【摘要】 在勘探后期或油田开发阶段,认清小断层的分布对油田注采井设计、产能建设、油藏管理和油藏挖潜等的落实具有极为重要的意义.受地震资料分辨率的限制,用常规的地震资料解释方法进行小断层的识别很难达到油田生产需求,为此,本文根据研究区储层不同厚度、物性特点,以测井、地震、地质统计为基础,设计了薄层、厚层和不等厚互层三种储层不同断距断层的地质模型,在此基础上综合应用模型正演、频谱分解和相干分析方法建立了小断层的识别标志.通过在Y地区的实际应用,证明这种方法可更有效的识别小断层,并取得了较好的应用效果.更多还原

【Abstract】 In the late stage of exploration and phase of development of oilfield,it is very important to recognizing distribution of small fault for the injection-production wells design,the construction of productivity of oilfield and reservoir management and tapping potentials etc.Because of limit of the seismic data resolution,it is difficult to achieve oilfield production capacity needs with the conventional method of seismic data interpretation to recognize small fault.Therefore as the foundation of well logging and seismic data and geological statistics,this article designs three different geologic model of fault with different fault throw about the thin layer,thick layer and interbedded layer of unequal thickness according to the reservoir different thickness and physical properties characteristic in the researched area.On the basis,with the method of comprehensive forward modelling,spectral decomposition and coherent analysis found the identification mark of small fault.Through the practical application in the Y area,we have proven that the method can recognize small faults more effectively,and achieved good application effect.更多还原