Patents Examined by Aiqun Li
  • Patent number: 11028314
    Abstract: Interactions between aqueous fluids and clay-containing subterranean formations may be problematic due to issues associated with clay destabilization and migration. Subterranean treatment methods may comprise: providing a clay stabilizing composition comprising an amine-functionalized dextrin compound having 2 to about 20 glucose units linked together with ?(1,4) glycosidic bonds, and an amine-functionalized dextran polymer having a plurality of glucose units linked together with ?(1,6) glycosidic bonds; introducing the clay stabilizing composition into a subterranean formation bearing a clay-containing mineral; and interacting the amine-functionalized dextrin compound and the amine-functionalized dextran polymer with the clay-containing mineral to affect stabilization thereof. A portion of the glucose units are oxidatively opened and functionalized with at least one amine group at a site of oxidative opening in both the amine-functionalized dextrin compound and the amine-functionalized dextran polymer.
    Type: Grant
    Filed: July 11, 2019
    Date of Patent: June 8, 2021
    Assignee: Integrity Bio-Chemicals, LLC
    Inventors: Christopher P. Gardner, Kristopher Megahan, Curtis J. Rodencal, Charles R. Landis, Ashoka V. R. Madduri
  • Patent number: 10988672
    Abstract: The present disclosure may be directed to defoaming methods and compositions. A method of treating a subterranean formation may comprise providing a defoaming composition, wherein the defoaming composition comprises a tall-oil-derived surfactant. The method may further comprise mixing the defoaming composition with an aqueous fluid to form a treatment fluid such that foaming in the treatment fluid is reduced, wherein the treatment fluid is a water-based fluid. The method may further comprise placing the treatment fluid into the subterranean formation.
    Type: Grant
    Filed: November 15, 2018
    Date of Patent: April 27, 2021
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Sandeep Vasant Chavan, Alan William Marr, Mahesh Vijaykumar Biyani
  • Patent number: 10941332
    Abstract: The present invention concerns the use of at least one compound A comprising at least one —SH or —S?, M+ group, at least one —C-G-C— chain, in which G represents an atom from column 16 of the periodic table, not comprising a carboxy group —C(?O)—OH or —C(?O)—O?, and of a molar mass of between 90 g·mol?1 and 1000 g·mol?1, as an additive in a formulation inhibiting corrosion in metals used in the oil industry, and more generally in any kind of industry involving the drilling of ores or fossil compounds, such as gas or oil, in order to improve both the anti-corrosion performance and the storage stability of same. The invention also concerns said corrosion-inhibiting formulations comprising at least one compound A.
    Type: Grant
    Filed: September 23, 2014
    Date of Patent: March 9, 2021
    Assignee: Arkema France
    Inventors: Tong Eak Pou, Denis Alonzo, Gilles Barreto, Kevin Hisler
  • Patent number: 10934475
    Abstract: A Janus graphene nanosheet (JGN) surfactant formed from a two-dimensional graphene oxide sheet and functionalized to produce an amphiphilic graphene nanosheet. The JGN may be a component of a nanofluid utilized in nanofluid flooding for oil recovery. The JGN may also be used as solid surfactants to form emulsions for oil recovery.
    Type: Grant
    Filed: July 15, 2016
    Date of Patent: March 2, 2021
    Assignee: UNIVERSITY OF HOUSTON SYSTEM
    Inventors: Zhifeng Ren, Feng Wang, Dan Luo
  • Patent number: 10927288
    Abstract: Various embodiments disclosed relate to cement activator compositions for treatment of subterranean formations. In various embodiments, the present invention provides a method of treating a subterranean formation including placing in the subterranean formation a liquid cement activator composition including water, an alkali sulfate salt, a polyphosphate salt, and a stabilizer polymer.
    Type: Grant
    Filed: August 25, 2015
    Date of Patent: February 23, 2021
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Janelle Haydon, Sean William Riggio, Kyriacos Agapiou, Thomas Jason Pisklak, Samuel Lewis
  • Patent number: 10907084
    Abstract: A variety of systems, methods and compositions are disclosed, including, in one method, a method for well treatment may comprise providing a treatment fluid comprising an aqueous base fluid; and a nanofribril cellulose additive, wherein the nanofribril cellulose additive comprises nanofribril cellulose and a surfactant adsorbed onto a surface of the nanofribril cellulose; and introducing the treatment fluid into a well bore penetrating a subterranean formation. Additional systems, methods and compositions are also disclosed.
    Type: Grant
    Filed: February 23, 2016
    Date of Patent: February 2, 2021
    Assignee: Halliburton Energy Services, Inc.
