窄方位角地震资料在裂缝储层预测中的应用
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摘要
针对窄方位地震采集中裂缝检测难题,通过远近偏移距属性差异地震正演和方位地震属性差异的地震正演,模拟得到针对窄方位地震采集区块的叠前裂缝储层预测方法;利用JZ油田叠前地震资料中的远近偏移距信息、方位地震信息,通过远近偏移距属性差和方位地震属性差,并综合叠前弹性参数反演和应力场模拟等技术方法,对裂缝储层进行预测。预测结果在后验井中得到了证实。
The detection method for fractured reservoirs using narrow-azimuth seismic acquisition data is acquired through seismic forward simulations in this paper.In fractured reservoirs,FUL_FRQ attribute difference between near and far offsets is larger than it is in non-fractured strata.Attribute difference exists in different azimuth seismic data.Based on this,the integrated prediction for fractured reservoirs in JZ oilfield was realized combined with pre-stack elastic parameters inversion and stress field simulation.Results from this method were conformed in following drilled development wells.
引文
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