Schlumberger

Vector High-Fidelity (VHF) Signal Enhancement

Poststack enhancement of 3D marine, ocean-bottom, or land seismic volumes

The Vector High-Fidelity signal enhancement technique improves the natural bandwidth of the seismic survey by simultaneously optimizing the amplitude and frequency content. The result is better temporal resolution, reduced noise, and extended usable bandwidth.

The noise reduction technique models and enhances buried signals within a noisy, lower-frequency 3D volume. The process assumes that within a seismic volume, wavelet response deviations are either caused by noise or are valid geologic perturbations.

Conventional  signal enhancementVHF signal enhancement

VHF provides noise attenuation and improved frequency content for accurate mapping of the geology and superior fault definition, with input phases that match output phases.

The amplitude- and phase-preserving characteristics of the VHF technique improve resolution for structural interpretation and signal conditioning for both prestack and poststack seismic inversion. This additional structural detail can be beneficial during the extraction of seismic attributes (e.g., variance for edge detection to expose previously unobserved reservoir characteristics).

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