| 发明名称 |
Base-guia única para perfuração de poços submarinos de petróleo |
| 摘要 |
<p>A single drilling guide base for subsea oil wells includes two parts, namely a lower part (1) and an upper part (2), which are bolted together (at 7). The whole arrangement is provided with a seating indicator (5) connected to the lower part and holes in a funnel shaped portion of the upper part for the discharge of gravel.</p> |
| 申请公布号 |
BR9401593(A) |
申请公布日期 |
1995.11.21 |
| 申请号 |
BR19949401593 |
申请日期 |
1994.04.25 |
| 申请人 |
PETROLEO BRASILEIRO S/A - PETROBRAS |
发明人 |
AWAD SAMIR PASSOS;EMANUEL FRANCO NOGUEIRA |
| 分类号 |
E21B33/035;E21B41/00;(IPC1-7):E21B17/00 |
主分类号 |
E21B33/035 |
| 代理机构 |
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代理人 |
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