发明名称 Well drilling control system
摘要 An improved oil and gas drilling control system which utilizes improved braking and feedback technology which, in turn, permits more precise weight-on-bit control and more smooth transitions of weight-on-bit than any existing technology. In addition, the system also permits more accurate feedback and control with respect to drilling depth, pipe transitions, and rate of penetration than prior systems.
申请公布号 US6994172(B2) 申请公布日期 2006.02.07
申请号 US20020178802 申请日期 2002.06.24
申请人 RAY JAMES 发明人 RAY JAMES
分类号 E21B19/00;E21B44/02 主分类号 E21B19/00
代理机构 代理人
主权项
地址