Patents by Inventor Cezar Augusto Silva Paulo

Cezar Augusto Silva Paulo 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).

  • Free standing riser system and method of installing same
    Patent number: 7934560
    Abstract: A free standing riser system includes a riser, a subsea intervention unit, and an umbilical line. The riser includes interconnected joints linked to one another, a lower-end of the riser being coupled to a wellhead and an upper-end of the riser enclosed in a buoy assembly, including a terminal, the riser being maintained in an erect, substantially vertical position. The subsea intervention unit is provided above the riser, and includes three connections: one connection to the terminal of the riser, one connection to a flexible jumper that is connected to a FPU, and one connection that provides a vertical conveyance to an intervention rig.
    Type: Grant
    Filed: April 10, 2008
    Date of Patent: May 3, 2011
    Assignee: Petroleo Brasileiro S.A. - Petrobras
    Inventors: Francisco Edward Roveri, Cezar Augusto Silva Paulo, Roberto Rodrigues, Renato Brandão Mansano, Carlos Alberto Giacomin Pereira
  • FREE STANDING RISER SYSTEM AND METHOD OF INSTALLING SAME
    Publication number: 20080223583
    Abstract: A free standing riser system includes a riser, a subsea intervention unit, and an umbilical line. The riser includes interconnected joints linked to one another, a lower-end of the riser being coupled to a wellhead and an upper-end of the riser enclosed in a buoy assembly, including a terminal, the riser being maintained in an erect, substantially vertical position. The subsea intervention unit is provided above the riser, and includes three connections: one connection to the terminal of the riser, one connection to a flexible jumper that is connected to a FPU, and one connection that provides a vertical conveyance to an intervention rig.
    Type: Application
    Filed: April 10, 2008
    Publication date: September 18, 2008
    Applicant: PETROLEO BRASILEIRO S.A. - PETROBRAS
    Inventors: Francisco Edward Roveri, Cezar Augusto Silva Paulo, Roberto Rodrigues, Renato Brandao Mansano, Carlos Alberto Giacomin Pereira
  • Integrated base for oil drilling and production work
    Patent number: 5441112
    Abstract: An integrated oil drilling and producing base includes a single guiding funnel for guiding a wet Christmas tree into the proper position on a high pressure well head. The single guiding funnel has a cylindrical downcomer for resting directly on the high pressure well head, at least one cradle on the guiding funnel and at least one pipeline terminal hingedly mounted on said at least one cradle. The guiding funnel has a plurality of slits for allowing passage of a plurality of pipelines therethrough for connection to a respective terminal on the funnel and for connection of each terminal to the wet Christmas tree.
    Type: Grant
    Filed: April 26, 1994
    Date of Patent: August 15, 1995
    Assignee: Petroleo Brasilerio S.A. - Petrobras
    Inventors: Eduardo de Melo Sanches, Samir P. Awad, Cezar Augusto Silva Paulo, Orlando Jose Soares Ribeiro