发明名称 |
Anordning for mÕling av forskyvningen hos en svivel ved en boremast |
摘要 |
PCT No. PCT/FR92/00179 Sec. 371 Date Dec. 14, 1992 Sec. 102(e) Date Dec. 14, 1992 PCT Filed Feb. 27, 1992 PCT Pub. No. WO92/15772 PCT Pub. Date Sep. 17, 1992.A device for measuring the movement of a drill pipe string, the end of which is held during drilling by an attachment assembly (12) movably along at least one guide rail (16), comprises a sensor assembly (38) mounted on the attachment assembly with a roller (42) designed to run on the rail as the attachment assembly moves. |
申请公布号 |
NO305040(B1) |
申请公布日期 |
1999.03.22 |
申请号 |
NO19920004054 |
申请日期 |
1992.10.20 |
申请人 |
ELF EXPLORATION PRODUCTION |
发明人 |
ETCHEGOYEN, DIDIER;HENNEUSE, HENRY |
分类号 |
E21B45/00;E21B47/04;(IPC1-7):E21B19/02 |
主分类号 |
E21B45/00 |
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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