Well Treating Patents (Class 507/200)
  • Patent number: 11124712
    Abstract: A method of demulsifying crude oil, said method comprising the step of reacting an amount of crude oil with a polyester demulsifier, therein the demulsifier is used in quantities from 0.0001% to 5% (1-50,000 ppm), preferably 0.0005% to 2% (5-20,000 ppm), more preferably 0.0008% to 1% (8-10,000 ppm) and most preferably 0.001 to 0.1 wt. % polymer (10-1,000 ppm) related to the oil fraction of the utilized emulsion.
    Type: Grant
    Filed: November 13, 2018
    Date of Patent: September 21, 2021
    Assignee: Dow Global Technologies LLC
    Inventors: Thiago V. Alonso, Callie M. Ayers, Stephen M. Hoyles
  • Patent number: 11118095
    Abstract: Treatment fluids containing salts, surfactants, mutual solvents and fibers may be used to remove wellbore filter cakes that have been deposited by drilling fluids. The drilling fluids may be water-base, oil-base, synthetic-base or emulsions. The fibers may be selected from polylactic acid, celluloses, polyesters, polyvinyl alcohols and polyethylene terephthalates. A combination of straight and crimped fibers is present in the treatment fluid.
    Type: Grant
    Filed: September 15, 2016
    Date of Patent: September 14, 2021
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Diankui Fu, Kong Teng Ling, Daniel Thomas Melice
  • Patent number: 11084973
    Abstract: Provided herein are liquid polymer (LP) compositions comprising a synthetic (co)polymer (e.g., an acrylamide (co)polymer), as well as methods for preparing inverted polymer solutions by inverting these LP compositions in an aqueous fluid. The resulting inverted polymer solutions can have a concentration of a synthetic (co)polymer (e.g., an acrylamide (co)polymer) of from 50 to 15,000 ppm, and a filter ratio of 1.5 or less at 15 psi using a 1.2 ?m filter. Also provided are methods of using these inverted polymer solutions in oil and gas operations, including enhanced oil recovery.
    Type: Grant
    Filed: April 17, 2020
    Date of Patent: August 10, 2021
    Assignee: Chevron U.S.A. Inc.
    Inventors: Do Hoon Kim, Dennis Arun Alexis, Varadarajan Dwarakanath, David Espinosa, Taimur Malik, Logan Jackson, Tom Lynch, Ronald Robinson, Frances Fournier, Hong Yang, Sukhjit Aujla
  • Patent number: 11046881
    Abstract: Mapping propped fractures in a well can be performed using a mixture including a proppant and an encapsulated salt. The proppant can be positioned in a fracture in the well for propping open the fracture to form a propped fracture. The encapsulated salt can be positioned in the propped fracture proximate to the proppant and include a salt and a non-permeable coating. The salt can be dissolved in response to fracture closure, encapsulant degradation, or encapsulant dissolution to form an electrically conductive solution usable for mapping the propped fracture. The non-permeable coating can prevent a fluid from contacting the salt during pumping and placement operations.
    Type: Grant
    Filed: February 9, 2017
    Date of Patent: June 29, 2021
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Doug W. Walser, Ronald Glen Dusterhoft, Philip D. Nguyen
  • Patent number: 11028316
    Abstract: A hydrocarbon well remediation/stimulation treatment based on an Y-Grade natural gas liquid injection fluid mixture, including prescribed amounts of gas, nanoparticles with wettability alteration properties, foaming agents (including nanoparticles with foam stabilization properties), and solvent additives. The fluid mixture may be tuned to address multiple factors contributing to production decline, such as liquid blockage, wettability properties, fines/debris/scale build-up and organic deposits, reservoir heterogeneity/permeability, and/or reservoir fluid and hydrocarbon compositions, resulting in hydrocarbon production enhancement. The treatment is typically applied with a Huff-n-Puff process, however may also be applied with a flooding process.
    Type: Grant
    Filed: November 9, 2018
    Date of Patent: June 8, 2021
    Assignee: Linde Aktiengesellschaft
    Inventors: Naveed Aslam, Kevin G. Watts, Roberta Watts, Carl Peter Ulfson Hagenfeldt
  • Patent number: 10899953
    Abstract: A nanosilica containing fluid system for shale stabilization in a shale formation. The nanosilica containing fluid system comprising a functionalized nanosilica composition operable to react with shale at the surface of the shale formation to form a barrier on the shale formation. The functionalized nanosilica composition comprising a nanosilica particle, the nanosilica particle having a mean diameter, and a functionalization compound, the functionalization compound appended to the surface of the nanosilica particle. And an aqueous-based fluid, the aqueous-based fluid operable to carry the functionalized nanosilica composition into the shale formation. The functionalization compound is an amino silane. The aqueous-based fluid is selected from the group consisting of water, deionized water, sea water, brine, and combinations thereof.
