齐家地区高台子油层致密油储层测井解释方法

发布时间：2018-03-13 16:35

本文选题：致密油储层　切入点：岩性参数　出处：《东北石油大学》2015年硕士论文　论文类型：学位论文

【摘要】：随着松辽盆地中浅层石油勘探进程的不断推进,勘探开发对象变得日趋复杂,勘探开发的难度也日益增大。为确保大庆油田4000万吨持续稳产,实现储采平衡,致密油已经成为较为现实的勘探突破目标。本次研究的重点对象为齐家地区高台子致密油储层。该区块属于低孔隙度、低渗透率致密砂岩储层,储层的孔隙结构复杂,束缚水饱和度高。本论文基于岩石物理实验、取心、试油、压汞等资料,采用统计直方图和饼状图的方法对该地区的储层岩性特征、物性特征和孔隙结构特征进行了分析,得出齐家地区高台子致密油储层的岩性主要为粉砂岩、含钙粉砂岩和泥质粉砂岩,孔隙度和渗透率均较低,属于致密储层;利用岩心分析数据和测井资料,采用统计和回归分析的方法建立了泥质含量、钙质含量、粘土含量和石英含量计算模型和伊利石、绿泥石计算模型;利用岩心分析数据和测井资料,引入大孔隙度概念,采用多元线性回归的方法建立了孔隙度、渗透率等储层物性参数的测井解释模型;基于该研究区致密储层岩电实验规律和储层特征研究成果,综合考虑了泥质和钙质对岩石导电性的影响,对印度尼西亚方程进行改进,建立了含水饱和度解释模型;针对研究区储层孔隙结构复杂和微孔隙发育的特点,提出了综合利用储层宏尺度和微尺度参数与采油强度结合的方法,建立了致密油储层类别划分标准;编制相应的程序,对密闭取心井和试油井进行处理分析,结果表明,处理结果与密闭取心井和试油井的试油结果一致。实际应用表明,本文建立的测井解释模型可以很好的应用于齐家地区高台子致密油测井解释评价。
[Abstract]:With the continuous advancement of the exploration process in the Songliao Basin, the exploration and development objects become more and more complex, and the exploration and development is becoming more and more difficult. In order to ensure the sustained and stable production of 40 million tons in Daqing Oilfield, the reservoir and production balance can be achieved. Dense oil has become a realistic breakthrough target for exploration. The focus of this study is Gaotaizi tight oil reservoir in Qijia area, which belongs to low porosity and low permeability tight sandstone reservoir, and the pore structure of the reservoir is complex. Based on the data of rock physics experiment, coring, oil testing and mercury injection, the lithologic characteristics, physical properties and pore structure characteristics of reservoir in this area are analyzed by statistical histogram and pie chart. It is concluded that the lithology of Gaotaizi tight oil reservoir in Qijia area is mainly siltstone, calcium bearing siltstone and argillaceous siltstone with low porosity and permeability. The calculation models of clay content, calcium content, clay content and quartz content and the calculation model of Illite and chlorite are established by means of statistics and regression analysis, and the concept of macroporosity is introduced by using core analysis data and logging data. The logging interpretation model of reservoir physical parameters, such as porosity and permeability, is established by multivariate linear regression. Considering the influence of mud and calcium on the conductivity of rock, the Indonesian equation is improved, and the interpretation model of water saturation is established, aiming at the characteristics of complex pore structure and micropore development of reservoir in the study area. The method of combining macroscale and microscale parameters with oil recovery intensity is put forward, and the classification standard of tight oil reservoir is established, and the corresponding program is worked out to deal with closed coring wells and test wells. The results show that, The results are consistent with those of closed coring wells and test wells. The practical application shows that the logging interpretation model established in this paper can be well applied to the interpretation and evaluation of Gaotaizi dense oil logging in Qijia area.
【学位授予单位】：东北石油大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：P618.13;P631.81

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