新疆石油地质

新疆石油地质 ›› 2006, Vol. 27 ›› Issue (5): 604-606.

• 应用技术 • 上一篇    下一篇

共反射面元叠加在复杂地区地震成像中的应用

覃天1, 贾明辰2, 凌勋2, 周作铭2, 刘全艳2   

  1. 1.中国地质大学(北京), 北京 100083;
    2.中国石油新疆油田分公司勘探开发研究院, 新疆克拉玛依 834000
  • 收稿日期:2005-12-20 修回日期:2005-12-20 出版日期:2006-10-01 发布日期:2020-10-20
  • 作者简介:覃天(1973-), 男, 湖南邵阳人, 在读博士研究生, 地球物理,(Tel) 010-82312114(E-mail) qintian319@163.com.

Application of CRS Stack to Seismic Imaging in Complex Area

QIN Tian1, JIA Ming-chen2, LING Xun2, ZHOU Zuo-ming2, LIU Quan-yan2   

  1. 1. China University of Geosciences, Beijing 100083, China;
    2. Research Institute of Exploration and Development, Xinjiang Oilfield Company, PetroChina, Karmay, Xinjiang 834000, China
  • Received:2005-12-20 Revised:2005-12-20 Online:2006-10-01 Published:2020-10-20

PDF

453

摘要： 共反射面元(CRS) 叠加与常规共中心点(CMP) 叠加相比是一种崭新的叠加方法。它是一种不依赖于宏观速度模型的零炮检距剖面成像方法,它的实现只依赖于3个波场属性参数的确定。共反射面元叠加通过将来自菲涅尔带范围内的反射波沿着叠加面求和,进而扩大叠加次数,达到增强反射信号能量、提高地震反射波的叠加成像质量的目的。实际地震资料处理结果表明,共反射面元叠加法能够提高剖面的信噪比、增加反射波同相轴的连续性。

关键词: 地震, 成像, 面元, 共中心点叠加

Abstract: Common Reflection Surface (CRS) stack, a new stacking technique compared with conventional common midpoint (CMP) stack, is a zero-offset profile imaging method independent of macro-model. CRS stack depends on determination of three wave-field attributes, makes a summation using reflections along the stack surface, and increases the stacking numbers from Fresnel zone, in order to boost up signal energy and improve the stack imaging quality. The real seismic data processing indicates that this method can increase both the ratio of signal to noise in profile and the continuity of reflective events.

Key words: seismic profile, imaging, common reflection surface, bin, common midpoint stack

中图分类号: