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本文根据非牛顿流,两相管流理论,研究了偏心环空中水泥浆顶替泥浆的一维两相流动问题;分析了影响偏心环空注水泥顶替效率的因素;提出了如何提高顶替效率的措施和计算适宜的顶替压力降的方法。
Based on the theory of non-Newtonian flow and two-phase flow, the one-dimensional and two-phase flow problems of slurry replacing slurry in eccentric annulus are studied. The factors influencing displacement efficiency of eccentric annulus cement are analyzed and the measures to improve displacement efficiency are proposed And the method of calculating the appropriate displacement pressure drop.