    Type: Grant
    Filed: August 31, 2018
    Date of Patent: January 26, 2021
    Inventors: Peter J. Boul, B. Raghava Reddy, Carl Thaemlitz
  • Patent number: 10899957
    Abstract: A composition for use as a pressure-tolerant dual-crosslinker gel in a fracturing fluid that comprises polymer, the polymer operable to increase the viscosity of a fluid; boron-containing crosslinker, the boron-containing crosslinker operable to crosslink the polymer; and a transition metal oxide additive, the transition metal oxide additive operable to crosslink the polymer.
    Type: Grant
    Filed: April 24, 2020
    Date of Patent: January 26, 2021
    Inventors: Feng Liang, Ghaithan Al-Muntasheri, Abdulrahman F. Alharbi
  • Patent number: 10808160
    Abstract: A date tree fiber mix lost circulation material (LCM) is provided. The date tree fiber mix LCM may include includes date tree trunk fibers produced from date tree trunks and date tree leaf and leaf stem fibers produced from date tree leaves and leaf stems. The LCM include a mix of 30% by weight date tree trunk fibers and 70% date tree leaf and leaf stem fibers, 40% by weight date tree trunk fibers and 60% date tree leaf and leaf stem fibers, 50% by weight date tree trunk fibers and 50% date tree leaf and leaf stem fibers. Methods of lost circulation control using and manufacture of a date tree fiber mix LCM are also provided.
    Type: Grant
    Filed: February 21, 2019
    Date of Patent: October 20, 2020
    Assignee: Saudi Arabian Oil Company
    Inventor: Md Amanullah
  • Patent number: 10767096
    Abstract: A date tree fiber mix lost circulation material (LCM) is provided. The date tree fiber mix LCM may include includes date tree trunk fibers produced from date tree trunks and date tree leaf and leaf stem fibers produced from date tree leaves and leaf stems. The LCM include a mix of 30% by weight date tree trunk fibers and 70% date tree leaf and leaf stem fibers, 40% by weight date tree trunk fibers and 60% date tree leaf and leaf stem fibers, 50% by weight date tree trunk fibers and 50% date tree leaf and leaf stem fibers. Methods of lost circulation control using and manufacture of a date tree fiber mix LCM are also provided.
    Type: Grant
    Filed: February 21, 2019
    Date of Patent: September 8, 2020
    Assignee: Saudi Arabian Oil Company
    Inventor: Md Amanullah
  • Patent number: 10752832
    Abstract: Systems and methods for treating proppant to mitigate erosion of equipment used in certain subterranean fracturing operations are provided. In some embodiments, the methods comprise: conveying a plurality of coated proppant particulates into a blender, wherein the coated proppant particulates comprise at least a partial coating of DFR and/or a hydratable polymer; blending the plurality of coated proppant particulates with an aqueous base fluid in the blender to form a treatment fluid; and introducing the treatment fluid from the blender into at least a portion of a subterranean formation.
    Type: Grant
    Filed: October 3, 2019
    Date of Patent: August 25, 2020
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Philip D. Nguyen, Janette Cortez Montalvo, Jun Su An
  • Patent number: 10753189
    Abstract: A mixture of at least two shapes of a dissolvable diverter material. The shapes range from a flake having a high surface area to mass ratio to beads having a low surface area to mass ratio. The density of the various shapes may be manipulated by including voids or low-density materials within the shape. The density manipulation allows matching the transport properties of the at least two shapes to the transport fluid so that both shapes may arrive at the desired location at the desired time.
    Type: Grant
    Filed: August 22, 2018
    Date of Patent: August 25, 2020
    Assignee: DPIP, LLC
    Inventors: John A. Moisson, Jr., Nicholas Koster
  • Patent number: 10696801
    Abstract: A gas hydrate hydrogel inhibitor comprising at least one polymer hydrogel particle having from 50 to 100% hydrogel content, the at least one polymer hydrogel particle including an inhibitor selected from the group consisting of: at least one thermodynamic hydrate inhibitor, at least one kinetic hydrate inhibitor, or a combination thereof.
    Type: Grant
    Filed: May 27, 2016
    Date of Patent: June 30, 2020
    Assignee: COMMONWEALTH SCIENTIFIC AND INDUSTRIAL RESEARCH ORGANISATION
    Inventors: Colin David Wood, Yutaek Seo, Wendy Wenjun Tian
  • Patent number: 10676662
    Abstract: A mixture of at least two shapes of a dissolvable diverter material. The shapes range from a flake having a high surface area to mass ratio to beads having a low surface area to mass ratio. The density of the various shapes may be manipulated by including voids or low-density materials within the shape. The density manipulation allows matching the transport properties of the at least two shapes to the transport fluid so that both shapes may arrive at the desired location at the desired time.
