It is proved that the anti-collapse function of the treating chemical in fluid kerite in piedmont drilling is more and more obvious, and the application is more and more widely.

沥青类处理剂在山前钻井中的防塌作重要,应广,但由质沥青成分的复杂性及由各种改性手段的应,使沥青类处理剂的室内评价指标与现场应效果难以统一。