Sorry, you need to enable JavaScript to visit this website.
Menu
Login

Technical Content

Technical Abstract
EAGE - European Association of Geoscientists and Engineers | Sergey Birdus (CGG), Alexey Artemov (CGG), Kai Zhao (CGG), Dana Iwachow (Woodside Energy), Cristina Angheluta (Woodside Energy) © 2017 EAGE | June

We present a workflow for 3D MAZ PSDM velocity modeling with tilted orthorhombic anisotropy. We focus on two aspects of depth-velocity modeling that are extremely important for seismic data from the NW Australian shelf: (1) high resolution adaptive seismic tomography to deal with strong ...

Technical Abstract
EAGE - European Association of Geoscientists and Engineers | Delycia Cook, Gordon Poole, Rob Schouten, Christopher Mallows, Krzysztof Cichy, Harry Mchugh © 2017 EAGE | June

It is well known that imaging of complex regions can be significantly improved with increased illumination in terms of offset and azimuth sampling. In this case study we illustrate how an existing large scale acquisition can be enriched by acquiring a second complementary survey ...

Technical Abstract
EAGE - European Association of Geoscientists and Engineers | James Cooper, Gordon Poole © 2017 EAGE | June

Absorption effects in the Earth attenuate high frequency seismic signal progressively with depth, reducing resolution and limiting the interpretability of the data. Conventional post-migration Q compensation methods often rely on artificial mechanisms to limit amplification of noise, at the expense of unintentionally restricting recovery ...

Technical Abstract
EAGE - European Association of Geoscientists and Engineers | Peter Denman (CGG), James Clough (CGG), Piotr Kurnik (CGG), Jay Taylor (CGG), Gioia Cattini (CGG), Andy Holman (CGG), Steve Hollingworth (CGG), Mark Ackers (Centrica), Svein Idar Forsund (Centrica), Chris Soufleris (Centrica) © 2017 EAGE | June

The North Sea is a mature basin where it is increasingly challenging to make new and economically viable discoveries. Even after discoveries have been made, it is vitally important to have high confidence in the reservoir’s extent and spatial location before committing to a ...

Technical Abstract
EAGE - European Association of Geoscientists and Engineers | Bing Bai, Yang Song, Yun Liu © 2017 EAGE | June

Complex overburden geology often creates difficulties in imaging reservoirs situated below. We used a field dataset from the GOM to demonstrate the benefits of combining FWI and LSM. We were able to generate a high-resolution velocity model through FWI, then use LSM to further ...

Technical Abstract
EAGE - European Association of Geoscientists and Engineers | Lorenzo Casasanta, Graham Roberts, Francesco Perrone, Andrew Ratcliffe, Gordon Poole, Yu Wang, Yi Xie © 2017 EAGE | June

Images from Kirchhoff migration can suffer from uneven illumination and contamination by migration artefacts. One of the issues is that migration is not a true inverse operation – it is based on the adjoint of the forward modelling operator. In contrast, least squares migration ...

Technical Abstract
EAGE - European Association of Geoscientists and Engineers | Gilles Lambare, Thierry Coleou, Jeremie Messud, Thibaut Allemand, Patrice Guillaume © 2017 EAGE | June

For long in seismic imaging, velocity model building and depth migration/inversion have produced information on the subsurface velocity model with no overlap in terms of resolved vertical wavelengths. The not covered wavelengths, among which the famous mid frequency gap, had then to be recovered ...

Technical Abstract
EAGE - European Association of Geoscientists and Engineers | Jeremie Messud, Patrice Guillaume, Gilles Lambare © 2017 EAGE | June

Assessing the uncertainty on the structural information contained in seismic images is critical for risk analysis in reservoir delineation, reserve estimation, and well planning. We propose here an original approach aiming at assessing structural uncertainties associated to ray based tomography. While it has similarities ...

Technical Abstract
EAGE workshop/forum/local conference | Tran Thinh To, Shuhong Cao, Jason Sun, Joe Zhou © 2017 EAGE | June

In this paper, we discuss the deblending result of a penta-source marine towed streamer data. The small dithering time renders the cross-talk noise to be semi-coherent in all domains, making this dataset challenging for existing deblending techniques. To tackle this data, we propose a ...