids outlet and liquid to exit the separation chamber through the liquid outlet and to flow into the growing medium.
    Type: Grant
    Filed: June 27, 2013
    Date of Patent: December 2, 2014
    Assignee: Hydro International PLC
    Inventors: Jeremy Fink, Andrew Pearson Nancollis, Robert Yaw Gyamfi Andoh, Keith Garry Hutchings
  • Publication number: 20140318773
    Abstract: A process is described for enhancing the yield of liquid products from natural gas from at least one extraction well. This process is achieved by injecting methane at a higher pressure than the rock pressure in at least one injection well site. The methane serves to maintain the pressure of gas in the formation, while also promoting the flow of liquid products away from the injection well and towards a collection well. The net effect is higher net yield of liquid products (referred to as “Y-Grade” liquids) from that well, with lower net yield of non-condensable methane. Because methane is naturally present in natural gas, the gas remaining underground is still a valuable product that can be trapped in the future. The use of the dry gas as the fracturing medium reduces or potentially eliminates the need to use water in fracturing process.
    Type: Application
    Filed: April 28, 2014
    Publication date: October 30, 2014
    Inventors: Elliot B. Kennel, James E. Smith