Patents by Inventor Elizabeth Diane Nicholson

Elizabeth Diane Nicholson 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 for reducing sand production
    Patent number: 6827144
    Abstract: A method for optimally orienting perforations in a subterranean formation is disclosed, the optimization process being based on establishing the orientation of bedding planes in the formation and, where applicable, hole size effects while determining an orientation of the perforation that balances the stress concentration along the circumference of the cross-section between perforation and bedding plane in further improvements of the method inhomogeneous stress distributions and permeability are included into the optimization process.
    Type: Grant
    Filed: March 24, 2003
    Date of Patent: December 7, 2004
    Assignee: Schlumberger Technology Corporation
    Inventor: Elizabeth Diane Nicholson
  • Method for reducing sand production
    Publication number: 20030168216
    Abstract: A method for optimally orienting perforations in a subterranean formation is disclosed, the optimization process being based on establishing the orientation of bedding planes in the formation and, where applicable, hole size effects while determining an orientation of the perforation that balances the stress concentration along the circumference of the cross-section between perforation and bedding plane in further improvements of the method inhomogeneous stress distributions and permeability are included into the optimization process.
    Type: Application
    Filed: March 24, 2003
    Publication date: September 11, 2003
    Inventor: Elizabeth Diane Nicholson