Features | PGS

Why More Azimuths is a Good Thing

Seeing under salt or other seismic penetration barriers is not the only reason why more azimuths may benefit seismic imaging. Extra survey azimuths also add vital information that facilitates more accurate modeling of complex structures. Acquisition in the pursuit of more azimuths is more complicated and demanding but it's worth it when the result is reduced risk related to expensive drilling decisions.

Bringing the Subsurface into Focus with Least-Squares Imaging

New PGS least-squares solutions are emerging that compensate for wavefield distortions and dramatically improve the imaging and the interpretation of complex structures.

Broadband Well Ties

GeoStreamer is regularly claimed to be the optimum pre-stack platform for seismic inversion and quantitative seismic interpretation studies, but what does this mean? 

Get a Time-Lapse Perspective

Five new PGS publications highlight fundamental areas where advances in marine 4D acquisition and processing are improving 4D repeatability and the detection of weak changes in reservoir state. They are presented for the first time at EAGE 2017 in Paris.

Dual-Sensor Stands High After Ten Years

Ten years on the 'marine broadband seismic' market, GeoStreamer® technology still reigns supreme because fundamental physics will always apply. The adoption of multi-sensor streamers by other large seismic companies is a testament to the virtues of GeoStreamer as the best geophysical platform. 

Holding all the Aces

As PGS welcomes its fourth Ramform Titan-class into the fold, it presents a younger, stronger, and more flexible fleet than ever before. Fleet renewal has made way for more efficiency and even more technology.

Introducing GeoStreamer PURE

Four new large-scale MultiClient products in our northern Europe data library are built with 100% GeoStreamer data. Each GeoStreamer PURE survey is a single contiguous dataset on the same grid, fully merged and depth processed with state-of-the-art workflows, delivering subsurface images with clarity, accuracy and reliability that is only possible with true broadband acquisition. 

Going Deeper with FWI

The PGS Full Waveform Inversion (FWI) solution uses diving waves, refractions and reflections together to deliver deep velocity model updates in a stable manner without relying on very long offsets. Conventional FWI high wavenumber artifacts and cycle skipping problems are avoided by using a combination of a clever imaging condition and elegant regularization within the inversion scheme.

Why SWIM in Shallow Water

Wide-tow seismic acquisition is popular in the current oil and gas market as it maps areas faster, and time is money. Unfortunately, it has severe drawbacks in shallow areas. With separated wavefield imaging it is now possible to enjoy the efficiency of wide-tow in any water depth.

GeoStreamer Complete Wavefield Seismic in the Browse Basin, Australia

GeoStreamer® data has profoundly and uniquely improved the geological understanding at all depth levels of the Browse Basin, from the very deep Permo-Triassic section to the shallow water bottom.  

Norway’s EMerging Market

The integrated interpretation of high resolution seismic and EM data is a reliable and effective method to unlock the Barents Sea. This is a region where EM has proven its worth in the past.

Celebrating Ramform Tethys - Why Another Titan Adds Long-term Value for PGS

The PGS fleet welcomed its third Ramform Titan-class into the fold on 17 March and a fourth is due in a year’s time. Despite the lowest oil price in two decades, fleet renewal now is good news long term for PGS and the industry.

Finding Value With Resistivity

From simultaneous EM and GeoStreamer acquisition, to integrated inversion and interpretation, the PGS Towed Streamer EM solution provides cost effective subsurface de-risking. With demonstrated production of more than 200 sq. km of 3D EM acquired in a single day, a new standard has been set for EM acquisition efficiency.

GeoStreamer: From Concept to Fleet-wide Technology Platform

From 2007 to 2015 PGS completed implementation of this revolutionary technology throughout its fleet. There have been significant learnings from the rollout and a flood of new acquisition and processing solutions have evolved to utilize its unique advantages.

More Accurate Subsurface Imaging - CWI

Seismic images need to provide accurate information from the seabed down to the reservoir. For without solid knowledge of the shallow geological environment there can be no certainty that our calculations regarding the deeper reservoir layers are correct.