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:
Dec. 09, 2003
Filed:
Mar. 19, 2002
Applicant:
Inventors:
Ian Alastair Kirk, Aberdeen, GB;
William Barron, Aberdeen, GB;
Alistair Bertrum Clark, Aberdeen, GB;
Assignee:
Downhole Products PLC, Aberdeen, GB;
Primary Examiner:
Int. Cl.
CPC ...
E21B 1/714 ;
U.S. Cl.
CPC ...
E21B 1/714 ;
Abstract
A tubing shoe ( ) comprising: a body ( ) for mounting on the end of a tubing string; and reaming members ( ) extending longitudinally and helically around the body, the reaming members providing substantially complete circumferential coverage of the body whereby, in use, when the tubing shoe is advanced axially into a bore, the reaming members ( ) provide reaming around the shoe circumference. A rotatable torque reducing sleeve or centraliser ( ) may also be mounted on the body, rearwardly of the reaming members.