Method of explosive fracturing of a formation at depth
US3951458A · kind A · utility
5Cited by
4References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 31, 1974 |
| Grant date | Apr 20, 1976 |
| Priority date | — |
| Expiry date | Jul 31, 1994 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/263
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
This invention pertains to recovery of metal values from ore deposits found at great depth; more specifically, the invention pertains to the recovery of metal values from an ore deposit by explosive fracturing of the ore formation at a depth at which the deposit is economically inaccessible by surface mining. Still further, this invention pertains to a method for explosive fracturing of a formation containing metal values at depth whereby hydraulically assisted fracturing is used to propagate an explosive shock wave so as to obtain a more desirable medium in which metal value recovery can be practiced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.