委内瑞拉奥里诺科重油带J区块新老二维地震资料精细匹配处理及构造特征分析
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摘要
针对委内瑞拉奥里诺科重油带J区块新老二维地震资料存在的问题,应用精细匹配处理方法,即以精细频率匹配和精细振幅匹配和相位校正为主要手段,结合时间偏移处理以及去噪、混波处理等手段,普遍突出了有效反射信息,提高了不同年度地震剖面之间的闭合精度,大大提高了构造解释的准确性.虽然地震资料很少,但仍解释出了J区块的三层构造图.构造解释结果表明,J区块地层总体是一个北倾单斜,其上发育一些北东和近东西向的断层,油藏类型以岩性油藏为主,断层对油藏主要起复杂化作用.J区块这一构造特征与其所处的构造背景、基底形态和构造应力作用有关.
In order to solve problems that exist between the new and old 2D data acquired in various years from block J of the Orinoco heavy oil belt,a technique of subtle matching processing is developed.During the matching processing,subtle frequency compensation,amplitude compensation and phase correction are major methods,and several tools such as time migration,noise attenuation and trace mix.are combined.Thus effective signals are widely emphasized,and closure accuracy is increased among seismic sections acquired in various years,and the accuracy of the structure interpretation has been improved.The structures of the three layers have been interpreted although seismic data in limited.The interpretation shows that the block J is generally a monoclinic dipping to the north,on which the faults have the orientations NE and nearly EW.The types of the reservoir are mainly lithologic reservoir,and the faults make the reservoir complicated.The structural pattern of block J is related to its tectonic background,basement topography and tectonic stress.
In order to solve problems that exist between the new and old 2D data acquired in various years from block J of the Orinoco heavy oil belt,a technique of subtle matching processing is developed.During the matching processing,subtle frequency compensation,amplitude compensation and phase correction are major methods,and several tools such as time migration,noise attenuation and trace mix.are combined.Thus effective signals are widely emphasized,and closure accuracy is increased among seismic sections acquired in various years,and the accuracy of the structure interpretation has been improved.The structures of the three layers have been interpreted although seismic data in limited.The interpretation shows that the block J is generally a monoclinic dipping to the north,on which the faults have the orientations NE and nearly EW.The types of the reservoir are mainly lithologic reservoir,and the faults make the reservoir complicated.The structural pattern of block J is related to its tectonic background,basement topography and tectonic stress.
引文
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[2]孟庆生,楚贤峰,郭秀军,等.高分辨率数据处理技术在近海工程地震勘探中的应用[J].地球物理学进展,2007,(3):1006~1010.Meng Q S,Chu X F,Guo X J,et al.The application of highresolution seismic data processing technique in multi-channelshallow offshore engineering seismic surveys[J].Progress inGeophysics,2007,(3):1006~1010.
[3]王西文,胡自多,田彦灿,等.地震子波处理的二步法反褶积方法研究[J].地球物理学进展,2006,21(4):1167~1179.Wang X W,Hu Z D,Tian Y C,et al.Study of seismicwavelet processing method in two step deconvolution[J].Progress in Geophysics,2006,21(4):1167~1179.
[4]陈雨红,杨长春,曹齐放,等.几种时频分析方法比较[J].地球物理学进展,2006,21(4):1180~1185.Chen Y H,Yang C C,Cao Q F,et al.The comparison ofsome time-frequency analysis methods[J].Progress inGeophysics,2006,21(4):1180~1185.
[5]何玉梅,杨玉江,葛勇,王述亭.精细匹配处理技术及其在惠州凹陷二维地震老资料处理中的应用[J].中国海上油气,2006,18(4):247~250.(补英文)
[6]文一华,周建军,杜尧树,朱美勤.CGG精细处理技术在吐哈盆地的应用[J].吐哈油气,2004,9(4):375~380.(补英文)
[7]孙永强,李德安,谢雷林,成云.ZJ地区盐矿地震资料高分辨率处理探讨[J].石油仪器,2006,20(5):65~68.(补英文)
[8]张印堂,刘培体.渤深6地区高精度处理技术[J].地球物理学进展,2005,20(1):49~53.Zhang Y T,Liu P T.High-precision processing technology inBoshen 6 area[J].Progress in Geophysics(in Chinese),2005,20(1):49~53.
