白云凹陷深水复杂构造区斜缆地震资料处理关键技术及应用
|
摘要
斜缆地震采集采用水下电缆变深度施工方式,从而产生连续变化的鬼波陷波频率,有利于最大程度地压制鬼波,获得高信噪比和高保真的宽频地震数据。针对珠江口盆地白云凹陷深水复杂构造区斜缆三维地震资料,采用了不同于常规拖缆地震资料处理的子波处理、三维水面相关多次波去除(3DSRME)、镜像偏移和联合反褶积去鬼波、Q补偿等斜缆地震资料处理关键技术,有效地去除了多次波,压制了鬼波,拓宽了低频和高频信息,提高了地震资料信噪比和分辨率。斜缆地震资料处理显著改善了中深层复杂构造成像效果,更好地满足了白云凹陷深水复杂构造区地震反演和解释的需求。
The variable-depth streamer seismic survey can generate ghost frequencies of continuous variation that are easy to suppress farthest,thus obtained high S/N and high fidelity seismic data with wideband.For the 3D seismic data of variable-depth streamer survey in deepwater complex structure area of Baiyun Sag in Pear River Mouth Basin,the processing techniques are different from the regular level-streamer seismic data processing.The key techniques include seismic wavelet processing,3DSRME,mirror migration and joint deconvolution,Q-compensation in phase and amplitude.These techniques eliminated the multiples,suppressed the ghosts,extended both low and high frequency bands,and increased the S/N and resolution.The processed final data improved the quality of complex structure image for middle and deep layers,and which is much better for seismic inversion and interpretation in deepwater complex area of Baiyun Sag.
The variable-depth streamer seismic survey can generate ghost frequencies of continuous variation that are easy to suppress farthest,thus obtained high S/N and high fidelity seismic data with wideband.For the 3D seismic data of variable-depth streamer survey in deepwater complex structure area of Baiyun Sag in Pear River Mouth Basin,the processing techniques are different from the regular level-streamer seismic data processing.The key techniques include seismic wavelet processing,3DSRME,mirror migration and joint deconvolution,Q-compensation in phase and amplitude.These techniques eliminated the multiples,suppressed the ghosts,extended both low and high frequency bands,and increased the S/N and resolution.The processed final data improved the quality of complex structure image for middle and deep layers,and which is much better for seismic inversion and interpretation in deepwater complex area of Baiyun Sag.
引文
[1]傅宁,米立军,张功成.珠江口盆地白云凹陷烃源岩及北部油气成因[J].石油学报,2007,28(3):32-38Fu N,Mi L J,Zhang G C.Source rocks and origin of oil and gas in the northern baiyun depression of pearl river mouth basin[J].Acta Petrolei Sinica,2007,28(3):32-38
[2]朱俊章,施和生,庞雄.珠江口盆地白云凹陷深水区珠海组烃源岩评价及储层烃来源分析[J].中国海上油气,2008,20(4):223-227Zhu J Z,Shi H S,Pang X.Zhuhai formation source rock evaluation and reservoired hydrocarbon source analysis in the deep-water area of Baiyun sag,Pearl River Mouth Basin[J].China Offshore Oil and Gas,2008,20(4):223-227
[3]崔洁,何家雄,周永章.珠江口盆地白云凹陷天然气成因及油气资源潜力分析[J].天然气地球科学,2009,20(1):125-130Cui J,He J X,Zhou Y Z.Origin of nature gas and resource potential of oil and gas in Baiyun Sag,Pearl River Mouth Basin[J].Natural Gas Geoscience,2009,20(1):125-130
[4]Hill D,Combee L,Bacon J.Over/under acquisition and data processing:the next quantum leap in seismic technology[J].First Break,2006,24(6):81-96
[5]Kragh E,Svendsen M,Goto R,et al.A method for efficient broadband marine acquisition and processing[J].Expanded Abstracts of 71st EAGE Annual Conference,2009,2722-2726
[6]zdemir A K,Caprioli P,zbek A,et al.Optimized deghosting of over/under towed-streamer data in the presence of noise[J].The Leading Edge,2008,27(2):190-199
[7]Posthumus B J.Deghosting using a twin streamer configuration[J].Geophysical Prospecting,1993,41(3):267-286
[8]Moldoveanu N,Combee L,Egan M,et al.Over/under towed-streamer acquisition:a method to extend seismic bandwidth to both higher and lower frequencies[J].The Leading Edge,2007,26(1):41-58
[9]Lie,Semb P H.A comparison of vintage hydrophone seismic and dual-sensor seismic offshore Cyprus[J].Expanded Abstracts of 79th Annual Internat SEG Mtg,2009,507-511
[10]Sollner W,Brox E,Widmaier M,et al.Surface related multiple suppression in dual sensor towed streamer data[J].Expanded Abstracts of 77th Annual Internat SEG Mtg,2007,2540-2544
[11]张振波,王征,轩义华,等.海上拖缆宽线理论及其在南海潮汕坳陷中生界地层中的试验效果分析[J].石油天然气学报,2012,34(7):57-61Zhang Z B,Wang Z,Xuan Y H.The marine streamer wide-line theory and its test effect analysis on Mesozoic in South China Sea[J].Journal of Oil and Gas Technology,2012,34(7):57-61
