基于共接收点道集波形相似度的槽波到时估计方法
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摘要
为解决井下透射槽波数据中接收点子波差异影响槽波到时估计准确度的问题,分析了接收点子波差异的成因,提出了基于共接收点道集波形相似度的槽波到时估计方法,利用接收点子波放大同一接收点上槽波相似性的特点,在共接收点道集上计算各道与其他道的互相关系数,依据波形相似度估计各道的槽波到时。实际探测结果表明:共接收点道集的相邻道之间槽波相似度高,估计出的槽波到时能够准确反映断层引起的槽波速度异常,由此获得的速度层析成像结果中,速度异常区与实际断层位置基本一致。
To accurately detect arrival times of transmitted in-seam waves which are damaged by wavelets of receivers,we analyzed the causes of differences of receiver wavelets,and propose a method to detect arrival time based on similarity of wave-forms in common receiver point gather. The method take advantage of the ability of receiver wavelet which can promote the similarity of wave-forms of same receivers,and compute the cross-correlation coefficient between every trace with other traces,and estimate arrival time of in-seam wave according to the similarity of wave-forms. Results of actual applications showed that in-seam waves in common receiver gather have great similarity to adjacent traces,and the estimated arrival times can show the irregularity of in-seam wave caused by faults. On the tomography computed using estimated arrival times,anomalous velocity regions are in accordance with actual faults.
To accurately detect arrival times of transmitted in-seam waves which are damaged by wavelets of receivers,we analyzed the causes of differences of receiver wavelets,and propose a method to detect arrival time based on similarity of wave-forms in common receiver point gather. The method take advantage of the ability of receiver wavelet which can promote the similarity of wave-forms of same receivers,and compute the cross-correlation coefficient between every trace with other traces,and estimate arrival time of in-seam wave according to the similarity of wave-forms. Results of actual applications showed that in-seam waves in common receiver gather have great similarity to adjacent traces,and the estimated arrival times can show the irregularity of in-seam wave caused by faults. On the tomography computed using estimated arrival times,anomalous velocity regions are in accordance with actual faults.
引文
[1]王伟,高星,李松营,等.槽波层析成像方法在煤田勘探中的应用:以河南义马矿区为例[J].地球物理学报,2012,55(3):1054-1062.WANG Wei,GAO Xing,LI Songying,et al.Channel wave tomography method and its application in coal mine exploration:an example from Henan Yima Mining Area[J].Chinese Journal of Geophysics,2012,55(3):1054-1062.
[2]王季,李刚,吴国庆,等.采煤工作面地质异常体透射槽波探测技术[J].煤炭科学技术,2016,44(6):159-163,193.WANG Ji,LI Gang,WU Guoqing,et al.Transmitted channel wave detecting technology of geologic anomalous body in coal mining face[J].Coal Science and Technology,2016,44(6):159-163,193.
[3]姬广忠,程建远,胡继武,等.槽波衰减系数成像方法及其应用[J].煤炭学报,2014,39(S2):471-475.JI Guangzhong,Cheng Jianyuan,Hu Jiwu,et al.In-seam wave imaging using attenuation coefficient:method and application[J].Journal of China Coal Society,2014,39(S2):471-475.
[4]王季,李建政,吴海,等.透射槽波能量衰减系数成像与陷落柱探测[J].煤炭科学技术,2015,43(1):108-111.WANG Ji,LI Jianzheng,WU Hai,et al.Tomography of transmission in-seam wave attenuation coefficient and detection of collapse columns[J].Coal Science and Technology,2015,43(1):108-111.
[5]任亚平.槽波地震勘探在煤矿大型工作面的应用[J].煤炭地质与勘探,2015,43(3):102-104.REN Yaping.Application of ISS in supper large coal face[J].Coal Geology&Exploration,2015,43(3):102-104.
[6]申青春,杨参参,王康,等.透射法槽波地震勘探技术在工作面探测中的应用研究[J].中州煤炭,2015(7):105-107,110.SHEN Qingchun,YANG Cancan,WANG Kang,et al.Application study on in-seam seismic survey using transmission method on exploration of working face[J].Zhongzhou Coal,2015(7):105-107,110.
[7]李刚.煤矿井下工作面内隐伏断层透射槽波探测技术[J].煤田地质与勘探,2016,44(5):142-145.LI Gang.Detection technique of transmission in-seam wave for concealed fault in working face of underground coal mine[J].Coal Geology&Exploration,2016,44(5):142-145.
[8]MASON I M,BUCHANAN D J,Booer A K.Channel wave mapping of coal seams in the United Kingdom[J].Geophysics,1980,45(7):1131-1143.
[9]MASON I M.Algebraic reconstruction of a two-dimensional velocity in homogeneity in the high Hazles seam of Thoresby Colliery[J].Geophysics,1981,46(3):298-308.
[10]Parra J O,Zook B J.Transmission and detection of guided seismic waves in attenuating media[J].Geophysics,1998,63(4):1190-1199.
