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The article provides insights into the importance of 3D seismic surveys for effective geothermal exploration in the Geneva area of Switzerland. By drilling two exploration wells and acquiring 2D seismic lines, it became evident that obtaining full 3D seismic coverage was necessary to map faults and karst features more accurately, de-risking future drilling sites and improving well planning.

The article discusses the unexpected importance of resistivity data in geothermal exploration, specifically in the Amstelland-01 well in the Netherlands. Topics include the challenges faced in mapping subsurface geothermal potential, the role of resistivity logs in assessing reservoir performance, and how the analysis of core data and resistivity logs helped explain lower-than-expected production rates.

The article highlights the challenges in the geothermal sector due to non-standardized terms and definitions, and the efforts of the IADC Geothermal Committee to standardize well design classifications to improve clarity and efficiency. It also discusses the benefits of the classification system for regulators and investors, the difficulties faced in categorizing well design and construction, and the committee's approach to using existing standards for operational temperatures.

The article discusses geothermal projects in North American sedimentary basins. Topics discussed include use of technology developments to optimize power production and further decrease levelized cost of electricity (LCOE); opportunity to produce geothermal energy from sedimentary basins through drilling geothermal wells; and economic liability of end-of-life wells.

The article offers information on a paper published in the Open Journal of Geology by Maryam Khodayar and Sveinbjörn Björnsson, reviewing and illustrating various shallow and deep conventional and unconventional geothermal systems. Topics include the diversity of geothermal concepts, the importance of drilling innovations for geothermal development, and the confusion that can arise from terminologies like "ultradeep" and "conventional" vs. "unconventional" geothermal systems.

The article offers information on the United Downs geothermal project in Cornwall, UK, which secured government support but has a lower-than-expected estimated energy output of 2 MWe. Topics include the project's drilling strategy targeting a fault zone in the granitic basement, the importance of preserving permeability in naturally fractured zones during drilling, and potential issues with the type of drill bit used, which may have led to reduced fluid flow capacity.

The article focuses on geothermal pumped well projects' economics and pricing in Nevada. It highlights how the price of geothermal power in Nevada has fluctuated between 5-9 cents per kWh, contributing to the growth of the industry. The piece also mentions subsidies in the form of tax credits in the US and feed-in tariffs in Germany that have supported the geothermal industry.

The article offers information on geothermal pumped-well power projects and its growth within the geothermal industry at a global scale.

The article offers information on a multi-well exploration campaign in the Netherlands aimed at characterizing the subsurface for geothermal energy production. Topics discussed include the initiation of the exploration campaign near the Ajax football stadium in Amsterdam, Netherlands; the geothermal exploration well as part of the SCAN project operated by EBN; and the use of seismic data to identify drilling locations and understand subsurface characteristics for future geothermal development.

The article offers information on the discovery of extensive karst and erosional features in the Geneva Basin, western Switzerland, using 3D seismic data.

The article offers information on the challenges faced by the open-loop deep geothermal energy production in the United Kingdom. It mentions that how the subsurface forms an integrated part of the energy transition. It discusses the difference between shallow closed-loop and deep open-loop geothermal systems.

The article discusses a geothermal project in the village of Monster, in the Netherlands, where a new geothermal well was completed targeting the Lower Cretaceous Delft Sandstone for brine production. The operators retrieved a core from the Rodenrijs Claystone Member, which overlies the Delft Sandstone and acts as the sealing unit. The primary reason for coring the overburden of the geothermal reservoir was to better understand the geomechanical properties of the seal.

The article discusses the challenges for deep closed-loop geothermal systems as of 2023. Topics covered include the latter's much slower energy transfer than open-loop systems and leakage of fluids into the wellbore and formation which have to be sealed. Also noted are the nonpractical solutions of creating hydraulic fractures around the well, and the retrofitting of oil and gas wells with heat exchangers.

The article discusses the need for investments in production chemistry materials in the geothermal energy industry to cope with corrosive fluids and high fluid flow as of 2023. Topics covered include the challenges of higher maintenance costs in geothermal well production compared with oil and gas, and of radioactive lead deposition in the casing and heat exchanger. Also noted is the common challenge of scaling or the precipitation of minerals from the produced brines.

The article features the possible drilling for geothermal to a depth of 7 kilometers in the south of Poland as of 2023. Topics discussed include the geological setting in which the well is drilled, and the high reservoir pressures in the Podhale Basin where the Paleogene overburden reaches maximum thickness. Also noted is the provision of heat to the Szaflary village and neighboring places by the newly drilled well.

The article discusses the profit potential in geothermal energy production as of 2023. Topics covered include the process in locating the highest temperatures in volcanically active areas, and magnetotelluric surveys' detection of conductive clay layers on top of the geothermal reservoir that are then used to map the geothermal field. Also noted is the use of small diameter boreholes to map the temperature anomalies.

The article discusses a study by Robert Vörö et al published in the "Netherlands Journal of Geosciences," which attempts to know whether seismic hazard assessments performed during the lifetime of the geothermal projects correctly predicted earthquakes. Topics covered include the mechanism identified by the study as the most likely candidate to cause induced seismic events, and the role that injected water from geothermal projects play in induced seismic events.

The article focuses on a conceptual geological model of the target reservoir on the flagship geothermal exploration drilled in Hamburg, Germany which shows that the project was a failure since the rock's flow properties were of insufficient quality to warrant drilling another well.