Since I was a child, I was always fascinated with creative arts. I was drawn to the many forms of expression and I fell in love with it. Creativity is also something that runs within my family, growing up I took inspiration from the different circles of influence I found myself in. Ranging from drawing […]

SUMMARY The dip-dependency of the wavelet on migrated images can cause significant inaccuracies in the inverted impedances obtained from conventional inversion approaches based on 1D vertical convolutional modelling. Although the inaccuracies are dominant on the steeply dipping events, low-dip events may also suffer if they are contaminated with cross-cutting steep migration artefacts and smiles. An […]

SUMMARY State-of-the-art source de-signature technology uses near-field hydrophone recordings to achieve the ensemble of de-bubble, source de-ghosting and zero-phasing with one directional operator. This paper outlines average and shot-by-shot source de-signature strategies for apparition blended seismic data and their application to a triple-source apparition field data acquired in the Barents Sea We have observed that […]

SUMMARY We have investigated an implementation of Gaussian beam depth migration which images seismic data after being compressed by a digital wavelet transform. Conventional Gaussian beam migration consist of two main steps: (1) a local plane wave decomposition of the input seismic traces into directional components or beam traces; (2) mapping of each beam trace […]

SUMMARY This paper discusses a field test of seismic apparition, a simultaneous source technique for marine airgun sources that uses modulation to facilitate source separation. The first part of the paper focuses on the design of the modulation codes. The second part introduces a field test where a single line of 3D data was acquired […]