气候变化领域集成服务门户(CCPortal): Water level and mobilisation of colloids in porous media

CCPortal

DOI	10.1016/j.advwatres.2020.103670
	Water level and mobilisation of colloids in porous media
	Chequer L.; Bedrikovetsky P.; Badalyan A.; Gitis V.
发表日期	2020
ISSN	0309-1708
卷号	143
英文摘要	Unforeseen clogging and low well productivity during exploitation of oil and gas reservoirs result from a mobilisation of densely deposited particles. The proposed model predicts the mobilisation in unsaturated porous media based on the changes in water level, and hydrophilicity and size of mobilisable particles. Domains of particle attachment, sliding, rolling, and lifting were found from a phase diagram based on a mechanical equilibrium. The degree of mobilisation was correlated with experimental data through a maximum retention function. The validity of the proposed model was confirmed by a close match of theoretical predictions with results of 46 laboratory tests on particle detachment. Our analysis shows that it is practically impossible to remove 2 μm charged colloids from a dry porous media. Nearly desalinated water with ionic strength of 0.001 M or less are needed to mobilise particles in saturated media at typical groundwater conditions. A gradual increase in water level is key for mobilisation in unsaturated media. The proposed model can be used to forecast a potential well clogging. © 2020
关键词	Colloids Groundwater Ionic strength Petroleum industry Petroleum reservoir engineering Petroleum reservoirs Porous materials Water filtration Water levels Desalinated water Groundwater conditions Mechanical equilibrium Oil and gas reservoir Particle attachments Particle detachments Unsaturated porous media Well productivity Particle size analysis colloid groundwater numerical model porous medium prediction vadose zone water level well water
语种	英语
来源机构	Advances in Water Resources
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/131743
推荐引用方式 GB/T 7714	Chequer L.,Bedrikovetsky P.,Badalyan A.,et al. Water level and mobilisation of colloids in porous media[J]. Advances in Water Resources,2020,143.
APA	Chequer L.,Bedrikovetsky P.,Badalyan A.,&Gitis V..(2020).Water level and mobilisation of colloids in porous media.,143.
MLA	Chequer L.,et al."Water level and mobilisation of colloids in porous media".143(2020).