发明名称 |
Single drilling base for subsea oil wells |
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 |
GB2288832(B) |
申请公布日期 |
1996.03.27 |
申请号 |
GB19950006589 |
申请日期 |
1995.03.30 |
申请人 |
* PETROLEO BRASILEIRO S A - PETROBRAS |
发明人 |
SAMIR PASSOS * AWAD;EMMANUEL FRANCO * NOGUEIRA |
分类号 |
E21B33/035;E21B41/00;(IPC1-7):E21B7/128 |
主分类号 |
E21B33/035 |
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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