大情字井油田北部葡萄花油层流体识别方法

发布时间：2018-10-11 10:43

【摘要】：论文研究工区地处吉林大情字井油田北部。研究层系为葡萄花油层。该油层在研究工区虽然是兼探层系,但随着勘探开发的不断深入,葡萄花油层已经成为保证大情字井油田稳产的重要保障。由于研究工区葡萄花油层流体分布情况复杂、研究资料欠缺、测井系列繁杂、测井解释难度大,因此急需对葡萄花油层展开流体识别工作。论文在对工区进行测井资料预处理及标准化的基础上,建立了有效储层的划分标准,并在有效储层范围内研究工区葡萄花油层的储层“四性”关系。之后建立储层测井二次解释模型。在精确计算储层参数的基础上,结合流体识别图版对工区内储层采用定性和定量结合的方法进行流体识别。针对工区内存在低阻油层的特点,在流体识别过程中,简要的分析了工区内低阻油层的成因。最后在流体识别的基础上明确研究区油水分布规律,并预测研究工区的有利区。论文在进行测井二次解释渗透率模型建立时,根据研究区孔渗关系的特点,采用分段分析的方法,对工区内渗透率进行求解,并定义泥质校正孔隙度:在泥质砂岩孔隙中,去掉泥质含量影响后所得到的孔隙度。提高了测井渗透率解释的精度。为进行流体识别提供了有效的参数。通过综合研究分析,论文明确了研究区葡萄花油层流体分布规律、储层“四性”关系、低阻油层的形成原因及油藏类型等油田发展所需解决的问题,为油田勘探开发提供了可靠的依据。
[Abstract]:The research area of this paper is located in the northern part of Daqing oil field in Jilin province. The study layer is grape flower reservoir. Although the reservoir is a system of exploration and exploration in the research area, with the development of exploration and development, the Putaohua reservoir has become an important guarantee to ensure the stable production of Dazhengzjing oilfield. Because of the complexity of fluid distribution, the lack of research data, the complicated logging series and the difficulty of logging interpretation in the study area, it is urgent to carry out fluid identification work on the Grape flower reservoir. On the basis of preprocessing and standardization of logging data in the working area, the classification standard of effective reservoir is established in this paper, and the relationship of "four properties" of the reservoir in Gaohua reservoir is studied within the effective reservoir scope. Then the secondary interpretation model of reservoir logging is established. On the basis of accurate calculation of reservoir parameters, combined with fluid identification chart, the qualitative and quantitative methods are used to identify the reservoir in the working area. In view of the characteristics of low resistivity reservoir in the working area, the cause of formation of the low resistivity oil layer in the working area is analyzed briefly in the process of fluid identification. Finally, on the basis of fluid identification, the distribution of oil and water in the study area is determined, and the favorable area in the study area is predicted. In this paper, the permeability model of logging secondary interpretation is established, according to the characteristics of pore and permeability relationship in the study area, the permeability in the working area is solved by using the method of subsection analysis, and the corrected porosity of shale is defined: in the pore of argillaceous sandstone, The porosity obtained by removing the influence of mud content. The precision of logging permeability interpretation is improved. It provides effective parameters for fluid identification. Through comprehensive research and analysis, the paper clarifies the fluid distribution law of Putaohua reservoir, the relationship of "four properties" of reservoir, the formation reason and reservoir type of low resistivity reservoir, and so on, and the problems that need to be solved in the development of oil field. It provides a reliable basis for oil field exploration and development.
【学位授予单位】：东北石油大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：P618.13

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