Research on the influence of focal mechanism on the accuracy of surface microseismic event location

PreviousNext No AccessSEG 2018 Workshop: Reservoir Geophysics, Daqing, China, 5–7 August 2018Research on the influence of focal mechanism on the accuracy of surface microseismic event locationAuthors: Shengrui ZhangHaibo ZhaoWeihong WangChaofa RenShengrui ZhangSchool of Earth Sciences, Northeast Petroleum University, Daqing 163318, ChinaSearch for more papers by this author, Haibo ZhaoResearch Institute of Exploration and Development of Daqing Oilfield Corp. Ltd., Daqing 163712, China.Search for more papers by this author, Weihong WangSchool of Earth Sciences, Northeast Petroleum University, Daqing 163318, ChinaSearch for more papers by this author, and Chaofa RenResearch Institute of Exploration and Development of Daqing Oilfield Corp. Ltd., Daqing 163712, China.Search for more papers by this authorhttps://doi.org/10.1190/REGE2018-57.1 SectionsAboutPDF/ePub ToolsAdd to favoritesDownload CitationsTrack CitationsPermissions ShareFacebookTwitterLinked InRedditEmail Abstract The excitation modes of microseismic source induced by The hydraulic fracturing are more complex, and often occurs with different types of the focal mechanism. Understanding the influence of the focal mechanism on the localization accuracy of microseismic events can provide help for the subsequent localization processing. Therefore, it is particularly important to study the impact of the focal mechanism on the accuracy of surface microseismic event location. In this paper, 3D viscoelastic wave forward modelings of three different focal mechanisms (CLVD, DC and ISO) are performed by the high-order staggered grid finite difference method. Using P-wave and S-wave respectively for positioning and comparing the positioning accuracy of the two positioning methods, the impact of the focal mechanism on the location accuracy of surface microseismic events was analyzed. Keywords: microseismic event, 3D viscoelastic wave forward modeling, CLVD, DC, ISOPermalink: https://doi.org/10.1190/REGE2018-57.1FiguresReferencesRelatedDetails SEG 2018 Workshop: Reservoir Geophysics, Daqing, China, 5–7 August 2018ISSN (online):2159-6832Copyright: 2018 Pages: 254 publication data© 2020 Published in electronic format with permission by the Society of Exploration Geophysicists and the Chinese Geophysical SocietyPublisher:Society of Exploration Geophysicists HistoryPublished Online: 14 Dec 2018 CITATION INFORMATION Shengrui Zhang, Haibo Zhao, Weihong Wang, and Chaofa Ren, (2018), "Research on the influence of focal mechanism on the accuracy of surface microseismic event location," SEG Global Meeting Abstracts : 221-224. https://doi.org/10.1190/REGE2018-57.1 Plain-Language Summary Keywordsmicroseismic event3D viscoelastic wave forward modelingCLVDDCISOPDF DownloadLoading ...