    Type: Grant
    Filed: August 22, 2018
    Date of Patent: June 9, 2020
    Assignee: DPIP, LLC
    Inventors: John A. Moisson, Jr., Nicholas Koster
  • Patent number: 10669472
    Abstract: A composition for use as a pressure-tolerant dual-crosslinker gel in a fracturing fluid that comprises polymer, the polymer operable to increase the viscosity of a fluid; boron-containing crosslinker, the boron-containing crosslinker operable to crosslink the polymer; and a transition metal oxide additive, the transition metal oxide additive operable to crosslink the polymer.
    Type: Grant
    Filed: March 1, 2018
    Date of Patent: June 2, 2020
    Assignees: Saudi Arabian Oil Company, Aramco Services Company
    Inventors: Feng Liang, Ghaithan Al-Muntasheri, Abdulrahman F. Alharbi
  • Patent number: 10662369
    Abstract: A method and composition of treating an oil or gas well having a wellbore, well casing, production equipment or recovery equipment. The method involves introducing into the wellbore, well casing, production equipment or recovery equipment a high flash point solvent blend. The blend includes at least one C1-C4 ester of a C16-C20 fatty acid component, at least one terpene hydrocarbon component (e.g., a pure gum turpentine, an oil of turpentine, or mixture thereof), and optionally at least one emulsifier component. The weight percent ratio of the at least one C1-C4 ester of a C16-C20 fatty acid component to the at least one terpene hydrocarbon component is from about 60:40 weight percent to about 95:5 weight percent, based on the total weight of the blend. The blend has a flash point greater than about 140° F. The blend may be biodegradable, and has no ozone depleting compounds, no hazardous air pollutants, and no carcinogens.
    Type: Grant
    Filed: December 1, 2016
    Date of Patent: May 26, 2020
    Assignee: Ehtical Solutions, LLC
    Inventors: Daniel J. Socci, Jennifer L. Holcomb
  • Patent number: 10611955
    Abstract: A composite having a solid particulate and a surface modifying treatment agent on the solid particulate wherein the surface modifying treatment agent has a hydrophobic tail and an anchor for adhering the hydrophobic tail onto the solid particulate. The anchor is an organophosphorus acid derivative. The composite may be used as a proppant in a hydraulic fracturing operation as well as a sand control particulate in a gravel packing operation. The presence of the surface modifying treatment agent on the surface of the solid particulate reduces the generation of fines and dust as well as the migration of sand during a hydraulic fracturing operation or a sand control operation. The presence of the surface modifying treatment agent on the surface of the solid particulate further enhances the crush resistance of the solid particulate.
    Type: Grant
    Filed: July 23, 2018
    Date of Patent: April 7, 2020
    Assignee: Baker Hughes, a GE company, LLC
    Inventors: Terry D. Monroe, Brian B. Beall, Naima Bestaoui-Spurr, Sumit Bhaduri, Kimberly Spurlock Lant, Hoang Le, Qi Qu
  • Patent number: 10508529
    Abstract: Injection fluids formed of reverse emulsions and related methods of forming and using reverse emulsions for cavity control in solution mining. The reverse emulsion can reduce the volume of oil required to create an oil pad at the roof of a solution mining cavern in order to prevent vertical leaching and cavern collapse. The reverse emulsion can be formed from an emulsifier, a brine solution and oil. The emulsifier concentration can range from about 1% to about 5% by weight of the reverse emulsion. The emulsifier and the oil can be combined to form an oil/emulsifier mixture, wherein the oil/emulsifier mixture is combined with the brine solution to form the reverse emulsion. The oil/emulsifier mixture can be from about 1% to about 5% by weight of the reverse emulsion.
    Type: Grant
    Filed: June 22, 2018
    Date of Patent: December 17, 2019
    Assignee: The Mosaic Company
    Inventors: Kathlene Laurie Jacobson, Cam Thiele, Sheldon Rinas, Carey Heinbigner
  • Patent number: 10465108
    Abstract: Breakers for gelling agents are disclosed, for example pyromellitamide gelling agents. The breakers include sulfonic acids in one example.
    Type: Grant
    Filed: November 4, 2015
    Date of Patent: November 5, 2019
    Assignee: Synoil Fluids Holdings Inc.
    Inventors: Shaun T. Mesher, Chris Collett
  • Patent number: 10450208
    Abstract: Various illustrative embodiments of a process for enhanced flocculation and clarification of produced water from oil and gas wells using nanoparticles are provided herein. Certain nanoparticles can increase the settling rate of solids in produced water when used alone or combined with certain conventional flocculents.
