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. 18, 2013
Filed:
Feb. 26, 2009
Applicants:
Kim Nutley, Inverurie, GB;
Brian Nutley, Aberdeen, GB;
Inventors:
Kim Nutley, Inverurie, GB;
Brian Nutley, Aberdeen, GB;
Assignee:
Swelltec Limited, Dyce, Aberdeen, GB;
Primary Examiner:
Int. Cl.
CPC ...
E21B 33/12 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method of forming a downhole apparatus comprises the steps of providing a body having a longitudinal axis and forming an expanding portion on the body from multiple layers of a partially or substantially cured material around the longitudinal axis of the body. The material is selected to increase in volume on exposure to at least one predetermined fluid, such as a wellbore fluid. Apparatuses formed by the method include wellbore packers.