Zobrazeno 1 - 10
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pro vyhledávání: '"Vaughn Ball"'
Publikováno v:
GEOPHYSICS. 87:A49-A53
At a planar elastic discontinuity, the Zoeppritz scattering coefficients quantify the abrupt repartitioning of seismic wave energy among the various wave modes, whether up- or downgoing, or compressional or shear modes. In smooth (differentiable) ela
Publikováno v:
GEOPHYSICS. 83:N51-N65
A three-term (3T) amplitude-variation-with-offset projection is a weighted sum of three elastic reflectivities. Parameterization of the weighting coefficients requires two angle parameters, which we denote by the pair [Formula: see text]. Visualizati
Publikováno v:
The Leading Edge. 35:438-444
Quantitative relationships between true elastic properties are not always applicable to inverted elastic properties. We use the important example of two-term AVO reflectivity inversion to demonstrate this. AVO literature includes many examples of two
Publikováno v:
The Leading Edge. 35:399-404
The goal of AVO inversion is to estimate subsurface rock properties using seismic P-P reflection data as input. This article serves as a nonmathematical introduction to the topic. The reader will not find any equations here. Instead, we will use word
Publikováno v:
The Leading Edge. 34:1028-1035
A Bayesian linearized inversion (BLI) framework is used to analyze how uncertainty in the low-frequency model (LFM) affects the solution in prestack seismic inversion. Two related effects are considered: sensitivity addresses how a change in the LFM
Publikováno v:
The Leading Edge. 31:429-433
Controlled-source electromagnetics (CSEM) has been commercially applied for hydrocarbon exploration for more than 10 years. The normalized amplitude response (NAR), a common measure for CSEM anomaly strength, is the ratio of the CSEM response at the
Publikováno v:
Proceedings.
It cannot be assumed that rock property relationships that are valid for measured rock properties are also valid for rock property estimates obtained through seismic inversion. The particular case of two term inversion in the intercept-slope domain m
Publikováno v:
SEG Technical Program Expanded Abstracts 2013.
The presence of trends in rock property depth series (or time series) complicates common statistical analyzes such as regression and correlation coefficient analysis. If ignored, trended data can lead to unreliable regression results and, in some cas
Publikováno v:
SEG Technical Program Expanded Abstracts 2013.
Publikováno v:
SEG Technical Program Expanded Abstracts 2011.
Classic Amplitude versus Offset (AVO) theory has developed a sound framework for understanding seismic rock physics in a noise-free context. (Foster et al., 2010) However, it has long been understood that noise in the offset domain becomes correlated