    Type: Grant
    Filed: June 1, 2016
    Date of Patent: October 22, 2019
    Assignee: BAKER HUGHES, A GE COMPANY, LLC
    Inventors: Oleksandr Kuznetsov, Radhika Suresh, Valery Khabashesku
  • Patent number: 10429372
    Abstract: A method for measuring liquid-rock and liquid-liquid interfaces including performing at least one measurement technique proximate a subterranean rock sample and an interfacial liquid hydrocarbon fraction, where a liquid hydrocarbon fraction and the subterranean rock sample are combined to exhibit a first interface between the liquid hydrocarbon fraction and the subterranean rock sample, producing the interfacial liquid hydrocarbon fraction. The method includes performing at least one measurement technique proximate the interfacial liquid hydrocarbon fraction and a brine solution, where the liquid hydrocarbon fraction and the brine solution are combined to exhibit a second interface between the liquid hydrocarbon fraction and the brine solution, and where the measurement techniques result in measurements of the interfacial liquid hydrocarbon fraction at macro, micro to nano, nano to sub-nano, and sub-nano scales, and result in measurements of the second interface at macro and micro to nano scales.
    Type: Grant
    Filed: May 11, 2018
    Date of Patent: October 1, 2019
    Assignee: SAUDI ARABIAN OIL COMPANY
    Inventors: Ali Al-Yousef, Subhash Ayirala
  • Patent number: 10414965
    Abstract: A date tree fiber mix lost circulation material (LCM) is provided. The date tree fiber mix LCM may include includes date tree trunk fibers produced from date tree trunks and date tree leaf and leaf stem fibers produced from date tree leaves and leaf stems. The LCM include a mix of 30% by weight date tree trunk fibers and 70% date tree leaf and leaf stem fibers, 40% by weight date tree trunk fibers and 60% date tree leaf and leaf stem fibers, 50% by weight date tree trunk fibers and 50% date tree leaf and leaf stem fibers. Methods of lost circulation control using and manufacture of a date tree fiber mix LCM are also provided.
    Type: Grant
    Filed: August 7, 2018
    Date of Patent: September 17, 2019
    Assignee: Saudi Arabian Oil Company
    Inventor: Md Amanullah
  • Patent number: 10336930
    Abstract: A date tree fiber mix lost circulation material (LCM) is provided. The date tree fiber mix LCM may include includes date tree trunk fibers produced from date tree trunks and date tree leaf and leaf stem fibers produced from date tree leaves and leaf stems. The LCM include a mix of 30% by weight date tree trunk fibers and 70% date tree leaf and leaf stem fibers, 40% by weight date tree trunk fibers and 60% date tree leaf and leaf stem fibers, 50% by weight date tree trunk fibers and 50% date tree leaf and leaf stem fibers. Methods of lost circulation control using and manufacture of a date tree fiber mix LCM are also provided.
    Type: Grant
    Filed: June 19, 2017
    Date of Patent: July 2, 2019
    Assignee: Saudi Arabian Oil Company
    Inventor: Md Amanullah
  • Patent number: 10294757
    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 21, 2019
    Assignee: Flotek Chemistry, LLC
    Inventors: Angus Fursdon-Welsh, James Silas, Monica Smith-Gonzalez
  • Patent number: 10240081
    Abstract: Disclosed herein are crosslinker compositions for aqueous hydroxyl functional polymers. The compositions include at least one borate species, about 0.05 wt % to 10 wt % of a synthetic layered silicate, and a water source. The compositions are characterized by shelf stability, wherein the sparingly soluble borate does not undergo sedimentation. The crosslinker compositions are usefully added to aqueous polymer solutions of hydroxyl functional polymers to form injectable compositions for hydraulic fracturing.
    Type: Grant
    Filed: May 11, 2016
    Date of Patent: March 26, 2019
    Assignee: Ecolab USA Inc.
    Inventors: Olga Shchepelina, Houston Perry, Pious Kurian
  • Patent number: 10233737
    Abstract: A method of manufacturing particulate material. The method can include manufacturing particulate material during an operation at a well, injecting the particulate material into the well during the manufacturing, and changing a dimension of the particulate material during the injecting. Another method of manufacturing particulate material can include manufacturing particulate material during an operation at a well, injecting the particulate material and a proppant into the well during the manufacturing, and then the particulate material degrading in the well. Another method of manufacturing particulate material can include manufacturing particulate material during an operation at a well, fixing a shape of the particulate material by cooling the particulate material, and then injecting the particulate material into the well.
    Type: Grant
    Filed: July 17, 2014
    Date of Patent: March 19, 2019
    Assignee: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: James W. Ogle, Philip D. Nguyen
  • Patent number: 10131831
    Abstract: Method of increasing the permeability in subterranean formations comprising rock that is soluble by acid, in particular carbonatic formations, using a formulation comprising at least an acid and a retarding surfactant which is an amphoteric surfactant. Preferably, the acid comprises methanesulfonic acid.
