空气反循环钻进工艺在地勘浅层取样中的应用探讨

Discussion on Application of Air Reverse Circulation Drilling in Shallow Sampling for Geological Prospecting

摘要:

空气反循环钻进工艺具有钻进速度快、施工环保等特点，是地质勘探取样又一重要方法手段。通过浅层取样生产试验，探讨了施工设备材料、钻进参数的选择依据，指出了施工中应重点把握的技术措施，列举了施工中常见的问题，研究提出了解决办法，总结了工艺特点等。

Abstract:

With the characteristics of rapid drilling and environmental protection, air reverse circulation drilling is an important technical method for geological prospecting. Based on the shallow sampling tests, the paper discusses the selection basis of construction equipments and drilling parameters, presents the key technical measures and lists the common problems in drilling operation. The resolving methods are put forward and the technology characteristics are summarized.