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:
Sep. 27, 2011
Filed:
Jun. 19, 2008
Applicant:
John Dewar, Edinburgh, GB;
Inventor:
John Dewar, Edinburgh, GB;
Assignee:
Swellfix BV, Rijswijk, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 33/13 (2006.01); E21B 27/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
An apparatus for delivering a material into a wellbore comprises a body adapted to be translated along a conduit within a wellbore, with a cavity formed in the body for containing a material to be delivered. The body defines an outlet adapted to be selectively opened to permit the material to be released from the cavity at the required location within the wellbore. In one arrangement the material includes swellable particles which expand upon contact with an activator.