Method for designing and constructing a well with enhanced durability
US7490668B2 · kind B2 · utility
3Cited by
26References
45Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 5, 2004 |
| Grant date | Feb 17, 2009 |
| Priority date | — |
| Expiry date | Jul 22, 2025 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B33/14
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Methods for performing cementing operations in a wellbore, designing wells and constructing wells are illustrated. The methods include applying pressure to the interior of casing in the wellbore during curing of a cement composition in the annulus. Wells constructed with such an applied pressure on casing have cement sheaths that will subsequently withstand stress.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.