Coiled tubing wellbore cleanout
US7377283B2 · kind B2 · utility
9Cited by
31References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 21, 2005 |
| Grant date | May 27, 2008 |
| Priority date | — |
| Expiry date | Feb 11, 2026 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B41/0078
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method and apparatus for substantially cleaning fill from a borehole is described variously including running a coiled tubing assembly into the wellbore, creating a fluid vortex by circulating cleaning fluid through the coiled tubing, and pulling the coiled tubing and coiled tubing assembly out of the hole at a speed sufficient to substantially clean the particulate solids from the wellbore. An apparatus for substantially cleaning fill from a hole, including vertical, horizontal, or deviated wells also is provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.