Patents by Inventor Aaron WILHELM

Aaron WILHELM has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Compositions for use in oil and gas operations
    Patent number: 11884879
    Abstract: Disclosed are compositions and methods for use in oil and gas operations.
    Type: Grant
    Filed: February 14, 2022
    Date of Patent: January 30, 2024
    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
  • Methods for use in oil and gas operations
    Patent number: 11739254
    Abstract: Disclosed are compositions and methods for use in oil and gas operations.
    Type: Grant
    Filed: May 17, 2021
    Date of Patent: August 29, 2023
    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
  • COMPOSITIONS AND METHODS FOR THE RECOVERY OF OIL UNDER HARSH CONDITIONS
    Publication number: 20230097814
    Abstract: Described herein are surfactant compositions for use in oil and gas operations. The surfactant compositions are stable under harsh conditions, including in formations that exhibit high salinity, high temperature, and/or high H2S concentration. Also provided are methods of using these compositions. Specifically an aqueous composition comprising: (i) a surfactant package, wherein the surfactant package comprises: (a) a surfactant comprising a branched, unbranched, saturated, or unsaturated C6-C32:80(0-65):PO(0-65):EO(0-100)-X having a concentration within the aqueous composition of from 0.05%-5% by weight, based on the total weight of the aqueous composition, wherein there is at least one BO, PO, or EO group, and wherein X comprises a sulfonate, a disulfonate, a carboxylate, a dicarboxylate, a sulfosuccinate, a disulfosuccinate, or hydrogen: and (b) olefin sulfonate and/or a disulfonate; and (ii) water.
    Type: Application
    Filed: January 25, 2021
    Publication date: March 30, 2023
    Inventors: Gayani W. PINNAWALA, Nabijan NIZAMIDIN, Varadarajan DWARAKANATH, Guo-Qing TANG, Aaron WILHELM, Scott P. WEST
  • COMPOSITIONS FOR USE IN OIL AND GAS OPERATIONS
    Publication number: 20220372363
    Abstract: Disclosed are compositions and methods for use in oil and gas operations.
    Type: Application
    Filed: February 14, 2022
    Publication date: November 24, 2022
    Inventors: Dennis A. Alexis, Gayani Pinnawala Arachchilage, Varadarajan Dwarakanath, Do Hoon Kim, Taimur Malik, Gregory A. Winslow, Aaron Wilhelm
  • METHODS FOR USE IN OIL AND GAS OPERATIONS
    Publication number: 20220098470
    Abstract: Disclosed are compositions and methods for use in oil and gas operations.
    Type: Application
    Filed: May 17, 2021
    Publication date: March 31, 2022
    Inventors: Dennis A. Alexis, Gayani Pinnawala Arachchilage, Varadarajan Dwarakanath, Do Hoon Kim, Taimur Malik, Gregory A. Winslow, Aaron Wilhelm
  • Compositions for use in oil and gas operations
    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
  • Methods for preparing an aqueous surfactant-polymer solution
    Patent number: 11008502
    Abstract: Disclosed are compositions and methods for use in oil and gas operations.
    Type: Grant
    Filed: January 30, 2019
    Date of Patent: May 18, 2021
    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
  • COMPOSITIONS FOR USE IN OIL AND GAS OPERATIONS
    Publication number: 20190233715
    Abstract: Disclosed are compositions and methods for use in oil and gas operations.
    Type: Application
    Filed: January 30, 2019
    Publication date: August 1, 2019
    Inventors: Dennis A. ALEXIS, Gayani PINNAWALA ARACHCHILAGE, Varadarajan DWARAKANATH, Do Hoon KIM, Taimur MALIK, Gregory A. WINSLOW, Aaron WILHELM
  • Methods for Use in Oil and Gas Operations
    Publication number: 20190233716
    Abstract: Disclosed are compositions and methods for use in oil and gas operations.
    Type: Application
    Filed: January 30, 2019
    Publication date: August 1, 2019
    Inventors: Dennis A. ALEXIS, Gayani PINNAWALA ARACHCHILAGE, Varadarajan DWARAKANATH, Do Hoon KIM, Taimur MALIK, Gregory A. WINSLOW, Aaron WILHELM