Patents by Inventor Rashid Al Maamari

Rashid Al Maamari 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).

  • Use of thermo-thickening polymers in the gas- and oilfield industry
    Patent number: 9267257
    Abstract: A process for the treatment of a rock formation or cavity, including the step of injecting, into the rock formation or cavity, a water solution of a water-soluble thermo-thickening polymer, the thermo-thickening polymer being able to form a gel at a threshold temperature (Tg), an inner temperature (Tint) of the rock formation or cavity being equal or superior to the threshold temperature (Tg), the process being characterized in that the thermo-thickening polymer is a cellulose chain, partially etherified with C1-C6 alkyl or hydroxyalkyl groups, or a polyacrylamide-based copolymer including N-isopropylacrylamide and/or N-vinylpyrrolidone groups. Such a process is advantageous for water shutoff in gas- or oilfields, or to solve to water channelling problems between injection wells and production wells.
    Type: Grant
    Filed: August 29, 2013
    Date of Patent: February 23, 2016
    Assignee: Poweltec
    Inventors: Alain Zaitoun, Guillaume Dupuis, Rashid Al Maamari, Abdulaziz Al Hashmi, Hamed Al Sharji
  • Use of Thermo-Thickening Polymers in the Gas- and Oilfield Industry
    Publication number: 20150233073
    Abstract: A process for the treatment of a rock formation or cavity, including the step of injecting, into the rock formation or cavity, a water solution of a water-soluble thermo-thickening polymer, the thermo-thickening polymer being able to form a gel at a threshold temperature (Tg), an inner temperature (Tint) of the rock formation or cavity being equal or superior to the threshold temperature (Tg), the process being characterized in that the thermo-thickening polymer is a cellulose chain, partially etherified with C1-C6 alkyl or hydroxyalkyl groups, or a polyacrylamide-based copolymer including N-isopropylacrylamide and/or N-vinylpyrrolidone groups. Such a process is advantageous for water shutoff in gas- or oilfields, or to solve to water channelling problems between injection wells and production wells.
    Type: Application
    Filed: August 29, 2013
    Publication date: August 20, 2015
    Inventors: Alain Zaitoun, Guillaume Dupuis, Rashid Al Maamari, Abdulaziz Al Hashmi, Hamed Al Sharji