Pub Date : 2023-01-30DOI: 10.3997/2214-4609.202310750
Ujjwal Shekhar, M. Jakobsen, E. Iversen, I. Berre, F. Radu
In this paper, we present a frequency-domain volume integral method to model the microseismic wavefield in heterogeneous anisotropic-elastic media. The elastic wave equation is written as an integral equation of the Lippmann-Schwinger type, and the seismic source is represented as a general moment tensor. The displacement field due to a moment tensor source can be computed using the spatial derivative of the elastodynamic Green's function. The existing matrix-based implementation of the integral equation is computationally inefficient to model the wavefield in a three-dimensional earth. An integral equation for the particle displacement is, hence, formulated in a matrix-free manner through the application of the Fourier transform. The biconjugate gradient stabilized method is used to iteratively obtain the solution of this equation. We apply the numerical scheme to three different models in order of increasing geological complexity and obtain the elastic displacement fields corresponding to the different types of moment tensor sources. The volume integral method has an advantage over the time domain methods in regard to adding multiple sources since it can work with discrete frequencies, one by one, and limit the computational cost. The generated synthetic data can be useful in inversion for the microseismic source and model parameters.
{"title":"Fast integral equation method for microseismic wavefield modelling in anisotropic elastic media.","authors":"Ujjwal Shekhar, M. Jakobsen, E. Iversen, I. Berre, F. Radu","doi":"10.3997/2214-4609.202310750","DOIUrl":"https://doi.org/10.3997/2214-4609.202310750","url":null,"abstract":"In this paper, we present a frequency-domain volume integral method to model the microseismic wavefield in heterogeneous anisotropic-elastic media. The elastic wave equation is written as an integral equation of the Lippmann-Schwinger type, and the seismic source is represented as a general moment tensor. The displacement field due to a moment tensor source can be computed using the spatial derivative of the elastodynamic Green's function. The existing matrix-based implementation of the integral equation is computationally inefficient to model the wavefield in a three-dimensional earth. An integral equation for the particle displacement is, hence, formulated in a matrix-free manner through the application of the Fourier transform. The biconjugate gradient stabilized method is used to iteratively obtain the solution of this equation. We apply the numerical scheme to three different models in order of increasing geological complexity and obtain the elastic displacement fields corresponding to the different types of moment tensor sources. The volume integral method has an advantage over the time domain methods in regard to adding multiple sources since it can work with discrete frequencies, one by one, and limit the computational cost. The generated synthetic data can be useful in inversion for the microseismic source and model parameters.","PeriodicalId":149285,"journal":{"name":"84th EAGE Annual Conference & Exhibition","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125513851","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}
Pub Date : 2020-03-01DOI: 10.5194/egusphere-egu2020-11795
N. Schmerr, J. Richardson, R. Ghent, M. Siegler, K. Young, L. Montési
The Moon, near Earth asteroids, and the martian moons Phobos and Deimos are all Solar System Exploration Research Virtual Institute (SSERVI) target bodies as they present a wide variety of natural wonders and are potential hosts to resources that will one day enable human exploration of the Solar System. Our SSERVI project, Geophysical Exploration of the Dynamics and Evolution of the Solar System (GEODES) is exploring a suite of natural resources on these bodies through multidisciplinary geophysical investigations. Geophysical methods have been incredibly successful in identifying resources on Earth as they provide a means of characterizing and mapping the sub-surface using data gathered on and above the surface. We focus our geophysical investigations on four essential resources that will enable future human space exploration: I) Lava tubes and void spaces, capable of hosting people and infrastructure; II) Ice deposits, subsurface bodies that can be used for volatile extraction; III) Regolith, which covers the surface of all target bodies, potentially serving as a building material but also presenting a hazard to human and robotic operations and health; and IV) Magma-tectonic Systems, which mobilize, concentrate, and trap volatiles, unique rocks, and ore minerals.
