Mitigating migration artefacts

In our last post I showed our first ever depth migration of synthetic data over a simple syncline. Although the main reflector was correctly positioned the artefacts from both the line ends and the tails of the "bow tie" were distracting from the result. The swing artefact coming in from the line ends is quite obviously due to the truncation of the event and the resulting unbalanced migration operator. The common solution to this problem is to apply some sort of a spatial taper to the input data so that the closer you get to the end of the line…

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On the path to depth imaging

At HSS we are quite comfortable with our status as an emerging seismic processing service provider. Part of the territory therefore is that most of our work to date has taken place in the time domain whilst leaving the depth processing work to our more established competitors. This is something that is about to change! Several enquires at the recent AEGC 2019 made us realise that there was an opportunity to provide some depth migration services if we add the requisite algorithms to our toolbox. Depth imaging has always been on our radar so there was a tentative plan already…

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