Kees worked for Shell for 35 years as research engineer in Netherlands and USA, and as production engineer in Oman, Malaysia, and The Netherlands. Kees specialized in gas well performance and deliquification, and since his retirement late 2020, has been internationally active as independent trainer and consultant on those topics.

Abstract:
Gas wells will be producing for decades to come and hence a solid understanding of gas well performance remains important. This master class will present tips and tools for monitoring and modelling existing gas well performance. It will cover topics such as determining reservoir size, tracking (multi-zone) inflow performance, and diagnosing and sustaining (liquid loading) outflow performance. Practical examples will be used to demonstrate key points and short exercises will serve to challenge your insights.

Bas Hengeveld is a seasoned drilling engineering professional with over 25 years of international experience in the oil and gas industry, including notable positions at Shell and various independent companies. Bas's expertise spans drilling operations, engineering, safety, and instructional roles, with hands-on experience in both rig environments and corporate settings. He has demonstrated his skills across a variety of locations, from North Sea platforms to Middle Eastern deserts, handling high-pressure / high-temperature projects, complex drilling requirements, and stringent safety regulations. With a wealth of experience and a focus on safety and teamwork, Bas is a proven leader in drilling engineering and a trusted instructor in well control and related areas. He holds a B.Sc. Hons Degree in Oil and Gas Technology and has certifications in IWCF Well Control and Advanced Safety Leadership

Abstract:
This presentation offers a comprehensive introduction to well engineering, designed for students and young professionals who are curious about the field or seeking to enhance their understanding of it.
In this 2-hour session, we'll explore the key concepts, technologies, and challenges in well engineering. Starting with the basics, we'll cover the well lifecycle, focusing on the design and planning stages. You'll learn about the critical factors involved in designing a well, including geological considerations, environmental factors and regulatory requirements.
Next, we'll dive into the drilling process, discussing the equipment used, drilling techniques, and common issues that engineers face on the job. We'll also touch upon the importance of well control and safety, offering insights into best practices to ensure a safe working environment.
Following drilling, we'll examine the various completion methods that allow wells to produce efficiently. To wrap up, we'll discuss suspension and well abandonment and the importance of regulatory compliance.
Throughout the presentation, you'll have the opportunity to ask questions and engage with real-world examples that illustrate key concepts in well engineering. By the end of the session, you'll have a good understanding of the well engineering process, an appreciation for the challenges and rewards of the field, and insights into potential career paths within the industry.

Jerome Amory is a geologist with over two decades of international exposure delivering integrated O&G energy projects across the full resource exploration and development lifecycle. He is now leveraging this experience to support the energy transition, with focus on deep geothermal energy systems.
Jerome graduated with an M.Sc. from Stanford University and worked for 24 years with Shell International. Since 2020 he has been focusing on transferring his skills in support of geothermal projects, helping the assessment and development of resources in the Netherlands, Alsace and southern Belgium. He has been the Geothermal Energy Lead at PanTerra since 2022.

Abstract:
This workshop is an introduction to some of the key subsurface elements impacting the maturation of deep geothermal projects, focusing on low to medium enthalpy systems which are typically used for direct heat distribution.
The first part of the workshop looks at the characteristics of two end-member deep geothermal systems: those targeting saline aquifers, and the ones aiming to develop faulted and fractured reservoirs systems.
The second part of the workshop focuses on the development of deep geothermal systems in the Netherlands, first looking at the main geothermal plays of the region, outlining the essential attributes of the typical geothermal doublets, and providing examples from some established projects. The most important reservoir characteristics will then be discussed, highlighting the performance threshold required to make projects viable as well as the critical elements of subsurface safety design.
The third part of the workshop will use simplified and practical exercises that illustrate and reinforce some the some of the key take-aways from the session.
This workshop is targeted toward experienced professionals and students who have a background in subsurface resource exploration and development, but who have not yet been exposed to geothermal projects.
This short session will provide them with a taste for some of the most important elements to consider in the evaluation of geothermal opportunities, as well as what makes the maturation of these of resources special, in particular when compared with traditional O&G projects.

Ben Dewever works for Shell since 2011 and previously held positions in Maersk Oil and Panterra Geoconsultants. He holds a PhD in Science (Geology) from Catholic University of Leuven and an MSc degree in Energy Management from the Robert Gordon University in Aberdeen. Ben is a senior geoscientist with a strong background in carbonate reservoir characterization and modelling. Two years ago, Ben switched from a hydrocarbon to a CCS focus and he currently holds a position as senior CCS geoscientist in Shell's CCS capability team.

