发明名称 |
RIB-MOUNTED LOGGING-WHILE-DRILLING (LWD) SENSORS |
摘要 |
A Logging-while-Drilling method and apparatus for obtaining information about a formation uses a plurality of rib sets with pad-mounted sensor on one or more selectively non-rotating sleeves attached to a rotating housing that is part of a drilling assembly. The sensors may be density, neutron, NMR, resistivity, sonic, dielectric or any number of other sensors. In an alternative arrangement, the sensors rotate with the drill string. |
申请公布号 |
EP1344091(A2) |
申请公布日期 |
2003.09.17 |
申请号 |
EP20010998849 |
申请日期 |
2001.11.29 |
申请人 |
BAKER HUGHES INCORPORATED |
发明人 |
FREDERICKS, PAUL;MACCALLUM, DONALD |
分类号 |
E21B47/00;E21B47/01;G01V1/42;G01V1/52 |
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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