[9]李振春,王希萍,韩文功.地震数据处理中的相位校正技术综述[J].地球物理学进展,2008,23(3):785~792.Li Z C,Wang X P,Han W G.Review of phase correction inseismic data processing[J].Progress in Geophysics,2008,23(3):785~792.
[10]张军华,吕宁,田连玉,等.地震资料去噪方法技术综合评述[J].地球物理学进展,2006,21(2):546~553.Zhang J H,LüN,Tian L Y,et al.An overview of themethods and techniques for seismic data noise attenuation[J].PROGRESS IN GEOPHSICS,2006,21(2):546~553.
[11]陈赟,高乐,赵烽帆.一种基于频率域偏振分析提高三分量地震资料信噪比的方法[J].地球物理学进展,2007,22(1):255~261.Chen Y,Gao L,Zhao F F.A method to enhance the signal/noise ratio of three-component seismic data based on thepolarization analysis in fre-quency domain[J].Progress inGeophysics(in Chinese),2007,22(1):255~261.
[12]邓小英,李月.Ricker子波核最小二乘支持向量机在地震勘探信号去噪应用中的参数设置研究[J].地球物理学进展,2007,22(3):953~959.Deng X Y,Li Y.Study of parameters setting for least squaresupport vector machine based on Ricker wavelet kernel in thedenoising applications of seismic prospecting signals[J].Progress in Geophysics(in Chinese),2007,22(3):953~959.
[13]张文坡,陈湛文.线性化空间变换叠前与叠后地震记录去噪方法[J].地球物理学进展,2006,21(1):190~193.Zhang W P,Chen Z W.Denoise method for prestack andpoststack seismic records by linear spatial transformation[J].PROGRESS IN GEOPHSICS,2006,21(1):190~193.
[14]王典,刘财,刘洋,等.反射法地震勘探噪声消除技术研究[J].地球物理学进展,2006,21(3):957~970.Wang D,Liu C,Liu Y,et al.Study of the noise eliminationmethods in the reflection seismic exploration[J].Progress inGeophysics(in Chinese),2006,21(3):957~970.
[15]李文莲,邓辉,闫立志.鄂尔多斯盆地北部低信噪比资料的高分辨率处理[J].地球物理学进展,2005,20(4):1059~1066.Li W L,Deng H,Yan L Z.A high-resolution procedure oflow SNR data for North Ordos bason[J].Progress inGeophysics(in Chinese),2005,20(4):1059~1066.
[16]Rojas D E.Geological evaluation of san diego norte pilotproject,Zuata Area,Orinoco Oil Belt,Venezuela[J].AAPG,1987,71(10):1294~1303.
[17]王红霞,郭玉贵.青岛马山—王哥庄断裂带构造活动性分析[J].地球物理学进展,2005,20(3):630~634.Wang H X,Guo Y G.Analysis on the tectonic activity ofMashan—Wanggezhuang fracture zone in Qingdao,China[J].Progress in Geophysics(in Chinese),2005,20(3):630~634.
[18]徐纪人,赵志新,石川有三.中国大陆地壳应力场与构造运动区域特征研究[J].地球物理学报,2008,51(3):770~781.Xu J R,Zhao Z X,Ishikawa Y.Regional characteristics ofcrustal stress field and tectonic motions in and around Chinesemainland[J].Chinese J.Geophys.(in Chinese),2008,51(3):770~781.
[19]Audemard F E,Serrand I C.Future petroliferous provincesof venezuela[J].AAPG,Partt II Conference“PetroleumProvinces of the 21st Century”2000,1~25.
[20]Paul M,Alejandro E,María V C.Regional geologic andtectonic setting of the Maracaibo supergiant basin,westernVenezuela[J].AAPG,2006,90(4):445~477.
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