我们所勘探的矿区,二长岩与灰岩风化和蚀变很深.在正常钻进中,冲洗液(黄泥浆和煤碱剂泥浆)轻几次循环后,粘度增高,这时从钻桿中投给钻粒经常堵水.严重时,常需提升钻具检查处理.即使在正常投入,如井深达400公尺投给三公斤钻粒亦需5～10分钟,大大增加了辅助作业时间.为此,我队小寺沟分队 The mines we are exploring, the monzogranite and the limestone, are heavily weathered and altered deeply, and in normal drilling, the viscosity of the rinsing fluid (yellow mud and coal-base-agent mud) is slightly increased after a few cycles, In the cast to drill often blocking the water.In severe cases, often need to enhance the drilling tool inspection.Even in the normal input, such as well depth of 400 meters to cast three kilograms of diamond particles also need 5 to 10 minutes, greatly increasing the auxiliary work time To this end, my team Xiao Temple ditch detachment