地震数据体的频率信息在岩性预测中的应用--以松辽盆地孤店地区泉四段为例  

Application of the Frequency Information of Seismic Data in Predicting Sandstone Reservoirs

作　　者：刘彦君[1] 国洪伟[2] 马朋善[3] 宋炜[4] 

机构地区：[1]中国地质大学,北京100083 [2]吉林油田公司勘探开发研究院,吉林松原138000 [3]中国石油勘探开发研究院,北京100083 [4]石油大学(北京),北京102249

出　　处：《天然气地球科学》2008年第2期266-271,共6页Natural Gas Geoscience

基　　金：国家“973”项目“地震分频技术在港东1区开发中的应用研究”(编号:2005CB221306)资助

摘　　要：地震数据体中含有能够反映地质情况的丰富地震信息,如振幅、频率、相位、波形等,用其可以有效地进行储层预测。主要对频率信息的地质解释进行研究,首先在精细频谱分析及分频扫描滤波试验的基础上,研究了不同频率的信号对不同厚度地层的敏感程度,建立了不同频率的调谐振幅与钻井岩性对应关系,然后以此为质量控制手段,对包含多种频率综合响应的地震数据进行分频处理,提取能够有效反映储层的频率信息,作了岩性预测。利用该法对松辽盆地孤店地区主力油层——泉四段进行分频处理,优选了每一目的层的最佳分频体,作了地震属性岩性分析及岩性反演,取得了较好效果。Reservoir geological information can be predicted effectively by abundant geophysical information in seismic data, which include amplitude, frequency, phase, wave, etc. Based on the fine frequency spectrum analysis and the test of filter scan, this paper studies the sensitivity of different frequency signals and different strata thickness and establishes the correlation between drilling lithology and the tune amplitude of different frequencies. Through adjusting different frequency times and processing the frequency spectrum of seismic data, the efficiency frequency can be used to predict lithology effectively in seismic inversion and attributes analysis. By this method, the main oil reservoirs of different layers of the Quan 4 member were successfully predicted and analyzed in the Gudian area.

关 键 词：地震数据体 频率 分频扫描 储层预测 

分 类 号：TE132.14[石油与天然气工程—油气勘探]