Pressurized flexible conduit injection system
US6006839A · kind A · utility
19Cited by
9References
38Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 2, 1996 |
| Grant date | Dec 28, 1999 |
| Priority date | — |
| Expiry date | Oct 2, 2016 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B19/22
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A guide system for injecting continuous conduit or tubing into a well under pressure including a closed pressurized chamber for equalizing the interior and exterior pressure on the conduit in the area where the conduit is under maximum stress due to bending or flexing. The chamber may be installed on a standard wellhead or injection head. Low friction guide sleeves are provided as a bearing surface for the conduit in the pressurized chamber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.