| 发明名称 |
APPARATUS AND METHOD FOR PERFORMING DOWNHOLE MEASUREMENTS |
| 摘要 |
<p>An apparatus for performing a function in a flowing fluid includes an apparatus body and a drag member associated with the apparatus body and configurable between drag configuration for moving with the fluid wherein the apparatus has a first drag and a reduced drag configuration for moving against the fluid wherein the apparatus has a second drag which is less than the first drag.</p> |
| 申请公布号 |
CA2353176(C) |
申请公布日期 |
2005.06.07 |
| 申请号 |
CA20012353176 |
申请日期 |
2001.07.18 |
| 申请人 |
INTEVEP, S.A. |
发明人 |
ARAUJO, MARIELA;ESPIN, DOUGLAS;ZAPICO, JOSE;RANSON, AARON |
| 分类号 |
E21B23/00;E21B23/08;E21B27/02;E21B41/00;E21B47/00;E21B47/12;(IPC1-7):E21B47/00 |
主分类号 |
E21B23/00 |
| 代理机构 |
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代理人 |
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