Abstract:
Contrary to hydrocarbon projects where the gas or oil molecules need to be extracted from their geological residence, CO₂ storage projects require integrated subsurface teams to construct a safe and reliable home to welcome CO₂ molecules. The intent of this master-class is to show, through some conceptual thought exercises, the importance of integrated subsurface characterization and risk assessment that should contribute to future CO₂ storage projects operating effectively. We will touch on some of the critical physical, geological and engineering aspects that underpin subsurface CO2 storage projects and associated subsurface risk management.

Sanket Bhattacharya, Seismic Business Development Manager, joined Fugro in 2018. He has over 14 years of industry experience in seismic. As a growing Geophysicist, he was involved in technical assignments in India, USA, UK, Europe, Brazil, Uruguay, Greenland and East & West Africa. Having dealt with reservoir seismic, there was an essential transition that he had to go through to understand the nuances of the modern-day ultra-ultra-high resolution seismic. In his current role, Sanket is primarily responsible for solving the seismic challenges in offshore renewables and shaping Fugro's global strategic outlook in seismic. Sanket holds a Bachelor's degree in Geology and two Master's degrees in Applied Geology and Petroleum Geosciences.

Abstract:
Despite significant improvements in shallow marine-seismic imaging techniques in the last decade, it appears that the general ability to explicitly identify and de-risk shallow geohazards has not improved at the same rate. Currently, marine ultra-high-resolution surveys tend to be characterized by < 0.5m vertical resolution at or near the seabed. While this may be acceptable for broader study of shallow geohazards using seismic data, it does not have sufficient resolution for the very detailed information required for de-risking shallow hazards and the associated design and positioning of turbine foundations in offshore wind farms. The aim of this masterclass is to highlight typical challenges that are faced for designing wind farm foundations and how & why detailed seismic studies are critical to gain robust & tangible geological insights.

We are a group of five Applied Earth Science master students at the TU Delft with varying backgrounds, four focusing on geo-energy and one on earth observation. In the second year of our master we took the opportunity to set up a multidisciplinary project abroad. We ended up in Prague with a project related to geothermal energy in collaboration with the Karlova University in Prague, PUSH-IT and a geothermal site in Litoměřice. At this site EGS and BTES systems are developed. During the project we came into contact with several aspects of geothermal project development. Activities included using InSAR and GNSS data, performing well tests, investigating thermal properties of cores, applying geophysical methods such as ERT, surface waves analysis and seismic refraction and using gravity data.

Abstract:
This multidisciplinary project combines several aspects of geosciences. Such was the regional geology background summarized and linked to the borehole data. Slug tests were analyzed which indicated an open fracture and hydraulically connected to a permeable unit, but its length is undetermined.
Electrical resistivity tomography (ERT) and seismics were both applied to a location near the borehole to acquire lateral information about the subsurface. Seismic refraction tomography was conducted along a part of the same profile and strongly correlated with the ERT. Additionally, surface wave analysis of the same setup utilizing active and passive measurements resulted in a vertical s-wave velocity profile that can be used for future implementation of the planned Borehole Thermal Energy Storage (BTES) system.
Past analysis of geothermal regions has shown that exploration of geothermal energy causes surface displacement. It can also be observed during the drilling phase. Interferometric Synthetic Aperture Radar (InSAR) and Global Navigation Satellite System (GNSS) are valuable tools to monitor land surface changes. Measurement of surface deformation is one of its many applications. For this study, the above tools have been used to measure surface displacement in the region of Litoměřice.

Tom Bradley is a Senior Global Petrophysical Advisor with Baker Hughes, specialising in open hole formation evaluation. After graduating from The Royal School of Mines, Imperial College, London with a degree in Geology with Engineering Geology in 1996, he started his career in 1997 with Western Atlas International. Since then he has worked for Baker Hughes globally in a variety of technical and supervisory roles. Since 2005 he has been based in the Netherlands, and as part of his current role he is advising multiple stakeholders in the development of geothermal energy in the Netherlands and Europe.

