发明名称 REAMER WITH IMPROVED PERFORMANCE CHARACTERISTICS IN HARD AND ABRASIVE FORMATIONS
摘要 A reamer is designed to enhance operation of a bottom hole assembly in which it is included. One or more capabilities and/or characteristics of the cutters carried by the reamer blocks of the reamer may be varied even in the same profile portion to enhance the functionality and/or durability of the reamer.
申请公布号 EP2885482(A1) 申请公布日期 2015.06.24
申请号 EP20130829693 申请日期 2013.08.13
申请人 CHEVRON U.S.A. INC. 发明人 MENSA-WILMOT, GRAHAM
分类号 E21B10/26;E21B7/28 主分类号 E21B10/26
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