Exploration Insights December 2019/ January 2020 | Page 16

16 | Halliburton Landmark core, the play is thin (15–30 m) and production is limited by, and highly sensitive to, play thickness (Table 3). In the northeastern core, the play is considerably thicker (100–200 m), but production is limited by reservoir porosity, reflected in the high importance weighting of porosity (Table 3). CONCLUSIONS » Random Forest classifier produces the most accurate ML models predicting initial production success of individual wells to 97% accuracy, providing insight into the plays from which the data are trained only. The potential for widespread application of this model increases as data are collected from a larger range of unconventional plays. » This ML method has application in the petroleum industry as a means to streamline production and eliminate expenditure on unnecessary data collection, providing a method of understanding which measurements are most important as defined by features most correlated to production. » Comparison of the Bakken and Marcellus plays demonstrates that production rate within two prolific resource plays can be sensitive to different subsurface variables and that this is fundamentally related to the geological differences between the plays. Characterization of geological heterogeneities is, therefore, integral to achieve success, both in U.S. plays and analogous plays worldwide. » We have found that pore pressure is highly influential in the production success of the majority of plays. However, importance between geological parameters and production does vary significantly between plays. This is fundamentally related to three geological heterogeneities between resource plays, as demonstrated by the comparison of the Bakken and Marcellus plays. Exploration Insights | 17 REFERENCES Production data used within this study is from ShaleWellCube (version 13-06-2019) and is provided courtesy of Rystad Energy. McGlade, C., Speirs, J. & Sorrell, S. (2013). Methods of estimating shale gas resources - Comparison, evaluation and implications. Energy. [Online]. 59. p.pp. 116–125. Available from: http://dx.doi.org/10.1016/j.energy.2013.05.031.EIA (2018). Permian Basin Wolfcamp Shale Play. (October). Flender, S. (2019). Data is not the new oil. [Online]. 2019. Towards Data Science. Available from: https:// towardsdatascience.com/data-is-not-the-new-oil- bdb31f61bc2d. Géron, A. (2017). Hands-On Machine Learning with Scikit- Learn & TensorFlow. 1st Ed. Sebastopol, CA: O’Reilly Media, Inc. Dimitriadis, S.I. & Liparas, D. (2018). How random is the random forest? Random forest algorithm on the service of structural imaging biomarkers for Alzheimer’s disease: From Alzheimer’s disease neuroimaging initiative (ADNI) database. Neural Regeneration Research. 13 (6). p.pp. 962–970. Patel, S. (2017). Chapter 2: SVM (Support Vector Machine) — Theory. [Online]. 2017. Medium. Available from: https:// medium.com/machine-learning-101/chapter-2-svm-support- vector-machine-theory-f0812effc72. Du, W., Du, W., Zhan, Z. & Zhan, Z. (2002). Building decision tree classifier on private data. Proceedings of the IEEE international conference on Privacy, security and data mining- Volume 14. [Online]. p.pp. 1–8. Available from: http://portal. acm.org/citation.cfm?id=850784. Jarvie, D.M. (2012). Shale Resource Systems for Oil Resource Systems: Part 2 - Shale-oil resource systems. AAPG Memoir. 97. p.pp. 89–119. Zagorski, W.A., Bowman, D.C., Emery, M. & Wrightstone, G.R. (2011). An overview of Some Key Factors Controlling Well Productivity in Core Areas of the Appalachian Basin Marcellus Shale Play *. 110147. p.p. 90122. DISCLAIMER This article is a synthesis based upon published data and information, and derived knowledge created within Halliburton. Unless explicitly stated otherwise, no proprietary client data has been used in its preparation. If client data has been used, permission will have been obtained and is acknowledged. Reproduction of any copyrighted image is with the permission of the copyright holder and is acknowledged. The opinions found in the articles may not necessarily reflect the views and/ or opinions of Halliburton Energy Services, Inc. and its affiliates including but not limited to Landmark Graphics Corporation . Earth Model Award: Rewarding Excellence in Master’s Level Research The Earth Model Award is the culmination of an international geoscience competition that rewards excellence in master’s level research. It was established as the Neftex ® Earth Model Award in 2012, in affiliation with the Geological Society of London, to foster the link between industry and academia. The award ceremony for the 2018 Earth Model Award was held at Halliburton’s LIFE2019 conference in Houston, Texas, U.S.A. This year, the winner of the Earth Model Award was Aasmund Olav Løvestad from the University of Bergen for his master’s project on fluvial reservoirs in Utah. The second prize went to James Lovell-Kennedy from the University of Manchester, and third place was awarded to Landon Lockhart from the University of Texas. Here’s what our winners have to say about the 2018 Earth Model Award… It was a great honor to receive the 2018 Earth Model Award for excellence in master’s level research for the work I did on fluvial reservoirs in Utah. Emerging researchers are fortunate to have the encouragement and support offered by awards such as this. The LIFE2019 conference was wonderful and a great opportunity to meet members of the international industry, and to discover what the leading universities in the field are focusing on. My deepest gratitude goes to The Geological Society of London and Halliburton Landmark for this award. Finally, my sincere thanks and appreciation in supporting my research go to The University of Bergen and to Associate Professor Christian Haug Eide for his great mentorship and invaluable insight, which were truly inspiring. ~ Aasmund Olav Løvestad, University of Bergen Upon completion of my master’s degree at the University of Manchester, I responded to the advert from Halliburton Landmark and submitted my thesis to the 2018 Earth Model Award competition. My thesis looked at ‘Assessing the provenance and contribution of local versus regional drainage systems for the Upper Triassic fluvial deposits, High Atlas, Morocco.’ It involved collaboration between the North Africa Research Group (NARG) and Sound Energy to try to improve understanding of reservoir quality fluvial sands in the Triassic of Eastern Morocco. To my surprise, I won second place in the 2018 Earth Model Award, and as a result was invited to attend LIFE2019 in Houston, Texas, where I was given the chance to present my master’s research to the conference attendees. By taking part in the Earth Model Award program and attending LIFE2019, I had a fantastic opportunity to see the work Halliburton is doing, allowing me to appreciate the value of industry-academic collaboration in solving the challenges facing the oil and gas industry. I would like to thank the organizers of the award and all Halliburton staff, who were incredibly helpful, friendly, and supportive throughout the process. ~ James Lovell-Kennedy, University of Manchester It was a great honor to win the 2018 Earth Model Award and to present my research at the Halliburton LIFE2019 conference. This award affirms that I am on the right path, pursuing what I love and am passionate about. I was also pleased that UT Austin and my advisors were recognized through this award. My thesis was a group effort that required a tremendous amount of time and energy on behalf of everyone involved. I had a memorable time attending LIFE2019 and the award ceremony. The conference was highly informative and well-organized. I enjoyed the opportunity to meet and socialize with professionals in the oil and gas industry, and to celebrate the great achievements of the other Earth Model Award winners. I want to thank Halliburton for sponsoring the event and rewarding the next generation of geoscientists for their hard work. ~ Landon Lockhart, University of Texas