利用地震高低频信息预测油气富集区
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摘要
钻井揭示下三叠统嘉陵江组二段和飞仙关组三段是HCL地区的主要产气层段。利用地震高低频信息预测油气的方法是应用基于小波变化的时频分析技术,针对含油气储层引起地震波高频能量衰减和低频能量相对增强的现象,有效提取地震高频信息和低频信息进行油气预测。在HCL探区应用该方法,预测含油气区与钻井勘探有很好的吻合度。
The well drilling revealed that the second member of Jialingjiang Formation and the third member of Feixianguan Formation in Lower Triassic were the main gas-producing zones in HCL area where is a good in exploration and development prospect through former researches.The favorable gas-bearing distribution prediction was the key for better exploration achievement.The authors proposed a method using seismic high-low frequency information to predict hydrocarbon,which applied time-frequency analysis based on wavelet transform to predict hydrocarbon by extracting seismic high frequency information and low frequency information aiming at the phenomenon of high frequency enegy attenuation and low frequency enegy enhancement.This method had good coincidence in hydrocarbon prediction and well logging in HCL exploration area.
The well drilling revealed that the second member of Jialingjiang Formation and the third member of Feixianguan Formation in Lower Triassic were the main gas-producing zones in HCL area where is a good in exploration and development prospect through former researches.The favorable gas-bearing distribution prediction was the key for better exploration achievement.The authors proposed a method using seismic high-low frequency information to predict hydrocarbon,which applied time-frequency analysis based on wavelet transform to predict hydrocarbon by extracting seismic high frequency information and low frequency information aiming at the phenomenon of high frequency enegy attenuation and low frequency enegy enhancement.This method had good coincidence in hydrocarbon prediction and well logging in HCL exploration area.
引文
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[16]高静怀,汪文秉,朱光明.小波变换与信号瞬时特征分析[J].地球物理学报,1997,40(6):821-832.GAO Jing-huai,WANG Wen-bing,ZHU Guang-ming.Wavelet transform and instantaneous attributes analysis[J].Chinese Journal of Geophysics,1997,40(6):821-832.
[17]高静怀,万涛,陈文超,等.三参数小波及其在地震资料分析中的应用[J].地球物理学报,2006,49(6):1802-1812.GAO Jing-huai,WAN Tao,CHEN Wen-chao,et al.Three parameters wavelet and its applications to seismicdata processing[J].Chinese Journal of Geophysics,2006,49(6):1802-1812.
[18]Mitchell J T,Derzhi N,Lichma E.Energy absorption a-nalysis:a case study[J].Expanded Abstracts of 66thAnnual Internat SEG Mtg,1996:1785-1788.
[19]撒利明,梁秀文,刘全新.一种基于多相介质理论的油气检测方法[J].勘探地球物理进展,2002,25(6):32-35.SA Li-ming,LIANG Xiu-wen,LIU Quan-xin.A multi-phase theory based hydrocarbon detection method[J].Progress in Exploration Geophysics,2002,25(6):32-35.
[2]黄中玉,王于静,苏永昌.一种新的地震波衰减分析方法—预测油气异常的有效工具[J].石油地球物理勘探,2000,35(6):768-773.HUANG Zhong-yu,WANG Yu-jing,SU Yong-chang.Anew analysis method for seismic wave attenuation:effec-tive tool for predicting hydrocarbon anomaly[J].Oil Ge-ophysical Prospecting,2000,35(6):768-773.
[3]Sams M S,Neep J P,Worhington M H,et al.The meas-urement of velocity dispersion and frequency-dependentintrinsic attenuation in sedimentary rocks[J].Geophys-ics,1997,62(5):1456-1464.
[4]Sinha S,Routh P S.Spectral decomposition of seismicdata with continuous-wavelet transform[J].Geophysics,2005,70(6):19-25.
