Panja et al. [1,2] performed parametric analyses to identify desirable reservoir characteristics. The authors discussed the implementation of the geothermal battery energy storage "GBES" concept in sedimentary basins to provide a cost-effective large-scale
upper percolation threshold and porosity–permeability relationship in sandstone reservoirs using digital image analysis ... A review of developments in carbon dioxide storage. Appl. Energy 208 ...
Million cubic meters from abandoned mines worldwide could be used as subsurface reservoirs for large scale energy storage systems, such as adiabatic compressed air energy storage (A-CAES). In this paper, analytical and three-dimensional CFD numerical models have been conducted to analyze the thermodynamic performance …
Based on the analysis of the background, types and status, and the study of the key theoretical and technical problems of deep underground energy storage in China, we make the following conclusions: (1) The use of deep underground spaces for energy storage is an important direction for future energy reserve maintenance.
Abstract. Both carbon dioxide and hydrogen can be stored in coal seams as two enabling components of energy transition from fossil-based systems to renewable …
The analysis has been performed for the systems with φ ∈ (0.37, 0.99) which covers five orders of magnitude a span for permeability k ∈ (0.78, 2.1 × 10 5) and tortuosity T ∈ (1.03, 2.74). It is shown that the CNNs can be used to predict the porosity, permeability, and tortuosity with good accuracy.
The technology is especially suitable for low-permeability reservoirs that suffer from lack of energy, and strong heterogeneity. Fracturing-flooding technology has shown significant results and broad development prospects in some oilfields in China. This paper analyzes the development status of fracturing-flooding technology from its ...
The proposed operation of building a man-made low-permeability barrier to form large-scale energy storage, such as the storage available in Huntorf plant, was validated using TOUGH2/Gel. The asymmetrical porosity and permeability distributions were calculated, and the lowest value reached the acceptable standard.
The Geothermal Battery Energy Storage ("GB") concept relies on using the earth as a storage container for heat. The concept of the subsurface storing heat is not new. What is new is using a small volume of high porosity and high permeability water saturated rock, away from complex layering and fractures and faulting.
In addition, this paper analyzes the energy storage that can be accessed by photovoltaic distribution networks with different permeability and finds that when …
We have shown that reservoirs with lower permeability (35 mD) can work almost as effectively as storage with higher permeability (112 mD) if injection and production demands are not too high and there is sufficient pore space for fluid storage.
a, Schematic and X-ray tomographic image showing the tightly wound layers of anode, separator and cathode of a cylindrical cell and a zoomed-in schematic of the layer structure.b, FIB-SEM ...
A systematic preliminary data analysis was conducted to probe thermal energy storage properties of the subsurface. A full-scale field test was performed to …
Shale matrix permeability is vital to the evaluation of shale petrophysical property. In this study, an analytical model that considers pore size distribution, tortuosity, adsorption, and slippage effects is developed, to calculate the permeability of shale samples. Specifically, field emission scanning electron microscope (FE-SEM), the …
On the basis of the complexity of the pore structure characteristics of a coal reservoir, coal samples with different ranks were selected to study the difference in pore structures and permeability using nuclear magnetic resonance (NMR), scanning electron microscopy (SEM), mercury intrusion porosimetry (MIP), and permeability measurement. Porosity …
1. Introduction A salt cavern is a large underground open space created by controlled water leaching in a salt formation, whether salt dome or bedded salt [1].Due to the low permeability [2, 3] and damage self-healing capability [4, 5] of the host rock, salt caverns are widely used for energy storage [6], including Strategic Petroleum Reserve …
The mining of underground coal seam often induces the dynamic disasters of coal seam, such as rock burst and gas outburst. The determination of evolution characteristics of mechanical parameters and seepage parameters of coal mass after excavation is the basis for analyzing the formation mechanism of dynamic disasters. In …
The goal of the study was to use machine learning techniques for pore structure analysis and estimation of permeability in ... An open-source platform for biological-image analysis. Nat . Methods ...
