斜缆宽频地震勘探技术在珠江口盆地的应用
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摘要
本文介绍在珠江口盆地惠州、白云等富生烃凹陷采用的斜缆宽频地震勘探采集处理技术。此项技术与以往海上地震勘探各项常规技术的最大不同在于去除鬼波的方法,即通过处理随检波器深度变化而变化的地震子波,使鬼波得到彻底的消除,从而增大了地震资料的高低频能量、拓宽了地震资料频带,使得中、深层地震资料品质及成像明显改善。
This paper discusses an approach of variabledepth streamer acquisition and processing applied in Huizhou and Baiyun sags,Pearl River Mouth Basin.The difference between this approach and conventional ways is ghost removal.The key step is to process variable wavelets along with hydrophone depths.Because of better ghost removal,seismic data bandwidth is increased both on low and high frequency.Therefore seismic data quality is greatly improved and middle-deep layers are better imaged.
This paper discusses an approach of variabledepth streamer acquisition and processing applied in Huizhou and Baiyun sags,Pearl River Mouth Basin.The difference between this approach and conventional ways is ghost removal.The key step is to process variable wavelets along with hydrophone depths.Because of better ghost removal,seismic data bandwidth is increased both on low and high frequency.Therefore seismic data quality is greatly improved and middle-deep layers are better imaged.
引文
[1]龚再升,李思田等.南海北部大陆边缘盆地油气成藏动力学研究.北京:科学出版社,2004,223-254.
[2]朱伟林等.南海北部大陆边缘盆地天然气地质.北京:石油工业出版社,2007,60-90.
[3]杨振武.海洋石油地震勘探———资料采集与处理.北京:石油工业出版社,2012,1-23.
[4]Robert Soubaras.Variable-depth streamer:deep towing and efficient deghosting for extended bandwidth.SEG/EAGE Research Workshop,2010,289-292.
[5]Robert Soubaras,Robert Dowle.Variable-depth streamer—a broadband marine solution.First Break,2010,28(12):89-96.
[6]Ronan Sablon,Thierry Payen,Danny Hardouin et al.Synchronized multi-level source and Variabledepth streamer—a combined ghost-free solution for BroadBand marine data.75th EAGE Conference&Exhibition Extended Abstracts,2013,458-462.
[7]赵仁永,张振波,轩义华.上下源、上下缆地震采集技术在珠江口的应用.石油地球物理勘探,2011,46(4):517-521.Zhao Renyong,Zhang Zhenbo,Xuan Yihua.Application of over/under streamer and over/under source seismic acquisition in the Pearl River Mouth Basin.OGP,2011,46(4):517-521.
[8]谢玉洪,李列,袁全社.海上宽频地震勘探技术在琼东南盆地深水区的应用.石油地球物理勘探,2012,47(3):430-435.Xie Yuhong,Li Lie,Yuan Quanshe.Broadband marine seismic exploration in Qiongdongnan Basin deepwater areas.OGP,2012,47(3):430-435.
[9]赵仁永,张振波,轩义华.双传感器拖缆采集技术在珠江口盆地中生界地层中的应用.石油天然气学报,2011,33(3):58-61.Zhao Renyong,Zhang Zhenbo,Xuan Yihua.Application of the dual-sensor streamer acquisition technology in Mesozoic Group of pearl-river Mouth Basin.Journal of Oil and Gas Technology,2011,33(3):58-61.
[10]Robert Soubaras.Pre-stack deghosting for variabledepth streamer data.SEG Technical Program Expanded Abstracts,2012,31:1083-1087.
[11]Dowle R,Mike Maples.Slid streamer noise reduction principles.SEG Technical Program Expanded Abstracts,2006,25:85-89.
[12]Michel L,Lafet Y,Sablon R et al.Variable depth streamer-benefits for rock property inversion.74th EAGE Conference&Exhibition Extended Abstracts,2012,376-378.
[13]Soubaras R,Dowle R,Sablon R.BroadSeis:Enhancing interpretation and inversion with broadband marine seismic.CSEG RECORDER,2012,9:40-46.
[14]Robert Soubaras,Yves Lafet.Variable-depth streamer acquisition:broadband data for imaging and inversion.SEG Technical Program Expanded Abstracts,2011,30:2364-2368.
[15]Ronan Sablon,Damien Russier,Oscar Zurita et al.Multiple attenuation for variable-depth streamer data:from deep to shallow water.SEG Technical Program Expanded Abstracts,2011,30:3505-3509.
[16]Dechun Lin,Ronan Sablon,Yan Gao et al.Optimizing the processing flow for variable-depth streamer Data.First Break,2011,29(9):89-95.
