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Keywords: co 2
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Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-2107
... ABSTRACT: CO 2 fracturing with many unique advantages has been successfully used as an alternative to water-based fracturing in unconventional gas production. However, the great difference of fracturing behaviours between water and CO 2 fracturing for different gas reservoirs is still...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1609
... Abstract Secure CO 2 geological storage necessitates robust monitoring methods to provide assurance of CO 2 storage. Pressure monitoring above the injection zone is a method to detect potential CO 2 leaks into overlying formations. We built a CO 2 storage model to characterize pressure...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1196
... ABSTRACT: Failure at the cement-casing microannulus is thought to be one of the most significant mechanisms that compromises wellbore integrity and can result in leakage of CO 2 and other fluids. In this work, we developed an experimental system that enables the investigation...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1684
.... For the caprock integrity, the CO2 injection show smaller impact on caprock elements overlying the storage formation. 1. Introduction Production and injection of fluids and gases into reservoirs, e.g. hydrocarbon production, stimulation of hydrocarbon and CO 2 sequestration, causes pore pressure changes...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1399
... ABSTRACT: A challenge in CO 2 storage reservoir is how to identify and prevent leakage. The wellbore, used to inject CO 2 , could become a leakage path, for example, through the cement-rock interface. The influence of CO 2 on Draupne shale was investigated first. Shale samples were exposed...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1100
... ABSTRACT: The depleted shale reservoirs have shown promising potentials for permanent geological CO 2 storage (GCS) either as a caprock or as reservoir storage units. In this study, we experimentally investigated the impact of localized biogeomechanical process on geological CO 2 storage...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1852
... ABSTRACT: It is widely accepted that massive deployment of Carbon Capture and Storage (CCS) in geologic media at the gigatonne scale should be part of the mitigating pathways toward net-zero CO 2 emissions. For a successful geologic CO 2 storage, the caprock sealing capacity...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1847
... ABSTRACT: A study is conducted to measure acoustic velocities of carbonates with varying CO 2 saturation at reservoir conditions. Three samples from the proposed injection zone of K-field were tested in a modified triaxial rig with CO 2 core-flooding capability for measurement...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1164
... ABSTRACT: In this study, the elastic modulus and hardness of the middle Bakken were characterized by the nanoindentation technique and homogenization models for its pre- and post-CO 2 saturation conditions. This was done based on the analyses of mineralogical compositions from X-Ray...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1327
... ABSTRACT: With a goal of realising a low-carbon emission society, CO 2 Capture and Storage (CCS) has been receiving more attention lately. Injecting CO 2 into a reservoir is becoming matured by field case studies in the North Sea. The reservoir and the surrounding caprock always face...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1762
... ABSTRACT: Continuous monitoring of field conditions over 5 years of intermittent cold CO 2 injection at the Aquistore storage site, a Canadian CCS demonstration project, suggests a general increase in well injectivity performance with time. This paper presents injectivity-relevant field...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0064
... ABSTRACT: Supercritical carbon dioxide (CO 2 ) is used as a heat transmission fluid for the geothermal development in enhanced geothermal systems (EGS), aiming at improving the efficiency of heat mining and alleviating the emission of the world greenhouse gas. Buoyancy effects contributed...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0129
... ABSTRACT: Reliable estimation of debonding and leakage path formation at a well's cement and caprock interface is particularly important for long term CO 2 sequestration, where sealing of the injection wells has to last for centuries and where stresses will likely evolve with time. Models...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0057
..., and underestimated the initial compliant porosity of the sandstone. This phenomenon continued to influence the stress-strain behaviors during the triaxial loading stage. Reservoir Characterization Upstream Oil & Gas structural geology subsurface storage co 2 threshold strength property...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0252
... ABSTRACT: It is well recognized that injecting CO 2 in methane-saturated coal seams can initially decrease the injectivity, followed by a permeability rebound as gas pressure increases. Studies showed that such permeability change is related to the adsorption-deformation coupling which...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0379
... third of the uniaxial strain loading compressibility in the range of mean effective stress from 10 to 14 MPa. The uniaxial strain compressibility is expected to be roughly one half of the isotropic compressibility. Reservoir simulation of CO 2 injection in a compartmentalized formation indicate...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0442
... shale gas complex reservoir bedding direction peak position nanopore co 2 coal bed methane coal seam gas coal international journal reservoir geomechanics coalbed methane Upstream Oil & Gas stress loading evolution perpendicular compression anisotropy structure evolution pore size...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0450
... specimen showed plasticization under a higher confining stress condition; anthracite coal has a strong adsorption effect on CO 2 and the free gas phase CO 2 adsorption can cause a dramatic peak strength deterioration; coal strength deterioration was exacerbated with respect to gas pressure. However...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0514
... ABSTRACT: In order to reduce the anthropogenic greenhouse-gas emissions, CO 2 geological storage has been proposed. Many applications for CO 2 geological storage exist, such as injecting CO 2 into depleted hydrocarbon reservoirs, enhanced coalbed methane recovery, and enhanced oil recovery...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-1524
... and gas in the reservoir. This experimental study can lay a certain foundation for the application of supercritical CO 2 fluid in oil and gas exploitation. fracturing materials fracturing fluid proppant co 2 shale hydraulic fracturing mudstone Artificial Intelligence Upstream Oil & Gas...

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