发明名称 |
DEVICE FOR RESERVOIR FLUID REMOVAL FROM GAS WELL |
摘要 |
FIELD: oil and gas industry.SUBSTANCE: device for reservoir fluid removal from a gas well is related to equipment designed for operation of gas wells and intended for removal of reservoir fluid from gas wells. The concept of the invention is as follows: the device consists of a liner-packer combination at which lower end there is a telescopic tube with perforated partition at the lower cone; the tube has positive buoyancy. In the liner axial channel there is a ring piston with a row of radial openings, and in gaps between these openings there is a row of longitudinal openings. The ring piston is fixed rigidly to a hollow rod equipped with a cross-over shoe with an inner bore in the upper part and an extension nipple in the lower part. The hollow rod has a row of perforated openings connected hydraulically to radial openings in the ring piston. The extension nipple has a tapered face and a hollow float in which axial channel there is a perforated partition with a pilot pin equipped with a ball valve installed so that it can interact with the tapered face of the extension nipple.EFFECT: improving operating reliability of the device.3 dwg |
申请公布号 |
RU2516313(C2) |
申请公布日期 |
2014.05.20 |
申请号 |
RU20120112751 |
申请日期 |
2012.04.02 |
申请人 |
OBSHCHESTVO S OGRANICHENNOJ OTVETSTVENNOST'JU "GAZPROM DOBYCHA NADYM" (OOO "GAZPROM DOBYCHA NADYM") |
发明人 |
MEN'SHIKOV SERGEJ NIKOLAEVICH;MOROZOV IGOR' SERGEEVICH;VARJAGOV SERGEJ ANATOL'EVICH;MEL'NIKOV IGOR' VASIL'EVICH;MOISEEV VIKTOR VLADIMIROVICH;VELICHKIN ANDREJ VLADIMIROVICH;MASHKOV VIKTOR ALEKSEEVICH;ODINTSOV DMITRIJ NIKOLAEVICH |
分类号 |
E21B43/12 |
主分类号 |
E21B43/12 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|