Optimization of Geological Drilling Technology for Uranium Mine in Lianshanguan Area
Due to the complex formation,loose rock cement,strong water sensitivity and many other unfavorable factors in Lianshanguan area,there are some problems in drilling,such as hole leakage,block sticking and collapsing buried drilling,which lead to the abandonment of boreholes and reduce the econom-ic benefits of geological drilling in uranium mine.In order to solve the above problems,taking ZK93-1 hole drill as the object,aiming at the geological formation characteristics of uranium mine and the adverse factors existing in common equipment and mud,the drilling equipment was optimized.CSD-1800A full hydraulic power head drill,HQ rope coring drill,and NQ rope coring drill equipped with upsetting drill pipe were se-lected to improve drilling efficiency and safety and it also reduces the labor intensity.The use of film forming anti-collapsing and no solid phase washing liquid can effectively reduce the inclination of the drilling hole,ensure the rock core recovery rate,reduce the construction cost,and provide a reference for the drilling work in similar geological conditions.
geological drilling for uranium minescomplex formationdrilling accidentsfilm forming anti-collapsing and no solid phase washing liquid
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