| 发明名称 |
Apparatus and method of determining casing thickness and permeability |
| 摘要 |
A casing inspection device with magnets and flux sensors. The sensors provide measurements of absolute levels of magnetic flux that are indicative of changes in casing thickness and/or permeability.
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| 申请公布号 |
US7403000(B2) |
申请公布日期 |
2008.07.22 |
| 申请号 |
US20050078545 |
申请日期 |
2005.03.11 |
| 申请人 |
BAKER HUGHES INCORPORATED |
发明人 |
BAROLAK JOSEPH GREGORY;SPENCER DOUGLAS W.;MILLER JERRY E.;GIRRELL BRUCE I.;LYNCH JASON A.;WALTER CHRIS J. |
| 分类号 |
G01N27/72;G01V3/00 |
主分类号 |
G01N27/72 |
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