    Type: Grant
    Filed: March 23, 2015
    Date of Patent: November 20, 2018
    Assignees: BASF SE, BASF Corporation
    Inventors: Shawn Rimassa, Walter Bertkau, Joseph Borst
  • Patent number: 10066149
    Abstract: Compositions and methods are provided for delayed breaking of viscoelastic surfactant gels inside subterranean formations. Breaking is accomplished without mechanical intervention or use of a second fluid. The delayed breaking agent is selected from alkyl ether phosphates and salts thereof, alkylaryl ether phosphates and salts thereof, alkyl sulfates and salts thereof, alkylaryl sulfates and salts thereof, alkyl ether sulfates and salts thereof, alkylaryl ether sulfates and salts thereof, and mixtures of any of the foregoing. The viscoelastic surfactant can be a zwitterionic surfactant, and can be selected from the group consisting of sultaines, betaines, and amidoamine oxides.
    Type: Grant
    Filed: November 23, 2015
    Date of Patent: September 4, 2018
    Assignee: AKZO NOBEL CHEMICALS INTERNATIONAL B.V.
    Inventors: Lingling Li, James Frederic Gadberry, Nick Henry Wolf, Jian Zhou
  • Patent number: 10053974
    Abstract: Methods of determining a pH of a wellbore fluid within a wellbore in communication with a subterranean formation comprise introducing carbon quantum dots into a wellbore fluid, exposing the wellbore fluid to radiation from an electromagnetic radiation source, and measuring at least one fluorescence property of the carbon quantum dots within the wellbore fluid to determine a pH of the wellbore fluid. Related methods of determining a pH of a fluid within a wellbore extending through a subterranean formation are also disclosed.
    Type: Grant
    Filed: July 14, 2017
    Date of Patent: August 21, 2018
    Assignee: Baker Hughes Incorporated
    Inventors: Sankaran Murugesan, Othon R. Monteiro, Valery N. Khabashesku
  • Patent number: 10005952
    Abstract: Compositions and methods for formulating acidizing treatment fluids comprising hydrofluoric acid are provided. In one embodiment, the method comprises: providing a treatment fluid comprising: an aqueous base fluid; at least one chelant; hydrofluoric acid; and at least one corrosion inhibitor; pumping the treatment fluid through a subsea riser system; and introducing the treatment fluid into a subterranean formation. In another embodiment, the method comprises: providing a treatment fluid comprising: an aqueous base; at least one chelant; hydrofluoric acid; and at least one corrosion inhibitor; and a boron-containing compound; and introducing the treatment fluid into a subterranean formation via a wellbore penetrating at least a portion of the subterranean formation.
    Type: Grant
    Filed: July 16, 2014
    Date of Patent: June 26, 2018
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Enrique Reyes, Natalie Pascarella, James Rosthorn
  • Patent number: 9868890
    Abstract: A method of increasing the density of a saturated or near saturated salt (initial) brine, such as a monovalent or divalent salt solution, consists of first lowering the true crystallization temperature (TCT) of the saturated or near saturated salt brine to the eutectic point using a glycol and then adding dry salt to the brine of lower TCT to provide a brine of increased density. The TCT may be lowered by the addition of glycol to the saturated or near saturated salt brine. The dry salt is the same salt as the salt of the saturated or near saturated salt brine. The amount of dry salt added to the brine of lower TCT is an amount sufficient to render a saturated or near saturated brine. The density of the resulting brine is higher than the density of the saturated or near saturated salt (initial) brine.
    Type: Grant
    Filed: March 14, 2016
    Date of Patent: January 16, 2018
    Assignee: ALLEMAN CONSULTING, LLC
    Inventor: David J. Alleman
  • Patent number: 9840669
    Abstract: A flocculant, according to embodiments of the present disclosure, includes a core nanoparticle and at least one positively charged functional group on a surface of the core nanoparticle. The nanoparticle may comprise a silica, alumina, titania, iron oxide, iron nitride, iron carbide, or a carbon-based nanoparticle. The flocculant may be used, in a method of bitumen recovery, to neutralize and agglomerate bitumen droplets and/or mineral particles derived from oil sands ore. The bitumen droplets agglomerate about the core nanoparticle of the flocculant to form bitumen flocs, while the mineral particles agglomerate about the core nanoparticle of the flocculant to form mineral flocs. The buoyant bitumen flocs may then separate from the dense mineral flocs to enable high-yield recovery of bitumen from oil sands.
    Type: Grant
    Filed: June 5, 2014
    Date of Patent: December 12, 2017
    Assignee: Baker Hughes Incorporated
    Inventors: Oleksandr V. Kuznetsov, Valery N. Khabashesku, Oleg A. Mazyar, Devesh Kumar Agrawal
  • Patent number: 9783726
    Abstract: The present invention relates to the well drilling field in petrochemical industry, and discloses an environment-friendly water-based drilling fluid applicable to horizontal shale gas wells comprising a nano-plugging agent, a bionic wall bracing agent, a bionic shale inhibitor, a filler, an emulsifier, and an amphiphobic wettability reversal agent, wherein, the nano-plugging agent is modified silicon dioxide nano-particle, and its modifying group includes an acrylic copolymer chain; the bionic wall bracing agent is carboxymethyl chitosan with a dopamine-derived group grafted on its main chain; the bionic shale inhibitor is composed of structural units of arginine and structural units of lysine; the filler consists of calcium carbonate of 1,600-2,500 mesh, calcium carbonate of 1,050-1,500 mesh, and calcium carbonate of 500-1,000 mesh at a weight ratio of 1:0.55-6:0.55-6; and the amphiphobic wettability reversal agent is a dual-cation fluorocarbon surfactant.
