Patents by Inventor Cesar Gama

Cesar Gama 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).

  • Wireless perforating gun
    Patent number: 7762172
    Abstract: A loading tube for installation in the body of a perforating gun is disclosed. The loading tube holds a plurality of shaped charges whose detonation is electrically initiated, and the loading tube, when installed in the body, comprises at least a portion of the electrical circuit used to initiate detonation the shaped charge. In one embodiment, the loading tube comprises the hot portion of the electrical circuit, the body comprises the ground portion of the electrical circuit and the loading tube and the body are insulated from one another. Alternatively, the loading tube may comprise two distinct portions of conductive material which are electrically isolated from one another where the two portions of conductive material comprise the hot and ground portions of the electrical circuit. Additionally, a loading tube according to the present invention may comprise a conductor which is disposed in the loading tube near the outer surface of the loading tube and which is insulated from the loading tube.
    Type: Grant
    Filed: August 23, 2006
    Date of Patent: July 27, 2010
    Assignee: Schlumberger Technology Corporation
    Inventors: Haoming Li, Zheng Rong Xu, Chantal Smitheman, Cesar Gama, Alfredo Fayard
  • Apparatus and method to detect a signal associated with a component
    Patent number: 7383883
    Abstract: An apparatus for use in a well comprises a structure having at least a first portion formed of a first material, and a detector to detect a signal associated with a component located either within or beyond the structure. The first material has a property that reduces attenuation of the signal.
    Type: Grant
    Filed: August 15, 2005
    Date of Patent: June 10, 2008
    Assignee: Schlumberger Technology Corporation
    Inventors: David Gerez, Cesar Gama, Ethan Chabora
  • Wireless Perforating Gun
    Publication number: 20080047456
    Abstract: A loading tube for installation in the body of a perforating gun is disclosed. The loading tube holds a plurality of shaped charges whose detonation is electrically initiated, and the loading tube, when installed in the body, comprises at least a portion of the electrical circuit used to initiate detonation the shaped charge. In one embodiment, the loading tube comprises the hot portion of the electrical circuit, the body comprises the ground portion of the electrical circuit and the loading tube and the body are insulated from one another. Alternatively, the loading tube may comprise two distinct portions of conductive material which are electrically isolated from one another where the two portions of conductive material comprise the hot and ground portions of the electrical circuit. Additionally, a loading tube according to the present invention may comprise a conductor which is disposed in the loading tube near the outer surface of the loading tube and which is insulated from the loading tube.
    Type: Application
    Filed: August 23, 2006
    Publication date: February 28, 2008
    Applicant: Schlumberger Technology Corporation
    Inventors: Haoming Li, Zheng Rong Xu, Chantal Smitheman, Cesar Gama, Alfredo Fayard
  • Apparatus and Method To Detect A Signal Associated With A Component
    Publication number: 20070034374
    Abstract: An apparatus for use in a well comprises a structure having at least a first portion formed of a first material, and a detector to detect a signal associated with a component located either within or beyond the structure. The first material has a property that reduces attenuation of the signal.
    Type: Application
    Filed: August 15, 2005
    Publication date: February 15, 2007
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: David Gerez, Cesar Gama, Ethan Chabora