Patents by Inventor Jean-Luc Lafontan

Jean-Luc Lafontan 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).

  • Method and apparatus for perforating with reduced debris in wellbore
    Patent number: 8424606
    Abstract: A perforating system having a perforating gun with a tubular gun housing defining an inner volume and extending in an axial direction. A shaped charge is held in a loading tube. The loading tube is located in the gun housing. The loading tube extends along the axial direction. The shaped charge faces in a firing direction substantially perpendicular to the axial direction. A portion of the gun housing adjacent to the shaped charge in the firing direction is a perforating portion for removal upon firing of the shaped charge. An eccentralizer member extends from the perforating gun in a second direction that is substantially opposite and parallel with the firing direction. A first retainer part extends from an outer surface of the gun housing adjacent to the perforating portion. A second retainer part extends from the outside of the gun housing adjacent to the perforating portion.
    Type: Grant
    Filed: June 26, 2009
    Date of Patent: April 23, 2013
    Assignee: Schlumberger Technology Corporation
    Inventors: Lang Zhan, Jean-Luc Lafontan, Harvey Williams, Jeremy P. Harvey, Brenden Grove, Lawrence A. Behrmann
  • METHOD AND APPARATUS FOR PERFORATING WITH REDUCED DEBRIS IN WELLBORE
    Publication number: 20100163238
    Abstract: A perforating system having a perforating gun with a tubular gun housing defining an inner volume and extending in an axial direction. A shaped charge is held in a loading tube. The loading tube is located in the gun housing. The loading tube extends along the axial direction. The shaped charge faces in a firing direction substantially perpendicular to the axial direction. A portion of the gun housing adjacent to the shaped charge in the firing direction is a perforating portion for removal upon firing of the shaped charge. An eccentralizer member extends from the perforating gun in a second direction that is substantially opposite and parallel with the firing direction. A first retainer part extends from an outer surface of the gun housing adjacent to the perforating portion. A second retainer part extends from the outside of the gun housing adjacent to the perforating portion.
    Type: Application
    Filed: June 26, 2009
    Publication date: July 1, 2010
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Lang Zhan, Jean-Luc Lafontan, Harvey Williams, Jeremy P. Harvey, Brenden Grove, Lawrence A. Behrmann