发明名称 |
DRILLING APPARATUS INCLUDING A FLUID BYPASS DEVICE AND METHODS OF USING SAME |
摘要 |
A method and apparatus for drilling a wellbore is disclosed. The wellbore is drilled with a drill string that includes a bypass device having a fluid passage therethrough by supplying a fluid through the bypass device at a first flow rate, wherein the fluid circulates to a surface location via an annulus between the drill string and the wellbore. The flow rate of the fluid is altered to a second flow rate. A time period is defined and a mechanical motion of the bypass device is initiated. A parameter related to the mechanical motion of the bypass device and a parameter related to flow rate are detected. The bypass device is activated to divert a portion of the fluid to the annulus when the parameter related to mechanical motion is detected and the parameter related to flow rate is present during the defined time period. |
申请公布号 |
WO2017027650(A1) |
申请公布日期 |
2017.02.16 |
申请号 |
WO2016US46449 |
申请日期 |
2016.08.11 |
申请人 |
BAKER HUGHES INCORPORATED |
发明人 |
RODERS, Ingo;REGENER, Thorsten |
分类号 |
E21B21/08;E21B3/00;E21B21/10;E21B44/00;E21B47/06 |
主分类号 |
E21B21/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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