期刊文献+

面向地质目标的地震采集设计优化方法 被引量:4

Optimum design method of geologic target-oriented seismic acquisition
下载PDF
导出
摘要 本文简要回顾了济阳拗陷三维地震采集观测系统的发展历程,从济阳拗陷的地震地质条件出发,进行了面向地质目标的地震采集优化设计方法研究,并获得以下认识:①薄层模型单炮正演模拟表明,只有较高的地震子波主频才能分辨薄层,且随着炮检距增大,将发生薄层干涉现象,并导致地震子波主频降低。因此一定要充分利用中、近炮检距信息研究薄层,并进行分炮检距处理。②通过对缓坡带、洼陷带、中央断裂背斜构造带、潜山披覆构造、陡坡带等地质模型的二维、三维正演模拟认识到:无论激发点位置如何,地下复杂界面反射的有效接收范围都集中在反射段正上方;对于复杂构造,宜采用小炮距、小接收线距、适中的排列片长度和宽度,以确保观测波场的连续性。③面向地质目标的地震采集设计优化的关键技术是建立符合实际的三维地震地质模型,并针对目的层段进行正演模拟,分析不同观测方案的CRP覆盖次数分布,以优选观测系统。CG油田三维地震采集优化设计实例表明,文中方法对具有复杂构造的陆相断陷盆地的地震采集优化设计具有借鉴意义。 The paper briefly reviewed the development history of 3-D seismic acquisition geometry in Jiyang depression, and carried out the study on the optimum design method of geologic target-oriented seismic acquisition by starting from the seismic and geologic conditions of Jiyang depression, which obtained following knowledge:①the single-shot forward simulation of thin-layer model showed the phenomenon of thin-layer interference will be taken place along with increasing the offset, leading to decrease the dominan...
作者 沈财余
出处 《石油地球物理勘探》 EI CSCD 北大核心 2008年第5期493-507,481,共16页 Oil Geophysical Prospecting
关键词 济阳拗陷 地质目标 观测系统 模型 地震采集 设计 正演模拟 Jiyang depression geologic target geometry model seismic acquisition design for-ward simulation
  • 相关文献

参考文献3

二级参考文献17

  • 1熊翥.我国物探技术的进步及展望[J].石油地球物理勘探,2004,39(4):488-492. 被引量:33
  • 2刘兴材 李龙.[A]..复式油气田论文集[C].北京:石油工业出版社,2002..
  • 3陆基孟.地震勘探原理.东营:石油大学出版社,1993
  • 4Dave Marsden. Static corrections-a review.The Leading Edge, 1993,l12(1):43~49
  • 5Andrew D et al. Modeling long-offset seismic waves for sub-basalt imaging, Expanded abstracts of 73rd SEG Mtg,2003
  • 6Cory Hoelting et al. Elastic modeling and steep dips: unraveling the refleeted wavefield, Expanded Abstracts of 73rd SEG Mtg,2003
  • 7Martin G et al. Marmousi-2: an updated model for the investigation of AVO in structurally complex areas. Expanded Abstracts of 72nd SEG Mtg, Sall Lake City,2002
  • 8Klimes L, Travel times in the INRIA Marmousi models. Expanded Abstracts of 67th SEG Mtg,1997
  • 9Versteeg R. The Marmousi experience: velocity model determination on a synthetic complex data set. The Leading Edge,1994,13(9)
  • 10Billette F et al. Stereotomography with automatic picking: application to the Marmousi dataset, Expanded Abstracts of 68th SEG Mtg,1998

共引文献37

同被引文献126

引证文献4

二级引证文献11

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部