Remedial well bore sealing methods
US5969006A · kind A · utility
110Cited by
46References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 20, 1998 |
| Grant date | Oct 19, 1999 |
| Priority date | — |
| Expiry date | Feb 20, 2018 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B33/138
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to improved methods of sealing openings in a well bore penetrating a subterranean zone into which fluids contained in the well bore are lost or from which fluids undesirably flow into the well bore. The methods basically comprise the steps of preparing a hardenable epoxy sealing composition comprising an epoxide containing liquid and a hardening agent, placing the epoxy sealing composition by way of the well bore into the openings and into the subterranean zone and allowing the epoxy composition to harden whereby the well bore is sealed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.