Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
January 29, 2008
Patent Application Number
10780796
Date Filed
February 18, 2004
Patent Primary Examiner
Patent abstract
A method for drilling wells in which the tubular can be added or removed from the drill string whilst mud and drilling fluids being circulated continuously and kept separated from the environment to reduce pollution. A connector is used with an inlet and outlet for the mud etc. and which incorporates rams to seal off and separate the flow of mud as a tubular is added or removed.
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