Our investigations use an "orbit to outcrop" approach by analyzing existing geophysical data, conducting geophysical exploration of field analog sites on Earth, and creating models that link these analog studies to SSERVI target bodies. Analog sites enable the development, ground-truthing, and integration of (a) exploration strategies, (b) multiple geophysical methods, and (c) modeling capabilities. The GEODES team is integrating field methods and results to create a scientific modeling framework that facilitates the joint inversion of data sets and will share these results with the community via cyber infrastructure, data management, and outreach. The unifying goal behind GEODES is to develop geophysical detection and exploration methods to characterize these natural resources and enable in situ resource utilization at SSERVI target bodies.
{"title":"Geophysical Exploration of the Dynamics and Evolution of the Solar System (GEODES)","authors":"N. Schmerr, J. Richardson, R. Ghent, M. Siegler, K. Young, L. Montési","doi":"10.5194/egusphere-egu2020-11795","DOIUrl":"https://doi.org/10.5194/egusphere-egu2020-11795","url":null,"abstract":"\u0000 <p>The Moon, near Earth asteroids, and the martian moons Phobos and Deimos are all Solar System Exploration Research Virtual Institute (SSERVI) target bodies as they present a wide variety of natural wonders and are potential hosts to resources that will one day enable human exploration of the Solar System. Our SSERVI project, Geophysical Exploration of the Dynamics and Evolution of the Solar System (GEODES) is exploring a suite of natural resources on these bodies through multidisciplinary geophysical investigations. Geophysical methods have been incredibly successful in identifying resources on Earth as they provide a means of characterizing and mapping the sub-surface using data gathered on and above the surface. We focus our geophysical investigations on four essential resources that will enable future human space exploration: <strong>I)</strong> Lava tubes and void spaces, capable of hosting people and infrastructure; <strong>II)</strong> Ice deposits, subsurface bodies that can be used for volatile extraction; <strong>III)</strong> Regolith, which covers the surface of all target bodies, potentially serving as a building material but also presenting a hazard to human and robotic operations and health; and <strong>IV)</strong> Magma-tectonic Systems, which mobilize, concentrate, and trap volatiles, unique rocks, and ore minerals.</p><p>Our investigations use an \"orbit to outcrop\" approach by analyzing existing geophysical data, conducting geophysical exploration of field analog sites on Earth, and creating models that link these analog studies to SSERVI target bodies. Analog sites enable the development, ground-truthing, and integration of (a) exploration strategies, (b) multiple geophysical methods, and (c) modeling capabilities. The GEODES team is integrating field methods and results to create a scientific modeling framework that facilitates the joint inversion of data sets and will share these results with the community via cyber infrastructure, data management, and outreach. The unifying goal behind GEODES is to develop geophysical detection and exploration methods to characterize these natural resources and enable in situ resource utilization at SSERVI target bodies.</p>\u0000","PeriodicalId":149285,"journal":{"name":"84th EAGE Annual Conference & Exhibition","volume":"82 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126167935","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}
Pub Date : 1900-01-01DOI: 10.3997/2214-4609.2023101478
E. Ranaee, F. Inzoli, A. Guadagnini
{"title":"Role of Methanogenesis and Sulfate Reduction in Lifetime Performance of Hydrogen Storage in Depleted Gas Reservoirs","authors":"E. Ranaee, F. Inzoli, A. Guadagnini","doi":"10.3997/2214-4609.2023101478","DOIUrl":"https://doi.org/10.3997/2214-4609.2023101478","url":null,"abstract":"","PeriodicalId":149285,"journal":{"name":"84th EAGE Annual Conference & Exhibition","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115289675","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}
