[1]SUN Nan,SUN Yaochong,YU Shan.Numerical Simulation of Seismic Wave Field in medium with limited water[J].Journal of Seismological Research,2017,40(04):557-564.
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Numerical Simulation of Seismic Wave Field in medium with limited water
Journal of Seismological Research[ISSN 1000-0666/CN 53-1062/P] Volume:
40
Number of periods:
2017 04
Page number:
557-564
Column:
主动源专栏
Public date:
2017-09-20
- Title:
- Numerical Simulation of Seismic Wave Field in medium with limited water
- Keywords:
- finite difference; seismic wave field; numerical simulation; limited water; hypocentral location
- CLC:
- P315.3
- DOI:
- -
- Abstract:
- Accurate simulation of seismic propagation through in complex medium could provide theoretical support and basis for analyzing the data obtained from the active source detection and inversion of regional interior medium structure.Based on 2D models,we use the Finite difference method to simulate the seismic wave field propagation.The results show that the source stimulated in different medium could generate different wave characteristics,and the existence of limited water has a significant influence on the wave propagation.The wave field energy strengthen following the level increasing of the limited water,until a water depth with the energy starts to weaken,while the water depth is the optimal depth with the maximum energy.When source located on the side of the limited water,the records of stations in different sides with equal epicentral distance show obviously difference,and the wave from the land side has much more fast velocity and larger energy,and difference between the two sides is more obvious in horizontal component than that in vertical component.Consequently,we can use numerical simulation method to estimate the optimal water level and source location,and on this account we can provide theoretical support for the experiment of the air gun source stimulated in reservoirs.
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Last Update:
2017-09-20