Patents by Inventor Chris P. Christensen

Chris P. Christensen 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).

  • Well casing apparatus and method
    Patent number: 5261492
    Abstract: The present invention provides an apparatus for casing a well. The inventive apparatus comprises: an outer casing; an inner casing positionable inside the outer casing; and a squeeze packer assembly incorporatable in the inner casing. The squeeze packer assembly is mechanically operable for sealing the annulus between the inner casing and the outer casing.The present invention also provides a method of installing an inner casing inside an outer casing. The inventive method comprises the steps of: (a) incorporating a mechanically operable squeeze packer assembly in the inner casing and (b) inserting the inner casing into the outer casing.
    Type: Grant
    Filed: March 31, 1992
    Date of Patent: November 16, 1993
    Assignee: Halliburton Company
    Inventors: Alan B. Duell, Anthony M. Badalamenti, Jonathan Garrett, Chris P. Christensen, Douglas K. Vrooman