发明名称 |
LAG CALCULATION WITH CAVING CORRECTION IN OPEN HOLE |
摘要 |
A gas analyzer system that can detect atmospheric air gasses in drilling mud is used to calculate an actual lag time in a well. The calculated lag time and a theoretical lag time may be compared to estimate a caving percentage in an open hole section of the well. |
申请公布号 |
EP2691605(A4) |
申请公布日期 |
2015.12.30 |
申请号 |
EP20120763314 |
申请日期 |
2012.02.21 |
申请人 |
WEATHERFORD TECHNOLOGY HOLDINGS, LLC |
发明人 |
FRUNZA, GABRIEL |
分类号 |
E21B47/00;E21B47/10 |
主分类号 |
E21B47/00 |
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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