Technical Library

In May 2018 Ramform Sterling completed PGS’ 25th true broadband GeoStreamer 4D survey since 2012. It’s the fourth 4D GeoStreamer survey from PGS this year and the rate is increasing.

Existing 3D seismic data is being processed by PGS in a new way to deliver impressive high resolution images for shallow hazard assessments. This saves time and money for oil and gas companies.

Towed Streamer EM data is monitored on board the vessel in real time as it is acquired. Once a sailline is complete offline QC is conducted, including a 1D QC inversion of every shot acquired. The...

PGS conducts EM feasibility studies in order to confirm that the Towed Streamer EM system will besensitive to changes in target resistivity. A typical feasibility study involves forward modeling for...

Towed Streamer EM delivers high density 3D CSEM data with exceptional acquisition efficiency. Daily acquisition rates in the order of 140 sq. km are frequently achieved withthe current record at over...

The PGS model uncertainty analysis tool helps mitigate the risk associated with target positioning and volumetrics. The workflow quantifies the uncertainty inherent in a final velocity model and the...

Full Waveform Inversion (FWI) is a methodology that seeks to find a high-resolution, high fidelity velocity model of the subsurface capable of matching individual synthetic seismic waveforms with an...

Complete Wavefield Imaging (CWI) is a processing flow developed by PGS which integrates advanced technology for high-resolution velocity model building and depth imaging using reflections,...