Energy transition
This paper reviews the simultaneous supercritical CO2/brine aquifer injection and water-alternating-gas methods for geologic carbon sequestration and proposes a novel integration with saltwater-disposal wells.
The objective of this study is to numerically investigate system behavior when storing H2/natural gas (CH4) mixtures in aquifer-related underground gas storage, and the effect of gas composition and salinity on energy-recovery efficiency.
This paper provides an account of the design, implementation, and operational insights from an enhanced geothermal system proppant stimulation targeting a volcanic, dry rock setting with an approximately 330°C bottomhole temperature.
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This paper aims to investigate the use of an optimization workflow to maximize both hydrogen storage and the net present value to obtain an optimal reservoir development strategy. -
This paper describes how ramp-up operations and commercialization of an underground storage asset were combined, rapidly providing a wide range of commercial services to the Italian gas system while long-term UGS performance increased continuously.
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The authors introduce a novel framework combining dynamic mode decomposition, a data-driven model-reduction technique, with direct data assimilation to streamline the calibration of carbon-dioxide plume evolution models.
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Geothermal systems, which rely on extracting heat from deep within the Earth, face many of the same technical challenges that oil and gas operators have tackled for decades. Geothermal development can be advanced efficiently and economically by applying proven oil and gas technologies.
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This study highlights how the recovery and reuse of existing hydrocarbon infrastructure can contribute to the diffusion of district-heating projects that implement the principles of the circular economy.
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The companies have announced they will work together to integrate geothermal well engineering and project delivery globally.
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A recent report from Wood Mackenzie highlights the role of natural gas in supporting renewables and reducing emissions.
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Closed-loop geothermal systems have entered the new-energy arena to generate electricity using the underground as a heat exchanger.
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Equinor will reduce investments in renewables over the next 2 years by 50% to $5 billion and will increase its focus on oil and gas production, expecting more than 10% growth from 2024 to 2027.
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The companies said they plan to work together on developing geopressured geothermal systems for low-carbon energy storage and geothermal power generation.
