发明名称 |
Drilling fluid flow monitoring system |
摘要 |
The present invention provides a fluid flow measurement system for an oil well drilling system that includes a supply of drilling fluid to a wellbore under pressure and a return line carrying fluid leaving the wellbore during drilling of the wellbore. The system includes at least one floating sensor in the return line that provides a measure of the velocity of the fluid in the return line. The sensor may be a thermal sensor, an electromagnetic sensor or an ultrasonic sensor. A height sensor provides the fluid level in the return line and a density sensor provides the density of the returning fluid. A controller determines the inflow rate and out flow rate of the drilling fluid and further determines the presence of a kick and wash out from the flow rates. The system also determines the operating condition of the pumps supplying fluid to the wellbore.
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申请公布号 |
US6257354(B1) |
申请公布日期 |
2001.07.10 |
申请号 |
US19980197300 |
申请日期 |
1998.11.20 |
申请人 |
BAKER HUGHES INCORPORATED |
发明人 |
SCHRADER HARTMUT;REIBER FRANK |
分类号 |
E21B21/08;G01F1/684;G01P5/00;(IPC1-7):E21B21/08 |
主分类号 |
E21B21/08 |
代理机构 |
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代理人 |
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地址 |
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