发明名称 |
METHOD FOR COMPLETION OF UNCASED PART OF BORE-HOLE |
摘要 |
FIELD: oil and gas production industry. SUBSTANCE: according to method, sleeve is placed in predetermined spot and is secured in bore-hole. Then it is widened by drawing expanding mandrel through it. Sleeve has longitudinal slots which overlap each other. Used as expanding mandrel is mandrel with cone or mandrel having cylindrical body, pins deviating outside, and cone which is installed in cylindrical body and used for deviating pins outside. EFFECT: higher efficiency. 4 cl, 6 dwgn
|
申请公布号 |
RU2108448(C1) |
申请公布日期 |
1998.04.10 |
申请号 |
RU19940046374 |
申请日期 |
1993.06.08 |
申请人 |
SHELL INTERNEHSHNL RISERCH MAATSKHAPPIJ B.V. |
发明人 |
LOKHBEKK VIL'KHEL'MUS KRISTIANUS MARIJA;LOKHBEKK VIL'KHEL'MUS KRISTIANUS MARIJA |
分类号 |
E21B43/08;E21B43/10;(IPC1-7):E21B43/10 |
主分类号 |
E21B43/08 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|