发明名称 ECCENTRIC SLEEVE FOR DIRECTIONAL DRILLING SYSTEMS
摘要 A drill bit includes a bit body configured to rotate about a bit rotational axis and a sleeve coupled to the bit body. The sleeve is coupled to the bit body on an uphole portion of the bit body. The sleeve has a smaller diameter than the bit body and is aligned at the edge of the circumference of the bit body.
申请公布号 WO2013066695(A3) 申请公布日期 2014.01.23
申请号 WO2012US61774 申请日期 2012.10.25
申请人 HALLIBURTON ENERGY SERVICES, INC. 发明人 CHEN, SHILIN
分类号 E21B7/06 主分类号 E21B7/06
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