分频相位分析技术在断层解释中的应用
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摘要
相干技术通常是识别断层的常用方法,但在实际勘探过程中,常规的相干分析技术在识别复杂地质条件下的断裂系统有一定的不适应性。对此,本文开发了分频相位技术来解决常规相干的不适应性,利用分频突出断层响应的最优势频带,和相位对地层产状变化敏感的特点,克服了传统相干对垂向断距小的断层识别能力不足的问题。并将该技术应用在上海平湖地区及辽东地区,证实了分频相位技术针对具体的目标研究区其优势频率的断层分布特征具有其独特的作用。
Coherence technology is the commonly used method to identify fault,but in the actual process of exploration,the conventional coherence analysis technique has its certain inadaptability in the identification of fracture system under the complex geological conditions.So this paper developed a phase frequency division technique to resolve the inadaptability of conventional coherence.Making use of the best frequency band of the fault response and the characteristics of the sensitivity of the coherence to the changes of the formation,it overcame the problem of lacking the ability of identifying the traditional coherence on the vertical fault.The technique is applied to Pinghu area in Shanghai and East Liaodong area,which proved that the frequency division phase technology played a unique role in the fault distribution of dominant frequency for the specific target area.
Coherence technology is the commonly used method to identify fault,but in the actual process of exploration,the conventional coherence analysis technique has its certain inadaptability in the identification of fracture system under the complex geological conditions.So this paper developed a phase frequency division technique to resolve the inadaptability of conventional coherence.Making use of the best frequency band of the fault response and the characteristics of the sensitivity of the coherence to the changes of the formation,it overcame the problem of lacking the ability of identifying the traditional coherence on the vertical fault.The technique is applied to Pinghu area in Shanghai and East Liaodong area,which proved that the frequency division phase technology played a unique role in the fault distribution of dominant frequency for the specific target area.
引文
[1]周艳辉,高静怀,陈文超.检测地震不连续性结构的多分辨率局部结构熵算法[J].西安交通大学学报,2008,42(2):226~230.
[2]朱庆荣,黄雁琳,王敦则.复杂断层快速三维体解释方法[J].石油物探,2003,42(4):456~459.
[3]刘传虎.地震相干分析技术在裂缝油气藏预测中的应用[J].石油地球物理勘探,2001,36(2):238~243.
[4]柏冠军.三维地震资料微机管理及可视化解释系统研究与开发[D].西安:西北大学,2006.
[5]毕俊凤.优势频带分频相位分析技术的应用[J].工程地球物理学报,2008,5(2):192~195.
[6]柏冠军,赵汝敏,杨松岭,等.优势频带相位分析技术在AA区块断层解释中的应用[J].石油物探,2011,50(5):513~516.
[7]王彦君,雍学善,刘应如,等.小断层识别技术研究及应用[J].勘探地球物理进展,2007,30(2):135~139.
[8]熊翥.隐蔽油气藏勘探-地震数据处理与解释[J].勘探地球物理进展,2004,27(6):393~394.
[2]朱庆荣,黄雁琳,王敦则.复杂断层快速三维体解释方法[J].石油物探,2003,42(4):456~459.
[3]刘传虎.地震相干分析技术在裂缝油气藏预测中的应用[J].石油地球物理勘探,2001,36(2):238~243.
[4]柏冠军.三维地震资料微机管理及可视化解释系统研究与开发[D].西安:西北大学,2006.
[5]毕俊凤.优势频带分频相位分析技术的应用[J].工程地球物理学报,2008,5(2):192~195.
[6]柏冠军,赵汝敏,杨松岭,等.优势频带相位分析技术在AA区块断层解释中的应用[J].石油物探,2011,50(5):513~516.
[7]王彦君,雍学善,刘应如,等.小断层识别技术研究及应用[J].勘探地球物理进展,2007,30(2):135~139.
[8]熊翥.隐蔽油气藏勘探-地震数据处理与解释[J].勘探地球物理进展,2004,27(6):393~394.
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