Drill bit distance to hole bottom measurement
作者： Benjamin P. Jeffryes , Gokturk Tunc , Jacques Orban , Shunfeng Zheng
DOI:
关键词: Roller reamer 、 Drill string 、 Casing string 、 Wellbore 、 Mechanical engineering 、 Drill bit 、 Hole opener 、 Drilling 、 Geology
摘要: Systems and methods for drilling a wellbore. The method includes measuring first distance that device is raised while connected to drill string, determining weight-on-bit in the second lower such bit at extremity of string approaches toward bottom wellbore, based on weight-on-bit, lowering by distance.
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