Results 61 to 70 of about 435,541 (193)

Reservoir characterization for the completion of the geothermal district heating system in Grado (NE Italy)

open access: yes, 2013
As part of the Grado geothermal Project - Phase 2, an integrated gravity and seismic prospecting was recently conducted in downtown Grado Island (North Eastern Italy) and in the surrounding lagoon. The aim of this study was to characterize the carbonatic
DELLA VEDOVA, BRUNO   +4 more
core  

Coupled Assessment of Injection Pressure–Driven Risk, Trapping Evolution, and Cost Uncertainty in Geological CO2 Storage

open access: yesGreenhouse Gases: Science and Technology, EarlyView.
ABSTRACT Scaling geological CO2 storage requires simultaneously controlling plume migration, pressure buildup, geomechanical integrity, and monitoring cost under deep subsurface uncertainty. Yet early‐stage assessments often treat these elements in isolation, obscuring the decision‐critical couplings between pressure‐defined regulatory exposure and ...
Mrityunjay Singh, Heba Atef, Ingo Sass
wiley   +1 more source

Geothermal reservoir characterization: a thermofacies concept

open access: yesTerra Nova, 2012
Terra Nova, 24, 142–147, 2012AbstractThe thermofacies concept is based on new measurements of about 11 000 plug samples drilled from sedimentary rocks and investigated at TU Darmstadt from 2007 to 2011. Some hundred representative thin sections were analysed for facies interpretation.
Sass, I., Götz, A. E.
openaire   +2 more sources

Pulse testing in Geothermal Energy: Demonstration of a new monitoring tool. [PDF]

open access: yes, 2022
Harmonic pulse testing has been employed to identify the thermal front in a geothermal system and in a heat storage system. For the geothermal system we could identify the hydraulic reservoir properties around the well.
Koenen M.   +10 more
core  

A Reassessment of Petrochemistry of ~1.2 Ga Tonalitic Rocks of the Northern Tugela Terrane, Natal Metamorphic Belt, South Africa: Further Constraints on the Evolution of This Belt

open access: yesGeological Journal, EarlyView.
Our petrochemical studies on ~1.2 Ga granitoids of the Natal Metamorphic Belt, South Africa, do not suggest any property similar to Phanerozoic‐style subduction‐related granitoids. Plot of Kotongweni Tonalite in Y versus Sr diagram (after Moyen 2011), note that most samples have Sr/Y < 50.
Palesa Leuta   +2 more
wiley   +1 more source

Mercury cycling during the last glacial period in Arctic Lake El'gygytgyn, NE Russia

open access: yesJournal of Quaternary Science, EarlyView.
ABSTRACT Tectonic processes play a key role in the global mercury (Hg) cycle on geological timescales, by mobilising Hg from deep Earth reservoirs to the surface. These natural fluxes also introduce a dynamic component to the terrestrial Hg cycle that can interact with other environmental signals and influence Hg delivery to sedimentary records.
Alice R. Paine   +7 more
wiley   +1 more source

The Combined Effects of Variable Viscosity and Thermal Conductivity of An Unsteady Casson Fluid Flow Along a Vertical Porous Channel With Convective Cooling Walls, Using the Bivariate Spectral Local Linearization Method

open access: yesMathematical Methods in the Applied Sciences, EarlyView.
ABSTRACT This study examines the combined impact of different thermal conductivity and viscosity on unsteady non‐Newtonian Casson fluid flow of incompressible, electrical conductivity in a porous vertical channel with convective cooling walls, uniform magnetic field, and constant pressure gradient.
A. S. Adeyemo   +2 more
wiley   +1 more source

Impact of well placement and flow rate on production efficiency and stress field in the fractured geothermal reservoirs

open access: yesDeep Underground Science and Engineering
Geothermal energy has gained wide attention as a renewable alternative for mitigating greenhouse gas emissions. The advancements in enhanced geothermal system technology have enabled the exploitation of previously inaccessible geothermal resources ...
Xinghui Wu   +5 more
doaj   +1 more source

Coupled Geothermal Reservoir and Process Simulation of a Binary Plant for Front End Engineering Design

open access: yes, 2020
New Zealand generates around 18% of its total electrical capacity using geothermal sources and could benefit significantly from simulation for optimization (Ministry of Business, Innovation & Employment, 2017).
Archer, Rosalind   +3 more
core  

Geothermal structural geology in New Zealand: Innovative characterisation and micro-analytical techniques

open access: yes, 2017
Many of New Zealand's geothermal reservoirs are hosted in rocks with low intrinsic permeability. As such, successful development of these resources relies on understanding the role subsurface structures, such as fractures and faults, play in reservoir ...
Massiot, Cécile, McNamara, David D.
core   +1 more source

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