Research on cross-well seismic tomography cross the Anninghe fault zone

doi:10.13745/j.esf.sf.2025.2.17

Abstract

Abstract:

The Anninghe fault zone is a seismically active fault zone in western Sichuan characterized by strong earthquake activity. To investigate the lithology, physical properties, fine fault structure, and spatiotemporal variations of the fault medium, we applied cross-well seismic tomography to image the fine structure of the fault zone. The results derived using the bent-ray tracing method reveal a P-wave velocity structure image of the Anninghe fault zone that aligns well with fault features identified from borehole drilling and logging data. The acquired high-resolution velocity structural image provides crucial constraints for understanding the seismogenic processes of earthquakes on the Anninghe fault zone and for assessing its potential strong earthquake hazards.

Key words: anninghe fault zone, curved-ray tracing, cross-well seismic tomography, fine velocity structure

CLC Number:

P315
P631.4

HU Gang, SHAO Lei, GUO Lei. Research on cross-well seismic tomography cross the Anninghe fault zone[J]. Earth Science Frontiers, 2025, 32(4): 444-452.

Figures/Tables 7

Fig.1 The classical model of the cross-well seismic computerized tomography

Fig.2 The topographic map crossing Anninghe fault zone

Fig.3 YUEHUA cross-well seismic geometry

Fig.4 ZK01& ZK02 cross-well seismic tomography ray distribution

Fig.5 The shot record first arrival for cross-well seismic in Anninghe fault zone

