陆相薄互层油藏多波联合属性分析与油气检测
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摘要
多波多分量地震能同时得到纵波和转换横波数据资料,所提供的地震信息也成倍地增加。由于岩性和流体的敏感性在纵波、转换横波特征上的差异,二者的地震属性参数出现不同的异常反映;因此,研究纵、横波联合属性的相对变化,可以降低单一纵波属性分析的多解性,得到更为可靠的地下岩性和流体变化的信息。在利用模型正演方法进行纵波、转换横波联合属性理论模拟基础上,对多波属性识别陆相薄互层油藏的可行性、可靠性进行分析,以指导实际资料的应用,在胜利油田垦71区块薄互层砂岩储层及油气预测中取得了较好的应用效果。
Multi-components seismic survey receives P-wave and P-SV converted wave data simultaneously,and the seismic information received are doubled.P-wave and P-SV converted wave have different sensitivity to lithology and fluid that causes seismic attribute anomalies.Therefore,by studying the joint attributes of P-wave and P-SV wave,ambiguity in simple P-wave interpretation will be reduced,and more reliable litholgy and fluid information obtained.Using Multi-components forward modeling of seismic data,the paper discussed the feasibility and reliability of hydrocarbon identification by multi-components seismic joint attributes in terrestrial interbedded thin reservoir in the Ken 71 area of the Shengli oilfield.The results are proved useful for oil and gas prediction.
Multi-components seismic survey receives P-wave and P-SV converted wave data simultaneously,and the seismic information received are doubled.P-wave and P-SV converted wave have different sensitivity to lithology and fluid that causes seismic attribute anomalies.Therefore,by studying the joint attributes of P-wave and P-SV wave,ambiguity in simple P-wave interpretation will be reduced,and more reliable litholgy and fluid information obtained.Using Multi-components forward modeling of seismic data,the paper discussed the feasibility and reliability of hydrocarbon identification by multi-components seismic joint attributes in terrestrial interbedded thin reservoir in the Ken 71 area of the Shengli oilfield.The results are proved useful for oil and gas prediction.
引文
[1]阳飞舟,崔永福,李青.地震属性分类及其应用[J].内蒙古石油化工,2009,2:94-97.
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[7]狄帮让,裴正林,夏吉庄,等.薄互层油藏模型黏弹性波方程正演模拟研究[J].石油地球物理勘探,2009,44(5):622-629.
[8]王秀玲,王延光,孟宪军,等.垦71地区多分量地震资料解释方法研究进展[J].油气地球物理,2007,5(1):35-38.
[2]王咸彬,顾石庆.地震属性的应用与认识[J].石油物探,2004,43(增刊):25-27.
[3]郭华军,刘庆成.地震属性技术的历史、现状及发展趋势[J].物探与化探,2008,32(1):20-22.
[4]张树林.海上多波多分量地震烃类直接检测方法研究及应用[J].物探化探计算技术,2000,22(3):200-206.
[5]王秀玲,王延光,季玉新,等.多分量地震资料在垦71井区的应用研究[J].石油物探,2009,48(3):262-270.
[6]刘军,侯平,魏茂林,等.地震波动力学参数在砂体预测中的应用[J].世界地质,2002,21(2):184-188.
[7]狄帮让,裴正林,夏吉庄,等.薄互层油藏模型黏弹性波方程正演模拟研究[J].石油地球物理勘探,2009,44(5):622-629.
[8]王秀玲,王延光,孟宪军,等.垦71地区多分量地震资料解释方法研究进展[J].油气地球物理,2007,5(1):35-38.
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