{"title":"Finite Element Modeling of Electroseismics and Seismoelectrics","authors":"F. Zyserman, P. Gauzellino, L. Jouniaux","doi":"10.1002/9781119127383.ch18","DOIUrl":"https://doi.org/10.1002/9781119127383.ch18","url":null,"abstract":"8 In this chapter we describe a set of finite element formulations employed to approximate the 9 solution to an extension to partially saturated porous media of Pride’s equations, which is one 10 of the most widespread theoretical frames that model the coupled electromagnetics and acous11 tics of saturated porous media. We also show how these numerical algorithms can be imple12 mented on multi-core computers, and analyse their performance, observing that the parallel 13 efficiency of the algorithms decays slower when the resources of each computing core are used 14 as close to their maximum as possible. Further, we perform a study of two dimensional PSVTM 15 electroseismic conversions in a time-lapse carbon dioxide geological deposition monitoring sce16 nario, setting the electromagnetic source in depth, and measuring the seismic responses both 17 in wells and at the surface. We observe that, contrary to what is known from standard field 18 settings, the interface responses play no important role in elucidating the CO2 plume behaviour, 19 and that the in-depth converted signals convey information about the carbon dioxide satura20 tion in the plume. 21","PeriodicalId":367728,"journal":{"name":"Seismoelectric Exploration","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116813534","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
L. Jouniaux, V. Allègre, R. Toussaint, F. Zyserman
{"title":"Saturation Dependence of the Streaming Potential Coefficient","authors":"L. Jouniaux, V. Allègre, R. Toussaint, F. Zyserman","doi":"10.1002/9781119127383.ch5","DOIUrl":"https://doi.org/10.1002/9781119127383.ch5","url":null,"abstract":"HAL is a multi-disciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers. L’archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d’enseignement et de recherche français ou étrangers, des laboratoires publics ou privés. Saturation dependence of the streaming potential coefficient Laurence Jouniaux, Vincent Allègre, Renaud Toussaint, Fabio Zyserman","PeriodicalId":367728,"journal":{"name":"Seismoelectric Exploration","volume":"1 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128782560","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Earthquake Sources","authors":"Yongxin Gao, Hengshan Hu","doi":"10.1002/9781119127383.ch17","DOIUrl":"https://doi.org/10.1002/9781119127383.ch17","url":null,"abstract":"Figure 7.1 Mathematical idealization of an “earthquake fault.” In this case we have an elastic material in which we induce a shear strain inside a tabular body. The opposing surfaces of the tabular body are offset by the induced shear strain. We then shrink the thickness of the tabular body to zero, but increase the shear strain so that the net offset is constant; that is, we make the shear strain an impulse in the z-coordinate.","PeriodicalId":367728,"journal":{"name":"Seismoelectric Exploration","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134258693","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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