Time Processing Services
AVO Compliant Processing
Amplitude preservation grounded in structural certainty
Structural Imaging as the Foundation
While our primary focus at TBI is complex structure imaging, we also offer AVO (amplitude vs offset) compliant processing. However, we take a unique approach. Even when a primary processing objective is to preserve relative amplitudes, we will first produce an image using our well-established structural workflow.
There Are 2 Main Reasons for This
Benchmark
Our initial non-AVO compliant image will show the bandwidth, structural features, and signal-to-noise available in the data. It provides a benchmark to compare our AVO compliant results against.
Statics and velocities
we run extensive testing on statics and velocities, the two most important parameters in onshore processing. Our initial image allows us to focus on these important parameters.
Refining the Workflow for Amplitude Integrity
Once we finalize our structural image, we shift our focus to our AVO compliant processing, replacing the steps that compromise the relative amplitudes – mainly scaling and spectral whitening – with more amplitude friendly alternatives. We also revise our noise attenuation to more aggressively attack the remaining noise, particularly surface waves that compromise the amplitudes of the near offsets.
The Workflow Changes Focus on 3 Things
Noise Attenuation
More aggressive noise attenuation applied in multiple domains, with careful QCs to ensure minimal signal leakage
Amplitude Balancing
Surface-consistent amplitudes recomputed after additional noise attenuation
Spectral Shaping
Additional passes of surface consistent deconvolution combined with AVO-friendly spectral-shaping operators
Dual-Image Delivery
We will deliver both our initial structural and AVO-compliant images. Clients often find these products complimentary, using the structural image for horizon mapping before turning to the AVO compliant product for inversion work.