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触变水泥是一种适用于油气井固井挤水泥、防止气窜和堵漏作业的特种水泥，对解决我国气井固井作业中普遍存在的水泥浆上返和环空气窜等问题有较好的应用前景。文章在调研国外大量资料的前提下，对触变水泥的设计原理、化学配方、评价方法及现场应用情况做了系统的评。还指出了我国发展触变水泥的研究方向：研制适用国产水泥的触变剂和探索一套切实可行的评价触变性的方法。

RESEARCH ON THIXOTROPIC CEMENT AND ITS APPLICATION

Thixotropic cement is a kind of cement squeeze and a special cement system appl led to channeling Prevention and loss circulation control in oil-gas fields. It has a better application prospects to solving the problems of cement slurry up flow and annular space gas channeling generally existing in well cementing operation in Chinal S oilgas fields. Based on isvestignting a lot of daal at home and abroad,the design Principle,chemical ingredients.evaluation method and field applied conditions are systematically expounded. That the research direction of developing China's thixotropic cement is to develop the thixotropic aunts being suitable to the cement made in China and to probe a set of feasible methods of evaluating thixotropy is pointed out.