As the demands of tight-oil Enhanced Oil Recovery (EOR) and the controlling of anthropogenic carbon emission have become global challenges, Carbon Capture Utilization and Sequestration (CCUS) has …
Abstract. In the emergence of new technologies to harness renewable energy, industrial-scale storage of heated water in a geothermal system is a promising …
Understanding the influence of permeability anisotropy and layering on temperature and pressure profiles and on thermal energy storage in sedimentary rocks …
An image-based lattice Boltzmann method was developed to mimic the fluid flow within mushy zone.The continuously-evolving microstructures during both melting and solidification were considered. • The calculated velocity and …
Compressed air energy storage in aquifers (CAESA) has been considered a potential large-scale energy storage technology. However, due to the lack of actual field tests, research …
Through incorporating the fictitious stress concept into the conventional effective stress principle, we have obtained the unconventional one. By substituting Eq. (13) into Eq. (3), a new generic UES-dependent coal permeability model is obtained: (14) k k 0 = exp (− 3 c f (Δ σ c − α Δ p + Δ σ f i c)) When interpreting permeability data measured in …
An analysis of five oil reservoirs in the Shengli and Jiangsu oilfields in China demonstrated that incorporating lateral and bottom aquifers may greatly increase CO 2 storage capacity. Roopa et al. [ 35 ] established a novel approach combining dynamic and static analyses and evaluated mature reservoirs operated by BP Trinidad and Tobago …
We conduct steady-state relative permeability experiments at 2.13 MPa and 298 K using identical capillary numbers of N c = 2.92 × 10 − 7 for all three systems. The saturation and in-situ contact angles are determined …
<p>After the production of some horizontal wells in ultra-low permeability reservoirs for a period of time, the production capacity from those wells start to decrease. A research and test on energy storage fracturing mechanism of horizontal wells in ultra-low permeability reservoir have been carried out. According to the failure mechanism of the rock, the …
Gas permeability in coal characterizes the migration capacity of gas in coal, and it is an important parameter influencing the gas flow in a coal seam. Energy dissipation and energy release are important causes of rock mass failure.
where ε r is the relative permittivity of the material, and ε 0 is the permittivity of a vacuum, 8.854 × 10 −12 F per meter. The permittivity was sometimes called the dielectric constant in the past. Values of the relative permittivity of several materials are shown in Table 7.1.
Storage of green gases (eg. hydrogen) in salt caverns offers a promising large-scale energy storage option for combating intermittent supply of renewable …
So, through the result analysis of two kinds of samples, it can be considered that porosity is the ultimate cause of permeability change. In conclusion, the effects of effective gravity on gas permeability and porosity of hydrate sandy sediments and hydrate clay-sand mixture sediments were analyzed in this study.
Geological storage of carbon dioxide (CO2) is an important way to mitigate global warming, making CO2 enhanced oil recovery (CO2-EOR) and storage technology with sequestration and economic benefits a hot research topic and making positive progress in medium- to high-permeability reservoirs. However, the research on extra-low …
Gas permeability in coal characterizes the migration capacity of gas in coal, and it is an important parameter influencing the gas flow in a coal seam. Energy dissipation and energy release are important causes of rock mass failure. By utilizing a THM-2-type thermo-fluid–solid coupling test system for gas-bearing coal developed at …
The compressed air energy storage (CAES) system is considered to be one of the most promising large-scale electrical energy storage technologies. It is important for load leveling, especially for the various ''intermittent'' renewable energy types such as wind and solar power that are subject to weather conditions (Pepper, 2008).
The permeability rebound and recovery are the key factors affecting the production efficiency of CBM and the storage capacity of CO 2 during the CO 2-ECBM process this study, fully coupled mathematical models of multi-physical fields with thermal-hydraulic ...
Wendt, D., Huang, H., Zhu, G., et al. Geologic thermal energy storage of solar heat to provide a source of dispatchable renewable power and seasonal energy storage capacity. Paper Presented at the Geothermal Resources Council (GRC) Annual Meeting and Expo, Palm Springs, California, 15-18 September 2019.
DOI: 10.1016/j.energy.2022.125395 Corpus ID: 252343820 Numerical analysis of permeability rebound and recovery evolution with THM multi-physical field models during CBM extraction in crushed soft coal with low permeability and its indicative significance to CO2 geological sequestration ...
<p>In the emergence of new technologies to harness renewable energy, industrial-scale storage of heated water in a geothermal system is a promising technique. A porous, permeable medium, bounded by a poorly thermally conductive/convective overburden and underburden, can be used for transient subsurface thermal storage. The …
Underground storage of natural gas is widely used to meet both base and peak load demands of gas grids. Salt caverns for natural gas storage can also be suitable for underground compressed hydrogen gas energy storage. In this paper, large quantities underground gas storage methods and design aspects of salt caverns are investigated.
Introduction The variability of wind and solar power output in high-permeability wind and solar power distribution networks presents significant challenges to power systems secure and stable operation [1, 2].Energy storage technology can mitigate energy fluctuations [3, 4], attain stable electricity output, enhance energy management, …