Seismic Attributes by Prof. Kurt Marfurt Geophysical Insights Course

Target	Useful attributes
Faults and Folds	Dip azimuth and dip magnitude Coherence (semblance, variance, GST chaos, Sobel filters) Curvature (mean, maximum, minimum, most positive, most negative) Reflector rotation Reflector convergence
Fluvial-Deltaic Systems	Coherence Energy weighted coherent amplitude gradients (amplitude RMS, inline gradient, crossline gradient) Spectral decomposition Curvature and coherence (co-rendered) GLCM textures (energy, homogeneity, antropy)
Diapirism	Coherence and seismic amplitude (co-rendered) Curvature (maximum, most positive, etc) Reflector convergence
Shallow and deepwater systems	Coherence and amplitude gradient Curvedness and shape index Coherence and amplitude gradient (co-rendered) GLCM textures Peak spectral frequency, peak spectral magnitude, Sobel filter Reflector convergence azimuth, reflector convergence magnitude, and coherence (co-rendered)
Carbonates (reefs)	Coherence, shape index, and curvedness (co-rendered) Dip magnitude, peak spectral magnitude and frequency (co-rendered) Curvature (most positive, most negative, etc) GLCM textures (energy ratio similarity, homogeneity)
Naturally Fractured Reservoirs and Unconventional Reservoirs	ASPECTS: Thickness: spectral components Lithology: impedance Strain: curvature Diagenesis: textures