利用测井资料研究沉积相与储层非均质性

发布时间：2018-03-29 22:01

本文选题：沉积环境　切入点：储层特征　出处：《长安大学》2015年硕士论文

【摘要】：研究区长9储层位于鄂尔多斯盆地JY地区东部,属于低孔低渗储层,具有较大的开发潜力。该地区油藏的形成很大程度上受沉积环境的影响,而油藏的开发又受到储层非均质性的控制。因此为了能够制定合理的开发政策,对长9油藏进行合理而高效的开发,对长9储层展开了沉积相与储层非均质性的研究。本文首先应用层序地层学等原理对长9储层进行精细的地层划分与对比,建立全区的等时地层骨架;在此基础上,以JY地区长9地层的区域沉积背景为依据,结合沉积相的各种沉积标志及测井相标志对该地区展开沉积环境的识别,并绘制长9各小层的沉积微相平面图来研究各沉积微相在研究区的分布特征;通过在各沉积微相区域进行取芯,从微观方向具体分析了长9储层的岩石学特征及孔隙结构特征,利用阴极发光、扫描电镜以及铸体薄片的分析方法对研究区成岩相类型进行识别,并绘制了各种成岩相在平面上的分布图,以研究长9储层的成岩作用;储层非均质性是受沉积作用和成岩作用的双重控制的,结合长9沉积相与储层特征的研究成果,利用长9各小层的渗透率数据、含油性数据、层间隔层厚度及层内夹层厚度等数据,计算各种储层非均质参数,绘制各类能够反映储层差异性质的图件,对长9各小层展开层间、平面及层内非均质性的研究。
[Abstract]:Chang 9 reservoir is located in the eastern JY area Ordos basin belongs to low porosity and low permeability reservoir, has great potential for development. The formation is largely influenced by the sedimentary environment in the area of the reservoir, and the reservoir development is controlled by reservoir heterogeneity. So in order to develop a reasonable development policy, development reasonable and efficient for the long 9 reservoir of Chang 9 reservoir of reservoir heterogeneity of the sedimentary facies and reservoir. Firstly, application of sequence stratigraphy principle of fine stratigraphic classification and correlation of Chang 9 reservoir, stratigraphic framework is established in the region; on this basis, the regional sedimentary background with JY area 9 on the basis of the formation of various sedimentary facies, sedimentary and logging facies identification on sedimentary environment of the area, and draw the 9 layer of the small sedimentary microfacies of the sedimentary microfacies in the study The distribution characteristics of the core area; through the sedimentary facies area, analyzes the petrological characteristics and pore structure characteristics of Chang 9 reservoir from the microcosmic direction, using cathodoluminescence, scanning electron microscopy and analysis method of casting slice identification of diagenetic facies in the study area, and all kinds of diagenetic facies in the plane the distribution maps of the diagenesis of Chang 9 reservoir; reservoir heterogeneity is controlled by both sedimentation and diagenesis, with 9 sedimentary facies and reservoir characteristics of the research results, using 9 permeability data of each small layer, interlayer thickness and oil content data the interlayer thickness data layer, calculating the reservoir parameter, drawing all kinds of maps can reflect the differences of reservoir properties, 9 layers of expansion between layers, on the plane and in layer heterogeneity.

【学位授予单位】：长安大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：P618.13;P631.81

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