[12]Soubaras R.Variable-depth streamer:deep towing and efficient deghosting for extended band-width[R].SEG/EAGE Research Workshop,2010
[13]Soubaras R,Dowlw R.Variable-depth streamer—a broadband marine solution[J].First Break,2010,28(12):89-96
[14]Dowle R,Maples M.Slid streamer noise reduction principles[J].Expanded Abstracts of 76th Annual Internat SEG Mtg,2006,85-89
[15]Lin D C,Sablon R,Gao Y,et al.Optimizing the processing flow for variable-depth streamer data[J].First Break,2011,29(9):89-95
[16]Sablon R,Russier D,Zurita O,et al.Multiple attenuation for variable-depth streamer data:from deep to shallow water[J].Expanded Abstracts of 81st Annual Internat SEG Mtg,2011,3505-3509
[17]Hung B,Yang K L,Zhou J,et al.Surface multiple attenuation in seabeach-shallow water,case study on data from the Bohai Sea[J].Expanded Abstracts of80th Annual Internat SEG Mtg,2010,3431-3435
[18]Soubaras R.Deghosting by joint deconvolution of a migration and a mirror migration[J].Expanded Abstracts of 80th Annual Internat SEG Mtg,2010,3406-3410
[2]朱俊章,施和生,庞雄.珠江口盆地白云凹陷深水区珠海组烃源岩评价及储层烃来源分析[J].中国海上油气,2008,20(4):223-227Zhu J Z,Shi H S,Pang X.Zhuhai formation source rock evaluation and reservoired hydrocarbon source analysis in the deep-water area of Baiyun sag,Pearl River Mouth Basin[J].China Offshore Oil and Gas,2008,20(4):223-227
[3]崔洁,何家雄,周永章.珠江口盆地白云凹陷天然气成因及油气资源潜力分析[J].天然气地球科学,2009,20(1):125-130Cui J,He J X,Zhou Y Z.Origin of nature gas and resource potential of oil and gas in Baiyun Sag,Pearl River Mouth Basin[J].Natural Gas Geoscience,2009,20(1):125-130
[4]Hill D,Combee L,Bacon J.Over/under acquisition and data processing:the next quantum leap in seismic technology[J].First Break,2006,24(6):81-96
[5]Kragh E,Svendsen M,Goto R,et al.A method for efficient broadband marine acquisition and processing[J].Expanded Abstracts of 71st EAGE Annual Conference,2009,2722-2726
[6]zdemir A K,Caprioli P,zbek A,et al.Optimized deghosting of over/under towed-streamer data in the presence of noise[J].The Leading Edge,2008,27(2):190-199
[7]Posthumus B J.Deghosting using a twin streamer configuration[J].Geophysical Prospecting,1993,41(3):267-286
[8]Moldoveanu N,Combee L,Egan M,et al.Over/under towed-streamer acquisition:a method to extend seismic bandwidth to both higher and lower frequencies[J].The Leading Edge,2007,26(1):41-58
[9]Lie,Semb P H.A comparison of vintage hydrophone seismic and dual-sensor seismic offshore Cyprus[J].Expanded Abstracts of 79th Annual Internat SEG Mtg,2009,507-511
[10]Sollner W,Brox E,Widmaier M,et al.Surface related multiple suppression in dual sensor towed streamer data[J].Expanded Abstracts of 77th Annual Internat SEG Mtg,2007,2540-2544
[11]张振波,王征,轩义华,等.海上拖缆宽线理论及其在南海潮汕坳陷中生界地层中的试验效果分析[J].石油天然气学报,2012,34(7):57-61Zhang Z B,Wang Z,Xuan Y H.The marine streamer wide-line theory and its test effect analysis on Mesozoic in South China Sea[J].Journal of Oil and Gas Technology,2012,34(7):57-61
[12]Soubaras R.Variable-depth streamer:deep towing and efficient deghosting for extended band-width[R].SEG/EAGE Research Workshop,2010
[13]Soubaras R,Dowlw R.Variable-depth streamer—a broadband marine solution[J].First Break,2010,28(12):89-96
[14]Dowle R,Maples M.Slid streamer noise reduction principles[J].Expanded Abstracts of 76th Annual Internat SEG Mtg,2006,85-89
[15]Lin D C,Sablon R,Gao Y,et al.Optimizing the processing flow for variable-depth streamer data[J].First Break,2011,29(9):89-95
[16]Sablon R,Russier D,Zurita O,et al.Multiple attenuation for variable-depth streamer data:from deep to shallow water[J].Expanded Abstracts of 81st Annual Internat SEG Mtg,2011,3505-3509
[17]Hung B,Yang K L,Zhou J,et al.Surface multiple attenuation in seabeach-shallow water,case study on data from the Bohai Sea[J].Expanded Abstracts of80th Annual Internat SEG Mtg,2010,3431-3435
[18]Soubaras R.Deghosting by joint deconvolution of a migration and a mirror migration[J].Expanded Abstracts of 80th Annual Internat SEG Mtg,2010,3406-3410
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心