| 发明名称 |
PERFORATED PUMP PROTECTOR ASSEMBLY FOR A DOWN HOLE OIL WELL PUMP |
| 摘要 |
A pump protector for a down hole oil well pump includes a perforated tubular barrel, along with means for securing the perforated tubular barrel to a production string below a down hole oil well pump.
|
| 申请公布号 |
CA2587255(A1) |
申请公布日期 |
2008.10.11 |
| 申请号 |
CA20072587255 |
申请日期 |
2007.04.11 |
| 申请人 |
SPIRAL LIFT TOOLS LTD. |
发明人 |
WOLLMANN, ARNOLD |
| 分类号 |
E21B17/00;E21B17/04;E21B17/042;E21B17/16;E21B43/02;F04B49/10;F04D29/70 |
主分类号 |
E21B17/00 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
