七十年代以来，由于国内外深孔岩心钻探工作量逐年增加，增长了地质岩心钻探部门对定向钻进的兴趣，因而定向钻进的应用范围和工作量日益扩大，定向钻进技术有了一定的发展。目前，定向钻进已是苏联等国岩心钻探研究和推广的重要新技术项目之一。近几年来，我国对岩心钻探定向钻进技术的研究和试验也给于了足够的重视。 Since the 1970s, due to the increasing workload of deep-hole core drilling at home and abroad, the interest in directional drilling in geological core drilling has been increased. As a result, the application scope and workload of directional drilling have been increasing day by day. development of. At present, directional drilling is one of the important new technology projects for core drilling research and promotion in countries such as the Soviet Union. In recent years, our country has also given enough attention to the research and test of directional drilling technology of core drilling.