Because of the characteristics of low consolidation degree， fracture， waterbearing， deformation and dissolution； according to the difficult coring， serious diameter reducing， borehole wall unconsolidation， interlayer high confined brine and natural gas in resources and environmental scientific drilling in Chaidamu Basin， it is important to improve coring efficiency and protect borehole wall. The special designed watersealing single action triple pipe coring tools and traditional pipe coring technology were adopted， and petroleum drilling technology and equipment， such as pressure grouting for blowout， were learnt to ensure the construction and experiment requirements of environmental scientific drilling.