| 发明名称 |
Method and apparatus for cleaning boreholes |
| 摘要 |
A method of cleaning a casing-lined borehole comprises the steps of: circulating fluid in the borehole to entrain material in the circulating fluid; separating the entrained material from the fluid within the borehole; and then removing the separated material from the borehole.
|
| 申请公布号 |
US6695058(B1) |
申请公布日期 |
2004.02.24 |
| 申请号 |
US20020958012 |
申请日期 |
2002.01.07 |
| 申请人 |
QUARTECH ENGINEERING LIMITED |
发明人 |
FRENCH CLIVE |
| 分类号 |
E21B21/00;E21B27/04;E21B37/02;(IPC1-7):E21B37/02 |
主分类号 |
E21B21/00 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
