触变性水泥的评价方法及其应用  

EVALUATION METHOD OF THIXOTROPIC CEMENT AND ITS APPLICATION

作　　者：刘崇建[1] 刘孝良[1] 

机构地区：[1]西南石油学院

出　　处：《天然气工业》2001年第2期56-60,共5页Natural Gas Industry

基　　金：中国-石-油天然气总公司"八五"重点科技攻关项目!(94008)

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。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 powerlaw 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.

关 键 词：油气井 固井 注水泥 触变性水泥 评价方法 

分 类 号：TE256[石油与天然气工程—油气井工程]