| 发明名称 |
Using mines and tunnels for treating subsurface hydrocarbon containing formations |
| 摘要 |
A method for forming a subsurface wellbore is disclosed. The method includes operating a drilling string in a first direction of rotation. A first motor located near the end of the drilling string is operated in a direction of rotation opposite that of the drilling string. A drill bit is rotated using a second motor that is coupled to the first motor. |
| 申请公布号 |
AU2009251533(A1) |
申请公布日期 |
2009.12.03 |
| 申请号 |
AU20090251533 |
申请日期 |
2009.04.10 |
| 申请人 |
SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V. |
发明人 |
DUNCAN CHARLES MCDONALD;ROBERT GEORGE PRINCE-WRIGHT;DAVID BOOTH BURNS;HORNG JYE HWANG;JOCHEN MARWEDE |
| 分类号 |
E21B43/00 |
主分类号 |
E21B43/00 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