[5]许多,李显贵,刘殊,等.合兴场地震资料吸收油气预测研究[J].物探化探计算技术,2000,22(1):56-58.XU Duo,LI Xian-gui,LIU Shu,et al.The study onseismic absorption method to predict oil and gas in HXC[J].Computing Techniques for Geophysical and Geo-chemical Exploration,2000,22(1):56-58.
[6]陶知非,赵永林,马磊.低频地震勘探与低频可控震源[J].物探装备,2011,21(2):71-76.TAO Zhi-fei,ZHAO Yong-lin,MA Lei.Low frequencyseismic and low frequeency vibrator[J].Equipment forGeophysical Prospecting,2011,21(2):71-76.
[7]Cara M.Time-frequency analysis[J].Eos,Transac-tions,American Geophysical Union,1982,63(51):13-20.
[8]刘葵,刘招君,朱建伟,等.时频分析在石油地球物理勘探中的应用[J].世界地质,2000,19(3):282-285.LIU Kui,LIU Zhao-jun,ZHU Jian-wei,et al.Applica-tion of time-frequency analysis in geology[J].WorldGeology,2000,19(3):282-285.
[9]邹文,陈爱萍,顾汉明.地震信号的时频分析方法[J].世界地质,2004,23(1):95-99.ZOU Wen,CHEN Ai-ping,GU Han-ming.Time-fre-quency analysis method of seismic signal[J].GlobalGeology,2004,23(1):95-99.
[10]柏涛,徐志伟.时频分析及其在松南地区的应用[J].世界地质,2002,21(1):71-75.BAI Tao,XU Zhi-wei.The application of time-frequnecy analysis to Songnan region[J].World Geol-ogy,2002,21(1):71-75.
[11]Gabor D.Theory of communication[J].Journal of theInstitute of Electrical Engineers,1946,93:429-457.
[12]Goupillaud P,Grossman A,Morlet J.Cycle-octave andrelated transforms in seismic signal analysis[J].Geo-exploration,1984,23:85-102.
[13]Morlet J,Arens G,Fourgeau E,et al.Wave propaga-tion and sampling theory-part 2:sampling theory andcomplex waves[J].Geophysics,1982,47(2):203-221.
[14]Gao J H,Wu R S,Wang B J.A new type of analyzingwavelet best matching seismic wavelets and its applica-tions extraction of the instantaneous spectrum bandwidth[S].Expanded Abstracts of the Technical Program,SEG 71th Annual Meeting,2001.
[15]陈文超,高静怀.基于改进的最佳匹配地震子波的地震资料衰减特性分析[J].地球物理学报,2007,50(3):837-843.CHEN Wen-chao,GAO Jing-huai.Characteristic analy-sis of seismic attenuation using MBMSW wavelets[J].Chinese Journal of Geophysics,2007,50(3):837-843.
[16]高静怀,汪文秉,朱光明.小波变换与信号瞬时特征分析[J].地球物理学报,1997,40(6):821-832.GAO Jing-huai,WANG Wen-bing,ZHU Guang-ming.Wavelet transform and instantaneous attributes analysis[J].Chinese Journal of Geophysics,1997,40(6):821-832.
[17]高静怀,万涛,陈文超,等.三参数小波及其在地震资料分析中的应用[J].地球物理学报,2006,49(6):1802-1812.GAO Jing-huai,WAN Tao,CHEN Wen-chao,et al.Three parameters wavelet and its applications to seismicdata processing[J].Chinese Journal of Geophysics,2006,49(6):1802-1812.
[18]Mitchell J T,Derzhi N,Lichma E.Energy absorption a-nalysis:a case study[J].Expanded Abstracts of 66thAnnual Internat SEG Mtg,1996:1785-1788.
[19]撒利明,梁秀文,刘全新.一种基于多相介质理论的油气检测方法[J].勘探地球物理进展,2002,25(6):32-35.SA Li-ming,LIANG Xiu-wen,LIU Quan-xin.A multi-phase theory based hydrocarbon detection method[J].Progress in Exploration Geophysics,2002,25(6):32-35.
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