Abstract:
The energy landscape is changing: Renewables are gaining in importance as a dependable energy source now that the environmental impact of fossil fuels is understood, and recent geopolitical events have shown the risks of over-reliance on non-domestic energy sources. Heat is a major energy demand. Geothermal energy can be a key contributor as it can supply constant dependable heat for a wide range of uses, ranging from low temperature heating through mid temperature industrial uses, to high enthalpies for power generation. It has additional benefits, that unlike other renewables such as wind and solar, it has essentially no reliance on varying prevailing conditions. However, even with recent industry growth, and increasing awareness of the importance of subsurface knowledge for geothermal, many stakeholders are still unaware of it's value in project success. Therefore, many projects still disappoint. The knowledge required is very similar to that for successful hydrocarbon exploration. Therefore, the expertise gained in the hydrocarbon industries over many years can be applied to geothermal projects to help increase their likelihood of success. However, because of the nature of the two industries, there is often a barrier that needs to be broken down before this knowledge can be shared. In this presentation, I discuss the basics of geothermal, how the subsurface information needed for success is very similar to oil and gas, show the value of data, how established oil and gas methodologies can be applied to geothermal, and how the hydrocarbon industries can contribute to the success of geothermal projects.

Annelotte Weert is a dedicated PhD candidate in Geology at the University of Naples 'Federico II' and holds a Master's degree in Geology and Geochemistry from VU University Amsterdam. Her research focuses on the tectono-stratigraphic reconstruction of the West Netherlands Basin and the characterization of its geothermal systems. Specializing in structural geology and seismic interpretation, Annelotte is passionate about applying her research to develop sustainable energy solutions.

Abstract:
The West Netherlands Basin, located beneath one of the Netherlands' most densely populated regions, is a prime location for geothermal energy exploration. Here, the syn-rift deposits of the Late Jurassic Nieuwerkerk Formation are the main geothermal target. The basin's geological history is defined by Mesozoic multi-phase rifting and Late Cretaceous basin inversion. Analysis of seismic and well data reveals two Jurassic rifting episodes that affected the fluvial-deltaic sedimentation of the Nieuwerkerk Formation. The formation of sedimentary accommodation space was influenced by multi-phase rifting and fault reactivation, which in turn affected the architecture of the fluvial system and resulted in significant heterogeneity in the formation's sandy facies. This study provides insights into the Nieuwerkerk Formation's depositional environment and structural evolution, aiding in risk mitigation for geothermal well planning in fluvial sandstone reservoirs within inverted rift basins.

Alison is a partner in ValVestris, where her focus is on helping organisations in the energy sector to make complex strategic decisions.
Prior to joining ValVestris, Alison worked for Shell for over 30 years in wide variety of roles - from exploration through to operations - and global locations with roles in Europe, Americas and Middle East, and working projects globally. Her main areas of expertise are in major project development and concept selection where she led and supported many mega projects, and well, reservoir and facilities management which she led globally. She was also the global head of Production Technology and Chemistry.
Her passion is helping others make complex decisions, especially dealing with volatile and uncertain environments such as the energy transition.

Johan is a partner in ValVestris, where his focus is on helping organisations in the energy sector to make complex strategic decisions.
Johan spent a vast part of his career working for Shell in many different roles and countries. He studied Mathematics and started in the oil industry as a reservoir engineer and then broadened into field development, project management, commercial and HSE. His last role was as Shell's Head of Internal Audit in which he got exposure to all business areas and worked closely with top management and the Board.
Johan's passion is to help clients in analysing highly complex situations and coming up with pragmatic solutions that create real value.

Abstract:
In today's world providing sufficient, affordable clean energy is not only important but increasingly challenging and complex. At ValVestris, we believe that making fast yet robust and transparent decisions in this volatile, rapidly evolving environment requires consideration of not only financial or technical but also environmental and socio-economic aspects.
When faced with these complexities, decision making in many companies becomes excessively slow due to the time taken to understand the new environment and temptation for over analysis. Alternatively, some companies resort to fast decision making by oversimplifying the uncertainties leading to decisions that may no be longer optimal as the environment changes. You can overcome both of these risks and develop novel and sustainable strategies by using new approaches based on world-class experience with state-of-the-art reasoning capabilities and methodologies.
Our unique synergy of expertise and world-class scenario approaches helps companies make complex robust decisions fast. Our people have decades of senior level experience in addressing complex problems at the highest level in the energy and other sectors. Best in class approaches from the energy industry are enhanced with visual reasoning methodologies developed by our partner, Parmenides, a world class institute working on complex decision making. Their approaches have been breakthrough in making complex decisions and deriving strategies in global financial institutions, governments, and Fortune 100 companies, but are novel to the energy sector. We have recently upgraded these capabilities using a unique, world-first AI approach to turbo-boost both the speed and quality of the decisions.
This presentation will provide an insight into these methodologies and some example cases.
ValVestris - Our passion is helping clients deliver best-in-class results for complex problems fast.

