【摘要】 地震波阻抗反演在储层预测中发挥了重要作用,它是确保地震数据、测井曲线、速度和地质信息正确综合的首要技术。地震反演的方法很多,对当前石油工业界常用的5种地震波阻抗反演方法的技术关键、适用性进行了分析和对比。由于受地震资料、地质条件和勘探开发程度的制约,现有波阻抗反演方法各具适应性,并不能很好地解决油田储层地震预测问题。为此,提出了一种新的工作思路——三阶段、九步骤反演方法。应用该方法在松辽盆地GLB地区PTH油层的勘探部署和储量评价中取得较好效果,可预测1~2 m薄储层,对于国内类似地质条件的薄储层预测具有一定的借鉴意义。更多还原

【Abstract】 In recent years,seismic wave impedance inversion method plays an important role in reservoir prediction,which are the primary technology to ensure the proper integration of seismic data,well-logs,velocity and geological information.In this paper,we have overall analyzed and contrasted of the key technology and applicability of five types seismic wave impedance inversion methods commonly used in petroleum industry.Existing wave impedance inversion methods have different applicability,and there are the problems of seismic oil reservoir prediction due to the restriction of seismic data quality,geological condition,exploitation degree.These problems could not be preferably solved.Furthermore,we presented a thought for seismic inversion called three stages and nine steps inversion method.With this method,the good effects of appliance are acquired in exploration deployment and reserve evaluation of PTH oil layer in GLB of Songliao basin,and 1-2 m thin reservoir could be predicted.This method has some significances for reference to prediction of the thin reservoirs with similar geological conditions in China.更多还原