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Influence of Seismic Source Parameters on the Excitation Wavelet in Seismic Explorations Based on Numerical Simulation
Joint Authors
Xie, Lidong
Qi, Yanjun
Qiu, Ruohua
Wang, Yanhui
Dong, Zhaoxing
Liu, Honghua
Source
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-07-24
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
Explosives are the most common seismic source in seismic explorations, whose excitation effect is closely associated with their properties, weight, buried depth, and charging constitution.
This study analyzes the influence of seismic source parameters on the features of the explosion wavelet.
The explosion process of the seismic source in marine carbonate is numerically simulated with the finite element software LS-DYNA.
We consider three parameters, including buried depth, charge weight, and decoupling coefficient.
To verify the simulation outcomes, we also carry out field observations.
The appropriate buried depth of the explosive should be determined according to stratum lithology.
As the charge weight increases, low-frequency energy of the source wavelet increases rapidly.
The optimum charge weight is 16–18 kg, and the ideal charging structure is in a concentrated, short-column shape.
Compared with the buried depth and charge weight, the decoupling coefficient shows more noticeable influence on the excitation effect of the source wavelet, and the optimum coefficient lies between 2.5 and 3.
The results of this study may provide reference data for designing explosion parameters in field seismic explorations.
American Psychological Association (APA)
Qiu, Ruohua& Dong, Zhaoxing& Qi, Yanjun& Wang, Yanhui& Xie, Lidong& Liu, Honghua. 2020. Influence of Seismic Source Parameters on the Excitation Wavelet in Seismic Explorations Based on Numerical Simulation. Advances in Civil Engineering،Vol. 2020, no. 2020, pp.1-9.
https://search.emarefa.net/detail/BIM-1123590
Modern Language Association (MLA)
Qiu, Ruohua…[et al.]. Influence of Seismic Source Parameters on the Excitation Wavelet in Seismic Explorations Based on Numerical Simulation. Advances in Civil Engineering No. 2020 (2020), pp.1-9.
https://search.emarefa.net/detail/BIM-1123590
American Medical Association (AMA)
Qiu, Ruohua& Dong, Zhaoxing& Qi, Yanjun& Wang, Yanhui& Xie, Lidong& Liu, Honghua. Influence of Seismic Source Parameters on the Excitation Wavelet in Seismic Explorations Based on Numerical Simulation. Advances in Civil Engineering. 2020. Vol. 2020, no. 2020, pp.1-9.
https://search.emarefa.net/detail/BIM-1123590
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1123590