田东升;王云专;李义鹏;石颖;柯璇;李婷婷;刘淑芬;

• 1:东北石油大学地球科学学院

• 2:北华航天工业学院电子工程系

摘要(Abstract)：

叠前深度偏移是获得地下构造映像的有效手段,而基于波动方程的叠前深度偏移方法对速度横向变化剧烈的地层有更好的适应性.分析基于单程波方程的相移法、相移加插值法、频率—空间域有限差分法、傅里叶有限差分法和基于双程波方程的逆时偏移方法,借助于地堑模型与盐丘模型,测试5种逆时偏移方法成像复杂构造的精度和适应性.结果表明,基于波动方程的叠前深度偏移方法可实现横向变速地下构造成像,相比于基于双程波方程的逆时偏移方法,单程波方程方法对垂直断层等高陡倾角构造成像有局限性;逆时偏移方法对垂直断层、盐丘下边界等复杂构造可以清晰成像,辅以精确的地层速度,逆时偏移方法在地震资料成像领域中有广阔的发展和应用前景.

关键词(KeyWords)：叠前深度偏移;相移法;相移加插值;频率—空间域有限差分;傅里叶有限差分;逆时偏移

Abstract:

Keywords:

基金项目(Foundation):黑龙江省教育厅科学技术研究项目(12511025)

作者(Author):田东升;王云专;李义鹏;石颖;柯璇;李婷婷;刘淑芬;

Email:

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