提高粉煤灰低密度水泥浆体系低温性能的研究  

Research of How to Improve Fly Ash Low Density Slurry Property in Low Temperature

作　　者：田野[1] 代丹[1] 方国伟[1] 王雪山[1] 张福铭[1] 

机构地区：[1]中海油田服务股份有限公司油田化学研究院,三河065201

出　　处：《科学技术与工程》2013年第21期6235-6238,共4页Science Technology and Engineering

摘　　要：目前漂珠低密度水泥浆体系成本愈加昂贵,研究应用替代产品是固井技术的发展方向。研究应用粉煤灰低密度水泥浆体系,开发出适用于低温低密度体系的增强剂PC-A70S中实验结果表明,增强剂PC-A70S、微硅与硫酸盐的加入,可以有效改善粉煤灰低温条件下的化学活性,促进粉煤灰体系早期强度的发展。粉煤灰低密度水泥浆体系能够满足复杂固井作业的要求,具有性能优良、成本低廉的特点。At present the floating bead low density slurry has a high cost,so it is necessary to develop the substitute product of floating bead.The fly ash low density slurry is studied,and the enhancer PC-A70S used for low temperature and low density slurry is found out to enhance early strength of fly ash slurry.The result of the test shows that,PC-A70S,micro silicon and sulfate could improve the chemical activity of fly ash in low temperature and the early strength of fly ash slurry.Fly ash low density slurry which has good property and low cost,could reach the requirements of the complex cementing operation.

关 键 词：低密度 粉煤灰 低温 增强剂 低成本 

分 类 号：TE256.7[石油与天然气工程—油气井工程]