地震波形分类技术在地震相分析中的应用——以清溪场地区为例

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英文篇名：Application of Seismic-waveform Classification to Seismic-facies Analysis: An Example from Qingxichang Area 中文刊名：天然气技术 英文刊名：Natural Gas Technology 作者：李雷涛 ; 肖秋红 英文作者：LI Lei-tao and XIAO Qiu-hong 中文关键词：地震相 ; 波形分类 ; 时窗 ; 模型道 ; 飞仙关组 ; 四川 ; 东北 英文关键词：seismic facies ; waveform classification ; time window ; model trace ; Feixianguan Formation ; Sichuan ; northeast 出版日期：2010-10-30 机构：中国石化勘探南方分公司研究院; 年：2010 期：05 出版单位：天然气技术

摘要

以波形分类为基础的地震相分类研究可以有效筛选并快速逼近有利勘探目标。通过对地震波形分类技术原理的分析,以川东北地区清溪场区块为例,讨论了实施过程中时窗选取、模型道创建以及地震相成图中分类数和迭代次数的确定等问题,对清溪场构造飞仙关组飞四段地震相进行对比分析,得到了较为清晰的地震相成图,从图中分辨出了清溪A、B、C井的地震相情况,与钻探情况基本吻合。
Based on waveform classification, the seismic-facies classification can effectively screen out and rapidly approximate to favorable exploration target. Taking Qingxichang block of northeastern Sichuan Basin as an example, we not only analyzed the theory of waveform classification but also discussed some problems, including time-window selection, model-trace establishment, along with classification- and iteration-number determination in seismic-facies mapping. Moreover, the seismic facies of Feixianguan 4 Member were studied and clearer mapping was obtained. From the mapping, the seismic facies of A, B and C wells in the block were identified, which are roughly in agreement with drilling results.

引文

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