Patents by Inventor Gustavo Andrew Oliveira

Gustavo Andrew Oliveira 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).

  • Patent number: 10435982
    Abstract: A downhole plug having a plug body which includes (i) a base cylinder with a first outward facing locking surface and a central bore formed there through, (ii) a single set of circumferentially spaced slip ramps formed on the base cylinder, and (iii) slip guides positioned between the slip ramps, the slip guides having a second inward facing locking surface. The plug includes a single set of slips which a plurality of slip wedges with each slip wedge engaging a slip ramp. A slip compression cap is configured to urge the slip wedges along the slip ramps and the slip compression cap includes a locking ring having a third outward facing locking surface. A compression shoulder is configured to move a ratchet ring into contact with the first locking surface on the base cylinder and the ratchet ring includes a fourth inward facing locking surface.
    Type: Grant
    Filed: March 15, 2017
    Date of Patent: October 8, 2019
    Assignee: Superior Energy Services, LLC
    Inventors: Piro Shkurti, Gustavo Andrew Oliveira, Iain Greenan
  • Publication number: 20170268310
    Abstract: A downhole plug having a plug body which includes (i) a base cylinder with a first outward facing locking surface and a central bore formed there through, (ii) a single set of circumferentially spaced slip ramps formed on the base cylinder, and (iii) slip guides positioned between the slip ramps, the slip guides having a second inward facing locking surface. The plug includes a single set of slips which a plurality of slip wedges with each slip wedge engaging a slip ramp. A slip compression cap is configured to urge the slip wedges along the slip ramps and the slip compression cap includes a locking ring having a third outward facing locking surface. A compression shoulder is configured to move a ratchet ring into contact with the first locking surface on the base cylinder and the ratchet ring includes a fourth inward facing locking surface.
    Type: Application
    Filed: March 15, 2017
    Publication date: September 21, 2017
    Inventors: Piro Shkurti, Gustavo Andrew Oliveira, Iain Greenan