    Inventors: William Cecil Pearl, Jr., Samuel J. Lewis, Thomas Singh Sodhi
  • Patent number: 10907089
    Abstract: A method of stabilizing one or more clays within a subterranean formation comprises forming at least one treatment fluid comprising anionic silica particles, cationic silica particles, and at least one base material. The at least one treatment fluid is provided into a subterranean formation containing clay particles to attach at least a portion of the anionic silica particles and the cationic silica particles to surfaces of the clay particles and form stabilized clay particles. A method of treating one or more clays contained within a subterranean formation, and a treatment fluid for a subterranean formation.
    Type: Grant
    Filed: February 26, 2018
    Date of Patent: February 2, 2021
    Assignee: Baker Hughes Holdings LLC
    Inventors: Devesh Kumar Agrawal, Radhika Suresh, Oleksandr V. Kuznetsov, Valery N. Khabashesku, John C. Welch
  • Patent number: 10899955
    Abstract: Emulsions, treatment fluids and methods for treating subterranean formations are provided, wherein the emulsions comprise water, a water-immiscible liquid, one or more polymers, one or more ethoxylated amine compounds and optionally, one or more organic or inorganic salts. The emulsions are particularly suitable for use in harsh brine conditions.
    Type: Grant
    Filed: December 22, 2015
    Date of Patent: January 26, 2021
    Assignee: Kemira OYJ
    Inventors: Paul Waterman, Logan Jackson, Danny Nguyen, Ronald Robinson
  • 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: 10894912
    Abstract: Provided is a method of treating a subterranean formation comprising: preparing a well servicing fluid comprised of a base fluid, a temporary compacted material wherein the temporary compacted material is a compacted organic acid; placing the well servicing fluid into a subterranean formation; and allowing the temporary compacted material to gradually dissolve.
    Type: Grant
    Filed: January 31, 2018
    Date of Patent: January 19, 2021
    Assignee: LyondellBasell Advanced Polymers Inc.
    Inventors: Charles J. Busceme, Bradley L. Todd, Stanley J. Heath
  • Patent number: 10883041
    Abstract: A method of making a proppant-gel matrix comprising: a) hydrating a gelling agent to form a hydrated gelling agent; b) adding a basic compound to the hydrated gelling agent to form a basic hydrated gelling agent having a pH in the range of 11.5 to 14.0; c) mixing the basic hydrated gelling agent and a proppant to form a basic hydrated gelling system; and d) adding a crosslinking agent to the basic hydrated gelling system to form the proppant-gel matrix, is disclosed. The proppant-gel matrix can then be used as a fracturing fluid in a hydraulic fracturing process.
    Type: Grant
    Filed: June 2, 2017
    Date of Patent: January 5, 2021
    Assignee: HEXION INC.
    Inventors: Charles Zha, Jan Beetge
  • Patent number: 10858571
    Abstract: The present disclosure relates to a high-temperature retarder suitable for oil and gas well cementation, a preparation method thereof and a cementing slurry.
    Type: Grant
    Filed: January 27, 2020
    Date of Patent: December 8, 2020
    Assignees: CHINA UNIVERSITY OF PETROLEUM (EAST CHINA), CHENGDU OMAX PETROLEUM TECHNOLOGY CO., LTD
    Inventors: Chengwen Wang, Yucheng Xue, Wei Zhou, Ruihe Wang, Jinsheng Sun, Yong Li, Changqiang Tang
  • Patent number: 10858565
    Abstract: The present application provides a gas-generating aqueous fluid containing a gas-generating compound like an azo compound, and an organic amine like a primary, secondary or tertiary amine, a hydrazine, a hydrazide, or a semicarbazide. The aqueous fluid may also a viscosifier, and a foaming surfactant. The present application also provides a method of using the gas-generating composition to modulate density of a wellbore fluid for use in downhole applications. The method optionally includes adding an oxidizer to the wellbore fluid.
    Type: Grant
    Filed: February 21, 2019
    Date of Patent: December 8, 2020
    Assignee: Saudi Arabian Oil Company
    Inventor: B. Raghava Reddy
  • Patent number: 10851280
    Abstract: Modified asphalt particles contain asphalt and a modifier. The modifier comprises poly-sulfur and free sulfur. The sulfur element accounts for 10-40 weight percent of the total amount of the modified asphalt particles, and the poly-sulfur accounts for 30-70 weight percent of the total amount of the sulfur element. The total particle size of the modified asphalt particle is smaller than or equal to 150 ?m. The modified asphalt particles have an excellent high temperature performance, and can be used for preparing drilling fluids. Water-in-oil based drilling fluid obtained from the modified asphalt particles has low plastic viscosity, high dynamic shear force, high dynamic plastic ratio, and high emulsion-breaking voltage, and improves the high temperature resistance and cutting carrying capability of a system.