    Type: Grant
    Filed: April 17, 2017
    Date of Patent: October 10, 2017
    Assignee: China University of Petroleum (Beijing)
    Inventors: Guancheng Jiang, Yinbo He, Deli Gao, Xianmin Zhang, Xianzhu Wu, Lili Yang, Fan Liu, Guangchang Ma, Gang Qu, Li Zhao, Haifang Sun, Liexiang Han
  • Patent number: 9725642
    Abstract: Acidizing operations in subterranean formations that contain both a siliceous material and a source of calcium ions can often be problematic due to the generation of calcium-containing precipitates, particularly calcium fluoride. Methods for treating a subterranean formation can comprise: providing a treatment fluid having a pH ranging between about 1 and about 4.5 and comprising a chelating agent, hydrofluoric acid or a hydrofluoric acid-generating compound, and a compound having two or more quaternized amine groups; introducing the treatment fluid into a subterranean formation containing a siliceous material and a source of calcium ions; dissolving at least a portion of the siliceous material in the subterranean formation with the hydrofluoric acid or the hydrofluoric acid-generating compound; and complexing at least a portion of the calcium ions in the subterranean formation with the chelating agent.
    Type: Grant
    Filed: May 14, 2013
    Date of Patent: August 8, 2017
    Assignee: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Enrique Antonio Reyes, Alyssa Lynn Smith, Aaron M. Beuterbaugh
  • Patent number: 9719338
    Abstract: In one example of determining fracturing rheological behavior of fracturing fluids, a reference viscosity and fluid properties of a fracturing fluid are received. A fracturing rheological behavior of the fracturing fluid is modeled using a fluid model that models the fracturing rheological behavior of Newtonian and non-Newtonian fluids based, in part, on the received reference viscosity and the received fluid properties of the fracturing fluid. The fracturing rheological behavior of the fracturing fluid is provided. If a fracturing fluid is a mixture of two or more fracturing fluids, then a rheological behavior of the mixture is modeled based on a mixing rheological model. The fracturing rheological behavior of the mixture is then modeled based on the rheological behavior modeled by the mixing rheological model.
    Type: Grant
    Filed: September 5, 2013
    Date of Patent: August 1, 2017
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Pandurang Manohar Kulkarni, Andrey Filippov, Harold Grayson Walters
  • Patent number: 9693551
    Abstract: The present invention relates to non-aqueous pesticidal dispersible concentrate formulations comprising from about 2 to about 10% of at least one pesticidal agent, from about 15 to about 25% of hexylene glycol, from about 65 to about 75% of propylene glycol, a hydrophobic silica, and a surfactant, wherein the weight percentages are based on the total weight of the formulation. Formulations of the present invention have superior storage stability but are non-phytotoxic to seeds when used as a seed treatment. The present invention also relates to ready-to-use products made from the concentrated formulations of the present invention. Further, the present invention includes methods of using the pesticidal dispersible concentrate formulations and ready-to-use products to achieve superior plant protection and disease control.
    Type: Grant
    Filed: July 10, 2014
    Date of Patent: July 4, 2017
    Assignee: VALENT U.S.A. CORPORATION
    Inventors: Jane Liu, Toshiya Ogawa, Christopher B. Meador, Michael Seitz, Dair McDuffee, Karen S. Arthur
  • Patent number: 9699879
    Abstract: An apparatus and method sinters or partially sinters green pellets in a selected temperature range to make proppant particles as the green pellets pass between an electrical arc and a gas flowing in the vortex path and exit an underflow of a vessel. The vessel has an overflow disposed in a first end, an underflow disposed in a second end, a middle portion having a circular cross-section disposed between the first end and the second end, and a tangential inlet proximate to the first end such that a gas from the tangential inlet flows along a vortex path from the first end to the second end of the vessel. A first electrode extends through the overflow and a second electrode extends through the underflow. The electrodes are used to create the open electrical arc. One or more feed tubes extend through the overflow proximate to the first electrode.
    Type: Grant
    Filed: March 12, 2014
    Date of Patent: July 4, 2017
    Assignee: Foret Plasma Labs, LLC
    Inventor: Todd Foret
  • Patent number: 9315712
    Abstract: A method of servicing a wellbore comprising placing downhole a composition comprising a surfactant package comprising a cationic surfactant and anionic surfactant, wherein the surfactant package when contacted with an aqueous solution forms a viscosified composition in the presence of less than about 30 wt. % of a hydrotrope.
