复杂构造地震资料成像新技术的开发应用
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摘要
针对辽河油区复杂构造区地震资料介质速度横向变化快和信噪比低的特点,开展了基于波动方程理论的炮域保幅叠前深度偏移技术和共反射面元(CRS)技术研究。并将这2项新技术应用于辽河断陷复杂构造区低信噪比地震资料成像,实际应用取得了较好的处理效果,为辽河油田小断块、微幅度复杂构造和深层、凹陷两侧油气勘探地质研究提供了可靠的依据。
The seismic data of complex structures in Liaohe oilfield is characterized by fast lateral change of media velocity and low signal-to-noise ratio. Based on wave equation theory, preserved amplitude prestack depth migration within shot domain and bin (CRS) techniques have been studied. These 2 new techniques have been used for imaging seismic data of low signal-to-noise ratio in complex structures of Liaohe depression and have obtained good processing result, thus providing reliable basis for geological study in oil and gas exploration in small fault blocks, mini-amplitude complex structure, deep formation, and depression flanks in Liaohe oilfield.
The seismic data of complex structures in Liaohe oilfield is characterized by fast lateral change of media velocity and low signal-to-noise ratio. Based on wave equation theory, preserved amplitude prestack depth migration within shot domain and bin (CRS) techniques have been studied. These 2 new techniques have been used for imaging seismic data of low signal-to-noise ratio in complex structures of Liaohe depression and have obtained good processing result, thus providing reliable basis for geological study in oil and gas exploration in small fault blocks, mini-amplitude complex structure, deep formation, and depression flanks in Liaohe oilfield.
引文
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[5]宋宏文,张文坡,郭平·老油田复杂地区地震资料处理技术研究[A]·张方礼主编·辽河油田勘探开发优秀论文集(2006)[C]·北京:石油工业出版社,2006:161~171·
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[9]周锦明,熊翥·地震数据精细处理[M]·北京:石油工业出版社,2003:12~23·
[10][美]渥·伊尔马滋·地震数据处理[M]·北京:石油工业出版社,1994:293~294·
[2][美]渥·伊尔马滋·地震资料处理、反演和解释[M]·北京:石油工业出版社,2006:371~469·
[3]郭平,宋宏文,张文坡,舒良树,等·辽河油田大民屯凹陷地震资料的成像技术[J]·石油地球物理勘探,2006,41(1):62~66·
[4]张文坡,郭平,等·复杂构造及深层目标处理技术的应用和效果[A]·中国石油天然气股份有限公司勘探与生产分公司·地震资料处理技术交流会论文集[C]·北京:石油工业出版社,2002:63~78·
[5]宋宏文,张文坡,郭平·老油田复杂地区地震资料处理技术研究[A]·张方礼主编·辽河油田勘探开发优秀论文集(2006)[C]·北京:石油工业出版社,2006:161~171·
[6]扬锴,罗卫东·基于广义Radon变换的共反射面元叠加方法[J]·天然气工业,2006,26(6):50~54·
[7]Rainer Jager·Common-reflection-surface stack:Image and attributes[J]·Geophysics,2001,66(1):97~109·
[8]洪菲,胡天跃,张文坡,等·用优化聚束滤波方法消除低信噪比地震资料中的多次波[J]·地球物理学报,2004,47(6):1106~1110·
[9]周锦明,熊翥·地震数据精细处理[M]·北京:石油工业出版社,2003:12~23·
[10][美]渥·伊尔马滋·地震数据处理[M]·北京:石油工业出版社,1994:293~294·
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