TY  - JOUR
AV  - none
ID  - scholars7060
TI  - Seismic spectrograms of an anelastic layer with different source-receivers configurations
KW  - anelasticity; diagram; hydrocarbon reservoir; layer; prestack migration; sandstone; scattering; seismic attenuation; seismic reflection; seismic response; source rock; vertical seismic profile; wave velocity
N1  - cited By 4
N2  - Thin and relatively thin anelastic layers (compared to the signal wavelength) generally represent hydrocarbon reservoirs, where the rock is a sandstone or a source rock saturated with brine, oil and gas. The study of the seismic response of these layers is important to detect the hydrocarbons on the basis of the reflection and transmission coefficients and the wave velocity and attenuation properties. Different seismic experiments (source-receiver configurations) can provide useful information to characterise its properties. In this work, we consider varying thicknesses and Q values of the layer and analyse the reflection and transmission coefficients. Moreover, we obtain spectrograms of surface seismic profiles and vertical and horizontal well profiles (VSP and HSP, respectively) to analyse their frequency content with offset due to variations of the attenuation properties of the layer. In addition, we compare the effects due to NMO stretching and intrinsic attenuation related to the low-frequency shadows (LFS) observed in real data after stacking, since LFS can have several causes. Ambiguity is present in this case, indicating that non-stretch NMO is required, otherwise an offset mute of the data may remove useful information regarding the intrinsic (physical) loss. © 2016, Saudi Society for Geosciences.
IS  - 5
PB  - Springer Verlag
SN  - 18667511
Y1  - 2016///
VL  - 9
JF  - Arabian Journal of Geosciences
A1  - Qadrouh, A.N.
A1  - Carcione, J.M.
A1  - Salim, A.M.A.
A1  - Tuan Harith, Z.Z.
UR  - https://www.scopus.com/inward/record.uri?eid=2-s2.0-84966293730&doi=10.1007%2fs12517-016-2429-3&partnerID=40&md5=1c8d17060a19c703b75f2228714a5f1d
ER  -