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专利名称：Drilling Method
发明人：Ian Forster,Alan Eddison,Alastair MacFarlane申请号：US12568720申请日：20090929
公开号：US2010007A1公开日：20100415
专利附图：
摘要：A drilling method comprises controlling operation of a drill string to maintain atleast a portion of the drill string in forward whirl.
申请人：Ian Forster,Alan Eddison,Alastair MacFarlane
地址：Aberdeen GB,Aberdeen GB,Aberdeen GB
国籍：GB,GB,GB
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