Multiple-bed solution mining of an inclined structure
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United States of America Patent
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-
Dec 6, 1983
Grant Date -
N/A
app pub date -
Nov 4, 1981
filing date -
Nov 4, 1981
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Solution mining method particularly adapted for recovery of potash and the like from multiple beds of relatively thin, inclined strata at substantial depths. Dissolution of each ore strata overlain by an insoluble and impermeable strata takes place through a single borehole in sequential order beginning with the deepest ore strata. Water is injected down a borehole at a predetermined rate and, being much less dense than present brine, flows in an updip direction along the top of the cavity to the forward mining face remote from the drill hole. Loaded, heavy brine flows downdip along the bottom of the cavity to an outflow pipe communicating with the bottom of the cavity.
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