Analysis of the Weight Loss of High Temperature Cement Slurry  

作　　者：Kunhong Lv Zhiqiang Huang Xingjie Ling Xueqin Xia 

机构地区：[1]College of Petroleum Engineering,Yangtze University,Wuhan,430199,China

出　　处：《Fluid Dynamics & Materials Processing》2022年第5期1307-1318,共12页流体力学与材料加工（英文）

基　　金：The authors gratefully acknowledge the research project from“Research and test on optimization of calculation model for cementing engineering of high temperature and high pressure wells”(Grant No.CQCJ-2020-06).

摘　　要：The weight loss of cement slurry is the main cause of early annular air channeling and accurate experimental evaluation of the law of loss change is the key to achieve compression stability and prevent this undesired phenomenon.Typically,tests on the pressure loss of cement slurry are carried out for temperature smaller than 120°C,and this condition cannot simulate effectively the situation occurring in high temperature wells.For this reason,in this study a series of experimental tests have been conducted considering a larger range of temperatures,different retarders and fluid loss additives.The results show that with an increase in the temperature,the weight loss curve of cement slurry changes from a“two-stage”to a“three-stage”behavior,and the risk of channeling increases accordingly.On increasing the amount of retarder and fluid loss additive,the transition time of cement slurry displays a non-monotonic behavior(it decreases first and then increases).It is found that the optimized retarder and fluid loss additive dosage are 0.2%and 2.5%,respectively.

关 键 词：CEMENTING weight loss test weight loss law cement slurry EVALUATION anti-gas channeling 

分 类 号：TG1[金属学及工艺—金属学]