纳米材料提高水基钻井液页岩稳定性研究进展
Research progress on improving shale stability of water-based drilling fluid by nano-materials
孙金声 1李贺 2吕开河 2黄贤斌 2杨峥3
作者信息
- 1. 中国石油大学(华东)石油工程学院,山东青岛 266580;中国石油集团工程技术研究院有限公司,北京 102200
- 2. 中国石油大学(华东)石油工程学院,山东青岛 266580
- 3. 中国石油集团工程技术研究院有限公司,北京 102200
- 折叠
摘要
维持井壁稳定一直是油气钻探过程中的技术难题.由于页岩微纳米孔缝与层理发育、水敏性高,井壁失稳问题在页岩层尤为突出.提高钻井液的性能是减少井壁失稳的重要途径.纳米材料因其独特的尺度和性质,可作为水基钻井液添加剂以提高页岩的稳定性.通过对国内外技术的跟踪与分析,阐述纳米材料提高页岩稳定性的评价方法、纳米材料类型及其作用机制.开展纳米材料在非均质地层的基础理论研究,开发在高温高压及高盐环境下稳定有效的新型纳米材料,建立纳米材料提高页岩稳定性的微观评价方法,是纳米材料的重要发展方向.
Abstract
Maintaining wellbore stability has always been a technical challenge in oil and gas well drilling,which is particu-larly prominent in shale formations due to their micro and nano pores and laminae and high-water sensitivity.Improving the performance of drilling fluids is an important way to reduce wellbore instability.Nano-materials can be used as additives in water-based drilling fluids to enhance the stability of shale due to their unique particle size and properties.In this paper,the technical development of using nano-materials to enhance wellbore stability was reviewed,including the evaluation methods for shale stabilization,the types of nano-materials that can be used and their action mechanisms.It is important to conduct basic and theoretical research for nano-materials to be used in heterogeneous shale formation,develop new type of nano-mate-rials that is stable and effective under high temperature,high pressure and high salt conditions,and establish microscopic methods for shale stabilization evaluation.
关键词
纳米材料/页岩/井壁稳定/水基钻井液Key words
nano-materials/shale/wellbore stability/water-based drilling fluids引用本文复制引用
基金项目
国家自然科学基金基础科学中心项目(52288101)
山东省重点研发计划院士团队支持项目(2020ZLYS07)
出版年
2024
国家科技期刊平台
NSTL
维普
万方数据