一种油井水泥用抗分散絮凝剂

王建瑶; 曾建国; 孙富全; 魏周胜; 席方柱

doi:10.3969/j.issn.1001-5620.2018.05.017

一种油井水泥用抗分散絮凝剂

doi: 10.3969/j.issn.1001-5620.2018.05.017

王建瑶^1,2,3,
曾建国^1,2,3,
孙富全^1,2,3,
魏周胜⁴,
席方柱^1,2,3

1. 天津中油渤星工程科技有限公司, 天津 300451;
2. 中国石油集团钻井工程重点实验室固井技术研究室, 天津 300451;
3. 油气钻井技术国家工程实验室固井技术研究室, 天津 300451;
4. 川庆钻探长庆固井公司, 西安 710000

基金项目:

中国石油天然气集团公司课题“天然气水合物富集规律、目标优选及开发技术”（2016B-4901）。

详细信息

作者简介:
王建瑶,博士,1984年生,现在主要从事油井水泥外加剂的研发及技术服务工作。电话(022)66310216;E-mail:wjy.cpoe@cnpc.com.cn。

中图分类号: TE256.6
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出版历程
- 收稿日期: 2018-07-05
- 刊出日期: 2018-09-30

A Dispersion Resistant Flocculant used in Oil Well Cement Slurry

WANG Jianyao^1,2,3,
ZENG Jianguo^1,2,3,
SUN Fuquan^1,2,3,
WEI Zhousheng⁴,
XI Fangzhu^1,2,3

1. CPOE Boxing Engineering Technology Co., Ltd., Tianjin 300451;
2. Department of Well Cementing Technology, CNPC Key Laboratory of Drilling Engineering, Tianjin 300451;
3. Department of Well Cementing Technology, National Engineering Laboratory of Petroleum Drilling Technology, Tianjin 300451;
4. CCDC ChangQing Well Cementing Company, Xi'an, 710000

摘要

摘要: 国内油田注水区块频发的水侵，严重地破坏了水泥石强度和胶结质量。针对该问题，采用自由基聚合的方式合成出一种适用于油井水泥的抗分散絮凝剂BCY-100S。通过Zeta电位分析和热重分析测定了BCY-100S的絮凝性和耐热性，并评价了其对水泥浆抗水侵性能的作用和稠化性能。结果表明，BCY-100S耐温可达324℃，加入BCY-100S的水泥浆具备一定絮凝性，能够在80℃下，受到水的冲刷作用而不离析、不分散，与未加入BCY-100S的普通水泥浆相比，具有显著的抗水冲刷性能。除此之外，抗分散絮凝剂BCY-100S对稠化时间无影响，符合油井水泥性能要求。为各油田解决地层流体对水泥浆“溶解迁移”和“质量互换”的问题提供了一种新的方法。
- 抗分散性能 /
- 絮凝剂 /
- 固井 /
- 稠化性能
Abstract: Frequent water invasion in water injection blocks in China gravely undermine the strength and bonding quality of set cement. A dispersion resistant flocculant BCY-100S has been developed to deal with these problems. BCY-100S is produced through radical polymerization and is used in preparing cement slurries for oil well cementing. The flocculating capacity and heat resistance of BCY- 100S were measured through zeta-potential analysis and TGA. The effects of BCY-100S on the performance of cement slurry to resist water invasion and on the thickening property of cement slurry were tested. It was found that BCY-100S functions normally at temperatures up to 324℃. Cement slurries treated with BCY-100S have to some flocculating ability. The BCY-100S treated cement slurries did not disperse or segregate when flushed with water at 80℃. Compared with cement slurries that were not treated with BCY- 100S, the cement slurries treated with BCY-100S were able to resist water flooding. BCY-100S does not affect the thickening time of cement slurry, which is a requirement of oil well cement property. Considering the effects of formation fluids on set cement, such as "migration after dissolution" and "mass interchange", the use of BCY-100S has provided a new method of resolving these problems.
- Well cementing /
- Dispersion resistance /
- Flocculant /
- Thickening property

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参考文献(8)

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