Numerical simulation study on influence of coal fines migration on porosity and permeability in cataclastic coal [PDF]
During coalbed methane (CBM) production, coal fines within the reservoir can migrate, potentially blocking pore throats and resulting in a significant reduction in reservoir permeability. This process adversely affects the final CBM yield. To investigate
SHI Hui, XIE Tiancheng, LIU Ziliang, JIANG Zhikun, WEI Yingchun
doaj +1 more source
Migrant Labour in the Russian Economy: a Burden or a Blessing? [PDF]
The article discusses the potential threats and benefits of external labour migration for the Russian economy through establishing cause-effect relations between the migration processes and the current economic situation. The analysis of statistical data
Koretskaya-Garmash, V. A.
core +2 more sources
Effect of hydrochemical properties on the migration of coal fines in propped fractures
The problem of coal fines restricts the efficient development of coalbed methane in China. The coal sample of No. 3 coal seam in the Shanxi Formation in the Hancheng mining area was selected for carrying out a physical simulation experiment on the effect
Ziliang LIU +5 more
doaj +1 more source
Broken lines of Il/Legality and the reproduction of state sovereignty: the impact of visa policies on immigrants to Turkey from Bulgaria [PDF]
After the granting of citizenship to the 300,000 Turkish migrants from Bulgaria in 1989, the Turkish state has proceeded to enact a series of visa regime changes concerning more recent migrants from Bulgaria, who, according to the most recent ...
Kasli, Zeynep Ulker +3 more
core +1 more source
Application of silica nanofluid to control initiation of fines migration
: Core flooding experiment was carried out through SiO2 nanofluid, which was used to change the surface properties of the pore walls, improve the attractive force between fines and pores walls against the hydrodynamic repulsive force in order to increase
Reza HASANNEJAD +3 more
doaj +1 more source
Using nanotechnology to prevent fines migration while production
Formation damage due to fines migration is a major reason for well productivity decline for oil and gas wells. Formation fines are small enough to pass through pore throats causing pore plugging and permeability decline.
Mohamed Mansour +3 more
doaj +1 more source
Contrasting the conceptualisation of victims of trafficking for sexual exploitation: a case study of Brazilians in Spain and Portugal [PDF]
Despite the significant emphasis given to the trafficking of Brazilians to the sex industry of the Iberian Peninsula, the concepts of “victim of trafficking for sexual exploitation” used in these three countries vary.
Lima De Perez, Julie
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Evidence, Mechanisms and Improved Understanding of Controlled Salinity Waterflooding Part 1 : Sandstones [PDF]
Acknowledgements TOTAL are thanked for partial supporting Jackson through the TOTAL Chairs programme at Imperial College London, for supporting Vinogradov through the TOTAL Laboratory for Reservoir Physics at Imperial College London, and for granting ...
Chamerois, M +3 more
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Fines Migration: Problems and Treatments
Fines migration can cause severe damage to formation permeability and can plug the formation under certain circumstances. To effectively address this address, the mechanisms of fines migration and factors that causing fines migration were analyzed in this study.
Jie Xiao, Jianghong Wang, Xin Sun
openaire +1 more source
Coal fines migration exerts negative impacts on early water drainage of undersaturated coal seam gas (CSG) reservoirs. The complicated migration process results in ineffective and inaccurate forecast of coal fines production.
Xiaolong Peng +6 more
doaj +1 more source

