| 发明名称 |
Coiled tubing tractor with rearward facing jets |
| 摘要 |
A wellbore tractor assembly 10 comprises a one or more rearward facing jets 35 extending through the tractor body 30. The tractor may also comprise a forward jetting assembly 20 to fluidise sand beds ahead of the tractor. The rearward facing jets are operable to maintain the sand in fluid suspension until the sand travels past the tractor. Also disclosed is a method for moving a coiled tubing tractor through a wellbore. |
| 申请公布号 |
GB2434819(A) |
申请公布日期 |
2007.08.08 |
| 申请号 |
GB20070008856 |
申请日期 |
2005.03.31 |
| 申请人 |
BJ SERVICES COMPANY |
发明人 |
JOHN GORDON MISSELBROOK |
| 分类号 |
E21B37/00;E21B4/00;E21B4/18;E21B17/20;E21B19/22;E21B21/00;E21B21/12;E21B23/00;E21B23/04;E21B23/08;E21B23/10;E21B23/14;E21B33/13;E21B41/00;E21B43/12;E21B43/26 |
主分类号 |
E21B37/00 |
| 代理机构 |
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代理人 |
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