发明名称 |
INSTALLATION METHOD OF SHAPED OVERLAPPING MECHANISM IN WELL AND DEVICE FOR ITS IMPLEMENTATION |
摘要 |
FIELD: mining. ^ SUBSTANCE: prior to the start-up of overlapping mechanism it is equipped with bypass mechanism that provides pressure equalisation outside and inside the overlapping mechanism at its lowering with the well flushing, which prevents premature irreversible plastic deformation of shapes of the overlapping mechanism at excess pressure in the overlapping mechanism over critical value. After the overlapping mechanism is lowered to the well installation interval, bypass mechanism is switched off and overlapping mechanism is installed. ^ EFFECT: improving installation reliability of overlapping mechanism. ^ 4 cl, 10 dwg |
申请公布号 |
RU2435930(C1) |
申请公布日期 |
2011.12.10 |
申请号 |
RU20100121098 |
申请日期 |
2010.05.25 |
申请人 |
OTKRYTOE AKTSIONERNOE OBSHCHESTVO "TATNEFT'" IMENI V.D. SHASHINA |
发明人 |
RATANOV KONSTANTIN ALEKSEEVICH;ABDRAKHMANOV GABDRASHIT SULTANOVICH;KHAMIT'JANOV NIGAMAT'JAN KHAMITOVICH;MELING KONSTANTIN VIKTOROVICH;VIL'DANOV NAIL' NAZYMOVICH;BAGNJUK SERGEJ LEONIDOVICH |
分类号 |
E21B29/10 |
主分类号 |
E21B29/10 |
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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