Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Kent Perry0
Hamid A Abbasi0
Iraj Salehi0
Date of Patent
October 19, 2010
0Patent Application Number
123611820
Date Filed
January 28, 2009
0Patent Primary Examiner
Patent abstract
A method and apparatus for drilling a subterranean formation or material utilizing a drilling apparatus which includes a drill string having a leading end and a trailing end and having a bottom hole assembly connected with the leading end. The bottom hole assembly includes a drill bit and an externally threaded screw section. In operation, the drill bit is rotated, forming material cuttings and an opening in the subterranean formation, and the threaded screw section is rotated within the opening, forming a helical groove in the subterranean formation.
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