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Monday, Jun 15, 4:00 AM CDT · 45 minutes

Leveraging Machine Learning to Improve Geological and Petrophysical Workflows

June 15, 2020 at 04:00:00 AM · Central Time (US & Canada)
About This Webinar

Machine learning (ML) uses advanced computer algorithms to better understand the relationships between large and multi-variable datasets. Machine learning is useful to geoscientists because it solves two problems: interpreting large volumes of data and understanding the relationship of various types of data at once.

One of the major tasks for geologists is to interpret/pick multiple formation tops from well logs over many hundreds to thousands of wells in a basin. It is very expensive and time consuming as well. Our method uses CNN (Convolutional Neural Network) to learn salient patterns in the well logs and then extrapolates to unseen logs. One of the main advantages of this algorithm is it gets significantly better with more training data.

Petrophysical evaluation of well logs is an essential tool for reservoir description and hydrocarbon resource evaluation. Well logs acquired in bad borehole conditions often exhibit poor quality which needs to be edited or removed. Complete suites of logs are required for many petrophysical models. When the curves are deficient they must either be acquired over the interval of interest to enable running a complete reservoir characterization workflow or estimated through the calculation of pseudo logs. Re-running of a well log tool is often expensive, so geoscientists and engineers must rely on pseudo log generation methods. Machine learning algorithms are useful to extract patterns and structures from historical data to predict the missing data. The advantage with ML techniques is that they can handle many logs of different types to glean the inter-relationships among the log and reservoir properties. ML algorithms use the well log data from the adjacent wells to learn the underlying behavior of the system without prior knowledge of the nature of relationships between well log data points. We present the machine learning methods that are being developed to improve well log analysis workflows.

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Featured Presenters
Webinar hosting presenter
Associate Director in Data Analytics at IHS Markit
Malleswar Yenugu is currently working as an associate director in data analytics at IHS Markit in Houston, USA. He obtained his PhD in geophysics from University of Houston. He received BS (Physics) and MS (Geophysics) degrees from Andhra University in India. He gained experience in seismic attribute analysis and reservoir characterization. He used integrated approaches from seismic, well log and cores for successful characterization of conventional and unconventional reservoirs. He published and presented at various international journals and conferences. He serves as an associate editor for Interpretation journal and as a special editor for Geophysics journal. His research interests include petrophysics, rock physics, geomechanics, reservoir characterization and implementing AI techniques. He is a member of SEG, AAPG, SPWLA, EAGE, and SPE.
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