Pub Date : 2023-03-16DOI: 10.18303/2619-1563-2022-3-77
E. Sibiryakov
The paper proposed an algorithm for solving the coefficient inverse problem for the Helmholtz equation, which uses the minimization of the functional in the spectral domain. As an example, the parameters of layer on a half-space was found by using of a given function and its derivative on a plain upper boundary in 2D case.
{"title":"Coefficient inverse problem for the Helmholtz equation","authors":"E. Sibiryakov","doi":"10.18303/2619-1563-2022-3-77","DOIUrl":"https://doi.org/10.18303/2619-1563-2022-3-77","url":null,"abstract":"The paper proposed an algorithm for solving the coefficient inverse problem for the Helmholtz equation, which uses the minimization of the functional in the spectral domain. As an example, the parameters of layer on a half-space was found by using of a given function and its derivative on a plain upper boundary in 2D case.","PeriodicalId":190530,"journal":{"name":"Russian Journal of Geophysical Technologies","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121376225","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 : 2023-03-16DOI: 10.18303/2619-1563-2022-3-64
N. Nevedrova, A. Sanchaa, E. A. Shchekaeva
The article presents the results of the interpretation of unique archival data of vertical electrical soundings obtained in the Selenga basin of the Baikal rift zone in the 50s of the last century by the detachment of the Baikal geophysical expedition of the PGO "Irkutskgeofizika", using modern computer technologies. The purpose of this work is to refine the geoelectric characteristics of the sections according to the measurement profiles, as well as the structure of such seismically active structures as the Delta and Fofanovsky faults, the Proval Bay, the Tvorogovo-Istok uplift using a 2–3D inversion program with visual data visualization.
{"title":"3D model of the Selenga depression of the Baikal rift zone","authors":"N. Nevedrova, A. Sanchaa, E. A. Shchekaeva","doi":"10.18303/2619-1563-2022-3-64","DOIUrl":"https://doi.org/10.18303/2619-1563-2022-3-64","url":null,"abstract":"The article presents the results of the interpretation of unique archival data of vertical electrical soundings obtained in the Selenga basin of the Baikal rift zone in the 50s of the last century by the detachment of the Baikal geophysical expedition of the PGO \"Irkutskgeofizika\", using modern computer technologies. The purpose of this work is to refine the geoelectric characteristics of the sections according to the measurement profiles, as well as the structure of such seismically active structures as the Delta and Fofanovsky faults, the Proval Bay, the Tvorogovo-Istok uplift using a 2–3D inversion program with visual data visualization.","PeriodicalId":190530,"journal":{"name":"Russian Journal of Geophysical Technologies","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125191957","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 : 2023-03-16DOI: 10.18303/2619-1563-2022-3-85
I. A. Kovalenko, Y. I. Kuznetsova, A. Kalinin, A. Duchkov
A seismogeological model of the junction zone of the Nepa-Botuoba anteclise and the Ygyattinskaya depression was built based on the results of a comprehensive interpretation of deep drilling and seismic data. The position and propagation of regional high-rank faults have been specified, and a model of tectonic faults of the study area has been constructed. All faults of the study area were divided into three classes: those that cut the entire sedimentary cover; developed in the lower part of the sedimentary section, fading in the Cambrian salt pack; complicating the upper post-salt complex of rocks. Criteria for identifying thinning zones were developed and were made use of to identify oil and gas perspective objects within the Talakh, Ulakhan and Kharystan productive horizons.
{"title":"Seismogeological model of the terrigenous vendian deposits on the north–eastern slope of the Nepa-Botuoba anteclise","authors":"I. A. Kovalenko, Y. I. Kuznetsova, A. Kalinin, A. Duchkov","doi":"10.18303/2619-1563-2022-3-85","DOIUrl":"https://doi.org/10.18303/2619-1563-2022-3-85","url":null,"abstract":"A seismogeological model of the junction zone of the Nepa-Botuoba anteclise and the Ygyattinskaya depression was built based on the results of a comprehensive interpretation of deep drilling and seismic data. The position and propagation of regional high-rank faults have been specified, and a model of tectonic faults of the study area has been constructed. All faults of the study area were divided into three classes: those that cut the entire sedimentary cover; developed in the lower part of the sedimentary section, fading in the Cambrian salt pack; complicating the upper post-salt complex of rocks. Criteria for identifying thinning zones were developed and were made use of to identify oil and gas perspective objects within the Talakh, Ulakhan and Kharystan productive horizons.","PeriodicalId":190530,"journal":{"name":"Russian Journal of Geophysical Technologies","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127480602","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 : 2023-03-16DOI: 10.18303/2619-1563-2022-3-34
V. Timofeev, A. Timofeev, V. Semibalamut
The paper presents the results of velocity observations for current deformation in underground gallery, In wells and on earth surface. Different instruments were used: short-base quarts tiltmeters and laser extensometers, sensors of water level with meters base, and long-base sensors (spacy geodynamic instruments with kilometers bases). Coseismic deformation jumps obtained (up to 10–6) at Baikal and Altay regions. Annual velocities (at 5·10–8 level) were registered at Baikal and Altay.
