| 发明名称 |
Sistema de detecção de falha em poço e método de detecção de falha em poço |
| 摘要 |
<p>This invention relates to nondestructive control, more specifically, to the detection of cracks, flaws and other defects in oil and gas wells and cementing quality control.</p> |
| 申请公布号 |
BRPI0822878(A2) |
申请公布日期 |
2015.06.30 |
| 申请号 |
BR2008PI22878 |
申请日期 |
2008.06.11 |
| 申请人 |
PRAD RESEARCH AND DEVELOPMENT LIMITED |
发明人 |
ROMAN VLADIMIROVICH KORKIN;VIACHESLAV VIKTOROVICH POROSEV |
| 分类号 |
E21B47/00;E21B47/10;G01V5/12 |
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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