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. 30, 2010
Filed:
Oct. 10, 2005
Applicants:
Paul Howlett, Aberdeen, GB;
Michael Wardley, Laurencekirk, GB;
Graeme Marr, Inverurie, GB;
Inventors:
Assignee:
Caledus Limited, Aberdeen, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 23/00 (2006.01); E21B 43/10 (2006.01);
U.S. Cl.
CPC ...
Abstract
Apparatus, such as a liner, adapted to be hung in a downhole tubular such as casing is described. The apparatus includes one or more circumferentially distributed abrasive portions, arranged to be movable radially outwards by a dimple former or an expander. In an embodiment, the abrasive portions are provided on disks moveable in recesses in the outer diameter of the apparatus being hung. In an embodiment, the apparatus is hung by operating a dimple former provided on the running tool.