{"title":"Deformation measurement at Baikal and Altay regions","authors":"V. Timofeev, A. Timofeev, V. Semibalamut","doi":"10.18303/2619-1563-2022-3-34","DOIUrl":"https://doi.org/10.18303/2619-1563-2022-3-34","url":null,"abstract":"The paper presents the results of velocity observations for current deformation in underground gallery, In wells and on earth surface. Different instruments were used: short-base quarts tiltmeters and laser extensometers, sensors of water level with meters base, and long-base sensors (spacy geodynamic instruments with kilometers bases). Coseismic deformation jumps obtained (up to 10–6) at Baikal and Altay regions. Annual velocities (at 5·10–8 level) were registered at Baikal and Altay.","PeriodicalId":190530,"journal":{"name":"Russian Journal of Geophysical Technologies","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116948021","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 : 2023-03-15DOI: 10.18303/2619-563-2022-3-4
P. Dergach, G. Baranov, K. Karyukina, A. N. Drobchik
All magnetic elements that form a closed orbit and focus the beam of charged particles in the accelerator are installed on special precise and stable supports – girders. Like any mechanical system, the girder has its natural frequencies, at which the vibrations coming to it are amplified. To ensure the stability of the charged particle beam, it is important to understand how mechanical vibrations are transmitted from the floor to the magnetic element, since even small perturbations can lead to a worsening in the parameters of the charged particle beam. The article presents the results of experimental seismometric measurements of the girders for magnetic elements of the booster Siberian Circular Photon Source “SKIF”. Their natural frequencies are determined.
{"title":"Girder resonant properties analysis for the “SKIF” synchrotron","authors":"P. Dergach, G. Baranov, K. Karyukina, A. N. Drobchik","doi":"10.18303/2619-563-2022-3-4","DOIUrl":"https://doi.org/10.18303/2619-563-2022-3-4","url":null,"abstract":"All magnetic elements that form a closed orbit and focus the beam of charged particles in the accelerator are installed on special precise and stable supports – girders. Like any mechanical system, the girder has its natural frequencies, at which the vibrations coming to it are amplified. To ensure the stability of the charged particle beam, it is important to understand how mechanical vibrations are transmitted from the floor to the magnetic element, since even small perturbations can lead to a worsening in the parameters of the charged particle beam. The article presents the results of experimental seismometric measurements of the girders for magnetic elements of the booster Siberian Circular Photon Source “SKIF”. Their natural frequencies are determined.","PeriodicalId":190530,"journal":{"name":"Russian Journal of Geophysical Technologies","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116512465","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 : 2023-03-15DOI: 10.18303/2619-1563-2022-3-25
O. V. Nechayev, M. Epov, V. Glinskikh
The article considers a unified approach to modeling logging probes with both galvanic and induction electric field sources. This approach is based on the properties of the functional spaces used in the finite element method and allows for a single software implementation for various logging methods. As an example of the use of the proposed approach, the logging process in an anisotropic medium with a slope of the main axes of anisotropy is considered.
{"title":"A unified approach to three-dimensional modeling of the logging process by galvanic and induction probes in anisotropic media","authors":"O. V. Nechayev, M. Epov, V. Glinskikh","doi":"10.18303/2619-1563-2022-3-25","DOIUrl":"https://doi.org/10.18303/2619-1563-2022-3-25","url":null,"abstract":"The article considers a unified approach to modeling logging probes with both galvanic and induction electric field sources. This approach is based on the properties of the functional spaces used in the finite element method and allows for a single software implementation for various logging methods. As an example of the use of the proposed approach, the logging process in an anisotropic medium with a slope of the main axes of anisotropy is considered.","PeriodicalId":190530,"journal":{"name":"Russian Journal of Geophysical Technologies","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115813568","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 : 2023-03-15DOI: 10.18303/2619-1563-2022-3-13
Y. Stefanov, D. K. Zharasbaeva
The results of the analysis of experimental data on pseudotriaxial loading of full-size samples of black shale rocks of the Bazhenov Formation are presented. The experiments were carried out under conditions of uniaxial loading and at lateral compression pressures of 20 and 40 MPa. It is shown that in the considered load range, the deformation of the rock beyond the elastic limit proceeds in different modes: dilatancy and compaction. Despite the low porosity of the rock, the transition from dilatation to compaction occurs at a pressure not exceeding 34 MPa. Based on the analysis of the obtained data, the stages of deformation in the loading diagrams are distinguished and the parameters of the mathematical model with a combined limiting surface are determined, which describes the deformation process in dilatancy and compaction modes.
