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

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.