Safeguarded method and apparatus for fluid communiction using coiled tubing, with application to drill stem testing
US5638904A · kind A · utility
90Cited by
22References
46Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 19, 1996 |
| Grant date | Jun 17, 1997 |
| Priority date | — |
| Expiry date | Mar 19, 2016 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B49/087
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A safeguarded method and apparatus for providing fluid communication with coiled tubing, said coiled tubing comprising more particularly coiled-in-coiled tubing, having a inner tube and an outer tube, and including multicentric coiled-in-coiled tubing and its method of assembly, the safeguarded method having particular applicability to drill stem testing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.