兴隆台构造带沙河街组三段浊积岩优质储层叠前地震预测

发布时间：2018-01-16 18:35

本文关键词：兴隆台构造带沙河街组三段浊积岩优质储层叠前地震预测　出处：《大庆石油地质与开发》2017年01期 　论文类型：期刊论文

【摘要】：兴隆台构造带沙河街组三段发育多套深水浊积砂体,并被优质烃源岩所包围,是岩性油气藏发育的有利地区。但由于浊积砂体具有泥质体积分数大、储层非均质性强的特点,且砂泥岩波阻抗分异性差,故常规叠后波阻抗反演无法准确识别优质储层,制约了这一地区岩性油气藏的勘探发现。从岩石物理建模入手,通过多种弹性属性交会分析,指出泊松比为识别浊积岩优质储层的有效弹性参数。利用保幅保真地震资料,采用叠前反演得到泊松比,对浊积岩优质储层分布进行了预测,预测结果与钻探成果吻合。该方法可以有效预测复杂岩性优质储层。
[Abstract]:Shahe Street Group Three Section develops many sets of turbidite sand bodies in Xinglongtai tectonic belt, and surrounded by high quality hydrocarbon source rock is the favorable area for lithologic reservoir development. But because of the turbidite sand body with mud volume fraction, the characteristics of strong reservoir heterogeneity, and the sand mudstone wave impedance difference poor, so the conventional post stack impedance inversion can not accurately identify the high quality reservoir, which reservoir exploration in this area of lithologic gas. Starting from the rock physics modeling, through a variety of elastic attribute analysis, pointed out that the Poisson's ratio of the effective elastic parameters for the identification of turbidite reservoir. Using seismic amplitude fidelity the data, using pre stack inversion of Poisson's ratio, turbidite reservoir prediction of the layer distribution, prediction results and drilling results well. The method can effectively predict the complex lithology reservoir.

【作者单位】：中国石油辽河油田分公司勘探开发研究院;
【基金】：中国石油天然气股份有限公司科学研究与技术开发项目“富油凹陷的形成与前景预测”(2013D-0708)资助
【分类号】：P618.13;P631.4
【正文快照】： 辽河坳陷划分为西部凹陷、东部凹陷、大民屯凹陷和西部凸起、东部凸起、中央凸起6个次级构造单元,其中西部凹陷为最大的含油气凹陷,面积约2 560 km2,呈“东断西超、南低北高”、北东向延展的箕状凹陷,古近系始新统沙河街组三段(简称沙三段)为主要勘探层系。兴隆台构造带位于西

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