Results 121 to 130 of about 5,561,520 (285)

Multioffset VSP for the integrated geophysical characterization of the Grado (NE Italy) carbonatic reservoir

open access: yes, 2013
We present the results of a multi-offset vertical seismic profile (VSP) acquired in the Grado-1 (North Eastern Italy) geothermal exploration well in the framework of an integrated VSP, seismic and gravimetric survey.
DELLA VEDOVA, BRUNO   +5 more
core  

The legacy of Ngatoroirangi: Maori customary use of geothermal resources [PDF]

open access: yes, 2000
Geothermal activity has always been regarded as a significant traditional resource among Maori communities of the Bay of Plenty, Rotorua and Taupo districts.
Stokes, Evelyn
core  

Fiscal Year 1991

open access: yes, 1991
This is an internal DOE Geothermal Program planning and control document.
United States. Department of Energy. Geothermal Division.
core   +1 more source

Combination of CO 2 ${\text{CO}}_{2}$ storage and geothermal energy production in porous and fractured superhot geothermal systems

open access: yesDeep Underground Science and Engineering, EarlyView.
The graphical abstract depicts the workflow for porous‐ and fractured‐media simulations, where stochastically generated discrete natural fractures are required for the fracture‐media simulation. Abstract CO 2 ${\text{CO}}_{2}$ leakage is one of the main risks and barriers to geologic carbon storage. However, under the high‐temperature and high‐pressure
Christoph Scherounigg   +3 more
wiley   +1 more source

Risk of surface movements and reservoir deformation for high-temperature aquifer thermal energy storage (HT-ATES)

open access: yesGeothermal Energy
High-temperature aquifer thermal energy storage (HT-ATES) systems are designed for seasonal storage of large amounts of thermal energy to meet the demand of industrial processes or district heating systems at high temperatures (> 100 °C).
Kai Stricker   +3 more
doaj   +1 more source

Numerical Study of the Thermo-Hydro-Mechanical Coupling Impacts of Shallow Geothermal Borehole Groups in Fractured Rock Mass on Geological Environment

open access: yesEnergies
Fractured rock mass is extensively distributed in Karst topography regions, and its geological environment is different from that of the quaternary strata.
Yujin Ran   +6 more
doaj   +1 more source

Modeling proppant transport and settling in a 3D propagating fracture

open access: yesDeep Underground Science and Engineering, EarlyView.
A versatile multiphysics tool is presented for simulating the complex processes involved in hydraulic fracturing treatments. The model couples fracture opening and propagation, variable‐density slurry flow, and proppant particle transport within the multiphysics object‐oriented simulation environment framework, based on two‐phase mixture equations and ...
Robert Egert   +2 more
wiley   +1 more source

Large-scale ammonia-butane high-temperature heat pump demonstrator: Development of fundamental numerical models and experimental validation

open access: yesEnergy Reports
A cutting-edge thermal pilot plant at the Fraunhofer IEG facility of Bochum proves the technical viability of high-temperature heat pumps that employ seasonal mine thermal energy storage as a heat source.
Arianna Passamonti   +2 more
doaj   +1 more source

World's fastest 10 000‐m breakthrough: The XY‐22 well redefines deep‐earth access in the Tarim Basin

open access: yesDeep Underground Science and Engineering, EarlyView.
The Tarim Basin in northwestern China hosts one of the world's deepest petroleum systems, exemplified by the XY‐22 ultra‐deep well (bottom depth: 11 116 m; ~220°C, ~145 MPa). This study integrates tectonic mapping, geological cross‐sections, ultraviolet fluorescence microscopy, and optical photothermal infrared (OPTIR) spectroscopy to characterize ...
Qingwen Tan   +4 more
wiley   +1 more source

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