Solution mining of an inclined structure
US4411474A · kind A · utility
16Cited by
5References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 20, 1981 |
| Grant date | Oct 25, 1983 |
| Priority date | — |
| Expiry date | May 20, 2001 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/28
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Solution mining method particularly adapted for recovery of potash and the like from relatively thin, inclined strata at substantial depths and involving the dissolution of ore strata, overlain by insoluble strata, while leaving the remainder of the formation in place. Water is injected down a bore hole at a predetermined rate and, being much less dense than present brine, flows in an updip direction along the top of the cavity to a forward mining face remote from the drill hole. Loaded, heavy brine flows downdip along the bottom of the stratum to an outflow pipe communicating with the bottom of the bore hole.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.