High temperature packer element for well bores
US4281840A · kind A · utility
27Cited by
10References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 28, 1980 |
| Grant date | Aug 4, 1981 |
| Priority date | — |
| Expiry date | Apr 28, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S277/946
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
This invention relates to packer element design for use in high temperature well bores. Packing material of asbestos fibers impregnated with a thermoplastic and interwoven with Inconel wire is employed in a center packer ring of triangular cross-section disposed between two facing series of frusto-conically shaped packer rings, which are backed by expandable metal packer shoes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.