发明名称 |
Methods for constructing underground borehole configurations and related solution mining methods |
摘要 |
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 a pregnant solution. Also disclosed are methods of solution mining that include injecting an aqueous solution into an underground trona cavity at a temperature sufficient to maintain at least a portion of the solution in the cavity in the Wegscheiderite solid phase region; removing aqueous solution from the cavity; and recovering alkaline values from the removed aqueous solution. Also disclosed are methods of solution mining that include injecting an aqueous solution into an underground trona cavity; removing aqueous solution from the cavity, wherein the temperature of the removed aqueous solution is at about the TWA point temperature; and recovering alkaline values from the removed aqueous solution. |
申请公布号 |
US8057765(B2) |
申请公布日期 |
2011.11.15 |
申请号 |
US20090566446 |
申请日期 |
2009.09.24 |
申请人 |
DAY ROGER L.;HERICKHOFF JAMES A.;SESQUI MINING, LLC |
发明人 |
DAY ROGER L.;HERICKHOFF JAMES A. |
分类号 |
C01D7/00 |
主分类号 |
C01D7/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|