{"title":"Loading diagrams and parameters of the model of elastic-pseudoplastic deformation of black shale rocks of the Bazhenov formation","authors":"Y. Stefanov, D. K. Zharasbaeva","doi":"10.18303/2619-1563-2022-3-13","DOIUrl":"https://doi.org/10.18303/2619-1563-2022-3-13","url":null,"abstract":"The results of the analysis of experimental data on pseudotriaxial loading of full-size samples of black shale rocks of the Bazhenov Formation are presented. The experiments were carried out under conditions of uniaxial loading and at lateral compression pressures of 20 and 40 MPa. It is shown that in the considered load range, the deformation of the rock beyond the elastic limit proceeds in different modes: dilatancy and compaction. Despite the low porosity of the rock, the transition from dilatation to compaction occurs at a pressure not exceeding 34 MPa. Based on the analysis of the obtained data, the stages of deformation in the loading diagrams are distinguished and the parameters of the mathematical model with a combined limiting surface are determined, which describes the deformation process in dilatancy and compaction modes.","PeriodicalId":190530,"journal":{"name":"Russian Journal of Geophysical Technologies","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122272210","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 : 2022-12-29DOI: 10.18303/2619-1563-2022-2-77
M. Kanakov, V. Lapkovsky, V. Kontorovich, K. Kanakova, Yurij Shorohov
The article highlights the functionality of the W-SEIS software developed at the IPGG SB RAS, designed to interpret 2D/3D seismic and drilling data. The application consists of a set of interconnected modules and utilities, each of which can be used as an independent software product. W-SEIS is a cross-platform software, it is developed using a client-service architecture and has high performance and imposes minimal system requirements on computer equipment.
{"title":"W-SEIS interpretation software for seismic and well drilling data","authors":"M. Kanakov, V. Lapkovsky, V. Kontorovich, K. Kanakova, Yurij Shorohov","doi":"10.18303/2619-1563-2022-2-77","DOIUrl":"https://doi.org/10.18303/2619-1563-2022-2-77","url":null,"abstract":"The article highlights the functionality of the W-SEIS software developed at the IPGG SB RAS, designed to interpret 2D/3D seismic and drilling data. The application consists of a set of interconnected modules and utilities, each of which can be used as an independent software product. W-SEIS is a cross-platform software, it is developed using a client-service architecture and has high performance and imposes minimal system requirements on computer equipment.","PeriodicalId":190530,"journal":{"name":"Russian Journal of Geophysical Technologies","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114407765","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 : 2022-12-29DOI: 10.18303/2619-1563-2022-2-92
M. Fedorovich, S. S. Ivashinenko, A. Kosmacheva
In the work, a comprehensive interpretation of seismic materials and drilling data was carried out, sets of structural maps and isopach maps of seismogeological complexes were constructed, which served as the basis for structural-tectonic analysis and study of the history of the formation of the Srednetyungsky uplift, which controls gas deposits in the Upper Permian and Lower Triassic deposits. It is concluded that in the relief of the base of the Triassic, the Middle Tyung uplift was formed in the Cretaceous as a result of an increase in tectonic activity in the territory of the entire Vilyui hemisyneclise.
{"title":"Seismogeological model of the mesozoic–cainozoic sedimentary cover of the western part of the Vilyui hemisyneclise (by the example of the Srednetyungskoye field)","authors":"M. Fedorovich, S. S. Ivashinenko, A. Kosmacheva","doi":"10.18303/2619-1563-2022-2-92","DOIUrl":"https://doi.org/10.18303/2619-1563-2022-2-92","url":null,"abstract":"In the work, a comprehensive interpretation of seismic materials and drilling data was carried out, sets of structural maps and isopach maps of seismogeological complexes were constructed, which served as the basis for structural-tectonic analysis and study of the history of the formation of the Srednetyungsky uplift, which controls gas deposits in the Upper Permian and Lower Triassic deposits. It is concluded that in the relief of the base of the Triassic, the Middle Tyung uplift was formed in the Cretaceous as a result of an increase in tectonic activity in the territory of the entire Vilyui hemisyneclise.","PeriodicalId":190530,"journal":{"name":"Russian Journal of Geophysical Technologies","volume":"127 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127244758","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 : 2022-12-29DOI: 10.18303/2619-1563-2022-2-129
I. Moskaev
Features and main conclusions of publications devoted to the study of medium transverse-isotropic geoelectric models which are characterized by inclination of the electrical anisotropy axis relative to a logging tool are reviewed in this article. Such models can be defined either by horizontal and vertical conductivities (or their reciprocals, called resistivities) with a non-zero dip of a logging tool or by the conductivity tensor with the tilt of the principal axes.
{"title":"Accounting for tilted electrical anisotropy in numerical simulation and interpretation of resistivity logging data (analytical review based on national and foreign literature)","authors":"I. Moskaev","doi":"10.18303/2619-1563-2022-2-129","DOIUrl":"https://doi.org/10.18303/2619-1563-2022-2-129","url":null,"abstract":"Features and main conclusions of publications devoted to the study of medium transverse-isotropic geoelectric models which are characterized by inclination of the electrical anisotropy axis relative to a logging tool are reviewed in this article. Such models can be defined either by horizontal and vertical conductivities (or their reciprocals, called resistivities) with a non-zero dip of a logging tool or by the conductivity tensor with the tilt of the principal axes.","PeriodicalId":190530,"journal":{"name":"Russian Journal of Geophysical Technologies","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132200542","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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