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The SeisAble Benefits of CGG technologies and services are regularly featured in the industry press. Find out more by consulting our e-library of published industry articles. Narrow your search by entering at least one search criterion:

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Results: 168

Tailored Multi-Vessel Acquisition and DesignTailored Multi-Vessel Acquisition and Design
Seismic Profile, July, 2015
Jo Firth
©2015 www.seismicprofile.com
Summary
Successful development of known fields requires high-quality seismic data in order to accurately delineate the reservoir through processes such as seismic inversion and reservoir characterization studies. In the new oil price regime this has become even more important as oil companies try to keep the total cost of production down while at the same time optimizing the life of the field. Tailored seismic acquisition designs with complementary imaging technology matched to the local geology provide seismic data that better meets the objectives for each reservoir.
G&G integration enhances acquisition of multi-client studies offshore GabonG&G integration enhances acquisition of multi-client studies offshore Gabon
World Oil, July, 2015
Gregor Duval | Jo Firth
©2015 Gulf Publishing Company
Summary
A case study of the acquisition and background to the integrated multi-client geoscience project over the Gabon South basin.The deepwater area of the Gabon South basin is one of the last underexplored areas of the West Africa Atlantic Margin. CGG is acquiring and imaging a large broadband, multi-client 3D survey, covering over 25,000 km2 in this area, which will form the cornerstone of a major, integrated G&G study of the region.
Reverse Time Migration of Multiples: Applications and ChallengesReverse Time Migration of Multiples: Applications and Challenges
Leading Edge, July, 2015
Zhiping Yang | Jeshurun Hembd | Hui Chen | Jing Yang
©2015 SEG
Summary
Marine seismic acquisitions record both primary and multiple wavefields. In a typical processing sequence, multiple energy is removed from the data before migration. However, there may be valuable information contained in the multiple wavefield. To discover this hidden information, reverse time migration of multiples (RTMM) was proposed. We evaluated the advantages of RTMM through three different real data processing projects and identified three key advantages. Additionally, we present a synthetic study of two types of crosstalk noise that hinder the full potential of RTMM as well as propose corresponding practical strategies to handle them.
Highlighting Horda - recent developments over the Horda platformHighlighting Horda - recent developments over the Horda platform
Oilfield Technology, June, 2015
Idar Horstad | Jo Firth
©2015 Palladian Publications Ltd
Summary
An overview of the general oil exploration landscape in Norway with a description of the Horda survey, concentrating on the acquisition, but including references to the complete integrated geoscience package that will eventually be delivered
Horda Platform: Exploring the CretaceousHorda Platform: Exploring the Cretaceous
Geo Expro, May, 2015
Jaswinder Mann-Kalil
©2015 GeoPublishing Ltd
Summary
The main area of hydrocarbon exploration in the Northern North Sea has been within pre- and syn-rift Jurassic sandstones. This is with the exception of chalk reservoirs in the Ekofisk field and Palaeogene sand reservoirs of the Frigg field. Now, with ignited interest in the Horda Platform, and particularly after the discovery of the Grosbeak and Skarfjell oilfields, attention has been directed towards the hydrocarbon potential within post-rift Cretaceous sands. The prospectivity of the Cretaceous sands was demonstrated more than three decades ago with the Agat discoveries.
Seeing safely through to the subsaltSeeing safely through to the subsalt
Oilfield Technology, May, 2015
Luke Twigger
©2015 Palladian Publications Ltd
Summary
The May edition of Oilfield Technology is freely and widely distributed at the EAGE conference. CGG paid to appear on the cover and also got to contribute an article on a topic of our choice. This was designed to reflect our current advertising and marketing messaging. The main topic is recent advances in subsalt technology. We made reference to BroadSeis, StagSeis, RTM, FWI, dip-constrained channel tomography, Brazil/GoM data library and geohazards.
Central North Sea: Advances in Technology with CGG's Cornerstone dataCentral North Sea: Advances in Technology with CGG's Cornerstone data
GEO, May, 2015
Jaswinder Mann
©2015 GeoPublishing AS
Summary
There are a number of geophysical challenges when attempting to image the sub-surface in the Central North Sea. These consist of shallow anomalies, heavy multiple contamination and sharp velocity contrasts. With a combination of broadband data and CGG?s latest processing and imaging techniques, these challenges become significantly reduced.
PS imaging of ocean-bottom dataPS imaging of ocean-bottom data
Leading Edge, April, 2015
Lorenzo Casasanta | Sam Gray
©2015 SEG
Summary
We describe opportunities and challenges for imaging seismic data acquired using conventional marine sources and receivers located on the seafloor. Opportunities include the promise of greater imaging resolution than sea-surface acquisition and processing can offer, especially using P-wave to S-wave converted reflection energy (PS imaging). Challenges include effects of current seafloor receiver spacing, which can be large enough to negate the promised resolution gains. We use a synthetic dataset to illustrate possible imaging improvements that can result from seafloor acquisition, as well as image degradation that can result when seafloor receivers are separated by typical current distances.
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