乾安地区自从实施定向井开始,发生了很多次井漏和井壁坍塌事故,给国家财产和人民安全造成了严重的危害。这些事故的发生也严重阻碍了地区经济的发展和建设,随着各种钻井技术的不断发展和应用,通过对地层坍塌机理进行分析和研究,从而进一步提高钻井技术。 Since the implementation of the directional well in the dry area, a lot of well leakage and collapse of the well wall have occurred, causing serious damage to the state property and people’s safety. The occurrence of these accidents has also seriously hindered the development and construction of regional economy. With the continuous development and application of various drilling technologies, the drilling technology has been further improved through the analysis and research on the mechanism of formation collapse.