圩顶专利名称：ROTARY STEERABLE DRILLING SYSTEM
怎样注销微信账号发明人：SAVAGE, John Keith,WINSLOW, Daniel Martin 申请号：EP12884605.2笑傲江湖曲子
申请日：20120914有春的成语
公开号：EP2880243B1
合并成本
公开日：
20171011描写灯笼的诗句
专利内容由知识产权出版社提供茉莉的养殖方法及修剪
摘要：A rotary steerable drilling system includes a housing, a drive shaft passing through the housing, a shaft/housing locking mechanism dispod to lectively engage the drive shaft and the housing, and an anti-rotation mechanism dispod to engage a wellbore wall. Shaft/housing locking mechanism includes a first configuration in which rotation of the drive shaft is independent of the housing, and a cond configuration in which rotation of the drive shaft caus rotation of the housing. Anti-rotation mechanism includes a first configuration in which the anti-rotation mechanism extends radially relative to the drive shaft, and a cond configuration in which the anti-rotation mechanism retracts from engagement with the wellbore wall. A timing mechanism may be employed to transition the anti-rotation mechanism from the first configuration to the cond configuration before the shaft/housing locking mechanism transitions from the first configuration to the cond configuration.
申请人：Halliburton Energy Services, Inc.
代理机构：Hoffmann Eitle
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