    Type: Grant
    Filed: April 7, 2009
    Date of Patent: April 19, 2016
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Ryan Van Zanten, Douglas J. Harrison
  • Patent number: 9157021
    Abstract: The invention relates to an improved enhanced recovery method using polymers, wherein these polymers are preserved from mechanical degradation by adding an additive comprising sacrificial compounds. The sacrificial compounds are preferentially degraded instead of the active polymers, thus allowing optimized recovery of the oil in the petroleum reservoir. The sacrificial compounds can be polymers of same nature as the active polymers, but of higher molecular weight, or polymers of different nature having more fragile bonds. The sacrificial compound(s) is/are selected according to a lesser resistance to mechanical degradation, in comparison with the active polymers of the solution allowing enhanced recovery.
    Type: Grant
    Filed: June 19, 2012
    Date of Patent: October 13, 2015
    Assignee: IFP ENERGIES NOUVELLES
    Inventors: Isabelle Henaut, Khalil Hamdi, Jean-Francois Argillier
  • Patent number: 9018142
    Abstract: Aqueous well treatment fluid compositions with biocidal activity are disclosed comprising a polymer for modifying fluid viscosity in the aqueous fluid, an organic monocarboxylic peracid being present in an anti-microbial amount of about 1 ppm to about 1000 ppm, and a controlled amount of hydrogen peroxide also being present. Peracetic acid is the preferred peracid. The viscosity-modifying polymer in the aqueous well treatment fluid composition may serve to reduce friction in the fluid or increase fluid viscosity. A method of using such compositions is also disclosed.
    Type: Grant
    Filed: December 7, 2009
    Date of Patent: April 28, 2015
    Assignee: PeroxyChem LLC
    Inventors: John M. Rovison, Jr., Shurong Huang, Henry A. Pfeffer
  • Publication number: 20150107835
    Abstract: Well treatment with shapeshifting particles. Methods, treatment fluids and systems utilizing shapeshifting particles are disclosed. One method relates to the injection of the shapeshifting particles into a fracture, and changing a conformation of the shapeshifting particles to improve conductivity. A treatment fluid comprises the shapeshifting particles dispersed in a carrier fluid, and a system comprises a unit to supply the treatment fluid, a pump system to inject the treatment fluid into the fracture and a triggering system to change the conformation of the shapeshifting particles.
    Type: Application
    Filed: October 17, 2013
    Publication date: April 23, 2015
    Applicant: Schlumberger Technology Corporation
    Inventors: Mohan Panga, Dan Fu
  • Publication number: 20150065401
    Abstract: A composite downhole article is disclosed. The article is selectively corrodible in a wellbore fluid. The article includes at least one corrodible core member comprising a metallic first material that is corrodible in a wellbore fluid at a first corrosion rate. The article also includes at least one outer member disposed on the core member and comprising a second material that is corrodible in the wellbore fluid at a second corrosion rate, wherein the corrodible core member has a composition gradient or a density gradient, or a combination thereof, and wherein the first corrosion rate is substantially greater than the second corrosion rate.
    Type: Application
    Filed: November 11, 2014
    Publication date: March 5, 2015
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Zhiyue Xu, Michael Johnson
  • Publication number: 20150027699
    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: Application
    Filed: July 25, 2013
    Publication date: January 29, 2015
    Applicant: Schlumberger Technology Corporation
    Inventors: Anthony Loiseau, Yiyan Chen
  • Publication number: 20150024976
    Abstract: Methods and systems for predicting properties of well bore treatment fluids are disclosed. An embodiment includes a method of predicting fluid properties comprising: determining an operational window for a well bore fluid system; collecting data at vertices of the operational window; and developing a model comprising predicted properties for a plurality of data points within the operational window, wherein developing the model uses Barycentric interpolation.
    Type: Application
    Filed: July 18, 2013
    Publication date: January 22, 2015
    Inventors: Lucas D. Albrighton, Herron J. Kennedy
  • Publication number: 20150007990
    Abstract: An improvement over known hydraulic fracturing fluids. Boundary layer kinetic mixing material is added to components of fracturing fluid wherein kinetic mixing material is a plurality of particles wherein at least 25% of particles are several types, i.e., having surface characteristics of thin walls, three dimensional wedge-like sharp blades, points, jagged bladelike surfaces, thin blade surfaces, three-dimensional blade shapes that may have shapes similar to a “Y”, “V” or “X” shape or other geometric shape, slightly curved thin walls having a shape similar to an egg shell shape, crushed hollow spheres, sharp bladelike features, 90° corners that are well defined, conglomerated protruding arms in various shapes, such as cylinders, rectangles, Y-shaped particles, X-shaped particles, octagons, pentagon, triangles, and diamonds.
    Type: Application
    Filed: July 22, 2014
    Publication date: January 8, 2015
    Inventor: WILLIAM L. JOHNSON, SR.
