页岩气水平井压裂用减阻剂的制备及性能评价
Preparation and Performance Evaluation of Drag Reducing Agents for Shale Gas Horizontal Well Fracturing
高飞 1李宁 2李玲 3郑国军 4曾家明 3张亮 5高月6
作者信息
- 1. 中国石油青海油田分公司采气一厂技术研究中心,青海茫崖 816400
- 2. 中国石油集团渤海钻探工程有限公司井下作业分公司,河北任丘 062552
- 3. 中国石油青海油田采油五厂,甘肃敦煌 736202
- 4. 中国石油青海油田分公司采油一厂,青海茫崖 816400
- 5. 中国石油青海油田分公司采油二厂,青海茫崖 816499
- 6. 西安石油大学,陕西西安 710065
- 折叠
摘要
在当前对页岩气资源开发的关注日益增加的背景下,通过聚丙烯酰胺(PAM)作为主要原料,辅以聚乙烯醇和磷酸盐作为助剂,室内制备出一种新型减阻剂 JZJP,专门用于页岩气水平井压裂,并对其性能和环境影响进行评价.结果表明:JZJP 在高温高压环境下保持了较高的稳定性.在耐温耐压性能测试中,JZJP在 100℃的高温下仍保持了 85分的耐压性能评分(满分 100分).在流动性能方面,JZJP在 50 MPa的高压环境下展现了 90 分的流动指数,表明其在高压环境下仍能保持良好的流动性.环境影响评价中,JZJP在生物降解性、毒性和排放方面的综合表现符合环保要求,显示了对生态系统的较小影响.综上所述,JZJP 减阻剂优异的耐温耐压性能和良好的环境适应性使其成为页岩气水平井压裂的理想选择.这项研究不仅为高效减阻剂的制备提供了新的方法,也为页岩气开采的环境友好性提供了新的思路.
Abstract
In the current context of increasing attention to the development of shale gas resources,using polyacrylamide(PAM)as the main raw material,supplemented by polyvinyl alcohol and phosphate as auxiliaries,a new drag reducing agent JZJP was prepared indoors for shale gas horizontal well fracturing,and its performance and environmental impact were evaluated.Experimental results showed that JZJP maintained high stability under high temperature and high pressure environments.In the temperature and pressure resistance performance test,JZJP still maintained a pressure resistance performance score of 85 points(out of 100 points)at a high temperature of 100℃.In terms of flow performance,JZJP exhibited a flow index of 90 points under a high pressure environment of 50 MPa,indicating that it could still maintain good fluidity under a high pressure environment.In the environmental impact assessment,JZJP's comprehensive performance in terms of biodegradability,toxicity and emissions complied with environmental protection requirements,showing a small impact on the ecosystem.In summary,the excellent temperature and pressure resistance and good environmental adaptability of JZJP drag reducing agent made it an ideal choice for shale gas horizontal well fracturing.This research not only provides a new method for the preparation of efficient drag reducing agents,but also provides new ideas for the environmental friendliness of shale gas mining.
关键词
页岩气/水平井/减阻剂/耐温耐压性能/环境影响评价Key words
Shale gas/horizontal well/Drag reducing agent/Temperature and pressure resistance/Environmental impact assessment引用本文复制引用
基金项目
国家自然科学基金青年基金项目(21705122)
出版年
2024
NETL
NSTL
万方数据