Student Lecture Tour Europe: Freiberg University
Colour Perception and its Role in Seismic Interpretation
Cognition and Colour Perception: How it effects Seismic Interpretation
Dr. Gaynor S. Paton
Seismic interpretation is a key part of the analysis involved in understanding a petroleum reservoir system. Seismic data gives us information about the regional setting, the depositional system, the tectonic history, as well as detailed information about the reservoir itself, aiding understanding of volumetrics, compartmentalization and heterogeneity within reservoir units. Being able to see this information easily, and extract it in a form that can be taken through the subsurface workflow is a fundamental part of seismic interpretation.
The ability to understand the information provided by seismic data is influenced by the way in which the data is presented, as well as by our own intrinsic ability to identify shapes, colours and features. This means that factors such as cognition, colour perception, object context and object association can have a significant impact on our ability to interpret the geological information that can be extracted from geophysical data. This presentation covers how we can use an understanding of visual cognition in seismic interpretation and looks at the importance of features such as colour bars and data comparison techniques on how we perceive information.
The processes that we go through to interpret data can also influence the result that we get out. There is usually a marked difference between answers provided through using a purely objective, data driven approach to interpret seismic data, compared with those provided using a purely subjective, interpreter based approach. So this presentation also investigates where the balance lies between the two approaches and how methods that are both data driven and interpreter guided can be used to get an optimal result.
All these issues and techniques will be discussed and illustrated using exploration and development data sets from around the world. The presentation will be appropriate for both undergraduates and postgraduates, especially those with a geology, geophysics or earth science background.
Biography Gaynor S. Paton
Gaynor Paton is the Director of Geosciences at GeoTeric, a software company specialising in Cognitive Interpretation software. Gaynor received her BSc (Hons.) in Neuroscience from the University of Aberdeen and subsequently completed a PhD in Neurophysiology from the same institution. Her area of research was synaptic transmission in the neuronal pathways of the brain that are responsible for learning and memory
Gaynor joined GeoTeric in 2001 and started applying image processing and analysis techniques to seismic data in order to better image and interpret the geology that is in the seismic data. Her work ranged from exploration analysis of turbidite systems in West Africa to detailed analysis of development areas in the UK North Sea. She has also been involved in the development of new workflows to image faults in seismic data and for detecting and delineating different elements of carbonate systems. These workflows are in regular use by GeoTeric’s consultants and clients around the world.
Gaynor’s current focus is the development of interpretation software and workflows that work in a way that is cognitively intuitive and which maximises the benefits of data analysis whilst incorporating the knowledge and expertise of the interpreter. Gaynor has just completed the 2015-16 Student Lecture Tour of the Asia Pacific region on behalf of the EAGE.