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Cegal and PCA Ltd announce partnership

Cegal and Patrick Connolly Associates Ltd (PCA) have joined forces to offer seismic reservoir characterization services to the industry.

22.05.2017

Based in Cegal’s Aberdeen offices the team use the groundbreaking Blueback One Dimensional Stochastic Inversion (ODiSI) technology, combined with the full suite of Cegal applications, to provide the highest quality estimates of reservoir properties.

ODiSI offers a revolutionary approach to seismic inversion to provide fully probabilistic estimates of facies and reservoir properties with associated uncertainties.  Over 30 fields have so far been successfully inverted by Cegal and directly by oil companies using ODiSI.

“I have been immensely impressed with the ability of the Cegal team to get the most from this technology and to strive to get great results from even the most challenging datasets.  I look forward to working with them on many more projects,” says Patrick Connolly (PCA Ltd).

“It has been very exciting for Cegal to bring one of the leading inversion algorithms to the market.  We have already run a number successful inversion projects from basins around the globe, and it is extremely satisfying to deliver projects that provide not only commercial value but expand our clients’ technical understanding of challenging data sets. The value of ODiSI has not only been recognized but demonstrated. Working with the Cegal team and PCA to continuously develop and deliver this offering for our customers is both satisfying and enjoyable,” says John Sayer, Cegal Regional Sales Manager, UK & Africa.

“I have been immensely impressed with the ability of the Cegal team to get the most from this technology and to strive to get great results from even the most challenging datasets.  I look forward to working with them on many more projects,” says Patrick Connolly (PCA Ltd).

Commercialized in partnership with BP, ODiSI inverts jointly facies and rock properties (net-to-gross, porosity) by generating 1000s of pseudo-wells per seismic trace, matching each pseudo-well to the seismic data to find which combinations of lithological layering and reservoir properties best match. It requires no low frequency model, and no lateral constraints are applied. The properties ODiSI creates always contain uncertainty measurements, which in the latest ODiSI release (v2.0) can be used to create percentile net-to-gross volumes allowing, for example, high-net (P90) and low-net (P10) cases to be created. ODiSI v2.0 also contains a simplified parameterization methodology, numerous improvements and additions to the QC options (such as rock physics model overlays) and improved methods to quantify seismic scaling.  ODiSI inversions for a full reservoir typically run in a few hours on a single workstation, and can now be run over multiple workstations, on a cluster or even in the cloud.

Read more about the Blueback ODiSI software and the course for workflows in seismic reservoir characterization that we offer in cooperation with Patrick Connolly.  

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