川中磨溪—高石梯地区下寒武统龙王庙组层序格架内滩体的发育演化特征及对储层的控制

发布时间：2018-01-20 10:18

  本文关键词： 四川盆地 寒武纪 龙王庙组 三级层序 台内滩 沉积序列 储层　出处：《海相油气地质》2017年01期 　论文类型：期刊论文

【摘要】：川中磨溪—高石梯地区龙王庙组可划分为两个三级层序。通过大量岩心、薄片以及测井资料综合分析,磨溪—高石梯地区龙王庙期整体属于局限台地沉积,可划分为台内滩、滩间洼地以及o_湖亚相。以台内滩颗粒含量、沉积构造以及单层滩体沉积厚度为基础,结合测井响应特征分析,将台内滩划分为滩核、滩翼以及白云岩坪等微相,并建立了台内滩的3种典型沉积序列:滩翼—滩核—白云岩坪、o_湖—滩间洼地—台内滩,以及滩间洼地—台内滩。层序格架内台内滩的纵横向发育特征表明:SQ_2时期较SQ_1时期更为发育,滩体单层厚度和总厚度均较大,层序界面附近的滩核—白云岩坪沉积序列上部为最有利的储层发育相带。
[Abstract]:In Moxi Gaoshiti area and Longwangmiao formation can be divided into two three order sequences. Through a large number of core, thin section and well logging analysis, grinding Longwangmiao period - Xi Gaoshiti area belongs to the whole local platform sediment can be divided into interplatform beach, the beach between the lowland and o_ Lake subfacies. On the beach in particle content, sedimentary structure and sedimentary thickness of single-layer flat body, combined with the characteristics of logging response analysis, taiwan beach beach beach is divided into nuclear, wing and dolomite flat microfacies, and set up 3 kinds of typical sedimentary sequence of interplatform Beach: Beach wing beach nuclear Baiyun Yan Ping o_, Lake Beach - intraplatform depressions, and the beach - intraplatform depressions. The sequence framework intraplatform vertical development characteristics show that SQ_2 is more than SQ_1 during the period of development, the beach body monolayer thickness and total thickness are large, sequence near the interface core dolomite flat beach sedimentary sequence The Department is the most favorable reservoir development phase.

【作者单位】： 长江大学油气资源与勘探技术教育部重点实验室;长江大学地球科学学院;
【基金】：国家自然科学基金“碳酸盐岩台缘礁滩储层精细地质建模研究”(编号:41372126) 湖北省创新群体基金“碳酸盐岩岩溶储层成因机理及分布预测研究(编号:2015CFA024)”联合资助
【分类号】：P618.13
【正文快照】： 王，

本文编号：1447823