Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
James Livingstone0
Date of Patent
June 2, 2009
0Patent Application Number
113084520
Date Filed
March 27, 2006
0Patent Primary Examiner
Patent abstract
A cementing apparatus for use in cementing operations using concentric tubing or drill string such as concentric drill pipe, concentric coiled tubing, and the like is provided having an isolation cementing tool and a cementing flow control means. Concentric tubing or drill string adapted for use in cementing a well is further disclosed. A method for cementing a well using concentric tubing or drill string is also provided.
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