[11]YANCEY D J,IMHOF M G,FEDDOCK J E,et al.Analysis and application of coal-seam seismic waves for detecting abandoned mines[J].Geophysics,2007,72(5):M7-M15.
[12]杜艳艳,冯磊,余为维,等.透射法地震勘探中槽波几何运动学特征[J].地球物理学进展,2017,32(5):1978-1983.DU Yanyan,FENG Lei,YU Weiwei,et al.Geometric kinematic characteristics of the channel wave in transmission seismic exploration[J].Progress in Geophysics,2017,32(5):1978-1983.
[12]姬广忠,程建远,朱培民,等.煤矿井下槽波三维数值模拟及频散分析[J].地球物理学报,2012,55(2):645-654.JI Guangzhong,CHEN Jianyuan,ZHU Peimin,et al.3-D numerical simulation and dispersion analysis of in-seam wave in underground coal mine[J].Chinese Journal of Geophysics,2012,55(2):645-654.
[13]KRAJEWSKI P,DRESEN L,SCHOTT W,et al.Studies of roadway modes in a coal seam by dispersion and polarization analysis:a case history[J].Geophysical Prospecting,1987,35(7):767-786.
[14]程建远,姬广忠,朱培民,等.典型含煤模型Love型槽波的频散特征分析[J].煤炭学报,2012,37(1):68-72.CHEN Jianyuan,JI Guangzhong,ZHU Peimin,et al.Love channelwaves dispersion characteristic analysis of typical coal models[J].Journal of China Coal Society,2012,37(1):68-72.
[15]曹俊海,顾汉明,尚新民.基于局部相关谱约束的多道匹配追踪算法识别微地震信号[J].石油地球物理勘探,2017,52(4):704-714.CAO Junhai,GU Hanming,SHANG Xinmin.Microseismic signal identification with multichannel matching pursuit based on local coherence spectrum constraint[J].Oil Geophysical Prospecting,2017,52(4):704-714.
[16]林凡生,邹志辉.基于波形相似性的远震初至拾取方法进展与对比研究[J].地球物理学进展,2017,32(4):1597-1606.LIN Fansheng,ZOU Zhihui.Review and comparative study of waveform-similarity based teleseismic first-arrival picking methods[J].Progress in Geophysics,2017,32(4):1597-1606.
[17]KREY T C.Channel waves as a tool of applied geophysics in coal mining[J].Geophysics,1962,28(5):701-714.
[18]吴海.基于ARM技术的矿井自记式地震仪[J].煤田地质与勘探,2013,41(4):81-84.WU Hai.Development of self-recording seismograph based on ARM technique[J].Coal Geology&Exploration,2013,41(4):81-84.
[19]吴海.防爆无缆遥测地震仪在煤矿槽波勘探中的应用[J].煤田地质与勘探,2014,42(8):86-89.WU Hai.Application of explosion-proof telemetry seismograph used in channel wave exploration[J].Coal Geology&Exploration,2014,42(8):86-89.
[20]LU W K,YIN F F.Adaptive algebraic reconstruction technique[J].Medical Physics,2004,31(12):3222-3230.
[21]TRAMPERT J,LEVEQUE J J.Simultaneous iterative reconstruction technique:physical interpretation based on the generalized least squares solution[J].Journal of Geophysical Research,1990,95(8):12553-12559.
[22]胡国泽,滕吉文,皮娇龙,等.井下槽波地震勘探:预防煤矿灾害的一种地球物理方法[J].地球物理学进展,2013,28(1):0439-0451.HU Guoze,TENG Jiwen,PI Jiaolong,et al.In-seam seismic exploration techniques—a geophsical method predictting coal-mine disaster[J].Progress in Geophysics,2013,28(1):0439-0451.
[2]王季,李刚,吴国庆,等.采煤工作面地质异常体透射槽波探测技术[J].煤炭科学技术,2016,44(6):159-163,193.WANG Ji,LI Gang,WU Guoqing,et al.Transmitted channel wave detecting technology of geologic anomalous body in coal mining face[J].Coal Science and Technology,2016,44(6):159-163,193.
[3]姬广忠,程建远,胡继武,等.槽波衰减系数成像方法及其应用[J].煤炭学报,2014,39(S2):471-475.JI Guangzhong,Cheng Jianyuan,Hu Jiwu,et al.In-seam wave imaging using attenuation coefficient:method and application[J].Journal of China Coal Society,2014,39(S2):471-475.
[4]王季,李建政,吴海,等.透射槽波能量衰减系数成像与陷落柱探测[J].煤炭科学技术,2015,43(1):108-111.WANG Ji,LI Jianzheng,WU Hai,et al.Tomography of transmission in-seam wave attenuation coefficient and detection of collapse columns[J].Coal Science and Technology,2015,43(1):108-111.
[5]任亚平.槽波地震勘探在煤矿大型工作面的应用[J].煤炭地质与勘探,2015,43(3):102-104.REN Yaping.Application of ISS in supper large coal face[J].Coal Geology&Exploration,2015,43(3):102-104.