Pub Date : 1900-01-01DOI: 10.3997/2214-4609.2023101459
H. Jiale, H. Jianping, Y. Jidong, M. Xinru, C. Liang
{"title":"Efficient Reverse Time Migration Method in TTI Media Based on a Pure Pseudo-Acoustic Wave Equation","authors":"H. Jiale, H. Jianping, Y. Jidong, M. Xinru, C. Liang","doi":"10.3997/2214-4609.2023101459","DOIUrl":"https://doi.org/10.3997/2214-4609.2023101459","url":null,"abstract":"","PeriodicalId":149285,"journal":{"name":"84th EAGE Annual Conference & Exhibition","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123042258","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}
Pub Date : 1900-01-01DOI: 10.3997/2214-4609.202310186
N. Nikmardan, H. Mehdikhani, A. Edalatiankarbasi, E. Mohammadi, M. Karbalaeeakbari
{"title":"Simulation Analysis of Oil Recovery by Imbibition and Gravity Drainage in a Single-Block with Surrounding Fracture","authors":"N. Nikmardan, H. Mehdikhani, A. Edalatiankarbasi, E. Mohammadi, M. Karbalaeeakbari","doi":"10.3997/2214-4609.202310186","DOIUrl":"https://doi.org/10.3997/2214-4609.202310186","url":null,"abstract":"","PeriodicalId":149285,"journal":{"name":"84th EAGE Annual Conference & Exhibition","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123110963","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}
Pub Date : 1900-01-01DOI: 10.3997/2214-4609.202310971
X. Guo, G. Di, J. Gao, H. Wang, Q. Chen
{"title":"Application of multi-wave seismic data in the identification of dolomite of the Qixia Formation, Sichuan basin","authors":"X. Guo, G. Di, J. Gao, H. Wang, Q. Chen","doi":"10.3997/2214-4609.202310971","DOIUrl":"https://doi.org/10.3997/2214-4609.202310971","url":null,"abstract":"","PeriodicalId":149285,"journal":{"name":"84th EAGE Annual Conference & Exhibition","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123129215","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}
Pub Date : 1900-01-01DOI: 10.3997/2214-4609.202310553
P. Trinh, D. Rappin, M. Amri
{"title":"4D-Petro Elastic Model calibration – A new way to look at dynamic reservoir properties","authors":"P. Trinh, D. Rappin, M. Amri","doi":"10.3997/2214-4609.202310553","DOIUrl":"https://doi.org/10.3997/2214-4609.202310553","url":null,"abstract":"","PeriodicalId":149285,"journal":{"name":"84th EAGE Annual Conference & Exhibition","volume":"88 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124397415","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}
Pub Date : 1900-01-01DOI: 10.3997/2214-4609.202310830
K. Wang, T. Hu, J. Liu, Z. Wei
{"title":"Internal Multiple Suppression Using a Physics-Informed Neural Network","authors":"K. Wang, T. Hu, J. Liu, Z. Wei","doi":"10.3997/2214-4609.202310830","DOIUrl":"https://doi.org/10.3997/2214-4609.202310830","url":null,"abstract":"","PeriodicalId":149285,"journal":{"name":"84th EAGE Annual Conference & Exhibition","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121832801","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}
Pub Date : 1900-01-01DOI: 10.3997/2214-4609.202310278
D. Rovetta, M. Dukalski, A. Kontakis
{"title":"Quantum annealer-assisted residual refraction statics estimation on the SEAM Arid model dataset","authors":"D. Rovetta, M. Dukalski, A. Kontakis","doi":"10.3997/2214-4609.202310278","DOIUrl":"https://doi.org/10.3997/2214-4609.202310278","url":null,"abstract":"","PeriodicalId":149285,"journal":{"name":"84th EAGE Annual Conference & Exhibition","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124286328","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}
Pub Date : 1900-01-01DOI: 10.3997/2214-4609.202310854
Z. Qing, Z. Heng, Y. Tao, Y. Qian, W. Feiteng, W. Li
{"title":"Fault identification based on variational mode decomposition and improved C3 coherence algorithm","authors":"Z. Qing, Z. Heng, Y. Tao, Y. Qian, W. Feiteng, W. Li","doi":"10.3997/2214-4609.202310854","DOIUrl":"https://doi.org/10.3997/2214-4609.202310854","url":null,"abstract":"","PeriodicalId":149285,"journal":{"name":"84th EAGE Annual Conference & Exhibition","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125236974","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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