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1.发明授权Method and apparatus for reaming well bore surfaces nearer the center of drift 有权使钻孔表面更接近漂移中心的方法和装置公开(公告)号：US08813877B1
公开(公告)日：2014-08-26
申请号：US13517870
申请日：2012-06-14
摘要： The present invention provides a method and apparatus for increasing the drift diameter and improving the well path of the well bore, accomplished in one embodiment by cutting away material primarily forming surfaces nearer the center of the drift, thereby reducing applied power, applied torque and resulting drag compared to conventional reamers that cut into all surfaces of the well bore.
摘要翻译： 本发明提供了一种用于增加漂流直径并改善井眼的井径的方法和装置，在一个实施例中，通过切割主要形成更靠近漂移中心的表面的材料，从而减少施加的功率，施加的扭矩和结果 与传统的铰孔相比，其可以切入井眼的所有表面。
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公开(公告)号：US08851205B1
公开(公告)日：2014-10-07
申请号：US13441230
申请日：2012-04-06
IPC分类号： E21B10/26
摘要： The present invention provides a method and apparatus for increasing the drift diameter and improving the well path of the well bore, accomplished in one embodiment by cutting away material primarily forming surfaces nearer the center of the drift, thereby reducing applied power, applied torque and resulting drag compared to conventional reamers that cut into all surfaces of the well bore.
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