【摘要】 触变性水泥是一种适用于破裂压力梯度较低的松散地层、漏失层及挤水泥等注水泥作业的水泥浆体系 ,它对防止水泥浆凝固过程的气窜问题同样具有一定效果。文章重点对触变性水泥浆的测量和评价方法进行了全面分析和深入的讨论 ,提出的水泥浆触变性有关模型同样适用于其它非胶凝性宾厄姆流体、幂律流体的触变性评定。文章还对触变性水泥浆的特点、用途、常规配方及国内外应用情况进行了较深入的介绍更多还原

【Abstract】 Thixotropic cement is a cement slurry system used for cementing operation suited to the loose formation with small fracture pressure gradient and thief zone and it has a certain effectiveness in preventing the breakthrough of gas in the setting process of cement slurry. The measurement and evaluation methods for thixotropic cement slurry are emphatically and overall analyzed and discussed in this paper and the raised model related to the thixotropy of cement slurry is also suitable for the thixotropy evaluation of other Bingham fluid and power law fluid with non gelling property. The characteristics, use and formula of the thixotropic cement slurry and its application situation at home and abroad are thoroughly introduced also in this paper.更多还原