    Type: Grant
    Filed: November 1, 2016
    Date of Patent: December 1, 2020
    Assignees: CHINA PETROLEUM & CHEMICAL CORPORATION, DALIAN RESEARCH INSTITUTE OF PETROLEUM AND PETROCHEMICALS, SINOPEC CORP.
    Inventors: Li Fu, Jiaohe Guo, Hanrong Yao, Shuhua Liu, Jianfeng Zhang
  • Patent number: 10844278
    Abstract: The present invention relates to a composition for dissolving an oil-based filter cake in a wellbore, and a single-step method of use. The composition comprises a chelating agent, a converting agent, a polymer removal agent, a mutual solvent, and a surfactant. The present invention also relates to a multi-step method of dissolving an oil-based filter cake using similar components. Both single-step and multistep methods may be used to dissolve oil-based filter cakes comprising barite as a weighting material.
    Type: Grant
    Filed: July 14, 2017
    Date of Patent: November 24, 2020
    Assignee: King Fahd University of Petroleum and Minerals
    Inventors: Mohamed Mahmoud, Salah El-Din Elkatatny
  • Patent number: 10844263
    Abstract: The invention provides a wellbore fluid which comprises an aqueous continuous phase and, dissolved in said aqueous continuous phase, at least one salt which exists in a liquid state at a temperature below 150° C. and which has an ammonium, phosphonium or sulfonium cation containing at least 5 carbon atoms, or a quaternised nitrogen-containing heterocyclic cation containing at least 6 carbon atoms; provided that said salt is not 2-hydroxy-N,N,N-trimethyl ethanaminium acetate; and a method of carrying out a wellbore operation, which comprises introducing into a wellbore in a clay-containing formation, a wellbore fluid according to the invention. The described salts are effective shale inhibitors.
    Type: Grant
    Filed: November 27, 2008
    Date of Patent: November 24, 2020
    Assignee: THE QUEEN'S UNIVERSITY BELFAST
    Inventors: Mark Aston, Kenneth Richard Seddon, David Francis Wassell
  • Patent number: 10829681
    Abstract: The present disclosure discloses a modified nano-silica plugging agent, a water-based drilling fluid, and a preparation method and use thereof.
    Type: Grant
    Filed: January 14, 2020
    Date of Patent: November 10, 2020
    Assignee: SOUTHWEST PETROLEUM UNIVERSITY
    Inventors: Yang Bai, Pingya Luo, Yan Cheng, Cheng Li, Hao Zhang, Guojun Li
  • Patent number: 10815413
    Abstract: The present invention relates to the formation of a gel within a medium M, in particular within an underground formation, which comprises the following steps: (EI) a basic compound C is added to a fluid latex L comprising dispersed particles of a polymer P, bearing ester side functions, said basic compound C being added in an amount suitable for hydrolysing at least one part of said ester side functions into carboxylic acid and/or alcohol functions, as a result of which a modified latex L? is obtained, the viscosity of which gradually increases with time from the addition of the compound C up to the formation of a gel; then (E2) the resulting modified latex is introduced into the medium M before the formation of the gel and the gel is left to form within the medium M.
    Type: Grant
    Filed: April 18, 2013
    Date of Patent: October 27, 2020
    Assignee: RHODIA OPERATIONS
    Inventors: Arnaud Cadix, Chi-Thanh Vuong
  • Patent number: 10759984
    Abstract: A rapidly dehydrating lost circulation material (LCM) composition is provided. The LCM composition may include a carrier fluid, volcanic ash, a viscosifier, and date tree rachis fibers. The carrier fluid may be water and the viscosifier may be a cellulosic microfiber. The LCM composition may form a rapidly dehydrating loss control slurry (RDLCS). The LCM composition may be formed by mixing the carrier fluid, the volcanic ash, the viscosifier, and the date tree rachis fibers in a mixer to form a homogenous mixture. Methods of lost circulation control and manufacture of a rapidly dehydrating LCM are also provided.
    Type: Grant
    Filed: August 7, 2018
    Date of Patent: September 1, 2020
    Assignee: Saudi Arabian Oil Company
    Inventor: Md Amanullah
  • Patent number: 10759990
    Abstract: Compositions for stimulating hydrocarbon production from a subterranean formation are generally disclosed. In some embodiments, such compositions include olefinic ester compounds, such as alkyl esters of C10-18 unsaturated fatty acids. In some embodiments, the olefinic ester compounds are derived from a natural oil or a natural oil derivative, for example, by catalytic olefin metathesis. Uses of such compounds, such as in oil- and gas-production methods are also generally disclosed.
    Type: Grant
    Filed: April 4, 2017
    Date of Patent: September 1, 2020
    Assignee: Wilmar Trading Pte Ltd.
    Inventors: Frederyk Ngantung, Robin Weitkamp, Phillip Kaufman