Pressure-activated valve for hybrid coiled tubing jointed tubing tool string
US8276676B2 · kind B2 · utility
4Cited by
19References
28Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 26, 2010 |
| Grant date | Oct 2, 2012 |
| Priority date | — |
| Expiry date | Oct 24, 2030 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B2200/05
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Embodiments of the hybrid tool string include coiled tubing and jointed tubing, as well as a means typically located at the connection of the coiled and jointed tubing for sealing the fluid flowpath through the bore of the hybrid tool string. Embodiments of the hybrid tool string may use a pressure-activated valve tool attached in series between the coiled tubing and the jointed tubing, which allows for sealing of the bore by application of pressure. Embodiments of the pressure-activated valve tool may use a flapper in conjunction with a sleeve to seal the bore. The novel hybrid tool string may be used to service a well.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.