| 发明名称 |
DEVICE FOR PROTECTION OF OIL AND GAS PRODUCING WELLS FROM CORROSION |
| 摘要 |
FIELD: oil and gas production. ^ SUBSTANCE: device corresponds to flexible current conductor positioned between tubing string and casing along whole length of protected tubing. The current conductor is made without insulation out of metal or alloy possessing electrode negative potential higher, than potential of protected tubing. ^ EFFECT: raised reliability, simplified design. |
| 申请公布号 |
RU2402673(C1) |
申请公布日期 |
2010.10.27 |
| 申请号 |
RU20090133168 |
申请日期 |
2009.09.03 |
| 申请人 |
OBSHCHESTVO S OGRANICHENNOJ OTVETSTVENNOST'JU NAUCHNO-PROIZVODSTVENNOE PREDPRIJATIE "VNIKO" |
发明人 |
NADTOKA VLADIMIR IVANOVICH;NADTOKA IVAN IVANOVICH;BRESLAVETS VLADIMIR PAVLOVICH;FEDOROV VALERIJ ALEKSANDROVICH;POLJAKOV IGOR' GENRIKHOVICH |
| 分类号 |
E21B41/02 |
主分类号 |
E21B41/02 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
