Article(id=1208054449143124202, tenantId=1146029695717560320, journalId=1146123222451335185, issueId=1208054446576215005, articleNumber=1671-1807(2025)13-0028-06, orderNo=null, doi=null, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=1736697600000, receivedDateStr=2025-01-13, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1765952225242, onlineDateStr=2025-12-17, pubDate=1752076800000, pubDateStr=2025-07-10, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1765952225242, onlineIssueDateStr=2025-12-17, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1765952225242, creator=13701087609, updateTime=1765952225242, updator=13701087609, issue=Issue{id=1208054446576215005, tenantId=1146029695717560320, journalId=1146123222451335185, year='2025', volume='25', issue='13', pageStart='1', pageEnd='310', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1765952224630, creator=13701087609, updateTime=1765952288340, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1208054713870815567, tenantId=1146029695717560320, journalId=1146123222451335185, issueId=1208054446576215005, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1208054713870815568, tenantId=1146029695717560320, journalId=1146123222451335185, issueId=1208054446576215005, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=28, endPage=33, ext={EN=ArticleExt(id=1208054450774708483, articleId=1208054449143124202, tenantId=1146029695717560320, journalId=1146123222451335185, language=EN, title=Seismic Waveform Classification Techniques and Applications for Unequally Thick Layers, columnId=1151876674645226399, journalTitle=Science Technology and Industry, columnName=Technology Innovation, runingTitle=null, highlight=null, articleAbstract=
The prevailing techniques for seismic phase analysis encompass waveform classification, seismic attribute feature mapping, and seismic geomorphological delineation. The waveform classification method is a well-established and extensively utilized technique for lithological, sand body, and oil and gas reservoir prediction. Nevertheless, the conventional approach relies on equal-length time window waveform similarity, which is only pertinent to the stable zone of formation thickness. As a consequence of changes in formation thickness, equal-length seismic waveforms cannot reflect the complete lithological information, or conversely, may lead to the phenomenon of ‘time-warp’, which in turn affects the accurate revelation of the relationship between reservoirs and waveforms. A seismic waveform classification method for unequally thick layers, intending proposes to reduce complexity and enhance classification efficacy. In comparison to the traditional classification method, this approach transfers unequal seismic signals from the time domain to the Hilbert domain with constant bandwidth, thereby ensuring the completeness of the waveform extraction and simplifying the traditional two-dimensional self-organized feature mapping network into a structure with fewer neurons and a one-dimensional output layer. This adaptation is better suited to the resolution of the seismic data and the need for classification efficiency. The enhanced network retains the capacity to modify the field and value of weight correction by with the responsiveness of the output neurons to the input neurons, thereby facilitating effective control of the network size, reducing the complexity of classification calculations, and enhancing classification efficacy. The practical results confirm the effectiveness of the method and significantly improve the accuracy of waveform classification.
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地震相分析主流方法包括波形分类、地震属性特征映射及地震地貌学划分等。波形分类法成熟且广泛应用于岩性、砂体、油气藏预测等。但传统方法基于等长时窗波形相似性,仅适用于地层厚度稳定区。随着地层厚度变化,等长的地震波形难以反映完整岩性信息,或致“穿时”现象,影响储层与波形关系的准确揭示。为此,提出一种针对不等厚层段的地震波形分类方法,能够减少复杂度,并改善分类效果。相对于传统分类方法,该方法将不等长的地震信号由时间域转移到具有恒定频宽的希尔伯特域,确保了波形提取的完整性,并且,将传统二维自组织特征映射网络简化为神经元数量更少且输出层为一维的结构,从而更好地适应地震数据的分辨率和分类效率需求。改进后的网络仍可根据输出层神经元对输入神经元的响应度来调整权重修正的领域以及数值,从而有效控制网络规模,减少分类计算时的复杂度并改善分类效果。实际应用结果验证了该方法的有效性,显著提升了波形分类的准确性。
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肖仁睿(1996—),男,湖北武汉人,硕士,工程师,研究方向为地震资料综合解释;
陈科(1985—),男,四川仁寿人,硕士,高级工程师,研究方向为地震资料综合解释;
王昌平(1995—),男,河南南阳人,硕士,工程师,研究方向为地震资料采集设备研发。
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肖仁睿(1996—),男,湖北武汉人,硕士,工程师,研究方向为地震资料综合解释;
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肖仁睿(1996—),男,湖北武汉人,硕士,工程师,研究方向为地震资料综合解释;
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陈科(1985—),男,四川仁寿人,硕士,高级工程师,研究方向为地震资料综合解释;
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陈科(1985—),男,四川仁寿人,硕士,高级工程师,研究方向为地震资料综合解释;
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王昌平(1995—),男,河南南阳人,硕士,工程师,研究方向为地震资料采集设备研发。
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王昌平(1995—),男,河南南阳人,硕士,工程师,研究方向为地震资料采集设备研发。
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