松辽盆地南部低渗透储层测井地质学及其应用研究

发布时间：2018-01-29 16:36

本文关键词： 低渗透储层层序地层测井沉积微相测井解释模型油水层测井解释　出处：《中国石油大学(华东)》2015年硕士论文　论文类型：学位论文

【摘要】：松辽盆地南部葡萄花油层低渗透油藏储层非均质性强,油水关系复杂。为此,本文根据大情字井地区低渗透储层地质特征,通过对其开展测井地质学研究,明确了研究区沉积特征和储层特征,最终实现了储层物性参数的求取及流体性质的识别,对研究储层非均质性、揭示油气不均一分布特征、指导油气勘探开发具有重要指导意义。本文充分利用岩心及测井资料,井震结合,根据层序地层学、沉积旋回理论和标志层特征,建立了葡萄花油层等时层序地层格架;在此基础上,进行了沉积特征研究,建立了研究区网状河三角洲的沉积模式,明确了各沉积微相与测井曲线的岩电对应关系,并对沉积微相展布特征进行了研究,同时运用主成分分析法对研究区岩性进行了识别。通过对研究区储层地质研究,明确了研究区低渗透储层的成因;在此基础上,建立了适合研究区的孔隙度及渗透率解释模型,对全区低渗透储层进行了物性参数解释;运用改进的交会图法对研究区低渗透储层流体性质进行了识别,建立了适合研究区的油水层识别标准,对油水层进行了测井地质综合解释,揭示了油水关系;在上述研究的基础上,结合生产动态资料,参考现代沉积模式,指出了有利储层发育部位—网状河岔道口。
[Abstract]:In the south of Songliao Basin, the reservoir heterogeneity is strong and the oil-water relationship is complex. Therefore, according to the geological characteristics of low permeability reservoir in Daxing Zijing area, the logging geology is carried out in this paper. The sedimentary characteristics and reservoir characteristics in the study area are defined. Finally, the calculation of reservoir physical parameters and the identification of fluid properties are realized, and the heterogeneity of oil and gas is revealed for the study of reservoir heterogeneity. It is of great significance to guide the exploration and development of oil and gas. This paper makes full use of core and logging data and combines well and earthquake, according to sequence stratigraphy, sedimentary cycle theory and marker layer characteristics. The isochronous sequence stratigraphic framework of Grape flower reservoir is established. On this basis, the sedimentary characteristics are studied, the sedimentary model of the reticular river delta in the study area is established, and the corresponding relationship between the sedimentary microfacies and the logging curve is determined. The characteristics of sedimentary microfacies distribution are studied, and the lithology of the study area is identified by principal component analysis. Through the study of reservoir geology, the origin of low permeability reservoir in the study area is determined. On this basis, the porosity and permeability interpretation model suitable for the study area is established, and the physical property parameters of the low permeability reservoir in the whole area are interpreted. By using the improved cross plot method, the fluid properties of low permeability reservoir in the study area are identified, the identification standard of oil-water layer suitable for the study area is established, the log geological comprehensive interpretation of oil-water layer is carried out, and the oil-water relationship is revealed. On the basis of the above research, combined with the production dynamic data and referring to the modern sedimentary model, this paper points out the favorable reservoir development position-reticular river forks.
【学位授予单位】：中国石油大学(华东)
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：P618.13;P631.81

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