Coiled tubing in extended reach wellbores
US10053926B2 · kind B2 · utility
1Cited by
7References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 2, 2015 |
| Grant date | Aug 21, 2018 |
| Priority date | — |
| Expiry date | Jul 12, 2036 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/103
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A larger diameter coiled tubing is run into an extended reach deviated wellbore to a location at or near its horizontal reach limit. The smaller diameter coiled tubing is then run through the larger diameter tubing until the end of the smaller tubing protrudes from the larger tubing. The smaller tubing is then run further into the wellbore to a location further than would have been possible if either tubing had been run alone. Supplementary reach-increasing techniques such as friction reducing vibrators and/or downhole tractors can also be used in combination with the described techniques.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.