Inflatable tubular sleeve for tubing or obturating a well or pipe
US6044906A · kind A · utility
150Cited by
8References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 4, 1998 |
| Grant date | Apr 4, 2000 |
| Priority date | — |
| Expiry date | Jun 4, 2018 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L55/134
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A radially deformable inflatable tubular sleeve for tubing or obturating a well (P) or a pipe. The sleeve includes a tube and a series of breakable restraining rings positioned along the tube. The rings are arranged so that each ring breaks one after the other in the longitudinal direction of the sleeve when the tube is inflated by an internal fluid under pressure. As a ring breaks, liquid (B) present in the well is moved progressively forward so as to prevent pockets forming on the outside of the tubing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.