不同厚度致密砂岩含气储层AVO响应特征分析
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摘要
随着常规油气资源量的日愈减少,致密砂岩油气藏的勘探开发已引起人们的高度重视,这类非常规的气藏在目前的气藏开发中占据着重要地位。解决问题的思路是以AVO技术为核心,在通过正演模拟的研究,总结出不同厚度致密砂岩的AVO响应特征,划分出含气砂岩的类型,进行有效的含气预测。AVO是通过对叠前地震资料振幅随偏移距的变化特征和规律进行分析,进而对油气储层流体的性质、储层岩性做出预测和判断的一项地震资料处理、解释技术。
With the day-by-day decrease of routine petroleum resources,reserves exploratory development of tight sand oil and gas reservoir attracts people high opinion,the unconventional oil and gas reservoir occupies important part in currently oil and gas reservoir development.The method to resolve the above questions is looking AVO technique as vital part,summing up tight sand AVO respond characteristic,classifying gas sand,and running effective gas prediction through AVO forward modeling research.AVO(Amplitude versus offset) is a technique of processing and interpreting seismic data,through anglicizing the characteristics and laws of pre-stack seismic data amplitude changing versus offset,and thus making prediction and judgments on the nature、reservoir lithology of reservoir fluids.
引文
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