谱蓝化拓频处理技术在春光区块的应用
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摘要
春光区块主要储层为河道砂体,主要特征为砂泥岩薄互层,储层厚度相对较小,纵向上岩性变化快,横向上连通性较差,储层预测难度大。针对此问题,探讨了谱蓝化拓频处理技术在春光区块的应用。春光区块的地震勘探数据经过谱蓝化拓频处理后地震剖面分辨率和主频有所提高,高频弱信号能量强度得到增加,同时基本保持了原始地震勘探数据的信噪比、振幅和时频特性,地震剖面同相轴更精细,能够获得更清晰的目的层段信息。应用结果表明,谱蓝化拓频处理技术解决了该区地震剖面与实钻井地质分层不一致的问题,提高了地震勘探数据识别薄互层的能力,为该区块薄互层砂体的储层预测及油气藏描述提供了可靠的基础数据。
The main reservoir of Chunguang Block is the channel sand body,and interbed developed in thin sand shale.Thickness changes fast vertically and connectivity is poor horizontally. So reservoir prediction is difficult. In this paper,the application of spectral blueing frequency broadening technique is discussed. Starting from the principle of spectral blueing technique,the processing flow is introduced. The processed seismic section resolution and frequency are improved,and the energy intensity of high-frequency weak signal is enhanced. Meanwhile,the signal-to-noise ratio,amplitude and time frequency characteristics of original seismic data are basically maintained,and the seismic section phase axis is finer,which can obtain much clearer objective interval information. Through practical application in Chunguang Block,the inconsistency between seismic section and drilling geological layering is solved. It is proved that the new technique can improve recognition of seismic data of thin interbed,which provides reliable basic data for reservoir prediction and hydrocarbon reservoir description of thin interbedded sand body in the block.
The main reservoir of Chunguang Block is the channel sand body,and interbed developed in thin sand shale.Thickness changes fast vertically and connectivity is poor horizontally. So reservoir prediction is difficult. In this paper,the application of spectral blueing frequency broadening technique is discussed. Starting from the principle of spectral blueing technique,the processing flow is introduced. The processed seismic section resolution and frequency are improved,and the energy intensity of high-frequency weak signal is enhanced. Meanwhile,the signal-to-noise ratio,amplitude and time frequency characteristics of original seismic data are basically maintained,and the seismic section phase axis is finer,which can obtain much clearer objective interval information. Through practical application in Chunguang Block,the inconsistency between seismic section and drilling geological layering is solved. It is proved that the new technique can improve recognition of seismic data of thin interbed,which provides reliable basic data for reservoir prediction and hydrocarbon reservoir description of thin interbedded sand body in the block.
引文
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[12]赵斌,明君,马奎前,等.高频拓展处理技术在渤海H油田开发中的应用[J].石油地质与工程,2011,24(5):55-61.
[13]杨瑞召,赵争光,马彦龙,等.地震拓频技术在薄层油藏开发动态分析中的应用[J].石油地球物理勘探,2010,45(5):695-699.
[14]李涛,陆永潮,陈平,等.准噶尔盆地车排子地区下切谷的发现及其油气地质意义[J].石油实验地质,2008,30(4):363-366.
[15]王鹏飞,刘桂兰,李嵩阳,等.春光区块薄储层地震响应特征的模型正演分析[J].石油地质与工程,2012,26(6):64-67.
[2]刘传虎,王学忠.春光油田边水驱岩性油藏特色开发技术[J].特种油气藏,2011,18(2):52-55.
[3]赵忠华,陈志德,张晶,等.高分辨率处理技术在松辽盆地塔112区块中的应用[J].内蒙古石油化工,2008,24(1):160-162.
[4]穆艳芳,杜新江,余若愚,等.苏里格气田SQW区块天然气储层预测与评价[J].天然气与石油,2011,29(3):38-41.
[5]谢裕江,郑金明,刘高,等.苏里格气田S区块有效砂岩储层波阻抗反演[J].工程物理学报,2011,9(3):311-316.
[6]Blache Fraser,Neep G J.Increasing seismic resolution using spectral blueing and colored inversion[A].∥Cannonball Field,Trinidad[C].74th SEG Annual International Meeting.Expanded Abstracts,2004:1794-1797.
[7]姚姚,刘兴利,吴俊峰,等.基于随机介质的提高地震记录分辨率的扩频方法[J].石油物探,2009,48(5):313-220.
[8]顾军峰,金振奎.AVO技术在气藏预测中的应用[J].科技导报,2009,27(6):43-47.
[9]石好果,刘国宏,宋传春,等.准噶尔盆地春光油田滩坝砂体岩性油藏描述方法[J].石油天然气学报,2012,34(2):71-75.
[10]袁红军,吴时国,王箭波,等.拓频处理技术在大牛地气田勘探开发中的应用[J].石油地球物理勘探,2008,43(1):69-77.
[11]张秀丽,姜岩,秦月霜.拓频地震数据在测井约束反演中的应用效果分析[J].科学技术与工程,2012(5):10-13.
[12]赵斌,明君,马奎前,等.高频拓展处理技术在渤海H油田开发中的应用[J].石油地质与工程,2011,24(5):55-61.
[13]杨瑞召,赵争光,马彦龙,等.地震拓频技术在薄层油藏开发动态分析中的应用[J].石油地球物理勘探,2010,45(5):695-699.
[14]李涛,陆永潮,陈平,等.准噶尔盆地车排子地区下切谷的发现及其油气地质意义[J].石油实验地质,2008,30(4):363-366.
[15]王鹏飞,刘桂兰,李嵩阳,等.春光区块薄储层地震响应特征的模型正演分析[J].石油地质与工程,2012,26(6):64-67.
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