Patents Examined by Kumar R Bhushan
  • Patent number: 11326439
    Abstract: Compositions and methods for prevention and reduction of iron sulfide scale formation, one method including detecting at least one component indicative of an iron sulfide scale precursor, the at least one component selected from the group consisting of: H2S; HS?; S2?; Sn2?; FeS(aq); Fe2+; Fe3+, and combinations of the same; preparing a composition to react with the iron sulfide scale precursor, the composition comprising at least one compound selected from the group consisting of: a methylating agent; a metal operable to react with sulfide species; a compound to increase the oxidation state of Fe2+; and combinations of the same; and applying the composition to the iron sulfide scale precursor to consume the iron sulfide scale precursor.
    Type: Grant
    Filed: May 15, 2020
    Date of Patent: May 10, 2022
    Inventor: Harry Daniel Oduro
  • Patent number: 11319474
    Abstract: Disclosed here are drilling fluid compositions containing linear alpha olefins, an invert emulsifier, a filtration control agent; and an inorganic mineral component including one or more of lime, calcium chloride, and barite. Also disclosed here are methods of using such compositions during drilling operations for recovery of hydrocarbons. Various other embodiments may be disclosed and claimed.
    Type: Grant
    Filed: August 4, 2017
    Date of Patent: May 3, 2022
    Assignee: Saudi Arabian Oil Company
    Inventors: Abdullah Al-Yami, Vikrant Wagle, Hussain Al-Bahrani, Ali Al-Safran, Nassar Al-Alhareth
  • Patent number: 11319480
    Abstract: The invention provides a method for employing the total product stream from hydrolysis of triglycerides comprising fatty acids, glycerin and water to address at the environmental issues associated with drilling, completion and hydrofracturing wells employed for recovery of subterranean hydrocarbon deposits in an area of shale formation.
    Type: Grant
    Filed: June 5, 2020
    Date of Patent: May 3, 2022
    Inventor: Axel R. Johnson
  • Patent number: 11312892
    Abstract: The present disclosure relates to subterranean formation operations and, more particularly, to embedded treatment fluid additives for use in subterranean formation operations. The embedded treatment additives may comprise an aqueous-soluble downhole reactive material embedded in a crosslinked polymeric solution to delay the reactivity of the aqueous-soluble downhole reactive material, thereby forming the embedded treatment additive, wherein the aqueous-soluble downhole reactive material is a solid.
    Type: Grant
    Filed: December 7, 2016
    Date of Patent: April 26, 2022
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Dipti Singh, Aaron Michael Beuterbaugh, Enrique Antonio Reyes
  • Patent number: 11286416
    Abstract: This invention relates to a surfactant composition, production and use thereof in tertiary oil recovery. The present surfactant composition comprises a cationic-nonionic surfactant and an anionic surfactant, and exhibits significantly improved interfacial activity and stability as compared with the prior art. With the present surfactant composition, a flooding fluid composition for tertiary oil recovery with improved oil displacement efficiency and oil washing capability as compared with the prior art could be produced.
    Type: Grant
    Filed: November 21, 2019
    Date of Patent: March 29, 2022
    Inventors: Yingcheng Li, Songyuan Gu, Weidong Zhang, Xinning Bao, Ou Sha, Zhiqin Shen, Yiqing Yang, Xiaodong Zhai
  • Patent number: 11286411
    Abstract: A synergist for a water-base drilling fluid and a preparation method therefor, a water-base drilling fluid and an application thereof, and belongs to the field of drilling fluid technologies. The synergist is prepared from raw materials comprising the following parts by weight: 15˜25 parts of sodium styrene sulfonate, 8˜15 parts of allyl trimethyl ammonium chloride, 2˜8 parts of didodecyldimethylammonium bromide, 1˜5 parts of n-octyl triethoxysilane, 1˜5 parts of propyltriethoxysilane, 1˜5 parts of disodium lauryl sulfosuccinate, 10˜20 parts of nano silica, 8˜15 parts of paraffin, and the like.
    Type: Grant
    Filed: September 29, 2020
    Date of Patent: March 29, 2022
    Assignee: Beijing Shida Bocheng Technology Co., Ltd
    Inventors: Xiaohu Quan, Haiping Feng, Yihu Wang, Jianmin Chen, Yu Cao, Weizhi You, Junling Zhao, Jing Yang, Ang Li, Wei Quan
  • Patent number: 11279870
    Abstract: Methods for breaking polymer-containing treatment fluids for use in subterranean formations are provided. In one or more embodiments, the methods include providing a treatment fluid comprising a base fluid and a polymer, wherein the treatment fluid was recovered from at least a portion of a subterranean formation located at a wellsite; transporting the treatment fluid from the wellsite to an off-site location; and applying a cavitation technique to at least a portion of the treatment fluid at the off-site location.
    Type: Grant
    Filed: December 4, 2019
    Date of Patent: March 22, 2022
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Preston Andrew May, William Walter Shumway, Dale E. Jamison
  • Patent number: 11274239
    Abstract: A fluid may include an aqueous based continuous phase, a pH adjusting additive, wherein the pH adjusting additive is formic acid, and a clay hydration suppressant agent having the formula H2NCH(CH3)CH2(OCH(CH3)CH2)xNH2, wherein x is a value less than 15.
