期刊名称：IOP Conference Series: Earth and Environmental Science
印刷版ISSN：1755-1307
电子版ISSN：1755-1315
出版年度：2018
卷号：186
期号：2
页码：012011
DOI：10.1088/1755-1315/186/2/012011
语种：English
出版社：IOP Publishing
摘要：In order to achieve the diversion of fluid flow, exploit the remaining oil in small pores and improve the oil recovery, a method of nano/micron-sized polymeric particles flooding was applied to low permeability reservoirs. The inhomogeneous flooding experiments show that the nano/micron-sized polymeric particles can greatly expand the wave volume and reduce the water content with an increase of 7.4%, 16.5% and 26.8% in the high, medium and low permeability layers, respectively. Based on the analysis of its percolation mechanism and percolation law, the mathematical model of nano/micron-sized polymeric particles flooding was established according to the mass transfer fluid mechanics, the chemical dynamics and the principle of material balance. The numerical simulation results show that it is feasible to carry out the nano/micron-sized polymeric particles flooding in low permeable and high water cut oilfields. It can increase the oil recovery of 7.6% and achieve better oil displacement effect.
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