陆相页岩油开发实验技术现状与展望
作者:
作者单位:

作者简介:

孙志刚(1974—),男,山东莒县人,研究员,硕士,从事油层物理、渗流机理和提高采收率基础理论研究工作。E-mail:sunzhigang707.slyt@sinopec.com。

通讯作者:

基金项目:


Progress and prospect of experimental technologies for continental shale oil development
Author:
Affiliation:

Fund Project:

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
    摘要:

    随着页岩油勘探开发力度不断加大,页岩油开发实验技术在继承常规油藏和页岩气藏实验技术方法的基础上不断发展完善,初步形成了一套油藏物理与渗流机理实验技术体系,为页岩油藏地质评价、油藏工程优化设计及提高采收率提供了有力技术支撑。系统总结了孔隙度、渗透率、油水饱和度、润湿性、相对渗透率、渗吸等6 项实验技术国内外发展现状,结合陆相页岩油成熟度低、非均质性强、纹层和微裂缝发育等特点,从实验技术的测定方法和原理、关键影响因素和实验控制条件、方法优缺点和技术适用性等方面,提出了各实验技术面临的主要问题、发展趋势和攻关方向。研究结果表明:①统一岩样清洗溶剂及清洗时间是提高孔隙度不同测定方法之间可对比性的关键,核磁共振测定孔隙度技术是满足矿场快速分析需求的技术发展方向。②非规则、多方向以及模拟地层压力变化的渗透率测定技术是下步技术发展方向。③酒精浸泡法和二维核磁共振(T1-T2)法是页岩油水饱和度测定的技术发展方向,依然面临黏土束缚水、吸附油对测定精度的影响难题。④液滴形态法是页岩油藏润湿性测定技术的未来发展方向之一,需要对实验方法及表面润湿和自发渗吸2个过程的综合评价方法进行深化研究并统一标准。⑤实验测定和数值方法相结合是获取页岩油藏相对渗透率的有效路径,微量油水计量、末端效应校正以及考虑压力时变的技术方法是攻关方向。⑥压后弹性开发中渗吸效果评价、闷井时间优化应采用带压渗吸测定方式,基于核磁共振T2谱、分层T2谱和T1-T2谱的带压渗吸测定方法将是重要技术发展方向之一。

    Abstract:

    As shale oil exploration and development intensifies, the experimental technologies for shale oil development have been continuously improved while inheriting the experimental technologies and methods of conventional reservoirs and shale gas reservoirs,and a set of experimental technology systems of reservoir physics and flow mechanisms has been initially formed,which provides strong technical support for geological evaluation of shale reservoirs,reservoir engineering optimization design,and enhanced oil recovery. The development status of six experimental technologies in China and abroad,including porosity,permeability,oil-water saturation,wettability,relative permeability, and imbibition,was systematically summarized. In view of the characteristics of continental shale oil, such as low maturity,strong heterogeneity,and well-developed lamina and micro-fractures,the measurement methods and principles, key influencing factors, control conditions of experiments, advantages and disadvantages and technical applicability of experiment methods were analyzed. The main problems, development trends, and research direction of these experimental technologies were put forward. The results show that ① unifying the cleaning agent and cleaning time of rock samples is the key to improving the comparability of different measurement methods of porosity, and nuclear magnetic resonance measurement of porosity is the technological development direction to meet the needs of rapid analysis in mining fields;② the irregular and multi-directional permeability measurement technology capable of simulating formation pressure changes is the future technological development direction;③ the alcohol soaking method and two-dimensional nuclear magnetic resonance (T1-T2) method are the technological development direction of the determination of shale oil-water saturation, but they still face the problem of the influence of clay bound water and adsorbed oil on the determination accuracy;④ the droplet morphology method is one of the future development directions of measurement technology of shale reservoir wettability,which requires further research and unified standards in experimental methods and comprehensive evaluation methods for surface wetting and spontaneous imbibition processes;⑤ the combination of experimental measurement and numerical method is an effective way to obtain the relative permeability of shale reservoirs, and the micro-oil and water metering, end-effect correction, as well as technologies and methods considering the time-varying pressure are the key directions;⑥ pressure imbibition measurement method should be used to evaluate imbibition effect and optimize well kill time in elastic development after fracturing. Pressure imbibition measurement methods based on nuclear magnetic resonance T2spectrum, stratification T2spectrum,and T1-T2spectrum will be one of the essential technological development directions.

    参考文献
    相似文献
    引证文献
引用本文

孙志刚,于春磊,陈辉,张民,孙强,贾丽华,孙超,陈挺,张红欣,范菲,张礼臻.陆相页岩油开发实验技术现状与展望[J].油气地质与采收率,2024,31(5):186~198

复制
分享
文章指标
  • 点击次数:
  • 下载次数:
历史
  • 收稿日期:2024-05-10
  • 最后修改日期:2024-06-10
  • 录用日期:
  • 在线发布日期: 2024-08-20
×
《油气地质与采收率》
《油气地质与采收率》启动新投稿网站的公告