Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
March 6, 2007
Patent Application Number
10775425
Date Filed
February 10, 2004
Patent Citations Received
Patent Primary Examiner
Patent abstract
A drilling system for drilling a bore hole into a subterranean earth formation, wherein at least a portion of the mud flow from the primary mud pump is diverted to the mud discharge outlet, thereby creating a backpressure system to readily increase annular pressure.
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