Patents by Inventor Pandu Wirawan

Pandu Wirawan 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).

  • Publication number: 20240167358
    Abstract: A method of installing a mechanical barrier in a wellhead includes receiving a false bowl within a bowl of a casing head housing of the wellhead, generating a first sealed interface between the false bowl and the bowl with one or more first seals arranged about an exterior of the false bowl, receiving a plug within the false bowl, generating a second sealed interface between the plug and the false bowl with one or more second seals arranged about an exterior of the plug, and receiving a back-pressure valve within the plug.
    Type: Application
    Filed: November 17, 2022
    Publication date: May 23, 2024
    Applicant: SAUDI ARABIAN OIL COMPANY
    Inventors: Mohammad Saeed ALSAEED, Mansour Abdullah ALAMER, Mohammed Eid ALMUKHLIFI, Mohammed K. MUQRI, Pandu WIRAWAN
  • Publication number: 20230349257
    Abstract: A wellhead assembly includes a production tree, a sacrificial fluid control assembly, an adaptor assembly, and a sleeve. The sacrificial fluid control assembly is fluidly coupled to the production tree. The adaptor assembly resides between the production tree and the sacrificial fluid control assembly. The adaptor assembly forms, with the adaptor assembly attached to the production tree and the sacrificial fluid control assembly, a common bore. The sleeve is disposed within the common bore and extends from the adaptor assembly to the tubing spool. The sleeve includes i) a first end that forms, with the adaptor or the sacrificial fluid control assembly, a first fluid seal, and ii) a second end opposite the first end and forming, with the tubing spool, a second fluid seal such that the sleeve fluidly isolates a first section of the common bore from a second section of the common bore.
    Type: Application
    Filed: April 27, 2022
    Publication date: November 2, 2023
    Inventors: Mohammed E. Mukhlifi, Mansour A. Amer, Mohammed K. Muqri, Pandu Wirawan