Matteo began his 20+ year career as Petroleum Engineer applying Data Mining technologies in various fields of the O&G industry. Matteo focused on developing and integrating data with operation surveillance systems to address specific asset management requirements. In SLB, Matteo has worked in a number of positions related to Software Development, Asset Surveillance and Decision Making Support Systems.
Matteo holds an MSc. in Petroleum Engineering from the Mining University of Leoben in Austria.

Abstract:
Methane is a potent greenhouse gas that has more than 80 times the warming power of carbon dioxide over the first 20 years after it reaches the atmosphere. The World Bank estimates that up to 40 percent of global methane emissions arise from the oil and gas industry and the IEA estimates that 40% of oil and gas emissions can be reduced at no net cost using existing technologies. With an increase in methane regulation and rise of growing adoption of voluntary methane reporting programs such as UNEP's Oil and Gas Methane Partnership 2.0 (OGMP 2.0), some oil and gas operators find navigating their way through measurements planning and execution, reporting, and abatement challenging. With the proper planning and technology selection, companies can have higher confidence in achieving their methane-related goals.

Josef conducts fracture stimulation studies, on-site fracture engineering, Fracpro training courses, welltest analysis, reservoir simulation studies and software development. Before he joined Pinnacle Technologies Delft in 1996, Josef worked at RES, where he was the Lead Software Engineer for development of Fracpro. Prior to that, Josef worked for Hunter Geophysics, working on tiltmeter mapping applications. Josef has over 30 years of industry experience and received his Bachelor's and Master's degrees from MIT in Electrical Engineering and Computer Science. Josef is active in the Society of Petroleum Engineering, co-chairing the European Stimulation Workshop for the last 10 years and serving on the committee of the International Hydraulic Fracturing Technical Conference since its inception

Abstract:
The creation of thermal fractures when cold water is injected into the subsurface is a well known phenomenon in the oilfield, where it often occurs during injection of seawater for pressure support in oil reservoirs. In this presentation, some background on thermal fracturing from the oilfield will be given, and then some recent work on thermal fracturing of geothermal injection wells in the Netherlands will be discussed. Thermal fracturing has potential benefits and risks in a the context of a geothermal doublet. These will be discussed in the presentation, as well as examples of modeling the behavior and propagation of thermal fractures in a number of different types of models.

Milad Naderloo is a researcher in the field of Geomechanics and Applied Geophysics, currently embarking on a postdoctoral journey at TU Delft. With a foundation in rock mechanics from the University of Tehran and a Ph.D. focused on geomechanics and petrophysics from TU Delft, Milad has honed his expertise in induced seismicity, fault mechanics, passive acoustics, and rock deformation experiments. His primary research focuses on understanding the deformation of reservoirs and the reactivation of faults associated with energy storage projects, such as underground hydrogen and CO2 storage, as well as geothermal energy. Milad's current postdoctoral research delves into the interactions between hydrogen and rock formations, exploring its implications on reservoir geomechanics, a critical aspect of sustainable energy solutions.

Abstract:
Underground porous reservoirs present a viable option for storing green energy, utilizing existing infrastructures for gases like hydrogen. The dynamics of energy-rich fluid injections cause cyclical stress changes in the reservoir, necessitating detailed geomechanical deformation analyses under various storage conditions for safety and efficiency. Experimental and modeling approaches reveal the sandstones' response to cyclic loading, indicating that inelastic strain and acoustic emissions decrease over cycles, influenced by stress parameters. The study integrates deformation mechanisms into models that align well with experimental data, aiding in understanding reservoir behavior under fluid injections. Furthermore, examining fluid injection's role in seismicity through fault reactivation experiments in sandstone demonstrates that injection rates and patterns significantly impact fault slip behavior and seismic activity. High injection rates increase slip velocity and microseismic events, while cyclic injection patterns exacerbate these effects. These insights highlight the importance of considering injection strategies, including rate and pattern, to mitigate seismicity risks in porous reservoirs, emphasizing the need for comprehensive strategies in green energy storage in underground formations.