    Type: Grant
    Filed: July 31, 2015
    Date of Patent: March 15, 2022
    Inventors: Steven Philip Young, Emanuel Stamatakis, Meghan Ruth Riley, Yiyan Chen
  • Patent number: 11268005
    Abstract: This invention provides zinc-free aqueous brine compositions. These zinc-free aqueous brine compositions have a density of about 14.3 pounds per gallon or more, and a true crystallization temperature of about 20° F. or less, and comprise water and one or more inorganic bromide salts, with the provisos that when calcium bromide is present, one or more other water-soluble inorganic salts are also present, when lithium bromide is present, calcium bromide is absent, when bismuth(III) bromide is present, one or more other water-soluble inorganic salts are also present, and for a true crystallization temperature of about 10° F. or less, when manganese(II) bromide is present, one or more other water-soluble inorganic salts are also present. Processes for forming these zinc-free aqueous brine compositions are also provided.
    Type: Grant
    Filed: February 13, 2020
    Date of Patent: March 8, 2022
    Assignee: Albemarle Corporation
    Inventors: Christopher J. Nalepa, Jacobus N. Louwen, Yunqi Liu, Gregory H. Lambeth, Srinivasa S. Godavarthy, Kevin Coppola
  • Patent number: 11261373
    Abstract: The present invention disclosed a method for preparing a thickener for tight oil and gas reservoir, which relieves damages. The technical solution includes the following steps: putting a three-flask in ice; adding perfluoroalkyl alcohol, P-toluenesulfonyl chloride and pyridine; reacting for 3 h at 0-20° C.; adding filter paper; ultrasonic dispersing for 1 h; removing the filter paper; washing the solution for 3-5 times by adding dilute hydrochloric acid to collect the intermediate product (I); adding 1,3-dihydroxy-propane-2-tert-butyl carbamate and the intermediate product (I) in another three-flask; adding potassium carbonate and N,N-dimethylformamide; reacting for 4 h at 40° C. to collect the intermediate product (II); adding trifluoroacetic acid and methylene chloride into the intermediate product (II); reacting at 45° C. for 2 h; extracting and vacuum drying; and adding 1,6-hexamethylene diisocyanate; reacting for 2 h to collect the final product (III).
    Type: Grant
    Filed: July 14, 2020
    Date of Patent: March 1, 2022
    Assignee: Southwest Petroleum University
    Inventors: Ming Zhou, Hongjun Tu, Xiao Guo, Jinfeng Zhang, Juncheng Bu, Peng'ao Peng, Hongchang Han, Linkai Li, Mao Liao, Yinhua Gu, Rongjun Yi, Yongqiang Shi, Liangliang Xia
  • Patent number: 11261363
    Abstract: The methods of suspending at least one weighting agent in a drilling fluid include synthesizing carbon nanotubes via chemical vapor deposition on iron oxide catalyst nanoparticles to form a quantity of nanoparticles. Individual nanoparticles of the iron oxide catalyst nanoparticles include a transition metal disposed on iron oxide. The embodiments further include adding a quantity of nanoparticles to the drilling fluid which results in an amount of carbon nanotubes dispersed within the drilling fluid. The dispersion of the quantity of nanoparticles increases the value of at least one of a Newtonian viscosity, a yield point, a plastic viscosity, and a density of the drilling fluid with the dispersed nanoparticles versus a similar or equivalent drilling fluid without the nanoparticle dispersion. The method may further include adding at least one weighting agent which will become suspended in the drilling fluid.
    Type: Grant
    Filed: March 27, 2020
    Date of Patent: March 1, 2022
    Assignee: Saudi Arabian Oil Company
    Inventors: Ashok Santra, Peter J. Boul, Carl Thaemlitz
  • Patent number: 11261371
    Abstract: The present disclosure provides a surfactant formulation for use in treating and recovering fossil fluid from a subterranean formation. The surfactant formulation includes a nonionic surfactant, organic acid selected from citric acid, diglycolic acid, glycolic acid and a salt thereof and injection water. The surfactant formulation may be injected into one or more injection wells located within the subterranean formation and fossil fluids can then be subsequently recovered from one or more producing wells.
    Type: Grant
    Filed: February 6, 2020
    Date of Patent: March 1, 2022
    Assignee: Indorama Ventures Oxides LLC
    Inventors: Pierre Solastiouk, Luis C. Salazar, David C. Lewis
  • Patent number: 11248160
    Abstract: Disclosed are compositions and methods for use in oil and gas operations.
    Type: Grant
    Filed: January 30, 2019
    Date of Patent: February 15, 2022
    Assignees: Chevron U.S.A. Inc., Chevron Oronite Company LLC
    Inventors: Dennis A. Alexis, Gayani Pinnawala Arachchilage, Varadarajan Dwarakanath, Do Hoon Kim, Taimur Malik, Gregory A. Winslow, Aaron Wilhelm
  • Patent number: 11230657
    Abstract: A water-based wellbore fluid may include an aqueous base fluid and a modified graphene shale inhibitor that comprises one or more substituents that are covalently bonded to graphene via a linking group. One of the one or more substituents may be a hydrocarbon group that has a number of carbon atoms in the range from 8 to 14.
