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| Number | Title | Issue Date |
| 8057765 | Methods for constructing underground borehole configurations and related solution mining methods Disclosed are methods for solution mining of evaporite minerals, such as trona, comprising drilling an access well and at least two lateral boreholes; injecting a fluid; circulating the fluid through the lateral boreholes with a controlled fluid flow; and collecting... | 11/15/2011 |
| 7611208 | Methods for constructing underground borehole configurations and related solution mining methods Disclosed are methods for solution mining of evaporite minerals, such as trona, comprising drilling an access well and at least two lateral boreholes; injecting a fluid; circulating the fluid through the lateral boreholes with a controlled fluid flow; and collecting... | 11/03/2009 |
