岩性油气藏 ›› 2017, Vol. 29 ›› Issue (6): 91–100.doi: 10.3969/j.issn.1673-8926.2017.06.012

• 技术方法 • 上一篇    下一篇

逆时成像技术在大庆探区复杂构造成像中的应用

陈可洋   

  1. 中国石油大庆油田有限责任公司 勘探开发研究院, 黑龙江 大庆 163712
  • 收稿日期:2017-03-10 修回日期:2017-05-25 出版日期:2017-11-21 发布日期:2017-11-21
  • 作者简介:陈可洋(1983-),男,硕士,工程师,主要从事地震波场模拟与成像、地震信号数字处理与解释方法、高性能集群并行计算等科研工作。地址:(163712)黑龙江省大庆市让胡路区大庆油田勘探开发研究院。Email:keyangchen@163.com。
  • 基金资助:
    国家重点基础研究发展计划（973计划）项目"火山岩油气藏的形成机制与分布规律"（编号：2009CB219307）、中国石油天然气股份有限公司重大科技专项"大庆油田原油4000万t持续稳产关键技术研究"（编号：2011E-1203）及中国石油天然气股份有限公司科技计划项目"井中VSP地震处理配套技术研究及在松辽岩性油藏评价中的应用"（编号：kt2015-12-08）联合资助

Application of reverse-time migration technology to complex structural imaging in Daqing exploration area

CHEN Keyang   

  1. Research Institute of Exploration & Development, PetroChina Daqing Oilfield Company Ltd., Daqing 163712, Heilongjiang, China
  • Received:2017-03-10 Revised:2017-05-25 Online:2017-11-21 Published:2017-11-21

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摘要： 针对常规地震成像方法难以解决大庆探区复杂构造精确成像的问题，从逆时成像技术的基本原理出发，结合数值模拟及实例应用，系统分析了有限差分阶数、吸收边界条件、逆时成像条件、子波相位校正、背景噪声压制、逆时参数优化等关键因素对逆时成像精度的影响，总结出一套改进了核心算法、提高了成像精度的"高精度"逆时成像技术，并应用于大庆探区实际地震资料复杂构造的逆时成像处理中。结果表明，改进的"高精度"逆时成像技术的应用效果较常规克希霍夫叠前深度成像技术和常规相关法逆时成像技术均有显著改善。该研究成果对于逆时成像技术的理论方法研究及实际应用具有参考价值。

关键词: 动态物源, 层序地层学, 古地貌分析, 储层预测, 崖南凹陷, 琼东南盆地

Abstract: The conventional seismic migration methods are difficult to solve complex structure accurate imaging of Daqing seismic data. The key factors on reverse-time migration precision were analyzed, such as finite difference method's order, absorbing boundary conditions, reverse-time imaging condition, wavelet phase correction, background noise suppression,reverse-time parameter optimization. A set of high-precision reverse-time migration techniques is improved in key algorithm and imaging results, which is applied to practical seismic data reverse-time migration in Daqing exploration area. The high-precision reverse-time migration technology is better than that of conventional Kirchhoff pre-stack depth imaging technology and conventional correlation reverse-time ima-ging technology. The results are of some reference to the theory,method,and practical application of reverse-time migration technology.

Key words: dynamic provenance, sequence stratigraphy, paleogeomorphic analysis, reservoir prediction, Yanan Sag, Qiongdongnan Basin

中图分类号: 

  • P631.4
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