    Type: Grant
    Filed: March 2, 2020
    Date of Patent: January 25, 2022
    Inventors: Tawfik Abdo Saleh, Mohammed Khalid Al-Arfaj, Azeem A. Rana
  • Patent number: 11225597
    Abstract: Polymer-monodispersed nano-microspheres for deep profile control and flooding. The polymer-monodispersed nano-microspheres comprise (% wt.): 0.05 to 2.5% of macromolecules A, 0.05 to 2.5% of macromolecules B, 0.002 to 0.05% of an oxygen scavenger, and mineralized water. Macromolecules A comprise a straight-chain water-soluble polymer with an ethyl ether or propyl ether structure. Macromolecules B comprise a water-soluble polymer with a hydroxyl or polyphenolic structure. Macromolecules A and macromolecules B are intermolecularly assembled under the drive of extremely strong hydrogen bonds in aqueous solutions to rapidly construct monodispersed nano-microsphere dispersion glue with a controllable size. The monodispersed nano-microspheres have a good seepage in a porous medium and excellent deep profile control and flooding capabilities.
    Type: Grant
    Filed: July 3, 2019
    Date of Patent: January 18, 2022
    Inventors: Rui Liu, Wanfen Pu
  • Patent number: 11225594
    Abstract: The present invention relates to a drilling fluid for enhancing stratum pressure bearing capacity, and a method of preparing and using the drilling fluid. The drilling fluid comprises water, bentonite, low adhesive aggregation anionic cellulose, lignite resin, high temperature resistant and salt resistant filtrate reducer, silanol inhibitor, inorganic micrometer-nanometer rigid particles and emulsified asphalt. The bentonite is 2-9 parts by weight, the low adhesive aggregation anionic cellulose is 0.1-1 parts by weight, the lignite resin is 1-5 parts by weight, the high temperature resistant and salt resistant filtrate reducer is 0.1-2 parts by weight, the silanol inhibitor is 0.1-2 parts by weight, the inorganic micrometer-nanometer rigid particles are 0.5-5 parts by weight, and the emulsified asphalt is 1-10 parts by weight, based on 100 parts by weight of water.
    Type: Grant
    Filed: March 15, 2021
    Date of Patent: January 18, 2022
    Assignee: Southwest Petroleum University
    Inventors: Yang Bai, Pingya Luo, Hao Zhang, Cheng Li, Yan Cheng, Guojun Li, Chunyan Liu, Hongbo Li
  • Patent number: 11220622
    Abstract: Disclosed are methods of using liquid polymer and inverse emulsion compositions comprising one or more hydrophobic liquids having a boiling point at least about 100° C.; one or more acrylamide-(co)polymers; one or more emulsifier surfactants; one or more inverting surfactants; and one or more stabilizing agents (e.g., one or more siloxane polyether compounds, one or more poly(alkyl)acrylate compounds, or any combination thereof). When the composition is inverted in an aqueous solution, it provides an inverted solution having a filter ratio using a 1.2 micron filter (FR1.2) of about 1.5 or less. The inverted solutions can be used in oil and gas operations.
    Type: Grant
    Filed: June 29, 2018
    Date of Patent: January 11, 2022
    Assignee: Chevron U.S.A. Inc.
    Inventors: Hong Yang, Frances Fournier
  • Patent number: 11208587
    Abstract: A stabilized composition for use as a well fluid is provided. The stabilized composition includes a brine, a polyol, the polyol in an amount operable to inhibit solid formation, the polyol further operable to dissolve within the brine; and a stabilization compound, the stabilization compound operable to stabilize the polyol, such that the polyol does not degrade at a bottom hole temperature.
    Type: Grant
    Filed: December 30, 2020
    Date of Patent: December 28, 2021
    Inventors: Arthur G. Mack, Stanley Gunawan, Katrina Schultz
  • Patent number: 11208590
    Abstract: Clay stabilization compositions include one or a plurality of triamino compounds and/or derivatives thereof, fluids containing an effective amount of the clay stabilization compositions and methods for making and using same.
    Type: Grant
    Filed: November 1, 2017
    Date of Patent: December 28, 2021
    Inventors: Aziz Hikem, Madhukar Chetty, Derek Vaughn, Prasad Taranekar, Jeffery W. Balko
  • Patent number: 11198809
    Abstract: The present invention relates to the use of amphiphilic sequenced copolymers as an agent for controlling the filtrate in a fluid (F) injected under pressure into an underground formation, comprising—at least one chain (C) soluble in the fluid (F); and—at least one block (B) that is insoluble in the fluid (F).
    Type: Grant
    Filed: June 2, 2016
    Date of Patent: December 14, 2021
    Inventors: Arnaud Cadix, David James Wilson