Myrna is a Geophysics Innovation Team Lead for Fugro with experience in the creation of seismic processing products in academia and industry. Since finalizing her PhD from TU Delft (on Marchenko imaging, supervised by Prof. Kees Wapenaar), she worked for Fugro as a Technologist, Product Owner and recently as a Team Lead. She and her team are responsible for the development of 7 land and marine geophysical and geotechnical innovations and built up a portfolio of 16 patents in less than 2 years. She believes in interdisciplinary and client-focused innovation through the connection of people, their problems, and novel technologies.

Abstract:
Rapid urbanization driven by population growth is increasing global construction activity, putting pressure on resources and infrastructure and raising sustainability challenges. Addressing these demands requires innovative planning, green technologies, and robust policies. Concrete and steel, essential for construction, are major greenhouse gas contributors. Concrete production accounts for 5-8% of global emissions and steel for 7-11%. To mitigate climate impact, efficient design and advanced structural analysis of buildings and infrastructure can minimize material use without compromising stability. Accurate soil condition assessments can reduce material use and emissions significantly. Traditional ground investigation methods, usually 1D or 2D, are resource-intensive and limited in scope. In contrast, a 3D geophysical method, akin to medical imaging, could provide comprehensive subsurface data, leading to optimized designs, reduced emissions, and accelerated construction. We demonstrate that the use of passive seismic screening is an important step towards accelerated site characterization by enabling the reduction of intrusive investigations and lighter, more sustainable engineering due to optimally designed foundations and infrastructure

Ashkan Jahanbani is associate professor of reservoir engineering at NTNU (Department of Geoscience and Petroleum), leader of the Gemini center CEORS (CO2 Enhanced Oil Recovery and Storage) and deputy leader of the BRU21 program area- reservoir management and production optimization. He is the recipient of 2024-2025 Fulbright Visiting Scholar Grant for conducting research on “Reuse Of the SubSurface (ROSS)” at the University of Southern California. In 2022, Ashkan was selected as one of NTNU's young talents in Outstanding Academic Fellows Programme 4.0 (2022-2026) with a research focus on CO2 storage challenges. With a background in reservoir engineering (BSc & MSc from PUT/Iran, MEng from UofC/Canada and PhD from NTNU/Norway), Ashkan is specialized in reservoir simulation, enhanced oil recovery, geological CO2 storage, well test analysis, PVT, fluid flow in porous media and proxy modeling.

Abstract:
Machine learning (ML) is being applied in reservoir simulation with significant potential for transforming the traditional practices in decision-making and field development strategies. By leveraging data-driven techniques and perceiving the relationship among data, ML can develop accurate and fast tools to model complex and uncertain physics. This presentation discusses some recent studies of developing ML-based proxy models for fast simulation and optimization of geological CO2 storage, highlighting the benefits of this approach in capturing nonlinearity. Application examples include studies of Smeaheia CO2 storage (saline aquifer hosted by the Horda Platform, east of the Troll Field in the North Sea), Svelvik CO2 Field Lab (a small-scale field laboratory located about 50 km southwest of Oslo), and water alternating CO2 gas injection in two selected reservoir models.

Henk van Oeveren is senior project leader and reservoir engineer at Ennatuurlijk Aardwarmte. He has worked on gas, oil, gas storage, and geothermal project development and operations.

Andrea Vondrak is senior geologist at Ennatuurlijk Aardwarmte. She has worked on oil & gas projects as well as geothermal projects, with highlights of joining projects drilling an offshore well and in 2023 the geothermal doublets on the TU Delft campus.

Abstract:
In 2023 Ennatuurlijk Aardwarmte took over the geothermal assets from ECW. The Middenmeer asset started with the first 2 doublets (4 wells) drilled in 2013/2014 and has been in production since. Operations expanded near field with additional wells were Middenmeer, a high-temperature aquifer thermal storeage, and greenfield in Andijk. This presentation will give an insight in the last 10 years of production, challenges and growth, it will also give a look forward on how Ennatuurlijk Aardwarmte is planning to grow.