Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
John Dewar0
Date of Patent
September 27, 2011
0Patent Application Number
121422490
Date Filed
June 19, 2008
0Patent Citations Received
Patent Primary Examiner
Patent 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.
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