Apparatus and method of mining subterranean rubble piles
US4284306A · kind A · utility
2Cited by
7References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 16, 1979 |
| Grant date | Aug 18, 1981 |
| Priority date | — |
| Expiry date | Jul 16, 1999 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/28
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Disclosed is a method of solution mining the mineral content of a subterranean cavity containing a rubble pile positioned on the floor thereof and the subterranean cavity communicating with the surface by at least two boreholes, by drilling a liner through a cased borehole into the rubble pile, disconnecting the drill string from the liner, withdrawing the drill string from the borehole, introducing into the borehole a sealing meant to seal the annular space between the liner and the casing, introducing a solvent into the cavity and withdrawing from the cavity a solution enriched in the mineral contained in the rubble.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.