| 发明名称 |
Adaptive pump control for positive displacement pump failure modes |
| 摘要 |
Detecting a failure mode of a fluid flow controller configured to control fluid flow between first and second chambers of a downhole positive displacement pump and a flow line, wherein the positive displacement pump comprises a piston moving in an axial reciprocating motion, and subsequently adjusting operation of the downhole positive displacement pump based on the detected failure mode such that the downhole positive displacement pump piston operates differently in different axial directions. |
| 申请公布号 |
US8757986(B2) |
申请公布日期 |
2014.06.24 |
| 申请号 |
US201113184684 |
申请日期 |
2011.07.18 |
| 申请人 |
Schlumberger Technology Corporation |
发明人 |
Villareal Steven;Pop Julian J;Hoefel Albert;Harms Kent David |
| 分类号 |
F04B49/00 |
主分类号 |
F04B49/00 |
| 代理机构 |
|
代理人 |
Hewitt Cathy;Vereb John |
| 主权项 |
1. A method, comprising:
detecting a failure mode of a fluid flow controller configured to control fluid flow between first and second chambers of a downhole positive displacement pump and a flow line, wherein the positive displacement pump comprises a piston moving in an axial reciprocating motion; and adjusting operation of the downhole positive displacement pump based on the detected failure mode such that the downhole positive displacement pump piston operates differently in different axial directions.
|
| 地址 |
Sugar Land TX US |
