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发明名称
Apparatus and method for providing fluid and projectiles to downhole tubulars
摘要
申请公布号
GB2469590(B)
申请公布日期
2011.02.16
申请号
GB20100011362
申请日期
2008.05.23
申请人
SMITH INTERNATIONAL, INC.
发明人
RICHARD DAVID PEER;ROBERT JAMES COSTO JR
分类号
E21B33/05
主分类号
E21B33/05
代理机构
代理人
主权项
地址
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