Blar i UiS Brage på forfatter "Tunkiel, Andrzej Tadeusz"
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Data-driven sensitivity analysis of complex machine learning models: A case study of directional drilling
Tunkiel, Andrzej Tadeusz; Sui, Dan; Wiktorski, Tomasz (Peer reviewed; Journal article, 2020-12)Classical sensitivity analysis of machine learning regression models is a topic sparse in literature. Most of data-driven models are complex black boxes with limited potential of extracting mathematical understanding of ... -
Drilling data quality improvement and information extraction with case studies
Geekiyanage, Suranga C. H.; Tunkiel, Andrzej Tadeusz; Sui, Dan (Peer reviewed; Journal article, 2020)Data analytics is a process of data acquiring, transforming, interpreting, modelling, displaying and storing data with an aim of extracting useful information, so that decision-making, actions executing, events detecting ... -
Impact of data pre-processing techniques on recurrent neural network performance in context of real-time drilling logs in an automated prediction framework
Tunkiel, Andrzej Tadeusz; Sui, Dan; Wiktorski, Tomasz (Peer reviewed; Journal article, 2021-11)Recurrent neural networks (RNN), which are able to capture temporal natures of a signal, are becoming more common in machine learning applied to petroleum engineering, particularly drilling. With this technology come ... -
Investigation and study on reinforcement learning for optimizing well path
Chowdhury, Samiul Ehsan (Master thesis, 2021)Designing an optimal path has been considered one of the key challenges for drilling engineers. Even for a group of competent engineers, it takes many months to plan a well. A robust optimized path can influence total cost ... -
Reference Dataset for Rate of Penetration Benchmarking
Tunkiel, Andrzej Tadeusz; Sui, Dan; Wiktorski, Tomasz (Peer reviewed; Journal article, 2020-10)In recent years, there were multiple papers published related to rate of penetration prediction using machine learning vastly outperforming analytical methods. There are models proposed reportedly achieving R2 values as ... -
Rotary steerable systems: mathematical modeling and their case study
Andrade, Caetano; Saavedra, Luis; Tunkiel, Andrzej Tadeusz; Sui, Dan (Peer reviewed; Journal article, 2021-05)Directional drilling is a common and essential procedure of major extended reach drilling operations. With the development of directional drilling technologies, the percentage of recoverable oil production has increased. ... -
Training-while-drilling approach to inclination prediction in directional drilling utilizing recurrent neural networks
Tunkiel, Andrzej Tadeusz; Sui, Dan; Wiktorski, Tomasz (Peer reviewed; Journal article, 2020)Machine Learning adoption within drilling is often impaired by the necessity to train the model on data collected from wells analogous in lithology and equipment used to the well where the model is meant to be deployed. ...