Fig.6 Basic process of data processing for cross-well seismic tomography imaging

Fig.7 Cross-well seismic tomography across the Anninghe fault zone

References 42

[1]	程建武, 郭桂红, 岳志军. 安宁河断裂带晚第四纪活动的基本特征及强震危险性分析[J]. 地震研究, 2010, 33(3): 265-272, 354.
[2]	童馗, 李智武, 刘树根, 等. 始新世中期安宁河断裂冲断变形特征及其构造意义:来自断层泥自生伊利石K-Ar定年的证据[J]. 地学前缘, 2024, 31(4): 297-313. DOI
[3]	冉勇康, 陈立春, 程建武, 等. 安宁河断裂冕宁以北晚第四纪地表变形与强震破裂行为[J]. 中国科学D辑: 地球科学, 2008, 38(5): 543-554.
[4]	闻学泽, 范军, 易桂喜, 等. 川西安宁河断裂上的地震空区[J]. 中国科学D辑: 地球科学, 2008, 38(7): 797-807.
[5]	朱艾斓, 徐锡伟, 甘卫军, 等. 鲜水河—安宁河—则木河断裂带上可能存在的凹凸体: 来自背景地震活动性的证据[J]. 地学前缘, 2009, 16(1): 218-225.
[6]	易桂喜, 闻学泽, 范军, 等. 由地震活动参数分析安宁河-则木河断裂带的现今活动习性及地震危险性[J]. 地震学报, 2004, 26(3): 294-303.
[7]	许志琴, 李海兵, 吴忠良. 汶川地震和科学钻探[J]. 地质学报, 2008, 82(12): 1613-1622.
[8]	潘和平, 牛一雄, 王文先, 等. 测井和地震联合解释CCSD先导孔反射体[J]. 地球科学:中国地质大学学报, 2006, 31(4): 569-574.
[9]	杨文采, 杨午阳, 程振炎. 中国大陆科学钻探孔区的地震波速模型[J]. 地球物理学报, 2006, 49(2): 477-489.
[10]	李朋武, 崔军文, 王连捷, 等. 中国大陆科学钻探主孔钻孔崩落与现场应力状态的确定[J]. 岩石学报, 2005, 21(2): 421-426.
[11]	杨正华, 朱光明, 周小伟. 中国大陆科学探井岩性的VSP地震特征分析[J]. 现代地质, 2009, 23(6): 1153-1159.
[12]	朱光明, 杨文采, 杨正华, 等. 中国大陆科学钻探孔区的垂直地震剖面调查[J]. 地球物理学报, 2008, 51(2): 479-490.
[13]	WU H Y, MA K F, ZOBACK M, et al. Stress orientations of Taiwan Chelungpu-Fault Drilling Project (TCDP) hole-a as observed from geophysical logs[J]. Geophysical Research Letters, 2007, 34(1): L01303.
[14]	曹辉. 井中地球物理技术综述[J]. 勘探地球物理进展, 2004, 27(4): 235-240.
[15]	段宝平. 井间地震层析成像在隐伏断层探测中的应用[D]. 北京: 中国地震局地球物理研究所, 2011.
[16]	裴正林. 井间地震层析成像的现状与进展[J]. 地球物理学进展, 2001, 16(3): 91-97.
[17]	段宝平, 何正勤, 叶太兰. 井间地震技术的研究现状及其工程应用前景[J]. 物探与化探, 2010, 34(5): 610-616.
[18]	胡刚, 段宝平, 何正勤, 等. 利用井间地震层析成像方法探测隐伏断层[J]. CT理论与应用研究, 2015, 24(3): 345-355.
[19]	冯彦谦, 赵广茂, 孟宪波. 井间地震层析成像技术的应用[J]. 物探与化探, 2011, 35(3): 345-348.
[20]	裴正林, 余钦范, 狄帮让, 等. 井间地震层析成像分辨率研究[J]. 物探与化探, 2002, 26(3):218-224.
[21]	崔鑫, 宋秀青, 石耀霖, 等. 沂沭断裂带及其邻区地壳P波层析成像研究[J]. 地学前缘, 2023, 30(2): 272-281. DOI
[22]	吴国炜, 熊小松, 高锐, 等. 北山构造带南部上地壳二维初至波层析成像[J]. 地学前缘, 2022, 29(2): 402-415. DOI
[23]	段心标, 金维浚. 井间层析成像混合最短射线追踪旅行时反演[J]. 工程地球物理学报, 2007, 4(3): 201-206.
[24]	胡刚, 何正勤, 叶太兰. 浅VSP技术应用研究进展[J]. 工程地球物理学报, 2009, 6(3): 282-288.
[25]	陈林. 三维VSP技术的应用与展望[J]. 勘探地球物理进展, 2007, 30(3): 162-167.
[26]	冯有奎, 王宇超. 三维VSP方法实践及应用前景评价[J]. 西北油气勘探, 2005, 17(2): 58-65.
[27]	何正勤, 吴庆举, 冯锐, 等. 反向VSP透射层析成像法在岩墙松动层检测中的应用[J]. 物探与化探, 2001, 25(1): 50-53.
[28]	王建民, 刘洋, 魏修成. 三维VSP观测系统设计研究[J]. 石油地球物理勘探, 2007, 42(5): 489-494, 610, 481.
[29]	CHOPRA S, ALEXEEV V, MANERIKAR A, et al. Processing/integration of simultaneously acquired 3D surface seismic and 3D VSP data[J]. The Leading Edge, 2012, 23(5): 422-430.
[30]	GE J, PUJOL J, PEZESHK S, et al. Determination of shallow shear-wave velocity at Mississippi embayment sites using vertical seismic profiling data[J]. Bulletin of the Seismological Society of America, 2007, 97(2): 614-623.
[31]	何正勤, 陈宇坤, 叶太兰, 等. 浅层地震勘探在沿海地区隐伏断层探测中的应用[J]. 地震地质, 2007, 29(2): 363-372.
[32]	CHAVARRIA J A, GOERTZ A, KARRENBACH M, et al. The use of VSP techniques for fault zone characterization: an example from the San Andreas Fault[J]. The Leading Edge, 2007, 26(6): 770-776.
[33]	李舟波. 钻井地球物理勘探[M]. 北京: 地质出版社, 1986.
[34]	秦绪英, 朱海龙. 时移地震技术及其应用现状分析[J]. 勘探地球物理进展, 2007, 30(3): 219-225, 237.
[35]	BAKULIN A, KORNEEV V, WATANABE T, et al. Time-lapse changes in tube and guided waves in cross-well Mallik experiment[C]// SEG technical program expanded abstracts 2006. Houston: Society of Exploration Geophysicists, 2006: 379-383.
[36]	ZIATDINOV S, BAKULIN A, KASHTAN B, et al. Tube-wave monitoring at mallik field: comparing modeled and experimental time-lapse responses[C]// SEG technical program expanded abstracts 2006. Houston: Society of Exploration Geophysicists, 2006: 3240-3244.
[37]	ZHAO B, JOHNSTON D, GOUVEIA W. Spectral decomposition of 4D seismic data[C]// SEG technical program expanded abstracts 2006. Houston: Society of Exploration Geophysicists, 2006: 3235-3239.
[38]	DASGUPTA S N, Fluid flow monitoring in Middle East carbonate reservoirs: alternative to 4D seismic[C]// SEG technical program expanded abstracts 2005. Houston: Society of Exploration Geophysicists, 2005: 1570-1574.
[39]	SILVER P G, DALEY T M, NIU F, et al. Active source monitoring of cross-well seismic travel time for stress-induced changes[J]. Bulletin of the Seismological Society of America, 2007, 97(1B): 281-293.
[40]	IONOV A M, MAXIMOV G A. Propagation of tube waves generated by an external source in layered permeable rocks[J]. Geophysical Journal International, 1996, 124(3): 888-906.
[41]	KOSTEK S, JOHNSON D L, WINKLER K W, et al. The interaction of tube waves with borehole fractures, Part II: analytical models[J]. Geophysics, 1998, 63(3): 809-815.
[42]	OHTANI T, FUJIMOTO K, ITO H, et al. Fault rocks and past to recent fluid characteristics from the borehole survey of the Nojima fault ruptured in the 1995 Kobe earthquake, southwest Japan[J]. Journal of Geophysical Research: Solid Earth, 2000, 105(B7): 16161-16171.