发明名称 |
BAILER FOR INSTALLING SEPARATING BRIDGES IN WELL |
摘要 |
FIELD: oil and gas production industry. SUBSTANCE: bailer can be used for installing separating bridges so as to isolate productive horizons and sections of well from each other. Bailer has body, sealing member, tie-rod, and shear pin. Bailer is provided with slip sockets having wedge-like pushers located inside space of body. Tie-rod is made in the form of bar which is stepped along cross-section. Parts of bar with different cross-sections can interact with wedge-like pushers. Sealing member is made in the form of tapered pusher with elastic collar. Tapered pusher can interact with tie-rod by means of shear pin. Application of aforesaid embodiment of bailer improves safety of operations performed in well, reduces cost of isolating well hole by means of cement plug due to low expenses of performing needed operations. EFFECT: higher efficiency. 1 dwg
|
申请公布号 |
RU2137898(C1) |
申请公布日期 |
1999.09.20 |
申请号 |
RU19980100150 |
申请日期 |
1998.01.08 |
申请人 |
HNO-ISSLEDOVATEL'SKIJ I PROEKTNYJ INSTITUT NEFTI;AKTSIONERNOE OBSHCHESTVO TATNE |
发明人 |
ISHKAEV R.K.;GABDULLIN R.G.;STRAKHOV D.V.;OSNOS V.B. |
分类号 |
E21B27/02;(IPC1-7):E21B27/02 |
主分类号 |
E21B27/02 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|