发明名称 |
Fremgangsmõte for bestemmelse av ekvivalent statisk slamdensitet under en forbindelse ved bruk av nedihulls trykkmõlinger |
摘要 |
<p>The present invention presents a method that effectively provides the near real-time advantage of annular pressure while drilling (APWD) measurements taken during pipe connections that require the mud circulation pumps to be turned off (a "pumps-off" condition). APWD data, such as pressure measurements, are obtained from instruments and related electronics within the bottom-hole assembly (BHA). APWD data can be measured, stored and even processed in the BHA during a pumps-off condition for subsequent processing or communication of a reduced amount of data to the driller at the surface.</p> |
申请公布号 |
NO20001073(D0) |
申请公布日期 |
2000.03.02 |
申请号 |
NO20000001073 |
申请日期 |
2000.03.02 |
申请人 |
SCHLUMBERGER HOLDINGS LTD |
发明人 |
HACHE, JEAN-MICHEL;REZMER-COOPER, IAIN MICHAEL;GZARA, KAIS |
分类号 |
E21B47/06;(IPC1-7):E21B |
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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