SUMMARY Marine seismic vibrators were introduced in the early 1970’s but have not achieved wide commercial use probably due to the relative simplicity and versatility of marine air-gun sources. There has recently been a resurgence of interested in marine vibrators due to their low environmental impact and because they are more controllable and efficient than […]

Story from Valeria, Software Engineer InternshipHøvik – Summer 2021 When making any academic or career choices, I have always chosen what I truly enjoy. Therefore, being fond of mathematics and physics, studying engineering was a natural path for me. As a result, I am about to start on the final year of my master’s in […]

Story from Vegar, Mechanical Engineer InternshipHøvik – Summer 2021 My name is Vegar, and I am one of this year’s summer interns. I study for a master’s degree in product development and production (also known as mechanical engineering) and I am now finished with my third year. I have always liked creating stuff, whether it […]

Story from Emily, Supply Chain Internship Bergen – Summer 2021 The first thing I noticed when starting my Supply Chain internship at Shearwater was how I was immediately treated as an employee that could bring value to the company, and there was good overlap with tools used during my studies and during the COVID pandemic […]

INTRODUCTION The debate of why to move to cloud and when it makes sense to seems to be ubiquitous, but the question is asked uniquely by each organization depending on their starting point. Factors including a company’s compute needs, either for processing or data management, business constraints in place including legal and financial restrictions, the […]

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 […]