发明名称 |
METHOD FOR PIPELINE DRAWING THROUGH HORIZONTAL WELL UNDER WATER AND OTHER NATURAL OBSTACLES |
摘要 |
FIELD: construction, particularly dredgers or soil-shifting machines for horizontal holes digging-out, namely for delivery main crossing construction. ^ SUBSTANCE: method involves alternately drawing two protective cases in previously drilled and reamed hole with the use of drilling rig; covering highly-abrasive rock at hole inlet and outlet with the cases by means of stop collars, safety-guiding collars and special removable plugs. ^ EFFECT: prevention of isolation pipeline coating damage during pipeline drawing through hole having pebble or other hard material in surrounding rock at hole inlet and outlet. ^ 3 dwg |
申请公布号 |
RU2323304(C2) |
申请公布日期 |
2008.04.27 |
申请号 |
RU20050137758 |
申请日期 |
2005.12.05 |
申请人 |
OBSHCHESTVO S OGRANICHENNOJ OTVETSTVENNOST'JU "KUBAN'GAZPROM" |
发明人 |
BAKANOV JURIJ IVANOVICH;SUSLIKOV SERGEJ PETROVICH;GERAS'KIN VADIM GEORGIEVICH;SHABROV SERGEJ NIKOLAEVICH;KUCHERENKO SERGEJ ANATOL'EVICH;KOBELEVA NADEZHDA IVANOVNA;VASIL'EV MAKSIM IGOREVICH |
分类号 |
E02F5/18 |
主分类号 |
E02F5/18 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|