| 发明名称 |
JET-TYPE PERFORATOR WITHOUT CARRIER |
| 摘要 |
Jet-type perforator without carrier relates to oil-and-gas producing industry, in particular to jet-type perforators for secondary opening of productive beds in drill-geological survey and operation wells and for renewal of circulation of drill solution. |
| 申请公布号 |
UA29773(U) |
申请公布日期 |
2008.01.25 |
| 申请号 |
UA20070011052U |
申请日期 |
2007.10.08 |
| 申请人 |
UKRAINIAN STATE GEOLOGICAL SURVEY INSTITUTE |
发明人 |
VOITENKO YURII IVANOVYCH;HOSHOVSKYI SERHII VOLODYMYROVYCH;DRACHUK OLEKSANDR HRYHOROVYCH |
| 分类号 |
E21B43/117 |
主分类号 |
E21B43/117 |
| 代理机构 |
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代理人 |
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| 主权项 |
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