东营凹陷东部砂砾岩体地震期次划分技术探讨

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英文篇名：Classification of Seismic Sedimentary Cycles of Glutenite in the Eastern Dongying Sag 中文刊名：石油天然气学报 英文刊名：Journal of Oil and Gas Technology 作者：王庆华 英文作者：WANG Qing-hua(Research Institute of Geosciences ; Shengli Oilfield Co Ltd ; Dongying 257015 ; Shandong ; China) 中文关键词：高阶谱时频分析 ; Wheeler变换 ; 东营凹陷 ; 砂砾岩体 ; 期次 英文关键词：high order spectrum in time-frequency analysis ; Wheeler transform ; Dongying Sag ; glutenite ; sedimentary cycle 出版日期：2012-09-15 机构：中石化胜利油田分公司地质科学研究院; 年：2012 期：09 出版单位：石油天然气学报

摘要

砂砾岩体是一种低孔低渗、致密、复杂、特殊的储集体类型。深层砂砾岩扇体具有发育跨度大、扇体多期混杂堆积、累计厚度大、发育规律复杂、纵向划分及横向对比难度大的特点,长期以来对扇体期次划分很大程度上依赖于实钻资料。为此,以东营凹陷北部陡坡带东段盐家地区作为研究目标,从地震的角度对该地区深层砂砾岩体期次的划分技术进行探讨研究,利用高阶谱时频分析技术来实现单井期次的划分;并利用Wheeler变换实现地震等时面的追踪解释,从而建立了一套该地区砂砾岩扇体期次划分技术。
Glutenite was a kind of low porosity and low permeability,dense,complex and special types of reservoir.Deep glutenite fan body had the characteristics of growing large span,multi period mixed deposition of fan body,big total thickness,complex development law,difficult for vertical division and horizontal comparison,for a long time fan stage division was largely dependent on the actual drilling data.The steep belt in Yanjia Area in the Eastern Dongying Depression is taken as the research target,from the aspect of earthquake in the region,the technique for sedimentary cycle division for deep glutenite is studied,high order spectrum in time-frequency analysis technology is used to realize the single well time division;Wheeler transform is used for isotropic seismic interpretation tracing,a set of sedimentary cycles technology is established for division of sedimentary cycles.

引文

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