  • Patent number: 8916506
    Abstract: High solids content slurry, systems and methods. The slurry comprises a carrier fluid and a solids mixture of first, second, third and fourth particle size distribution (PSD) modes wherein the first PSD mode is at least three times larger than the second PSD mode, which is larger than the third PSD mode, which is larger than the fourth PSD mode, and wherein at least one of the second and third PSD modes is less than 3 times larger than the respective third or fourth PSD mode. The method comprises forming the slurry, positioning a screen in a wellbore and circulating the slurry through the wellbore such that the solids mixture is deposited between the screen and the wellbore. The system comprises a pump to circulate the slurry, a workstring to position the screen and means for converting the slurry to a gravel pack.
    Type: Grant
    Filed: July 11, 2013
    Date of Patent: December 23, 2014
    Assignee: Schlumberger Technology Corporation
    Inventors: Mohan K. R. Panga, Jean-Phi Bedel, Yiyan Chen
  • Patent number: 8895483
    Abstract: The invention discloses a method of for changing the water permeability of a subterranean formation of a well, the method comprising: providing a fluid comprising a liquid carrier and a viscoelastic surfactant; introducing the fluid into the well; and contacting the fluid and the subterranean formation wherein the action of the liquid carrier and the viscoelastic surfactant is able to change the water permeability of the subterranean formation. The fluid may further comprise methanol, or a salt which can be embodied within the carrier fluid. Advantageously, no further RPM polymer is used. In a first aspect the method is used for reducing the amount of water produced, in as second aspect for improving the oil recovery.
    Type: Grant
    Filed: May 1, 2009
    Date of Patent: November 25, 2014
    Assignee: Schlumberger Technology Corporation
    Inventors: Arthur Milne, Manuel Jose Lastre Buelvas
  • Publication number: 20140332207
    Abstract: A method for determining a characteristic of an underground formation with a fluid is described. The method includes providing a sample material of the underground formation; measuring the permeability and the porosity of the sample material; performing a drainage test on the sample material using the fluid; estimating the threshold pressure of the sample material from the drainage test, the permeability and the porosity measurements; and determining the receding contact angle of the fluid on the sample material from the threshold pressure. The sample material can be disaggregated material.
    Type: Application
    Filed: July 23, 2014
    Publication date: November 13, 2014
    Inventors: Jerald J. Hinkel, Dean Willberg, Markus Pagels
  • Patent number: 8877690
    Abstract: A method of treating a wastewater is provided and can be used, for example, to treat a gas well production wastewater to form a wastewater brine. The method can involve crystallizing sodium chloride by evaporation of the wastewater brine with concurrent production of a liquor comprising calcium chloride solution. Bromine and lithium can also be recovered from the liquor in accordance with the teachings of the present invention. Various metal sulfates, such as barium sulfate, can be removed from the wastewater in the production of the wastewater brine. Sources of wastewater can include gas well production wastewater and hydrofracture flowback wastewater.
    Type: Grant
    Filed: August 31, 2011
    Date of Patent: November 4, 2014
    Assignee: ProChemTech International, Inc.
    Inventor: Timothy Edward Keister
  • Publication number: 20140318788
    Abstract: The present invention relates to a method of treating a subterranean formation. The present invention also relates to a method of delivering an acid to a subterranean formation. The methods include obtaining or providing a composition that includes filter cake breaker, viscosifier, corrosion inhibitor, and pH buffering agent. The methods also include contacting the composition with a subterranean material downhole. The present invention also relates to a composition for the treatment of a subterranean formation. The composition includes: filter cake breaker, viscosifier, corrosion inhibitor, pH buffering agent, and at least one of drilling fluid, stimulation fluid, fracturing fluid, spotting fluid, clean-up fluid, production fluid, completion fluid, remedial treatment fluid, abandonment fluid, pill, acidizing fluid, cementing fluid, and packer fluid.
    Type: Application
    Filed: April 26, 2013
    Publication date: October 30, 2014
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Amit Chandrakant Agrawal, Amar Deep Pathak, Achala Vasudev Danait
  • Publication number: 20140318774
    Abstract: Fluids with high carrying capacity for particulates in high pressure environments that may also be high temperature environments may include a viscosified base fluid having a density of about 14 ppg to about 20 ppg and comprises an aqueous fluid, a salt, a gelling agent, and an oxygen scavenger. Such fluids may be utilized in methods that involve providing a sand control screen assembly disposed within a wellbore penetrating a subterranean formation; and forming a gravel pack proximal to the sand control screen assembly with a treatment fluid, wherein the treatment fluid comprises the viscosified base fluid and a plurality of particulates.
    Type: Application
    Filed: April 24, 2013
    Publication date: October 30, 2014
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Prerana Umesh Suryawanshi, Achala Vasudev Danait, Maxime Philippe Coffin