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dc.contributor.authorWang, H.
dc.contributor.authorGuo, Qiang
dc.contributor.authorAlkhalifah, Tariq Ali
dc.contributor.authorWu, Z.
dc.date.accessioned2020-03-03T06:40:59Z
dc.date.available2020-03-03T06:40:59Z
dc.date.issued2019-08-26
dc.identifier.citationWang, H., Guo, Q., Alkhalifah, T., & Wu, Z. (2019). A Field Data Application of Regularized Elastic Passive Equivalent Source Inversion With Full Waveform Inversion. 81st EAGE Conference and Exhibition 2019. doi:10.3997/2214-4609.201900677
dc.identifier.doi10.3997/2214-4609.201900677
dc.identifier.urihttp://hdl.handle.net/10754/661859
dc.description.abstractUsing full waveform inversion (FWI) to locate passive events allows for an automatic process. Passive seismic data are often acquired on solid surfaces including the bottom of the sea, in which multi-component measurement under the elastic assumption is important. We develop a regularized elastic FWI of passive seismic events to invert for the source image, source function and the velocity model, simultaneously, without any a prior information about the source. We reformulate the elastic problem by representing the source images by $P$-wave and $S$-wave perturbation coefficients. The unknown source ignition time is mitigated by convolving reference traces with the observed and modeled data. A total variation regularization is applied to improve the robustness of the velocity inversion considering the limited sources and illumination angles of microseismic experiments. We also applied a focusing function to the source to overcome the possible limited aperture coverage of the acquisition, especially in well recording. The adjoint-state method is used to derive the gradient for the source image, source function and velocity. The resulting inversion framework is capable of handling limited aperture data and limited sources. Application to synthetic and real data with limited recording aperture along a well demonstrates the effectiveness of the approach.
dc.publisherEAGE Publications
dc.relation.urlhttp://www.earthdoc.org/publication/publicationdetails/?publication=97692
dc.rightsArchived with thanks to EAGE Publications BV
dc.titleA field data application of regularized elastic passive equivalent source inversion with full waveform inversion
dc.typeConference Paper
dc.contributor.departmentEarth Science and Engineering Program
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.contributor.departmentSeismic Wave Analysis Group
dc.conference.date2019-06-03 to 2019-06-06
dc.conference.name81st EAGE Conference and Exhibition 2019
dc.conference.locationLondon, GBR
dc.eprint.versionPre-print
dc.contributor.institutionCGG
kaust.personWang, H.
kaust.personGuo, Qiang
kaust.personAlkhalifah, Tariq Ali


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