Methods of sealing pipe strings in disposal wells
US6321841A · kind A · utility
101Cited by
108References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 21, 2001 |
| Grant date | Nov 27, 2001 |
| Priority date | — |
| Expiry date | Feb 21, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S166/902
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Improved methods of completing wells penetrating subterranean corrosive fluid disposal zones are provided. The methods basically comprise the steps of preparing a pumpable, water compatible, corrosion resistant, hardenable epoxy sealing composition comprised of a hardenable epoxide containing liquid and a hardening agent, placing the epoxy sealing composition in the annulus between a string of pipe and a well bore penetrating a disposal zone and allowing the epoxy sealing composition to harden.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.