Conveners
MS16: 1.1
- Zhaoqin Huang (China University of Petroleum (East China))
- Yingfang Zhou (University of Aberdeen)
MS16: 4.1
- Yingfang Zhou (University of Aberdeen)
- Moran Wang (Tsinghua University)
MS16: 4.3
- Moran Wang (Tsinghua University)
- Yingfang Zhou (University of Aberdeen)
Liquid nitrogen (LN₂) cryogenic fracturing has emerged as a promising technique for waterless stimulation in coalbed methane (CBM) reservoirs, primarily by increasing the pore space through freeze-thaw induced effects, thus improving methane recovery from deep coal seams. However, the underlying mechanisms of in-situ gas and water-bearing coal reservoir modification, particularly the dynamic...
Fibrous bio-based insulation materials are highly porous media in which thermal transport arises from coupled contributions of the solid network, the interstitial gas phase, and moisture stored as bound water within the fibers. In such systems, heat transfer is governed both by the microstructural organization imposed during material processing and by the hygrometric state of the solid phase....
Injecting CO2 into coal reservoirs has the dual benefits of not only enhancing coalbed methane recovery but also achieving geological storage of CO2 to reduce greenhouse gas emissions. Deep coal reservoirs are usually saturated with water, and CO2 is usually in a supercritical state under high pressure and temperature at deep burial depths. Understanding the structural changes in deep coal...
In the context of climate emergency, bio-based building materials offer strong potential to reduce the carbon footprint of the construction industry while regulating temperature and humidity fluctuations. Their hygrothermal behavior results from coupled fluid–solid–thermal processes: moisture is transported in the pore space as a mixture of dry air and water vapor, and within the solid matrix...
An instability may arise when a hot viscous fluid enters a thin gap and cools through heat transfer to a colder surrounding environment. Fluids whose viscosity increases strongly upon cooling create a positive feedback in which warmer regions flow faster and cool more slowly, leading to the formation of thermo-viscous "fingers". Here we investigate this mechanism in the long time, small Biot...
Vesicular volcanic reservoirs, characterized by well-developed micro-fracture and vug combinations, exhibit favorable connectivity and high hydrocarbon enrichment. However, drilling in such formations frequently encounters downhole incidents such as lost circulation and pipe sticking, with high and severe loss rates, complex leakage mechanisms, and low success rates in primary plugging...
Rock-like materials are widely distributed on Earth and have long attracted attention in geotechnical engineering, particularly in the context of high slopes and deep underground projects. Under complex geological and environmental conditions, rocks often exhibit distinctive mechanical behaviors, such as brittle-ductile transition, inherent and induced anisotropy, and multi-field coupling...
Thermal loading in low-permeability clayey soils induces complex coupled thermo-hydro-mechanical responses that are critical for energy geotechnical applications. In particular, temperature-induced pore pressure generation and the evolution of the lateral earth pressure coefficient at rest (K₀) play a central role in the performance and stability of systems such as geothermal wells [1],...
Freeze-drying involves strongly coupled heat and mass transfer in evolving porous structures, where the interplay between rarefied gas flow, solid conduction, and phase-change kinetics governs the sublimation front dynamics and overall drying rate. In this work, we present a physics-based pore-network modeling framework for freeze-drying and validate it against controlled laboratory...
The decline of mature oil fields has intensified the development of enhanced oil recovery (EOR) methods capable of improving sweep efficiency under harsh reservoir conditions. Polymer flooding is widely applied to control the mobility ratio between injected water and oil; however, conventional polyacrylamide-based polymers often exhibit limited performance in high-temperature and high-salinity...
The study of argillaceous rocks is experiencing increased interest due to its potential as host rock for nuclear waste disposal facilities. Low permeability and self-sealing capabilities mitigate the risk of radioactive materials transport to the biosphere. Nevertheless, damage phenomena to the host rock need to be assessed, not only during the excavation, waste deposition, and repository...
Matrix acidizing is a well stimulation technique, consisting of injecting a reactive fluid, usually an acid, into the porous medium to dissolve minerals and remove near-wellbore damage. In carbonate formations, this process leads to the development of highly conductive channels known as wormholes, which provide preferential flow paths and significantly increase formation permeability. The...
Starch is a semi-crystalline polysaccharide organized into granules composed of amylose and amylopectin, whose hierarchical structure governs its physicochemical behavior. It is a widely available, renewable biopolymer used in numerous applications ranging from food processing to bio-based materials. Once transformed, starch forms a 3D solid network, the mechanical and transport properties of...
