井震联合薄储层沉积微相表征实例研究  

Thin reservoir sedimentary microfacies characterization based on well logging and seismic data:a case study

作　　者：夏竹 李中超[2] 贾瑞忠[2] 赵师权 熊运斌[2] 张胜 

机构地区：[1]中国石油东方地球物理公司油藏地球物理研究中心,河北涿州072751 [2]中国石化中原油田分公司勘探开发研究院,河南濮阳457001

出　　处：《石油地球物理勘探》2016年第5期1002-1011,838-839,共10页Oil Geophysical Prospecting

基　　金：东方地球物理公司科技专项"水平井开发区井震联合的油藏建模数模及剩余油预测技术研究"(03-05-2015)资助

摘　　要：油田开发中晚期阶段对薄储层沉积微相精细描述的要求更高,采取井震联合手段、半定量或定量地描述是必然趋势。本研究以地质统计学及平面插值算法为数学工具,分别探讨了井点离散型沉积相数据与连续型砂地比数据的互换关系、地震属性与井点砂地比参数的相关性、敏感地震属性的优选等;同时,建立了储层目标砂地比预测模型,并依据模型相关度,选择合适的平面插值算法进行砂地比成图;最后,利用砂地比与薄储层沉积微相的转换模式,结合单井相及沉积背景,获得了相对合理的薄储层单元沉积微相地质成果平面表征图件。通过研究区实际应用与验证,取得了良好的应用效果,也形成了一套较可行的井震联合储层特征精细描述的研究思路与技术流程。At the middle and final stages of oilfield development, fine thin reservoir characterization is highly required, and this inevitable trend makes researchers use both well logging and seismic data and reduce the subjective intervention, and realize semi-quantitative or quantitative description. This paper takes geostatistical analysis and plane interpolation algorithm as a mathematical tool, respectively discusses the transformation relation between discrete sedimentary facies data and continuous sandstone ratio data at well points, the correlation between seismic attributes and well point sandstone ratio, and sensitive seismic attribute optimization. At the same time, a prediction model for sandstone ratio is established, and an appropriate planar interpolation is selected to map sandstone ratio contour based on the correlation coefficient of the model. Then, combined with single well facies and sedimentary background, the transformation model of sandstone ratio and sedimentary microfacies are used to obtain relatively reasonable geological result map for characterizing thin reservoir sedimentary microfacies. Practical applications and validations in a study area obtain good results, and a more feasible well seismic joint research ideas and technical flow for fine reservoir description are formed. © 2016, Editorial Department OIL GEOPHYSICAL PROSPECTING. All right reserved.

关 键 词：井震联合 薄储层沉积微相 地质统计学 敏感属性优选 平面插值 

分 类 号：P631[天文地球—地质矿产勘探]