Patents by Inventor Petrus A. J. Stevens

Petrus A. J. Stevens 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).

  • Wellbore apparatus and methods for zonal isolations and flow control
    Patent number: 9303485
    Abstract: Method for completing a wellbore in a subsurface formation includes providing a sand control device representing one or more joints of sand screens, and a packer assembly along the joints with at least one mechanically-set packer with at least one alternate flow channel therein. Running the packer assembly and connected sand screen into the wellbore, setting a mechanically-set packer into engagement with the surrounding wellbore, injecting gravel slurry into the wellbore to form a gravel pack. An elongated isolation string is run into the sand control device across the packer assembly with valves that serve as an inflow control device. Thereafter, seals are activated around the isolation string and adjacent the packer assembly. A zonal isolation apparatus allows flow control to be provided above and below packer assembly.
    Type: Grant
    Filed: December 6, 2011
    Date of Patent: April 5, 2016
    Assignee: ExxonMobil Upstream Research Company
    Inventors: Michael T. Hecker, Michael D. Barry, Petrus A. J. Stevens, David A. Howell, Charles S. Yeh, Iain M. Macleod, Lee Mercer, Stephen Reid, Andrew J. Elrick
  • Wellbore Apparatus and Methods For Zonal Isolations and Flow Contgrol
    Publication number: 20130248178
    Abstract: Method for completing a wellbore in a subsurface formation includes providing a sand control device representing one or more joints of sand screens, and a packer assembly along the joints with at least one mechanically-set packer with at least one alternate flow channel therein. Running the packer assembly and connected sand screen into the wellbore, setting a mechanically-set packer into engagement with the surrounding wellbore, injecting gravel slurry into the wellbore to form a gravel pack. An elongated isolation string is run into the sand control device across the packer assembly with valves that serve as an inflow control device. Thereafter, seals are activated around the isolation string and adjacent the packer assembly. A zonal isolation apparatus allows flow control to be provided above and below packer assembly.
    Type: Application
    Filed: December 6, 2011
    Publication date: September 26, 2013
    Inventors: Michael T. Hecker, Michael D. Barry, Petrus A. J. Stevens, David A. Howell, Charles S. Yeh, Iain M. Macleod, Lee Mercer, Stephen Reid, Andew J. Elrick