发明名称 |
Apparat og fremgangsmåte for regulering av formasjonstrykk |
摘要 |
A system and method for controlling formation pressures during drilling of a subterranean formation utilizing a selectively fluid backpressure system in which fluid is pumped down the drilling fluid return system in response to detected borehole pressures. A pressure monitoring system is further provided to monitor detected borehole pressures, model expected borehole pressures for further drilling and control the fluid backpressure system. |
申请公布号 |
NO338967(B1) |
申请公布日期 |
2016.11.07 |
申请号 |
NO20040003906 |
申请日期 |
2004.09.17 |
申请人 |
PRAD RESEARCH AND DEVELOPMENT LTD |
发明人 |
RIET EGBERT JAN VAN |
分类号 |
E21B21/08;E21B21/10;E21B44/00 |
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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