A surface wave suppression method based on scale-partition

doi:10.7623/syxb201402010

ACTA PETROLEI SINICA ›› 2014, Vol. 35 ›› Issue (2): 303-309.DOI: 10.7623/syxb201402010

• Petroleum Exploration • Previous Articles Next Articles

A surface wave suppression method based on scale-partition

Wang Deying¹, Li Zhenchun¹, Huang Jianping¹, Yang Lu², Chen Peng³

1. School of Geosciences, China University of Petroleum, Qingdao 266580, China;
2. Department of Emerging Geophysical Exploration Development, CNPC Geophysical Company Limited, Zhuozhou 072751, China;
3. Research Institute of Exploration and Development, PetroChina Changqing Oilfield Company, Xi'an 710018, China

Received:2013-09-06 Revised:2013-11-24 Online:2014-03-25 Published:2014-04-11

一种分尺度的面波压制方法

王德营¹, 李振春¹, 黄建平¹, 杨璐², 陈鹏³

1. 中国石油大学地球科学与技术学院山东青岛 266580;
2. 中国石油集团东方地球物理勘探有限责任公司新兴物探开发处河北涿州 072751;
3. 中国石油长庆油田公司勘探开发研究院陕西西安 710018

通讯作者: 邹娟，女，1987年2月生，2010年毕业于中国石油大学（华东），现为中国石油大学（华东）地球科学与技术学院博士研究生，主要从事油气区构造解析、构造应力场研究。Email：zoujuan2012@yeah.net
作者简介:邹娟，女，1987年2月生，2010年毕业于中国石油大学（华东），现为中国石油大学（华东）地球科学与技术学院博士研究生，主要从事油气区构造解析、构造应力场研究。Email：zoujuan2012@yeah.net
基金资助:
国家重点基础研究发展计划（973）项目（2011CB202402）；国家自然科学基金项目（No.41104069和No.41274124）；山东省自然科学基金项目（ZR2011DQ016）及中央高校基本科研业务经费专项资金项目（R1401005A）资助。

Abstract

Abstract:

Surface wave is one of the main interference waves in land-based seismic exploration. In conventional methods for surface wave suppression are only based on a difference in the properties of reflection signals and surface waves, and may result in energy loss of effective signals to some extent. In view of differences between the surface waves of different scales and effective signals, this paper proposes a surface wave suppression method based on scale-partition and grading. Surface waves and reflection waves in high-scale seismic data are separated in Shearlet domain; Using the Empirical Mode Decomposition Method, signal and noise of low-scale seismic data are separated in S domain. This suppression method is applied in modeling and processing of real data, which proves its correctness and validity. As compared with the threshold method in Curvelet domain, this method can achieve more complete suppression of surface waves, while keeping the reflection information.

Key words: seismic surface wave suppression, Shearlet transform, S-transform, empirical mode decomposition, Curvelet domain, amplitude preservation

摘要：

面波是陆上地震勘探中的主要干扰波之一，常规的面波压制方法仅从面波与反射信号在某一方面的差异进行压制，会在一定程度上造成有效信号的损伤。利用不同尺度面波与有效信号的差异，提出一种分尺度分级压制面波的方法。对地震数据的高尺度部分在Shearlet域进行反射波与面波的分离，对地震数据的低尺度部分在S域采用经验模态分解（EMD）的方式进行信噪分离。将该方法用于模型及实际资料处理，处理结果表明了该方法的正确性与有效性；并与Curvelet域的阈值法进行了对比，结果表明此方法在保持反射信息的同时面波压制更彻底。

关键词: 地震面波压制, Shearlet变换, S变换, 经验模态分解, Curvelet域, 保幅

CLC Number:

P631.4

Wang Deying, Li Zhenchun, Huang Jianping, Yang Lu, Chen Peng. A surface wave suppression method based on scale-partition[J]. ACTA PETROLEI SINICA, 2014, 35(2): 303-309.

王德营, 李振春, 黄建平, 杨璐, 陈鹏. 一种分尺度的面波压制方法[J]. 石油学报, 2014, 35(2): 303-309.

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A surface wave suppression method based on scale-partition

一种分尺度的面波压制方法

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