| 发明名称 |
DEVICE FOR TREATMENT OF WELL BOTTOM |
| 摘要 |
FIELD: oil and gas production industry. SUBSTANCE: device has explosive charge fastened to blasting cable. Device is provided with perforated tube string with its lower end made with circular protrusion and non-return valve. Upper end of tube string is provided with mounting unit for fixing at well head. EFFECT: high efficiency. 2 cl, 1 dwg |
| 申请公布号 |
RU2088757(C1) |
申请公布日期 |
1997.08.27 |
| 申请号 |
RU19950109129 |
申请日期 |
1995.06.05 |
| 申请人 |
VSEROSSIJSKIJ PROEKTNO-IZYSKATELSKIJ I NAUCHNO-ISSLEDOVATELSKIJ INSTITUT PROMYSHLENNOJ TEKHNOLOGII;VSEROSSIJSKIJ NAUCHNO-ISSLEDOVATELSKIJ INSTITUT PRIRODNYKH GAZOV I GAZOVYKH TEKHNOLOGIJ |
发明人 |
GRITSENKO ALEKSANDR I;PRIKHODKO NIKOLAJ K |
| 分类号 |
E21B43/263;E21B37/00;E21B43/18;E21B43/25 |
主分类号 |
E21B43/263 |
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