[17]Dechun Lin,Ronan Sablon,Yan Gao et al.Challenges in processing variable-depth streamer data.SEG Technical Program Expanded Abstracts,2011,30:82-86.
[18]Barry Hung,Kunlun Yang,Joe Zhou et al.Surface multiple attenuation in seabeach-shallow water,case study on data from the Bohai Sea.SEG Technical Program Expanded Abstracts,2010,29:3431-3435.
[19]Berkhout A J,Verschuur D J.Estimation of multiple scattering by iterative inversion,Part I:Theoretical considerations.Geophysics,1997,62(5):1586-1595.
[20]Soubaras R.Deghosting by joint deconvolution of a migration and a mirror migration.SEG Technical Program Expanded Abstracts,2010,29:3406-3410.
[2]朱伟林等.南海北部大陆边缘盆地天然气地质.北京:石油工业出版社,2007,60-90.
[3]杨振武.海洋石油地震勘探———资料采集与处理.北京:石油工业出版社,2012,1-23.
[4]Robert Soubaras.Variable-depth streamer:deep towing and efficient deghosting for extended bandwidth.SEG/EAGE Research Workshop,2010,289-292.
[5]Robert Soubaras,Robert Dowle.Variable-depth streamer—a broadband marine solution.First Break,2010,28(12):89-96.
[6]Ronan Sablon,Thierry Payen,Danny Hardouin et al.Synchronized multi-level source and Variabledepth streamer—a combined ghost-free solution for BroadBand marine data.75th EAGE Conference&Exhibition Extended Abstracts,2013,458-462.
[7]赵仁永,张振波,轩义华.上下源、上下缆地震采集技术在珠江口的应用.石油地球物理勘探,2011,46(4):517-521.Zhao Renyong,Zhang Zhenbo,Xuan Yihua.Application of over/under streamer and over/under source seismic acquisition in the Pearl River Mouth Basin.OGP,2011,46(4):517-521.
[8]谢玉洪,李列,袁全社.海上宽频地震勘探技术在琼东南盆地深水区的应用.石油地球物理勘探,2012,47(3):430-435.Xie Yuhong,Li Lie,Yuan Quanshe.Broadband marine seismic exploration in Qiongdongnan Basin deepwater areas.OGP,2012,47(3):430-435.
[9]赵仁永,张振波,轩义华.双传感器拖缆采集技术在珠江口盆地中生界地层中的应用.石油天然气学报,2011,33(3):58-61.Zhao Renyong,Zhang Zhenbo,Xuan Yihua.Application of the dual-sensor streamer acquisition technology in Mesozoic Group of pearl-river Mouth Basin.Journal of Oil and Gas Technology,2011,33(3):58-61.
[10]Robert Soubaras.Pre-stack deghosting for variabledepth streamer data.SEG Technical Program Expanded Abstracts,2012,31:1083-1087.
[11]Dowle R,Mike Maples.Slid streamer noise reduction principles.SEG Technical Program Expanded Abstracts,2006,25:85-89.
[12]Michel L,Lafet Y,Sablon R et al.Variable depth streamer-benefits for rock property inversion.74th EAGE Conference&Exhibition Extended Abstracts,2012,376-378.
[13]Soubaras R,Dowle R,Sablon R.BroadSeis:Enhancing interpretation and inversion with broadband marine seismic.CSEG RECORDER,2012,9:40-46.
[14]Robert Soubaras,Yves Lafet.Variable-depth streamer acquisition:broadband data for imaging and inversion.SEG Technical Program Expanded Abstracts,2011,30:2364-2368.
[15]Ronan Sablon,Damien Russier,Oscar Zurita et al.Multiple attenuation for variable-depth streamer data:from deep to shallow water.SEG Technical Program Expanded Abstracts,2011,30:3505-3509.
[16]Dechun Lin,Ronan Sablon,Yan Gao et al.Optimizing the processing flow for variable-depth streamer Data.First Break,2011,29(9):89-95.
[17]Dechun Lin,Ronan Sablon,Yan Gao et al.Challenges in processing variable-depth streamer data.SEG Technical Program Expanded Abstracts,2011,30:82-86.
[18]Barry Hung,Kunlun Yang,Joe Zhou et al.Surface multiple attenuation in seabeach-shallow water,case study on data from the Bohai Sea.SEG Technical Program Expanded Abstracts,2010,29:3431-3435.
[19]Berkhout A J,Verschuur D J.Estimation of multiple scattering by iterative inversion,Part I:Theoretical considerations.Geophysics,1997,62(5):1586-1595.
[20]Soubaras R.Deghosting by joint deconvolution of a migration and a mirror migration.SEG Technical Program Expanded Abstracts,2010,29:3406-3410.