Numerical calculations of elastic constants of sedimentary strata in triclinic approximation based on vertical seismic profiling data
It has been firstly determined the symmetry and complete component set of tensor matrix of elastic constants and elastic compliances by inversion of radial velocity indicatrices for quasi-longitudinal, "quick" and "slow" quasi-transverse waves that are obtained according to the V...
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| Дата: | 2015 |
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| Автори: | , , |
| Формат: | Стаття |
| Мова: | Ukrainian |
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Subbotin Institute of Geophysics of the NAS of Ukraine
2015
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| Назва журналу: | Geofizicheskiy Zhurnal |
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journalsuranua-geofizicheskiy-article-1111052020-10-07T11:39:25Z Numerical calculations of elastic constants of sedimentary strata in triclinic approximation based on vertical seismic profiling data Prodayvoda, G.T. Kuzmenko, P. Vyzhva, A. azimuthal anisotropy elastic constants symmetry seismic waves It has been firstly determined the symmetry and complete component set of tensor matrix of elastic constants and elastic compliances by inversion of radial velocity indicatrices for quasi-longitudinal, "quick" and "slow" quasi-transverse waves that are obtained according to the VSP method in the standard acoustic coordinate system. It was established that the elastic constants of clay strata have planar triclinic symmetry and carbonate strata have axial rhombic symmetry. The value of the elastic anisotropy integral coefficient is nearly 22 %. Longitudinal axis and acoustic normal of sedimentary strata were firstly determined according to field seismic survey. The estimation errors of elastic symmetry approximation for sedimentary strata by models with transversely isotropic and orthorhombic symmetry were calculated. It is proved that such approximation significantly changes the nature of the seismic wave azimuthal anisotropy and causes high error, which can significantly reduce the 3D seismic efficiency to the oil and gas exploration in the complex geological conditions. Subbotin Institute of Geophysics of the NAS of Ukraine 2015-06-01 Article Article application/pdf https://journals.uran.ua/geofizicheskiy/article/view/111105 10.24028/gzh.0203-3100.v37i3.2015.111105 Geofizicheskiy Zhurnal; Vol. 37 No. 3 (2015); 102-123 Геофизический журнал; Том 37 № 3 (2015); 102-123 Геофізичний журнал; Том 37 № 3 (2015); 102-123 2524-1052 0203-3100 uk https://journals.uran.ua/geofizicheskiy/article/view/111105/105979 Copyright (c) 2020 Geofizicheskiy Zhurnal https://creativecommons.org/licenses/by/4.0 |
| institution |
Geofizicheskiy Zhurnal |
| baseUrl_str |
|
| datestamp_date |
2020-10-07T11:39:25Z |
| collection |
OJS |
| language |
Ukrainian |
| topic |
azimuthal anisotropy elastic constants symmetry seismic waves |
| spellingShingle |
azimuthal anisotropy elastic constants symmetry seismic waves Prodayvoda, G.T. Kuzmenko, P. Vyzhva, A. Numerical calculations of elastic constants of sedimentary strata in triclinic approximation based on vertical seismic profiling data |
| topic_facet |
azimuthal anisotropy elastic constants symmetry seismic waves |
| format |
Article |
| author |
Prodayvoda, G.T. Kuzmenko, P. Vyzhva, A. |
| author_facet |
Prodayvoda, G.T. Kuzmenko, P. Vyzhva, A. |
| author_sort |
Prodayvoda, G.T. |
| title |
Numerical calculations of elastic constants of sedimentary strata in triclinic approximation based on vertical seismic profiling data |
| title_short |
Numerical calculations of elastic constants of sedimentary strata in triclinic approximation based on vertical seismic profiling data |
| title_full |
Numerical calculations of elastic constants of sedimentary strata in triclinic approximation based on vertical seismic profiling data |
| title_fullStr |
Numerical calculations of elastic constants of sedimentary strata in triclinic approximation based on vertical seismic profiling data |
| title_full_unstemmed |
Numerical calculations of elastic constants of sedimentary strata in triclinic approximation based on vertical seismic profiling data |
| title_sort |
numerical calculations of elastic constants of sedimentary strata in triclinic approximation based on vertical seismic profiling data |
| description |
It has been firstly determined the symmetry and complete component set of tensor matrix of elastic constants and elastic compliances by inversion of radial velocity indicatrices for quasi-longitudinal, "quick" and "slow" quasi-transverse waves that are obtained according to the VSP method in the standard acoustic coordinate system. It was established that the elastic constants of clay strata have planar triclinic symmetry and carbonate strata have axial rhombic symmetry. The value of the elastic anisotropy integral coefficient is nearly 22 %. Longitudinal axis and acoustic normal of sedimentary strata were firstly determined according to field seismic survey. The estimation errors of elastic symmetry approximation for sedimentary strata by models with transversely isotropic and orthorhombic symmetry were calculated. It is proved that such approximation significantly changes the nature of the seismic wave azimuthal anisotropy and causes high error, which can significantly reduce the 3D seismic efficiency to the oil and gas exploration in the complex geological conditions. |
| publisher |
Subbotin Institute of Geophysics of the NAS of Ukraine |
| publishDate |
2015 |
| url |
https://journals.uran.ua/geofizicheskiy/article/view/111105 |
| work_keys_str_mv |
AT prodayvodagt numericalcalculationsofelasticconstantsofsedimentarystrataintriclinicapproximationbasedonverticalseismicprofilingdata AT kuzmenkop numericalcalculationsofelasticconstantsofsedimentarystrataintriclinicapproximationbasedonverticalseismicprofilingdata AT vyzhvaa numericalcalculationsofelasticconstantsofsedimentarystrataintriclinicapproximationbasedonverticalseismicprofilingdata |
| first_indexed |
2025-07-17T11:05:16Z |
| last_indexed |
2025-07-17T11:05:16Z |
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