Patents by Inventor Otavio Maffud CILLI

Otavio Maffud CILLI 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).

  • Prevention of gas migration through downhole control lines
    Patent number: 11125346
    Abstract: A gas migration prevention module can include a housing, control line connections configured to connect the housing between control line sections, spaced apart pistons sealingly received in the housing, and a fluid volume defined between the pistons. A control line system can include an upper control line section, a lower control line section in fluid communication with a downhole tool, and a gas migration prevention module connected between the upper and lower control line sections, the lower control line section providing fluid communication between the gas migration prevention module and the downhole tool, and the gas migration prevention module comprising spaced apart pistons and a fluid volume defined between the pistons, the fluid volume being in fluid communication with an exterior of the gas migration prevention module.
    Type: Grant
    Filed: April 30, 2019
    Date of Patent: September 21, 2021
    Assignee: Weatherford Technology Holdings, LLC
    Inventors: Otavio Maffud Cilli, Don A. Hopmann
  • PREVENTION OF GAS MIGRATION THROUGH DOWNHNOLE CONTROL LINES
    Publication number: 20200347945
    Abstract: A gas migration prevention module can include a housing, control line connections configured to connect the housing between control line sections, spaced apart pistons sealingly received in the housing, and a fluid volume defined between the pistons. A control line system can include an upper control line section, a lower control line section in fluid communication with a downhole tool, and a gas migration prevention module connected between the upper and lower control line sections, the lower control line section providing fluid communication between the gas migration prevention module and the downhole tool, and the gas migration prevention module comprising spaced apart pistons and a fluid volume defined between the pistons, the fluid volume being in fluid communication with an exterior of the gas migration prevention module.
    Type: Application
    Filed: April 30, 2019
    Publication date: November 5, 2020
    Inventors: Otavio Maffud CILLI, Don A. HOPMANN