kerite

1.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.

沥青类处在山前钻井中防塌作来重要,来广泛,但由于其基质沥青成分复杂及由于各种改手段,使沥青类处室内评价指标与现场效果来难以统一。