苏北盆地高邮凹陷阜宁组致密砂岩储层测录井评价方法研究

发布时间：2018-06-17 18:12

本文选题：致密砂岩储层 + 测录井识别　；参考：《西南石油大学》2015年硕士论文

【摘要】：致密砂岩油藏作为一种非常规油气资源,已经成为研究的重点区域。相对于常规油藏物性好、孔渗相关性强的特点,致密砂岩油藏储层的物性差,测井响应特征相对不明显,因此有必要结合录井对致密砂岩油藏的油水层综合评价进行研究。建立一套适用于研究区致密砂岩油气藏储层的测、录井识别技术与方法,以便更好地为油藏探勘开发服务。在地质规律认识的基础上,利用岩心刻度常规测井,分层段总结出各类储层的测井响应特征,建立了不同类型储层的测井识别模式。常规测井能够较容易地划分、识别出研究区较好储层。对于常规测井特征不明显的较差储层,则应结合录井显示资料来综合识别。根据压汞、核磁和水膜厚度等实验分析资料；常规测井资料以及生产动态资料,综合分析来确定了储层参数下限值。在物性参数下限确定的基础上,再结合测井资料确定了储层的电性下限,建立了储层有效性分类评价标准。以岩样孔、渗、饱分析数据,不同温压条件下的岩电测试数据为基础,开展岩心刻度测井,并建立岩石物性参数测井计算模型,其次应用地化录井资料,通过不同取样方式的筛选建立了地化参数测井评价经验公式,最终建立了测井与录井参数之间的关系,且相关性较好。针对致密砂岩油藏储层岩性致密、物性差等特点,在测井响应特征的基础上,结合气测、地化及定量荧光三种录井方法,来综合分析其图谱响应特征及探索适应于研究区的图版方法,以苏北盆地高邮凹陷阜宁组致密砂岩油藏为例,进行综合评价油水层方法研究。在确定的测录井综合评价油水层方法的基础上,对研究区钻井、录井显示好而测井曲线无反映和钻井、录井显示好并且测井曲线也反映好的实例做应用分析,发现此综合评价方法结果与试油资料相吻合。本论文的完成为苏北盆地高邮凹陷阜宁组致密砂岩储层测、录井结合识别及储层有效性评价提供了一套切实可行的方法,同时也为下一步勘探开发提供了更加可靠的测、录井解释依据。
[Abstract]:As an unconventional oil and gas resource, tight sandstone reservoir has become a key area of research. Compared with conventional reservoir, the physical property of tight sandstone reservoir is poor, and the logging response is not obvious. Therefore, it is necessary to study the comprehensive evaluation of oil-water reservoir in tight sandstone reservoir by combining logging with the characteristics of good physical property and strong correlation between pore and permeability. A set of techniques and methods for logging and logging identification of tight sandstone reservoirs in the study area are established in order to better serve reservoir exploration and development. Based on the understanding of geological laws, the logging response characteristics of various reservoirs are summarized by using core calibration routine logging and stratified section, and the logging identification patterns of different types of reservoirs are established. Conventional logging can be easily divided to identify better reservoirs in the study area. For the poor reservoir which is not obvious in the conventional logging data, the logging data should be combined to identify the reservoir comprehensively. According to the experimental data of mercury injection, nuclear magnetic field and water film thickness, conventional logging data and production performance data, the lower limit values of reservoir parameters are determined by comprehensive analysis. Based on the determination of the lower limit of physical parameters and well logging data, the lower limit of electric property of reservoir is determined, and the criteria of classification and evaluation of reservoir effectiveness are established. Based on the sample pore, seepage, saturation analysis data and rock electrical test data under different temperature and pressure conditions, the core calibration logging is carried out, and the log calculation model of rock physical parameters is established. Secondly, geochemistry logging data are used. Through the screening of different sampling methods, the experiential formula of geo-chemical parameter logging evaluation is established, and the relationship between logging and logging parameters is established, and the correlation is good. In view of the characteristics of tight lithology and poor physical properties of tight sandstone reservoir, based on the response characteristics of logging, combined with three logging methods, gas logging, geochemistry and quantitative fluorescence, In order to comprehensively analyze the characteristics of its map response and explore the plate method suitable for the study area, taking the dense sandstone reservoir of Funing formation in Gaoyou depression of Subei Basin as an example, the comprehensive evaluation method of oil-water layer is studied. On the basis of the method of comprehensive evaluation of oil and water layer by logging, the examples of well logging showing well but logging curve not reflecting and drilling, well logging showing well and logging curves reflecting well are analyzed. It is found that the result of this comprehensive evaluation method is in agreement with the test data. The completion of this paper provides a set of feasible methods for logging of dense sandstone reservoir in Funing formation in Gaoyou Sag, Subei Basin, combining logging with identification and evaluation of reservoir effectiveness, and provides a more reliable survey for further exploration and development. Mud logging interpretation basis.
【学位授予单位】：西南石油大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：P618.13;TE142;P631.81

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