发明名称 |
Closed-loop drawdown apparatus and method for in-situ analysis of formation fluids |
摘要 |
An apparatus and method capable of incrementally decreasing the borehole pressure at a variable rate by controlling a test volume within the borehole. The system includes an incrementally controllable pump, closed loop feedback and a controller for drawing down the pressure of a test volume to a level just below formation pressure. This incremental drawdown system will significantly reduce the overall measurement time, thereby increasing drilling efficiency and safety.
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申请公布号 |
US6609568(B2) |
申请公布日期 |
2003.08.26 |
申请号 |
US20010910209 |
申请日期 |
2001.07.20 |
申请人 |
BAKER HUGHES INCORPORATED |
发明人 |
KRUEGER VOLKER;MEISTER MATTHIAS;MICHAELS JOHN M.;LEE JAEDONG;JONES STANLEY C. |
分类号 |
E21B47/06;E21B49/00;E21B49/10;G01V11/00;(IPC1-7):E21B49/10 |
主分类号 |
E21B47/06 |
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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