新疆石油地质

新疆石油地质 ›› 2011, Vol. 32 ›› Issue (4): 418-420.

• 应用技术 • 上一篇    下一篇

连片叠前时间偏移技术在辽河盆地西部凹陷的应用

季占真, 柳世光, 张淑梅, 高树生, 于娟   

  1. 中国石油辽河油田分公司勘探开发研究院,辽宁盘锦 124010
  • 收稿日期:2010-08-26 出版日期:2011-08-01 发布日期:2020-08-19
  • 作者简介:季占真（1964-）,男,辽宁庄河人,工程师,地球物理勘探,（Tel）0427-7290279（E-mail）jizhanzh@163.com.

Application of Merging Pre-Stack Time Migration Technique in Western Sag of Liaohe Basin

JI Zhan-zhen, LIU Shi-guang, ZHANG Shu-mei, GAO Shu-sheng, YU Juan   

  1. Research Institute of Exploration and Development, Liaohe Oilfield Company, PetroChina, Panjin, Liaoning 124010, China
  • Received:2010-08-26 Online:2011-08-01 Published:2020-08-19

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摘要： 针对研究区资料特点,开展了大面积连片叠前时间偏移技术研究：提高了叠前信噪比;叠前一致性处理,开发了时频空间域振幅调整、振幅归一化、子波处理及空变反褶积等技术;提高了成像质量和资料的横向分辨率。通过研究,实现了13个区块资料的无缝拼接,在4个重点区块发现和落实有利圈闭25个,面积301.6 km2,设计和部署探井17口。

关键词: 剩余静校正, 多域组合去噪, 压制多次波, 振幅归一化, 叠前时间偏移

Abstract: According to the features of seismic data in study area, the technical study of large-scale merging pre-stack time migration (PSTM) is made and the signal-to-noise ratio of pre-stack is improved. The techniques of amplitude adjustment in time-frequency-space domain, amplitude normalization, signature shaping and space-variant deconvolution are developed to improve imaging quality and lateral resolution. The above techniques are applied to 13 blocks, which realize seamless joint of the data, of which 25 favorable traps with an area of 301.6 km2 have been found and determined in four major blocks and 17 exploratory wells have been designed and arranged.

Key words: residual static correction, multi-domain combining noise attenuation, multi-wave suppression, amplitude normalization, pre-stack time migration

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