Anchoring and sealing system for cased hole wells
US7909110B2 · kind B2 · utility
81Cited by
12References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 20, 2007 |
| Grant date | Mar 22, 2011 |
| Priority date | — |
| Expiry date | Dec 16, 2028 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B23/02
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An apparatus includes a casing and a sealing element that is retained in the casing. The sealing element has an unset state in which the sealing element has a first radial thickness and a set state in which the sealing element has a second radial thickness that is greater than the first radial thickness to form a seal between the casing and an inner tubular member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.