Results 61 to 70 of about 83,956 (298)
An assessment of stress and production rate of sucker rod heat pipes in oil well pumping system
Deep Underground Science and Engineering, EarlyView.The sucker rod pumping system is the preferred oil extraction technique. The concept about equipping the hollow vacuum space in solid sucker rods with heat pipe has been scrutinized in terms of stress and oil production evaluation. Abstract The implementation of the heat pipe concept in sucker rods for oil pumping systems negates the requirement for an
R. S. Anand +5 more
wiley +1 more source
Carsologica Sinica, 2023 China is steadfast in promoting green and low-carbon energy transformation. Playing a pivotal role in the power industry, hydropower is at the forefront of energy transformation.
Jianwen CAO +6 more
doaj +1 more source
Geothermal Energy: Tapping the Energy in the Earth's Core [PDF]
, 2006 Key facts: - Geothermal energy comes from the heat in the Earth's core. This heat creates underground reservoirs of steam and hot water, which can be tapped to generate electricity or to heat and cool buildings directly.
core
Overcoming challenges in the classification of deep geothermal potential [PDF]
, 2015 The geothermal community lacks a universal definition of deep geothermal systems. A minimum depth of 400 m is often assumed, with a further sub-classification into middle-deep geothermal systems for reservoirs found between 400 and 1000 m.
Breede, K. +2 more
core +1 more source
Deep Underground Science and Engineering, EarlyView.The spiral conical perforations generated during methane in situ explosion fracturing operations lead to tensile fracture propagation in shale reservoirs being governed by the combined effects of impact pressure, bedding, and aperture under explosive loading. Using multiple regression analysis and digital image correlation technology, the mechanisms of
Yabo Chai +7 more
wiley +1 more source
Meitan kexue jishuThe Shendong Mining Area is endowed with abundant coal resources yet faces severe water scarcity. The successful application of underground reservoir technology has preserved a significant amount of mine water resources in the region.
Haiqin ZHANG +7 more
doaj +1 more source
Thermal effects on geologic carbon storage [PDF]
, 2017 The final publication is available at Springer via http://dx.doi.org/10.1016/j.earscirev.2016.12.011One of the most promising ways to significantly reduce greenhouse gases emissions, while carbon-free energy sources are developed, is Carbon Capture and ...
Rutqvist, Jonny +1 more
core +2 more sources
Reflection Phenomena in Underground Pumped Storage Reservoirs [PDF]
Water, 2018 Energy storage through hydropower leads to free surface water waves in the connected reservoirs. The reason for this is the movement of water between reservoirs at different elevations, which is necessary for electrical energy storage. Currently, the expansion of renewable energies requires the development of fast and flexible energy storage systems ...
Pummer, Elena Marianne +1 more
openaire +2 more sources
Deep Underground Science and Engineering, EarlyView.Our study reveals that caving‐enhanced geothermal systems (C‐EGS) with adequately fractured reservoirs achieve optimal heat extraction by minimizing preferential flow paths, while conventional fracturing (F‐EGS) and pipe‐based (P‐EGS) systems suffer accelerated thermal drawdown.
Fangchao Kang +4 more
wiley +1 more source
Geomatics, Natural Hazards & Risk, 2023 A numerical hydro-mechanical damage model is proposed in this paper to investigate the stability and failure characteristics of artificial dam in coal mine underground water reservoir.
Junpeng Ma +6 more
doaj +1 more source