Conduit and continuous coiled tubing system
US5996689A · kind A · utility
27Cited by
5References
20Claims
0Family size
Inventor
Key dates
| Filing date | Oct 10, 1997 |
| Grant date | Dec 7, 1999 |
| Priority date | — |
| Expiry date | Oct 10, 2017 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L7/00
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A coil tube and conduit system for feeding into a well has the coiled tube form an annular space closed at its top and herein a relatively dense liquid while the conduit is provided with buoyancy means so that within that coiled tube the conduit can be buoyed up by the confining liquid and hence the weight of the conduit relieved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.