DISTINGUISH Workflow: A New Paradigm of Dynamic Well Placement Using Generative Machine Learning

• URL: http://arxiv.org/abs/2503.08509v1
• Date: Tue, 11 Mar 2025 15:00:13 GMT
• Title: DISTINGUISH Workflow: A New Paradigm of Dynamic Well Placement Using Generative Machine Learning
• Authors: Sergey Alyaev, Kristian Fossum, Hibat Errahmen Djecta, Jan Tveranger, Ahmed H. Elsheikh,
• Abstract summary: "DISTINGUISH" is a real-time, AI-driven workflow designed to transform geosteering.<n>The DISTINGUISH framework relies on offline training of a GAN model to reproduce relevant geology realizations.<n>The workflow automatically integrates real-time LWD data with a DDP-based decision support system.
• Score: 0.6990493129893112
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: The real-time process of directional changes while drilling, known as geosteering, is crucial for hydrocarbon extraction and emerging directional drilling applications such as geothermal energy, civil infrastructure, and CO2 storage. The geo-energy industry seeks an automatic geosteering workflow that continually updates the subsurface uncertainties and captures the latest geological understanding given the most recent observations in real-time. We propose "DISTINGUISH": a real-time, AI-driven workflow designed to transform geosteering by integrating Generative Adversarial Networks (GANs) for geological parameterization, ensemble methods for model updating, and global discrete dynamic programming (DDP) optimization for complex decision-making during directional drilling operations. The DISTINGUISH framework relies on offline training of a GAN model to reproduce relevant geology realizations and a Forward Neural Network (FNN) to model Logging-While-Drilling (LWD) tools' response for a given geomodel. This paper introduces a first-of-its-kind workflow that progressively reduces GAN-geomodel uncertainty around and ahead of the drilling bit and adjusts the well plan accordingly. The workflow automatically integrates real-time LWD data with a DDP-based decision support system, enhancing predictive models of geology ahead of drilling and leading to better steering decisions. We present a simple yet representative benchmark case and document the performance target achieved by the DISTINGUISH workflow prototype. This benchmark will be a foundation for future methodological advancements and workflow refinements.

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