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
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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.
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.
引文
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[6]黄安敏,裴建翔,陈志宏,等.油气储层预测技术在琼东南盆地BD13区的应用[J].天然气地球科学,2006,17(4):518-522.
[7]高建虎,雍学善,刘洪.频率域储层预测技术研究[J].天然气地球科学,2007,18(6):808-812.
[2]王玉梅,季玉新,李东波,等.应用地震属性技术预测A地区储层[J].石油物探,2001,40(4):69-76.
[3]黄绪德,袁明德,等.地震数据处理[M].北京:石油工业出版社,1994.
[4]李在光,杨占龙,刘俊田,等.多属性综合方法预测含油气性及其效果[J].天然气地球科学,2006,17(5):727-730.
[5]胡光义,王加瑞,武士尧.利用地震分频处理技术预测河流相储层[J].中国海上油气,2005,17(4):237-241.
[6]黄安敏,裴建翔,陈志宏,等.油气储层预测技术在琼东南盆地BD13区的应用[J].天然气地球科学,2006,17(4):518-522.
[7]高建虎,雍学善,刘洪.频率域储层预测技术研究[J].天然气地球科学,2007,18(6):808-812.
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