发明授权
- 专利标题： Downhole reamer asymmetric cutting structures
- 专利标题（中）： 井下铰刀不对称切割结构
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申请号： US12893652申请日： 2010-09-29
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公开(公告)号： US08550188B2公开(公告)日： 2013-10-08
- 发明人: Navish Makkar , Tommy G. Ray , Manoj Mahajan , Dwayne P. Terracina , Sameer Bhoite
- 申请人： Navish Makkar , Tommy G. Ray , Manoj Mahajan , Dwayne P. Terracina , Sameer Bhoite
- 申请人地址： US TX Houston
- 专利权人： Smith International, Inc.
- 当前专利权人： Smith International, Inc.
- 当前专利权人地址： US TX Houston
- 代理机构： Osha Liang LLP
- 主分类号： E21B10/00
- IPC分类号： E21B10/00
摘要：
A cutting structure for use with a reamer in enlarging a borehole in a subterranean formation includes a plurality of cutter blocks, radially extendable from a reamer body away from a central axis of the reamer body, each of the plurality of cutter blocks comprising at least one cutter blade thereon, wherein an angular spacing about the central axis of the reamer body between the at least one cutter blade on each of the plurality of cutter blocks is unequal.
公开/授权文献
- US20120073879A1 DOWNHOLE REAMER ASYMMETRIC CUTTING STRUCTURES 公开/授权日：2012-03-29
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