低频伴影技术在生物礁油气储层预测中的应用
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摘要
含油气岩石对地震波的能量有衰减作用。当地震纵波穿过含油气地层时,波的能量将产生较大的频率衰减,在储层下方会出现低频强振幅的"低频伴影"现象。在低频率段,"低频伴影"特征明显,"低频伴影"的地震波反射能量较储层的地震波反射能量强。在高频率段,"低频伴影"的地震波反射能量较储层的地震波反射能量弱并随着频率升高逐渐减弱。选择川东北SYB1井区对"低频伴影"技术在生物礁油气储层预测中的应用进行研究,通过SYB1井和SYBc1井两口钻井的应用特征对比,有效结合"低频伴影"技术在含油气储层预测中的识别标志,得出"低频伴影"技术进行生物礁油气储层预测的适应性,证明了方法的正确性,为同类型油气储层预测工作提供参考依据。
Rock with oil and gas can make attenuation to seismic wave. When seismic primary wave goes throw oil and gas formation,it will engender serious attenuation. Then,the low-frequency shadow with character of low frequency and strong amplitude will appear under the reservoir. In low frequency stage,low-frequency shadow is obvious,and the power of seismic reflection wave is stronger than the power of reservoir. In high frequency stage,the power of low-frequency shadow is lower than the power of reservoir and with the frequency goes up,the power weaken. Well SYB1 district as the research objective is choosed to study the application of low-frequency shadow technology in prediction of organic reef oil and gas reservoir. With the comparing of application character of well SYB1 and SYBc1,connected to the identification mark of low-frequency shadow technology in the prediction of oil and gas reservoir,low-frequency shadow technology is suitable in the prediction of organic reef oil and gas reservoir is found out. And the low-frequency shadow technology is valid,which will be the reference frame for the reservoir prediction of the same style is proved.
Rock with oil and gas can make attenuation to seismic wave. When seismic primary wave goes throw oil and gas formation,it will engender serious attenuation. Then,the low-frequency shadow with character of low frequency and strong amplitude will appear under the reservoir. In low frequency stage,low-frequency shadow is obvious,and the power of seismic reflection wave is stronger than the power of reservoir. In high frequency stage,the power of low-frequency shadow is lower than the power of reservoir and with the frequency goes up,the power weaken. Well SYB1 district as the research objective is choosed to study the application of low-frequency shadow technology in prediction of organic reef oil and gas reservoir. With the comparing of application character of well SYB1 and SYBc1,connected to the identification mark of low-frequency shadow technology in the prediction of oil and gas reservoir,low-frequency shadow technology is suitable in the prediction of organic reef oil and gas reservoir is found out. And the low-frequency shadow technology is valid,which will be the reference frame for the reservoir prediction of the same style is proved.
引文
1 Korneev V A,Goloshubin G M,Daley T M,et al.Seismic low-frequency effects in monitoring fluid-saturated reservoirs.Geophysics,2004;69 (2):522—532
2 Goloshubin G M,Korneev V A.Seismic low frequency effects from fluid-saturated reservoir.Expanded Abstracts of 70th Annual Internat SEG Mtg,2000:1671—1674
3 Goloshubin G M,Schuyver C V.Reservoir imaging using low frequency of seismic reflections.The Leading Edge,2006;25(5):527—531
4 He Zhenhua,Xiong Xiaojun,Bian Lien.Numerical simulation of seismic low-frequency shadows and its application.Applied Geophysics,2008;5(4):301—306
5 边立恩,贺振华,黄德济.储层的地震低频响应及识别.石油物探,2008;47(6):573—576
6 陈勇.川东北元坝地区长兴组生物礁储层预测研究.石油物探,2011;50(2):173—180
7 胡伟光,浦勇,赵卓男,等.川东北元坝地区长兴组生物礁的识别.石油物探,2010;49(1):46—53
8 陈勇.川东北礁滩储层地震检测与流体识别研究-以SYB地区为例.成都:成都理工大学,2009
9 黄中玉,王于静,孙显义,等.分频技术在气层识别中的应用.勘探地球物理进展,2008;31(1):73—79
10 尹陈,贺振华,黄德济.基于波动方程的地震波衰减理论研究及应用.成都理工大学学报(自然科学版),2008;35(3):263 —267
11 陈祖庆,杨鸿飞,王涛.川东北宣汉—达县地区礁滩相储层地震预测研究.南方油气,2005;18(4):31—36
12 郑天发.海相碳酸盐岩隐蔽油气藏勘探—以川东北地区为例.成都:成都理工大学,2006
13 刘殊,唐建明,马永生,等.川东北地区长兴组—飞仙关组礁滩相储层预测.石油与天然气地质,2006;27(3):332—338
14 张敏知.生物礁地球物理响应特征及储层预测.成都:成都理工大学,2008
15 陈勇,贺振华,黄德济.海相碳酸盐岩礁相隐蔽油气储层解释决策研究.石油天然气学报,2008;30(5):255—258
16 王一刚,张静,杨雨,等.四川盆地东部上二叠统长兴组生物礁气藏形成机理.海相油气地质,1997;5(1/2):145—152
2 Goloshubin G M,Korneev V A.Seismic low frequency effects from fluid-saturated reservoir.Expanded Abstracts of 70th Annual Internat SEG Mtg,2000:1671—1674
3 Goloshubin G M,Schuyver C V.Reservoir imaging using low frequency of seismic reflections.The Leading Edge,2006;25(5):527—531
4 He Zhenhua,Xiong Xiaojun,Bian Lien.Numerical simulation of seismic low-frequency shadows and its application.Applied Geophysics,2008;5(4):301—306
5 边立恩,贺振华,黄德济.储层的地震低频响应及识别.石油物探,2008;47(6):573—576
6 陈勇.川东北元坝地区长兴组生物礁储层预测研究.石油物探,2011;50(2):173—180
7 胡伟光,浦勇,赵卓男,等.川东北元坝地区长兴组生物礁的识别.石油物探,2010;49(1):46—53
8 陈勇.川东北礁滩储层地震检测与流体识别研究-以SYB地区为例.成都:成都理工大学,2009
9 黄中玉,王于静,孙显义,等.分频技术在气层识别中的应用.勘探地球物理进展,2008;31(1):73—79
10 尹陈,贺振华,黄德济.基于波动方程的地震波衰减理论研究及应用.成都理工大学学报(自然科学版),2008;35(3):263 —267
11 陈祖庆,杨鸿飞,王涛.川东北宣汉—达县地区礁滩相储层地震预测研究.南方油气,2005;18(4):31—36
12 郑天发.海相碳酸盐岩隐蔽油气藏勘探—以川东北地区为例.成都:成都理工大学,2006
13 刘殊,唐建明,马永生,等.川东北地区长兴组—飞仙关组礁滩相储层预测.石油与天然气地质,2006;27(3):332—338
14 张敏知.生物礁地球物理响应特征及储层预测.成都:成都理工大学,2008
15 陈勇,贺振华,黄德济.海相碳酸盐岩礁相隐蔽油气储层解释决策研究.石油天然气学报,2008;30(5):255—258
16 王一刚,张静,杨雨,等.四川盆地东部上二叠统长兴组生物礁气藏形成机理.海相油气地质,1997;5(1/2):145—152
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