Remedial heap treatment

E - Fixed Constructions – 21 – B

Patent

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Details

E21B 43/28 (2006.01)

Patent

CA 2558324

A system and method are disclosed for improving component extraction from heap leach operations. Following heap leaching for some time, portions of the heap deficient in component extraction are identified, and treatment wells are drilled and remedial treatments are selectively performed on the identified portions of the heap. The remedial treatment can include hydraulically fracturing the identified portions of the heap followed by selective treatment with leach solution of the area impacted by the fracturing.

La présente invention concerne un système et un procédé pour améliorer l'extraction de composants dans des opérations de lixiviation en tas. Après un certain temps de lixiviation en tas, des parties du tas déficitaires dans l'extraction de composants sont identifiées, puis des puits de traitement sont forés et des traitements correcteurs sont sélectivement appliqués aux parties de tas identifiées. Le traitement correcteur peut comprendre la fracturation hydraulique des parties identifiées du tas, suivie d'un traitement sélectif avec une solution de lixiviation de la zone touchée par la fracturation.

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