岩性油气藏 ›› 2019, Vol. 31 ›› Issue (4): 85–91.doi: 10.12108/yxyqc.20190409

• 勘探技术 • 上一篇    下一篇

基于压缩感知技术的去除强屏蔽研究及应用

张云银, 魏欣伟, 谭明友, 高秋菊, 朱定蓉, 林述喜   

  1. 中国石油化工股份有限公司胜利油田分公司 物探研究院, 山东 东营 257000
  • 收稿日期:2019-01-10 修回日期:2019-03-28 出版日期:2019-07-21 发布日期:2019-06-21
  • 第一作者:张云银(1969-),男,博士,研究员,主要从事油气勘探综合研究方面的工作。地址:(257000)山东省东营市北一路210号中国石油化工股份有限公司胜利油田分公司。Email:slzyy2013@163.com。
  • 基金资助:
    国家重大科技专项"渤海湾盆地济阳坳陷致密油开发示范工程"（编号：2017ZX05072）资助

Removal of seismic strong shield interface based on compressed sensing technology and its application

ZHANG Yunyin, WEI Xinwei, TAN Mingyou, GAO Qiuju, ZHU Dingrong, LIN Shuxi   

  1. Geophysical Research Institute, Sinopec Shengli Oilfield Company, Dongying 257000, Shandong, China
  • Received:2019-01-10 Revised:2019-03-28 Online:2019-07-21 Published:2019-06-21

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摘要： 渤海湾盆地济阳凹陷渤南地区砂砾岩致密储层受膏岩高速体和自身复杂的叠置关系以及非均质性等影响，导致该类储层具有强屏蔽弱反射的响应特征。常规储层预测方法难以满足储层精细预测的需求，地震识别难，储层地震精细刻画难。通过应用"钉型"子波+压缩感知技术有效地去除了强反射背景，突出了目的层段砂岩的地震响应特征，有效提高了砂岩的预测能力。该研究方法可为下一步勘探部署提供了有力支撑。

关键词: 去屏蔽, “钉型”子波, 压缩感知, 地震响应

Abstract: The tight sandy conglomerate reservoirs in Bonan area of Jiyang Sag,Bohai Bay Basin are affected by gypsum rock,complex superimposition relationship and heterogeneity,which results in shield interface in the seismic signal. Conventional reservoir prediction methods can not meet the needs of accurate reservoir prediction,seismic identification is difficult and the reservoir is also difficult to describe. The nail-type wavelet and compressed sensing technology were used to remove the strong shield interface,highlight the seismic response characteristics of sandstone in the target layer,effectively improve the prediction ability of sandstone. This method can provide strong support for the next exploration deployment.

Key words: removal of shield, nail-type wavelet, compressed sensing, seismic response

中图分类号: 

  • P631.4
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