基于地震属性分析预测河道砂体
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摘要
河道砂体储集体是预测油气储层的重要指标,地震波属性对含油气检测具有非常重要的研究意义。通过对不同地震属性的提取与分析,找出对河道砂体预测有效的参数,运用到含油气检测中。着重对相位、曲率、瞬时吸收系数Q属性进行分析,进而预测河道位置以及河道砂体发育等地质信息,同时判断河道砂体的沉积环境。分析结果证明了地震波属性在河道砂体储集区检测中的有效性。
Channel sands are important oil and gas reservoirs. The seismic wave attribute is very important for oil and gas detection. Through the extraction and analysis of different seismic attributes, the effective parameters for prediction of channel sand bodies are found and are applied to oil and gas detection. The phase, curvature and instantaneous absorption coefficient Q are analyzed to predict the location of the channel and the development of the channel sand body and to judge the sedimentary environment of the channel sand body meanwhile. The results show the validity of seismic wave attribute in detecting the reservoir area of channel sand body.
Channel sands are important oil and gas reservoirs. The seismic wave attribute is very important for oil and gas detection. Through the extraction and analysis of different seismic attributes, the effective parameters for prediction of channel sand bodies are found and are applied to oil and gas detection. The phase, curvature and instantaneous absorption coefficient Q are analyzed to predict the location of the channel and the development of the channel sand body and to judge the sedimentary environment of the channel sand body meanwhile. The results show the validity of seismic wave attribute in detecting the reservoir area of channel sand body.
引文
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[3]郭华军,刘庆成.地震属性技术的历史、现状及发展趋势[J].物探与化探,2008,32(1):19-22.
[4]代瑜.叠后地震属性在温米油田三间房组储层描述中的应用[D].中国石油大学,2010.
[5]倪凤田.基于地震属性分析的储层预测方法研究[D].中国石油大学(华东),2009.
[6]张进铎.地震解释技术现状及发展趋势[J].地球物理学进展,2006,21(2):78-87.
[7]金振奎,齐聪伟,薛建勤等.柴达木盆地北缘侏罗系沉积相[J].古地理学报,2006,8(2):199-210.
[8]祝贺.塔里木盆地塔北-塔中地区三叠系沉积、层序地层特征及生储盖组合研究[D].成都理工大学,2011.
[9]陈优阔.基于核方法的煤层厚度变化预测模型及应用研究[D].中国矿业大学,2016.
[10]张树林.计算Q值的七种方法比较[J].国外油气勘探,1991,36(6).