Abstract
Gas cavities are deposits of gas, which monitoring is a very important problem for the geological surveys. The determination of the number of gas cavities from seismograms is an important problem, which solution is not possible without extra processing of the seismograms. In this work, we numerically solved the problem of exploring the influence of the number of gas cavities on the modelling results. We investigated the possibility of determining the number of gas cavities, specified in the initial problem description of the direct problem, by the results of solving the direct problem of seismic prospecting. In addition, we carried out the comparison of wave fields of the velocity module distribution and seismograms for further revealing the presence of gas cavities.
Similar content being viewed by others
REFERENCES
A. I. Obzhirov, ‘‘Seismotectonic origin of earth degassing, surface gas emission from subsoil and its participating in geological processes in the sea of Okhotsk,’’ Actual Probl. Oil Gas 4, 23 (2018).
V. L. Syvorotkin, ‘‘Deep degassing of the Earth and geo-ecological problems in frontier areas of Russia,’’ in Space, Time and Boundaries, Al’man. Pr-vo Vremya, Spec. Iss. 3, 1 (2013).
V. F. Buslayev, Z. A. Vasilyeva, and I. I. Sharovar, ‘‘Modeling of heat mass transfer in the well while drilling in frozen and gas hydrate layers to prevent emergency of gas blowouts,’’ Earth’s Cryosphere 8 (4), 72–77 (2004).
V. Bogoyavlensky, I. Bogoyavlensky, R. Nikonov, T. Kargina, E. Chuvilin, B. Bukhanov, and A. Umnikov, ‘‘New catastrophic gas blowout and giant crater on the Yamal peninsula in 2020: Results of the expedition and data processing,’’ Geosciences 11 (2), 71 (2021).
A. D. Dzyublo and M. S. Savinova, ‘‘Technogenic hydrocarbon emissions during the exposing of hydrate bearing formations,’’ Actual Probl. Oil Gas 4, 23 (2018).
P. V. Stognii, N. I. Khokhlov, and I. B. Petrov, ‘‘Numerical modelling of wave processes in multilayered media with gas-containing layers: The comparison of 2D and 3D models,’’ Dokl. Math. 100, 586–588 (2019).
P. V. Stognii, N. I. Khokhlov, and I. B. Petrov, ‘‘The numerical modeling of the elastic waves propagation in the geological media with gas cavities using the grid-characteristic method,’’ Sib. Zh. Vychisl. Mat. 23, 325–338 (2020).
G. N. Savin, Y. Y. Rushchitskii, and V. Novatskii, ‘‘The theory of elasticity,’’ Sov. Appl. Mech., No. 7, 808–811 (1971).
A. Favorskaya, M. Zhdanov, N. Khokhlov, and I. Petrov, ‘‘Modelling the wave phenomena in acoustic and elastic media with sharp variations of physical properties using the grid-characteristic method,’’ Geophys. Prospect. 66, 1485–1502 (2018).
K. M. Magomedov and A. S. Kholodov, Grid-Characteristic Numerical Methods (Nauka, Moscow, 1988) [in Russian].
A. M. Ivanov and N. I. Khokhlov, ‘‘Efficient inter-process communication in parallel implementation of grid-characteristic method,’’ in Proceedings of the Conference 50 Years of the Development of Grid-Characteristic Method (Springer, Cham, Switzerland, 2019), pp. 91–102.
Funding
The reported study was funded by the Russian Fund of Basic Researches according to the research project no. 19-07-00366.
Author information
Authors and Affiliations
Corresponding authors
Additional information
(Submitted by A. V. Lapin)
Rights and permissions
About this article
Cite this article
Stognii, P.V., Petrov, I.B. The Numerical Solution to the Problem of Exploring the Influence of Gas Cavities on the Modelling Results. Lobachevskii J Math 42, 2952–2958 (2021). https://doi.org/10.1134/S1995080221120301
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S1995080221120301