INVESTIGATION ON ASSESSMENT OF URANIUM BEARING LAYER DAMAGE AND SUITABILITY TO FIELD BLOCK FOR IN-SITU URANIUM LEACHING

The flowrate of input and output of well for in-situ uranium leaching could be reduced by stratum damage.Considering the in-situ uranium mining technology,how efficently to prevent uranium bearing layer from damage,maximally increases the well production capacity and well input ability,and carrying out investigation on assessment of stratum damage and its field block suitability is a novel project to in-situ uranium leaching.Based on classification of reservoir formation damage,and combined with an uranium deposit in-situ leaching test,the method for formation damage experiment and assessment is proposed.With the assessment of block suitability,the way to deblock is obtained and the requirement for prevent uranium bearing layer from damage is met.