多介质反循环复合钻探技术的研究及开发应用

R&D of Multi-medium Reverse Circulation Drilling Technique

分析了多介质反循环复合钻探技术的特点及技术参数,介绍了该项技术器具试制、试验研究及生产应用过程、取得的应用效果等。试验证明,该项钻探技术具有钻探效率高、地质效果好、判层及时等一系列优点。该项技术的研制成功为加速我国地质找矿提供了又一项高效钻探技术,并展示了良好的应用前景。

The technical characteristics and parameters of multimedium reverse circulation (RC) drilling techniques are analyzed. The trialmanufacture, testresearch, application and effects also are introduced. Testing proved that RC drilling has the advantages of higher drilling efficiency, better geological effects and distinguishing formations in time. The success of the RC drilling technique will provide a new drilling method for geological prospecting and have potential application market in China.