Apparatus to allow a coiled tubing tractor to traverse a horizontal wellbore
US7273108B2 · kind B2 · utility
62Cited by
12References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 30, 2004 |
| Grant date | Sep 25, 2007 |
| Priority date | — |
| Expiry date | Nov 10, 2025 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B23/001
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Apparatus and methods are provided for removing sand and/or other fill material located in a wellbore ahead of a coiled tubing tractor and displacing the material behind the tractor. More particularly, the apparatus and methods of the present invention allow a coiled tubing tractor to drive forward in a wellbore by removing fill material in front of the tractor thereby allowing the wheels or traction pads of the tractor to remain in contact with the wellbore.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.