地球物理学进展 ›› 2019, Vol. 34 ›› Issue (6): 2353-2360.doi: 10.6038/pg2019DD0239

• 应用地球物理学Ⅰ(油气及金属矿产地球物理勘探) • 上一篇    下一篇

地震勘探中的多尺度问题及其研究进展

未晛1, 杨志芳2, 晏信飞2   

  1. 1. 北京劳动保障职业学院, 北京 100029;
    2. 中国石油集团科学技术研究院有限公司, 北京 100083
  • 收稿日期:2019-06-26 修回日期:2019-10-11 出版日期:2019-12-20 发布日期:2019-12-29
  • 作者简介:未晛,男,1985年生,博士,讲师,主要从事地震岩石物理、储层预测等研究. (E-mail:weixian_why@126.com.cn)
  • 基金资助:
    北京劳动保障职业学院课题“地震勘探中尺度效应的岩石物理实验研究”(201924)资助.

Multi-scale issue in seismic exploration and its research progress

WEI Xian1, YANG Zhi-fang2, YAN Xin-fei2   

  1. 1. Beijing Vocational College of Labor and Social Security, Beijing 100029, China;
    2. Research Institute of Petroleum Exploration and Development, Beijing 100083, China
  • Received:2019-06-26 Revised:2019-10-11 Online:2019-12-20 Published:2019-12-29

摘要: 在地震定量解释中常需使用多种地球物理数据(地质、地面地震、井间地震、VSP、测井与实验室岩芯测试等数据)进行储层预测和烃类检测,然而由于各种资料间存在着记录方式、观测频率的差异及储层非均质性的影响,在联合应用中存在着多尺度问题,该问题是地震勘探中仍未解决的重大难题之一.本文详细阐述了多尺度问题的内涵及该问题在地震勘探中的表现,并重点论述国内外主要研究进展,特别在实验室跨尺度测量技术、数字岩芯技术与其他地球物理技术联合应用解决该问题的进展,并分析讨论了目前地震勘探中多尺度问题研究中存在的不足、研究方向及建议.

关键词: 地震勘探, 多尺度, 岩石物理, 定量解释

Abstract: The integrated application of multi-scale geophysical data (geological, surface seismic, crosswell seismic, VSP, Logging and laboratory data) are usually required in the reservoir prediction and the direct hydrocarbon indicators on seismic sections. However, there is a critic multi-scale problem about data fusion due to the difference of the data recorded method, measurement frequency range, and the influence of the reservoir heterogeneity. Even, the three coupled factors make the problem worse, which is one of the most difficult and unresolved problems in seismic exploration. This paper will discuss the meaning and manifestation in geophysical exploration of multi-scale problem and the main progresses in integrated application of multi-scale geophysical data, especially in the integrated application of the Lab measurements, digital rock physics with other geophysical techniques. According to the literature research, the trans-scale rock physics measurements is the key to deal with scale-dependence issue, which has become the hot in recent years; the multi-scale digital core technology attempt to solve the scale-dependence issue due to the influence of the reservoir heterogeneity; A full-frequency band velocity prediction theory or model that include all the mechanisms of dispersion and attenuation is a critic challenging and important issue; Some empirical formulas or methods that has been proven in practice for the effect are the important complement that deal with scale-dependence. Finally, the paper will also discuss the difficulties faced in the integrated application of multi-scale geophysical data, the latest study trend and some suggestion.

Key words: Seismic exploration, Multi-scale, Rock physics, Quantitative prediction

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