AVO and Seismic Attribute Services - Integrated Services

RSI offers its clients a full complement of prestack (AVO and inversion) and poststack (Hilbert Transform) seismic attributes in Attrib3D®. AVO and seismic attributes are generated to derive seismic facies, used in areas without well control where seismic inversion isn't feasible and are used to compliment seismic inversion results.

RSI has released an Attrib3D® plug-in for Petrel® called Rock Solid Attributes™.

The majority of the seismic attributes listed below were developed at RSI by Dr. M. Turhan Taner as part of the Seismic Attributes Consortium and for a full description of each attribute and include their projected use in interpretation, please refer to Attributes Revisited.

Prestack (AVO Inversion) Attributes
  • P-wave Impedance Reflectivity
  • S-wave Impedance Reflectivity
  • P-wave Velocity Reflectivity
  • S-wave Velocity Reflectivity
  • Pseudo-Poisson's Reflectivity
  • Fluid Factor
  • Intercept
  • Gradient
  • Elastic Impedance Reflectivity
  • Lambda-Rho Reflectivity
  • Mu-Rho Reflectivity
 
Description: seismic attributes, amplitude, similarity, shale indicator, acoustic impedance
Poststack (Hilbert Transform) Attributes:
GABOR-MORLET ATTRIBUTES
  • Envelope of Sub Bands
  • Phase of Sub Bands
  • Trace of Sub Bands
  • Spectral Balance
  • Band limited Relative Acoustic Impedance
  • Mean Frequency of Spectra
  • RMS Frequency of Spectra
  • Bandwidth of Spectra
  • Skewness of Spectra
  • Kurtosis of Spectra
  • Maximum Sub-band of Envelope
  • Frequency of Maximum Sub-band Envelope
  • Phase of Maximum Sub-band Envelope
  • Q by Frequency Shift
  • Q by Spectral Ratio
  • Anomalous Absorption
  • High Absorption Low Impedance
  • High Absorption High Impedance
  • Low Absorption Low Impedance
  • Low Absorption High Impedance
INSTANTANEOUS ATTRIBUTES
  • Real part of complex trace
  • Imaginary part of complex trace
  • Trace envelope
  • Time derivative of the envelope
  • Second derivative of envelope
  • Instantaneous phase (between ± 180 degrees)
  • Instantaneous frequency
  • Envelope weighted instantaneous frequency (Hz)
  • Thin bed indicator
  • Acceleration of phase (cycles/sec/sec)
  • Dominant frequency (cycles per second)
  • Bandwidth (expressed in octaves)
  • Instantaneous Q factor
  • Normalized amplitude (cosine of the instantaneous phase)
  • Envelope amplitude modulated phase
  • Relative acoustic impedance

GEOMETRICAL ATTRIBUTES
  • Event Continuity
  • Sand/Shale Ratio
  • Chaotic Reflection
  • Parallel Bedding Indicator
  • Zone of Unconformity
  • Dip of maximum similarity
  • Dip Variance (average-local)
  • Similarity
  • Smoothed Similarity
  • Similarity Variance (average-local)
  • Smoothed dip of maximum similarity
  • Instantaneous dip
  • Instantaneous lateral continuity
  • Dip azimuth
  • Upper Bed Thickness (msec)
  • Upper Amplitude of Max Bed Thickness
  • Upper Morphology
  • Middle Bed Thickness (msec)
  • Middle Amplitude of Max Bed Thickness
  • Middle Morphology
  • Lower Bed Thickness (msec)
  • Lower Amplitude of Max Bed Thickness
  • Lower Morphology
  • Mean Curvature
  • Maximum Curvature
  • Minimum Curvature
  • Gaussian Curvature
  • Most Negative Curvature
  • Most Positive Curvature
  • Dip Curvature
  • Strike Curvature
WAVELET ATTRIBUTES
  • Wavelet envelope
  • Time derivative of the wavelet envelope
  • Second derivative of wavelet envelope
  • Wavelet phase (between ± 180 degrees)
  • Wavelet frequency
  • Envelope weighted wavelet frequency (Hz)
  • Acceleration of phase (cycles/sec/sec)
  • Dominant frequency (cycles per second)
  • Bandwidth (expressed in octaves)
  • Wavelet Q factor
  • Apparent polarity of wavelet
 

Facies Modeling