Synthetic seismograms in laterally heterogeneous, anelastic media by modal summation of P-SV-waves
نویسندگان
چکیده
منابع مشابه
Velocity Analysis for Laterally Heterogeneous Anisotropic Media
Oil, gas, and geothermal reservoirs, and overlying strata are often composed of anisotropic rocks. Proper treatment of anisotropy during the processing of seismic data not only helps to avoid distortions in reservoir imaging, but also provides estimates of the anisotropic coefficients, which carry valuable information about lithology and fracture networks. Accurate estimation of the velocity mo...
متن کاملMPI- and CUDA- implementations of modal finite difference method for P-SV wave propagation modeling
Among different discretization approaches, Finite Difference Method (FDM) is widely used for acoustic and elastic full-wave form modeling. An inevitable deficit of the technique, however, is its sever requirement to computational resources. A promising solution is parallelization, where the problem is broken into several segments, and the calculations are distributed over different processors. ...
متن کاملSeismic ray tracing and wavefront tracking in laterally heterogeneous media
One of the most common and challenging problems in seismology is the prediction of source-receiver paths taken by seismic energy in the presence of lateral variations in wavespeed. The solution to this problem is required in many applications that exploit the high frequency component of seismic records, such as body wave tomography, migration of reflection data and earthquake relocation. The pr...
متن کاملMulti-Component Separation of P-P and P-SV Waves by a Least-Squares Migration Method: Synthetic Tests on CDP Data
Separating P-P and P-SV waves can sometimes be a difficult task for multicomponent data. Simple FK filtering methods do not perform suitably if the moveout trajectory is similar for different events. Here the least-squares migration filtering (LSMF) method is modified to separate P-P and P-SV waves recorded in multicomponent CDP data set. We exploit the property that different wave types have d...
متن کاملFinite - Difference Seismograms for Sh Waves
The accuracy of the fi!lite-difference method for generating synthetic seismograms of SH wave propagation in cylindrically symmetric media is discussed. The finite-difference method has the advantage that arbitrary density and velocity fields in the medium may be specified. A point source is generated by a simple transformation of a line source. The accuracy of the finite-difference seismograms...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Geophysical Journal International
سال: 1989
ISSN: 0956-540X,1365-246X
DOI: 10.1111/j.1365-246x.1989.tb01688.x