Patents by Inventor Abdulaziz S. Al Mutawa

Abdulaziz S. Al Mutawa 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).

  • Tieback assemblies with circulating subs for well intervention
    Patent number: 11773682
    Abstract: A tieback assembly for insertion into a wellbore may include a tieback stem seal, a check valve, and a circulating sub. The tieback stem seal may be engaged into a tieback receptacle of a liner in the wellbore and may isolate an annular space of the wellbore. The circulating sub may pass kill fluid from the tieback assembly into the annular space of the wellbore. The check valve may control a flow of fluid. A method of isolating an annular space of a wellbore may include inserting a tieback assembly into the wellbore, engaging the tieback stem seal of the tieback assembly at a tieback receptacle of a liner in the wellbore, passing a kill fluid into the annular space of the wellbore, and displacing an annulus fluid in the annular space of the wellbore with the kill fluid to isolate the annular space of the wellbore.
    Type: Grant
    Filed: January 14, 2021
    Date of Patent: October 3, 2023
    Assignee: Saudi Arabian Oil Company
    Inventors: Adib A. Al-Mumen, Abdulaziz S. Al Mutawa
  • TIEBACK ASSEMBLIES WITH CIRCULATING SUBS FOR WELL INTERVENTION
    Publication number: 20220220823
    Abstract: A tieback assembly for insertion into a wellbore may include a tieback stem seal, a check valve, and a circulating sub. The tieback stem seal may be engaged into a tieback receptacle of a liner in the wellbore and may isolate an annular space of the wellbore. The circulating sub may pass kill fluid from the tieback assembly into the annular space of the wellbore. The check valve may control a flow of fluid. A method of isolating an annular space of a wellbore may include inserting a tieback assembly into the wellbore, engaging the tieback stem seal of the tieback assembly at a tieback receptacle of a liner in the wellbore, passing a kill fluid into the annular space of the wellbore, and displacing an annulus fluid in the annular space of the wellbore with the kill fluid to isolate the annular space of the wellbore.
    Type: Application
    Filed: January 14, 2021
    Publication date: July 14, 2022
    Applicant: Saudi Arabian Oil Company
    Inventors: Adib A. Al-Mumen, Abdulaziz S. Al Mutawa