高台子油田高2、3断块井震结合储层研究
发布时间：2018-07-14 14:43
【摘要】：随着油气资源勘探开发程度的加深,对储层及油藏描述的精度也提出了更高的要求。“井震结合”作为一种重要的储层预测方法,已经在很多油田得到应用,并已发展成为井间河道砂体预测不可或缺的技术手段。受地震资料垂向分辨率的制约,井震结合储层预测的方法和技术手段还不成熟。如何提高储层预测的精度及储层级别是目前亟待解决的问题。高台子油田高2、3断块葡萄花油层主要发育三角洲前缘水下分流河道砂体,砂体薄,河道窄,井网对河道的控制程度低,井间砂体预测依赖地震资料;同时该区隔层条件较好,砂地比低,储层呈“泥包砂”结构,适合利用地震资料进行储层预测的理论研究。因此本文选择高台子油田高2、3断块进行井震结合的储层预测研究具有实际意义及理论意义。论文从建立研究区高分辨率层序格架入手,剖析了储层沉积微相发育特征,研究了河道宽度,砂岩厚度、隔层条件、垂向地层结构等储层基本地质条件,并在此基础上,建立了研究区相应的正演模型;详细介绍了正演模拟技术、地震属性分析技术和地震反演技术的基本理论;利用上述模型进行正演,分析了储层与地震波反射特征之间关系,深入研究了隔层厚度、砂岩厚度、邻层垂向干扰等储层条件对于井震结合储层预测效果的影响,并给出最适合井震结合储层预测的储层条件。同时,对90度相位转换技术在研究区的预测效果进行了验证。最后进行了反演资料储层预测技术的应用研究,从基础资料处理、关键参数选取和反演结果质控三个方面论述了稀疏脉冲联合地质统计学反演技术及其储层预测的效果。在上述研究的基础上,最终总结出“以测井相为约束,按储层条件分类,正演+地震属性+反演相结合,重点刻画优势储层,预留后验井验证”的井震结合储层预测方法。
[Abstract]:With the deepening of exploration and development of oil and gas resources, higher requirements for the accuracy of reservoir and reservoir description are put forward. As an important reservoir prediction method, "well and earthquake combination" has been applied in many oil fields and has developed into an indispensable technical means for cross-well channel sand body prediction. Restricted by the vertical resolution of seismic data, the method and technical means of combining well and earthquake with reservoir prediction are immature. How to improve the accuracy of reservoir prediction and reservoir level is an urgent problem to be solved. The Putaohua reservoir of Gao2Guan3 fault block in Gaotaizi Oilfield mainly developed delta front underwater distributary channel sand body, thin sand body, narrow channel, low well pattern control over the channel, cross-well sand body prediction depends on seismic data, and the interlayer condition in this area is good. The sand to soil ratio is low and the reservoir is of "mud-wrapped sand" structure, which is suitable for the theoretical study of reservoir prediction using seismic data. Therefore, it is of practical and theoretical significance to study the reservoir prediction combined with well and earthquake in Gaotaizi Oilfield. Starting with the establishment of high resolution sequence framework in the study area, this paper analyzes the characteristics of sedimentary microfacies, studies the basic geological conditions of reservoir, such as channel width, sandstone thickness, interlayer condition, vertical stratigraphic structure, etc. The corresponding forward modeling of the study area is established, the basic theory of forward modeling, seismic attribute analysis and seismic inversion is introduced in detail, and the relationship between reservoir and seismic wave reflection characteristics is analyzed by using the above model. The effects of reservoir conditions such as interval thickness sandstone thickness and vertical interference of adjacent layers on the prediction effect of well shock combined reservoir are studied and the reservoir conditions which are most suitable for well shock combined reservoir prediction are given. At the same time, the prediction effect of 90 degree phase conversion technique in the study area is verified. Finally, the application of inversion data reservoir prediction technology is studied, and the effect of sparse pulse combined geostatistical inversion technique and reservoir prediction is discussed from three aspects: basic data processing, selection of key parameters and quality control of inversion results. On the basis of the above research, the prediction method of combined well and earthquake reservoir is concluded, which is based on logging facies, classified according to reservoir conditions, combined with forward seismic attribute inversion, focusing on the description of dominant reservoirs and reserving post-well validation.
【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
[Abstract]:With the deepening of exploration and development of oil and gas resources, higher requirements for the accuracy of reservoir and reservoir description are put forward. As an important reservoir prediction method, "well and earthquake combination" has been applied in many oil fields and has developed into an indispensable technical means for cross-well channel sand body prediction. Restricted by the vertical resolution of seismic data, the method and technical means of combining well and earthquake with reservoir prediction are immature. How to improve the accuracy of reservoir prediction and reservoir level is an urgent problem to be solved. The Putaohua reservoir of Gao2Guan3 fault block in Gaotaizi Oilfield mainly developed delta front underwater distributary channel sand body, thin sand body, narrow channel, low well pattern control over the channel, cross-well sand body prediction depends on seismic data, and the interlayer condition in this area is good. The sand to soil ratio is low and the reservoir is of "mud-wrapped sand" structure, which is suitable for the theoretical study of reservoir prediction using seismic data. Therefore, it is of practical and theoretical significance to study the reservoir prediction combined with well and earthquake in Gaotaizi Oilfield. Starting with the establishment of high resolution sequence framework in the study area, this paper analyzes the characteristics of sedimentary microfacies, studies the basic geological conditions of reservoir, such as channel width, sandstone thickness, interlayer condition, vertical stratigraphic structure, etc. The corresponding forward modeling of the study area is established, the basic theory of forward modeling, seismic attribute analysis and seismic inversion is introduced in detail, and the relationship between reservoir and seismic wave reflection characteristics is analyzed by using the above model. The effects of reservoir conditions such as interval thickness sandstone thickness and vertical interference of adjacent layers on the prediction effect of well shock combined reservoir are studied and the reservoir conditions which are most suitable for well shock combined reservoir prediction are given. At the same time, the prediction effect of 90 degree phase conversion technique in the study area is verified. Finally, the application of inversion data reservoir prediction technology is studied, and the effect of sparse pulse combined geostatistical inversion technique and reservoir prediction is discussed from three aspects: basic data processing, selection of key parameters and quality control of inversion results. On the basis of the above research, the prediction method of combined well and earthquake reservoir is concluded, which is based on logging facies, classified according to reservoir conditions, combined with forward seismic attribute inversion, focusing on the description of dominant reservoirs and reserving post-well validation.
【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
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