Effects of the mechanical response of low-permeability sandstone reservoirs on CO2 geological storage based on laboratory experiments and numerical simulations

2021 ◽  
pp. 149066
Author(s):  
Fugang Wang ◽  
Shifei Ping ◽  
Yilong Yuan ◽  
Zhaojun Sun ◽  
Hailong Tian ◽  
...  
Keyword(s):  
Numerical Simulations ◽  
Laboratory Experiments ◽  
Mechanical Response ◽  
Low Permeability ◽  
Geological Storage ◽  
Co2 Geological Storage ◽  
Sandstone Reservoirs

scholarly journals Study on the Influential Factors of CO2 Storage in Low Permeability Reservoir

Energies ◽  
2022 ◽  
Vol 15 (1) ◽  
pp. 344
Author(s):  
Ping Yue ◽  
Rujie Zhang ◽  
James J. Sheng ◽  
Gaoming Yu ◽  
Feng Liu
Keyword(s):  
Carbon Dioxide ◽  
Co2 Storage ◽  
Ordos Basin ◽  
Influential Factors ◽  
Low Permeability ◽  
Geological Storage ◽  
Co2 Geological Storage ◽  
Low Permeability Reservoir ◽  
Low Permeability Reservoirs ◽  
Breakthrough Pressure

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 been recognized as an effective solution to resolve both needs. However, the influential factors of carbon dioxide (CO2) geological storage in low permeability reservoirs have not been fully studied. Based on core samples from the Huang-3 area of the Ordos Basin, the feasibility and influential factors of geological CO2 sequestration in the Huang-3 area are analyzed through caprock breakthrough tests and a CO2 storage factor experiment. The results indicate that capillary trapping is the key mechanism of the sealing effect by the caprock. With the increase of caprock permeability, the breakthrough pressure and pressure difference decreased rapidly. A good exponential relationship between caprock breakthrough pressure and permeability can be summarized. The minimum breakthrough pressure of CO2 in the caprock of the Huang-3 area is 22 MPa, and the breakthrough pressure gradient is greater than 100 MPa/m. Huang-3 area is suitable for the geological sequestration of CO2, and the risk of CO2 breakthrough in the caprock is small. At the same storage percentage, the recovery factor of crude oil in larger permeability core is higher, and the storage percentage decreases with the increase of recovery factor. It turned out that a low permeability reservoir is easier to store CO2, and the storage percentage of carbon dioxide in the miscible phase is greater than that in the immiscible phase. This study can provide empirical reference for caprock selection and safety evaluation of CO2 geological storage in low permeability reservoirs within Ordos Basin.

Integration of Carbon Geological Storage and Geothermal Energy Development in Low-Permeability Reservoirs

2013 ◽  
Vol 448-453 ◽  
pp. 4350-4357
Author(s):  
Shi Yan ◽  
Fu Gang Wang ◽  
Yan Lin Yang ◽  
Gua Hong Feng
Keyword(s):  
Numerical Simulations ◽  
Geothermal Energy ◽  
Heat Extraction ◽  
Working Fluid ◽  
Low Permeability ◽  
Geothermal Systems ◽  
Geological Storage ◽  
Political Issues ◽  
Low Permeability Reservoirs ◽  
Transfer Properties

Carbon dioxide (CO2) has recently been considered as an alternative geothermal working fluid because of some favourable fluid dynamics and heat transfer properties compared to water. The concept, however, was initially proposed in the context of engineered geothermal systems (EGS). EGS has encountered considerable unfavourable conditions and socio-political issues. Consequently, use of the CO2sequestration site to recovery geothermal energy may be practical, so called CO2-plume geothermal (CPG) system. We have performed numerical simulations to study non-isothermal multiphase flow processes of CO2displacing water and behaviour of a CPG system in a low-permeability reservoir. A number of numerical simulations under various geological and pressure/temperature conditions are performed. The objective of this research is to (1) investigate the heat extraction efficiency using supercritical CO2in comparison with water, (2) evaluate favourable and unfavourable conditions for heat extraction.

scholarly journals Jetting behavior in drop-on-demand printing: Laboratory experiments and numerical simulations

2020 ◽  
Vol 5 (4) ◽  
Author(s):  
E. Antonopoulou ◽  
O. G. Harlen ◽  
M. A. Walkley ◽  
N. Kapur
Keyword(s):  
Numerical Simulations ◽  
Laboratory Experiments ◽  
On Demand ◽  
Drop On Demand

scholarly journals A numerical investigation on impulse-induced nonlinear longitudinal waves in pantographic beams

2021 ◽  
pp. 108128652110108
Author(s):  
Emilio Turco ◽  
Emilio Barchiesi ◽  
Francesco dell’Isola
Keyword(s):  
Numerical Simulations ◽  
Mechanical Response ◽  
Integration Scheme ◽  
Present Contribution ◽  
Longitudinal Waves ◽  
Deformation Regime ◽  
Impulsive Loads ◽  
Unit Cells ◽  
Statics And Dynamics ◽  
Equations Of Motions

This contribution presents the results of a campaign of numerical simulations aimed at better understanding the propagation of longitudinal waves in pantographic beams within the large-deformation regime. Initially, we recall the key features of a Lagrangian discrete spring model, which was introduced in previous works and that was tested extensively as capable of accurately forecasting the mechanical response of structures based on the pantographic motif, both in statics and dynamics. Successively, a stepwise integration scheme used to solve equations of motions is briefly discussed. The key content of the present contribution concerns the thorough presentation of some selected numerical simulations, which focus in particular on the propagation of stretch profiles induced by impulsive loads. The study takes into account different tests, by varying the number of unit cells, i.e., the total length of the system, spring stiffnesses, the shape of the impulse, as well as its properties such as duration and peak amplitude, and boundary conditions. Some conjectures about the form of traveling waves are formulated, to be confirmed by both further numerical simulations and analytical investigations.

scholarly journals Evaluation of Barriers to National CO2 Geological Storage Assessments

2017 ◽  
Vol 114 ◽  
pp. 4750-4756 ◽  
Author(s):  
Ceri J. Vincent ◽  
M.S. Bentham ◽  
K.L. Kirk ◽  
M.C. Akhurst ◽  
J.M. Pearce
Keyword(s):  
Geological Storage ◽  
Co2 Geological Storage
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