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防塌来重要,应来广,但由于其基质沥青成分性及由于各种改性手段应,使沥青类处理剂室内评价指标与现场应效果来难以统一。