well injection method

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A method of solution mining in which boreholes are used to transport a solvent (usually water) to the working face. The mineral is extracted and the resultant solution lifted to the surface either through an adjacent borehole or an annulus formed by equipping the borehole with concentric casings. The pumping mechanism may be located at the surface or in the borehole. The method is used extensively in halite mining.

Subjects: Earth Sciences and Geography.

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