The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 22, 2010
Filed:
Sep. 24, 2007
Applicants:
Bernard Herman Van Bilderbeek, Houston, TX (US);
Craig Hendrie, Aberdeen, GB;
Inventors:
Bernard Herman Van Bilderbeek, Houston, TX (US);
Craig Hendrie, Aberdeen, GB;
Assignee:
Plexus Ocean Systems Ltd., Dyce, Aberdeen, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 33/03 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method and apparatus for installing casing hangers in a wellbore utilizing an externally activated gripping system to temporarily bind wearbushings secured to casing and tubing hangers in order to lock-down such hangers during various wellbore drilling activities, thereby minimizing the size of landing shoulders and eliminating additional lock down equipment and simplifying running procedures.