发明名称 Determining drill string status in a wellbore
摘要 A method for determining a status of a drill string in a wellbore. The method can include obtaining pressure data and hook load data for the drill string. The pressure data can be filtered to obtain pressure sections. A low pressure threshold can be determined based upon the pressure sections. The hook load data can be filtered to obtain hook load sections. Hook load baselines can be determined based upon the hook load sections. Dynamic thresholds can be determined based upon the hook load baselines. An in-slips status of the drill string can be determined based upon the low pressure threshold, the dynamic thresholds, or both.
申请公布号 GB201220455(D0) 申请公布日期 2012.12.26
申请号 GB20120020455 申请日期 2012.11.14
申请人 SCHLUMBERGER HOLDINGS LIMITED 发明人
分类号 主分类号
代理机构 代理人
主权项
地址