西南石油大学学报(自然科学版) ›› 2004, Vol. 26 ›› Issue (5): 18-20.DOI: 10.3863/j.issn.1000-2634.2004.05.005

• 地质勘探 • 上一篇    下一篇

利用拟声波曲线进行高分辨率地震反演

石磊1 王昌景2

  

  1. 1.中国地质大学,北京100012 ; 2.辽河油田开发部
  • 收稿日期:2003-09-22 修回日期:1900-01-01 出版日期:2004-10-20 发布日期:2004-10-20
  • 通讯作者: 石磊

DO HIGH RESOLUTION INVERSION BY USING SIMULATED AC CURVE

SHI Lei WANG Chang-jing   

  1. China University Geosciences (Beijing) ,Haidian Beijing 100083,China
  • Received:2003-09-22 Revised:1900-01-01 Online:2004-10-20 Published:2004-10-20
  • Contact: SHI Lei

摘要: 由于地下情况的复杂性和地震原始资料的分辨率的影响,要得到一个令地质家和地球物理学家满意的结果还是相当困难,特别是井约束反演都要用到声波曲线,当声波曲线由于各方面的影响不能反映储层的真实情况时,反演的结果就会与实际情况相差很大,针对这种情况,提出了拟声波的方法来解决这个问题。介绍了测井约束波阻抗反演技术和拟声波技术的原理及方法。该反演方法是基于初始模型的反演方法,利用拟声波曲线代替声波曲线来建立初始模型,并进行波阻抗反演,可以大大提高反演结果对储层反映的精确度。该方法在实际的应用过程中得到了很
好的效果。


关键词: 波阻抗反演, 地质模型, 井约束反演, 拟声波曲线

Abstract:

At present, the seismic inversion technology becomes most popular. Since the complex of the subsurface formation and the resolution of the data, it is very difficult to get a good result, especially for the well-log-constrained inversion, if the AC curve can not show the real situation of the formation, the inversion
result will be very difference from the true formation. So we can solve this problem by using the simulated AC curve. This article introduces the method and principle of the technology of well-log-constrained inversion and simulated AC curve. This method is based on the preliminary model, using simulated AC
curve instead of AC curve to do the inversion, and it can get very high resolution of inversion result. and this method has got very good result in application.

Key words: impedance inversion, geology model, well-logconstrained inversion, simulated AC curve

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