高分辨率处理技术在辽河雷家地区碳酸盐岩储层中的应用
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摘要
为了有效识别薄储层,精细刻画小断层,支撑岩性油气藏勘探,以辽河雷家地区湖相碳酸盐岩为例,依托GeoEast系统,应用独立同步扫描邻炮干扰压制、聚束滤波多次波衰减、混合震源资料匹配、地表一致性反褶积、零相位反褶积、经验模态分解高分辨率处理等技术,在保证资料信噪比的基础上,分阶段逐步提高地震资料的分辨率。地震成果剖面在目的层段层间反射信息丰富,有效频带合理拓宽,显著地提升了地震资料品质。
In order to effectively identify thin reservoirs,finely characterize subtle faults,and support lithologic reservoir prediction,we demonstrate in this paper a seismic data processing example in Leijia Area,Liaohe with processing tools provided by GeoEast System.In this area,the exploration target is lacustrine carbonate rock.High-resolution processing techniques of GeoEast System are adopted such as beam multiple suppression,vibroseis data de-blending,surface-consistent deconvolution,zero-phase deconvolution,and empirical modedecomposition.Both the resolution and signal-tonoise ratio(SNR)of the processed seismic data are greatly improved.The data frequency band is reasonably broadened.There is much more target information on the data.The imaging quality of the seismic data has greatly improved in the area.
In order to effectively identify thin reservoirs,finely characterize subtle faults,and support lithologic reservoir prediction,we demonstrate in this paper a seismic data processing example in Leijia Area,Liaohe with processing tools provided by GeoEast System.In this area,the exploration target is lacustrine carbonate rock.High-resolution processing techniques of GeoEast System are adopted such as beam multiple suppression,vibroseis data de-blending,surface-consistent deconvolution,zero-phase deconvolution,and empirical modedecomposition.Both the resolution and signal-tonoise ratio(SNR)of the processed seismic data are greatly improved.The data frequency band is reasonably broadened.There is much more target information on the data.The imaging quality of the seismic data has greatly improved in the area.
引文
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[12] 凌云,俞寿朋,周熙襄.零相位同态反褶积[J].石油地球物理勘探,1995,30(3):299-309.LING Yun,YU Shoupeng,ZHOU Xixiang.Zero-phase homomorphic deconvolution[J].Oil Geophysical Prospecting,1995,30(3):299-309.
[13] Battista B M,Knapp C,McGee T,et al.Application of the empirical mode decomposition and Hilbert-Huang transform to seismic reflection data[J].Geophysics,2007,72(2):29-37.
[14] 李雪英,孙丹,侯相辉,等.基于广义S变换、经验模态分解叠前去噪方法的比较[J].地球物理学进展,2011,26(6):2039-2045.LI Xueying,SUN Dan,HOU Xianghui,et al.Comparison of generalized S transform and empirical mode decomposion in high frequencecy seismic noise suppression[J].Progress in Geophysics,2011,26(6):2039-2045.
[15] Pinnegar R C,Mansinha L.The S-transform with windows of arbitrary and varying shape[J].Geophysics,2003,68(1):381-385.
[2] 俞寿朋.高分辨率地震勘探[M].北京:石油工业出版社,1993,30-32.YU Shoupeng.High Resolution Seismic Survey[M].Petroleum Industry Press,Beijing,1993,30-32.
[3] 黄明忠,李培明,王彦娟.独立同步激发数据两步法邻炮干扰压制技术研究[J].石油物探,2012,51(5):464-468.HUANG Mingzhong,LI Peiming,WANG Yanjuan.Two-step suppressing method for neighboring-shot interference by using vibroseis independent simultaneous shooting data[J].Geophysical Prospecting for Petroleum,2012,51(5):464-468.
[4] 骆飞,石双虎,邓志文,等.可控震源分频同时扫描采集方法实现与应用[J].石油物探,2018,57(1):28-32.LUO Fei,SHI Shuanghu,DENG Zhiwen,et al.Implementation and application of vibroseis acquisition using frequency-separated simultaneous sweep techno-logy[J].Geophysical Prospecting for Petroleum,2018,57(1):28-32.
[5] Huo S,Luo F,Kelamis P G.Simultaneous sources separation via multi-directional vector median filter[C].SEG Technical Program Expanded Abstracts,2009,18:31-35.
[6] 胡天跃.地震资料叠前去噪技术的现状与未来[J].地球物理学进展,2002,17(2):218-223.HU Tianyue.The current situation and future of seismic data prestack noise attenuation techniques[J].Progress in Geophysics,2002,17(2):218-223.
[7] 胡天跃,王润秋,温书亮.聚束滤波法消除海上地震资料的多次波[J].石油地球物理勘探,2002,37(1):18-23.HU Tianyue,WANG Runqiu,WEN Shuliang.Multiple attenuation of seismic data from South China Sea by using beam-forming filtering method[J].Oil Geophysical Prospecting,2002,37(1):18-23.
[8] 王汝珍.多次波识别与衰减[J].勘探地球物理进展,2003,26(5-6):423-432.WANG Ruzhen.Recognition and suppression of multiple waves[J].Progress in Exploration Geophysics,2003,26(5-6):423-432.
[9] 王润秋,胡天跃.用聚束滤波方法消除地震资料中规则噪音[J].勘探地球物理进展,2003,26(4):2683-2702.WANG Runqiu,HU Tianyue.Regular interference attenuation for seismic data using beam for ming[J].Progress in Exploration Geophysics,2003,26(4):2683-2702.
[10] 张军华,吕宁,田连玉.地震资料去噪方法、技术综合评述[J].地球物理学进展,2005,20(4):1083-1091.ZHANG Junhua,LYU Ning,TIAN Lianyu.An overview of the methods and techniques for seismic data noise attenuation[J].Progress in Geophysics,2005,20(4):1083-1091.
[11] 段云卿.匹配滤波与子波整形[J].石油地球物理勘探,2006,41(2):156-159.DUAN Yunqing.Matched filtering and wavelet shaping[J].Oil Geophysical Prospecting,2006,41(2):156-159.
[12] 凌云,俞寿朋,周熙襄.零相位同态反褶积[J].石油地球物理勘探,1995,30(3):299-309.LING Yun,YU Shoupeng,ZHOU Xixiang.Zero-phase homomorphic deconvolution[J].Oil Geophysical Prospecting,1995,30(3):299-309.
[13] Battista B M,Knapp C,McGee T,et al.Application of the empirical mode decomposition and Hilbert-Huang transform to seismic reflection data[J].Geophysics,2007,72(2):29-37.
[14] 李雪英,孙丹,侯相辉,等.基于广义S变换、经验模态分解叠前去噪方法的比较[J].地球物理学进展,2011,26(6):2039-2045.LI Xueying,SUN Dan,HOU Xianghui,et al.Comparison of generalized S transform and empirical mode decomposion in high frequencecy seismic noise suppression[J].Progress in Geophysics,2011,26(6):2039-2045.
[15] Pinnegar R C,Mansinha L.The S-transform with windows of arbitrary and varying shape[J].Geophysics,2003,68(1):381-385.