[6]申青春,杨参参,王康,等.透射法槽波地震勘探技术在工作面探测中的应用研究[J].中州煤炭,2015(7):105-107,110.SHEN Qingchun,YANG Cancan,WANG Kang,et al.Application study on in-seam seismic survey using transmission method on exploration of working face[J].Zhongzhou Coal,2015(7):105-107,110.
[7]李刚.煤矿井下工作面内隐伏断层透射槽波探测技术[J].煤田地质与勘探,2016,44(5):142-145.LI Gang.Detection technique of transmission in-seam wave for concealed fault in working face of underground coal mine[J].Coal Geology&Exploration,2016,44(5):142-145.
[8]MASON I M,BUCHANAN D J,Booer A K.Channel wave mapping of coal seams in the United Kingdom[J].Geophysics,1980,45(7):1131-1143.
[9]MASON I M.Algebraic reconstruction of a two-dimensional velocity in homogeneity in the high Hazles seam of Thoresby Colliery[J].Geophysics,1981,46(3):298-308.
[10]Parra J O,Zook B J.Transmission and detection of guided seismic waves in attenuating media[J].Geophysics,1998,63(4):1190-1199.
[11]YANCEY D J,IMHOF M G,FEDDOCK J E,et al.Analysis and application of coal-seam seismic waves for detecting abandoned mines[J].Geophysics,2007,72(5):M7-M15.
[12]杜艳艳,冯磊,余为维,等.透射法地震勘探中槽波几何运动学特征[J].地球物理学进展,2017,32(5):1978-1983.DU Yanyan,FENG Lei,YU Weiwei,et al.Geometric kinematic characteristics of the channel wave in transmission seismic exploration[J].Progress in Geophysics,2017,32(5):1978-1983.
[12]姬广忠,程建远,朱培民,等.煤矿井下槽波三维数值模拟及频散分析[J].地球物理学报,2012,55(2):645-654.JI Guangzhong,CHEN Jianyuan,ZHU Peimin,et al.3-D numerical simulation and dispersion analysis of in-seam wave in underground coal mine[J].Chinese Journal of Geophysics,2012,55(2):645-654.
[13]KRAJEWSKI P,DRESEN L,SCHOTT W,et al.Studies of roadway modes in a coal seam by dispersion and polarization analysis:a case history[J].Geophysical Prospecting,1987,35(7):767-786.
[14]程建远,姬广忠,朱培民,等.典型含煤模型Love型槽波的频散特征分析[J].煤炭学报,2012,37(1):68-72.CHEN Jianyuan,JI Guangzhong,ZHU Peimin,et al.Love channelwaves dispersion characteristic analysis of typical coal models[J].Journal of China Coal Society,2012,37(1):68-72.
[15]曹俊海,顾汉明,尚新民.基于局部相关谱约束的多道匹配追踪算法识别微地震信号[J].石油地球物理勘探,2017,52(4):704-714.CAO Junhai,GU Hanming,SHANG Xinmin.Microseismic signal identification with multichannel matching pursuit based on local coherence spectrum constraint[J].Oil Geophysical Prospecting,2017,52(4):704-714.
[16]林凡生,邹志辉.基于波形相似性的远震初至拾取方法进展与对比研究[J].地球物理学进展,2017,32(4):1597-1606.LIN Fansheng,ZOU Zhihui.Review and comparative study of waveform-similarity based teleseismic first-arrival picking methods[J].Progress in Geophysics,2017,32(4):1597-1606.
[17]KREY T C.Channel waves as a tool of applied geophysics in coal mining[J].Geophysics,1962,28(5):701-714.
[18]吴海.基于ARM技术的矿井自记式地震仪[J].煤田地质与勘探,2013,41(4):81-84.WU Hai.Development of self-recording seismograph based on ARM technique[J].Coal Geology&Exploration,2013,41(4):81-84.
[19]吴海.防爆无缆遥测地震仪在煤矿槽波勘探中的应用[J].煤田地质与勘探,2014,42(8):86-89.WU Hai.Application of explosion-proof telemetry seismograph used in channel wave exploration[J].Coal Geology&Exploration,2014,42(8):86-89.
[20]LU W K,YIN F F.Adaptive algebraic reconstruction technique[J].Medical Physics,2004,31(12):3222-3230.
[21]TRAMPERT J,LEVEQUE J J.Simultaneous iterative reconstruction technique:physical interpretation based on the generalized least squares solution[J].Journal of Geophysical Research,1990,95(8):12553-12559.
[22]胡国泽,滕吉文,皮娇龙,等.井下槽波地震勘探:预防煤矿灾害的一种地球物理方法[J].地球物理学进展,2013,28(1):0439-0451.HU Guoze,TENG Jiwen,PI Jiaolong,et al.In-seam seismic exploration techniques—a geophsical method predictting coal-mine disaster[J].Progress in Geophysics,2013,28(1):0439-0451.