【摘要】 时移地震属性分析是现代油气藏动态监测和评价的一种重要的手段。本文利用永安镇油田Y3断块地区的实际四维地震、地质、测井、岩心、生产动态等数据,首先消除非油气藏对地震属性的影响因素,然后在岩石物理分析和地震正演的基础上,提取合适时移属性,对不同时间采集数据提取的叠后属性进行优化处理,开展时移前后差异属性和属性差异的提取和优化分选技术研究,最后总结归纳出时移前后反映油藏变化的敏感属性,并结合研究区已有的地震勘探以及油气藏信息,对目的储层的剩余油分布进行展布预测,研究出适用于该地区时移地震的综合属性分析技术。更多还原

【Abstract】 Time-lapse seismic attributes analysis is a promising method for hydrocarbon dynamic detection and evaluation.In this paper,the practical time-lapse seismic data,well data,the well drilling geology data and exploitation dynamic documents of Y3 fault block in Yong’an Oilfield are used.This research firstly eliminates the influence factors of non-oil and gas reservoir on seismic attributes.Then based on rock physics analysis and seismic forward modeling,right time-lapse seismic attributes are extracted and the post stack attributes of seismic data at different time are optimized.Meanwhile,extraction and optimization study of the difference attributes and differences in attributes before and after the time lapse are carried out.Finally,sensitive attributes of reflecting reservoir change are summarized.Combined with the seismic exploration and reservoir information,the distribution of remaining oil of the target reservoir is predicted,and the comprehensive attributes analysis technique in time-lapse seismic is concluded.更多还原