Acta Petrolei Sinica ›› 2025, Vol. 46 ›› Issue (1): 279-288.DOI: 10.7623/syxb202501019

• PETROLEUM ENGINEERING • Previous Articles    

Research status and prospects of drilling fluid technology for tight oil and gas

Sun Jinsheng1,2, Yang Jingbin1, Lü Kaihe1, Bai Yingrui1, Liu Jingping1, Huang Xianbin1   

  1. 1. School of Petroleum Engineering, China University of Petroleum, Shandong Qingdao 266580, China;
    2. CNPC Engineering Technology R & D Company Limited, Beijing 102206, China
  • Received:2024-08-24 Revised:2024-10-13 Published:2025-02-15

致密油气钻井液技术研究现状与展望

孙金声1,2, 杨景斌1, 吕开河1, 白英睿1, 刘敬平1, 黄贤斌1   

  1. 1. 中国石油大学(华东)石油工程学院 山东青岛 266580;
    2. 中国石油集团工程技术研究院有限公司 北京 102206
  • 作者简介:孙金声,男,1965年1月生,2006年获西南石油大学博士学位,现为中国工程院院士、中国石油大学(华东)博士生导师、中国石油集团工程技术研究院有限公司总工程师,长期从事钻井液、防漏堵漏、井壁稳定、天然气水合物钻采理论与技术等研究工作。Email:sunjsdri@cnpc.com.cn
  • 基金资助:
    国家自然科学基金基础科学中心项目(No.52288101)和国家自然科学基金面上项目(No.52174014、No.52374023)资助。

Abstract: With the continuous growth in global energy demand, the exploration and development of tight oil and gas resources, as a crucial component of unconventional oil and gas, is increasingly gaining attention. Tight reservoirs have the characteristics of low permeability and complex pore structures, posing high demands on drilling fluid technology. This paper reviews the challenges and current research status of drilling fluid technology for tight oil and gas, elaborats on the action mechanisms and performance characteristics of water-based drilling fluids, oil-based/synthetic-based drilling fluids, and drilling fluid lost circulation prevention and plugging technologies, identifies critical issues in the current drilling fluid technology, and proposes future directions for the technology. For the water-based drilling fluid technology, attention should be paid to improving suspension and carrying capacity, enhancing borehole wall stability, and maintaining rheological stability. For the oil-based/synthetic-based drilling fluid technology, special focus should be paid on improving emulsion stability and wettability, enhancing plugging performance, and addressing issues of the resource utilization or harmless disposal of waste drilling fluids. For the drilling fluid lost circulation prevention and plugging technologies, efforts should be made to develop new materials applicable under various formation pressures and permeability conditions and improve the prediction accuracy of lost circulation location. As one of the key technologies for tight oil and gas exploration and development, the research and advancement of drilling fluid technology is critical for increasing tight oil and gas resources and ensuring national energy security.

Key words: tight oil and gas, water-based drilling fluid technology, oil-based/synthetic-based drilling fluid technology, drilling fluid lost circulation prevention and plugging technology, development prospects

摘要: 随着全球能源需求不断增长,致密油气资源作为非常规油气资源的重要组成部分,其勘探与开发日益受到重视。致密油气储层具有渗透率低、孔隙结构复杂等特点,因此对钻井液技术提出了更高要求。通过综述当前致密油气钻井液技术面临的挑战和研究现状,详细阐述了水基钻井液、油基/合成基钻井液以及钻井液防漏堵漏技术的作用机制以及性能特点,明确了目前致密油气钻井液技术存在的关键问题,进而提出未来致密油气钻井液技术的发展方向。水基钻井液技术应注重优化悬浮和携带能力,增强井壁稳定性,保持流变性稳定。油基/合成基钻井液技术应注重提高乳液稳定性和润湿性,增强封堵性能,解决废弃钻井液的资源化利用或无害化处理问题。钻井液防漏堵漏技术应注重研发能够适应不同地层压力和渗透性条件的新型防漏堵漏材料,提高漏失位置预测准确性。致密油气钻井液技术作为致密油气勘探开发的关键技术之一,其研究与发展对于提高致密油气资源量、保障国家能源安全具有重要意义。

关键词: 致密油气, 水基钻井液技术, 油基/合成基钻井液技术, 防漏堵漏技术, 发展展望

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