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发明名称
RECIRCULATABLE BALL-DROP RELEASE DEVICE FOR LATERAL OILWELL DRILLING APPLICATIONS
摘要
申请公布号
EP1261801(B1)
申请公布日期
2007.01.03
申请号
EP20010910675
申请日期
2001.02.14
申请人
HALLIBURTON ENERGY SERVICES, INC.
发明人
CHANG, CHI-HUANG, MICHAEL;ESTEP, JAMES, W.;ODELL, ALBERT, C., II
分类号
E21B17/06;E21B23/00;E21B23/04
主分类号
E21B17/06
代理机构
代理人
主权项
地址
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