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:
Mar. 01, 2011
Filed:
Feb. 24, 2005
James Bain, Inverbervie Montrose Angus, GB;
James Bain, Inverbervie Montrose Angus, GB;
Caledus Limited, Aberdeen, GB;
Abstract
A tubing shoe () for use on work strings in well bores as are typically utilised in oil and gas production. The shoe comprises a cylindrical body () upon which is arranged a reaming portion () including pairs of teardrop shaped raised reaming members (), each pair being mounted oppositely, in parallel and longitudinally along the body. Adjacent pairs of members provide a funnel () for collecting approaching debris and a channel for grinding the debris. A nose () may be mounted on the end of the shoe, the nose being eccentric or including cutting blades to assist the shoe in breaking through shale and clay stone bridges. A non-aggressive stabiliser () in the form of helically arranged blades may also be located on shoe.