石油化工高等学校学报Issue(5)：80-84,5.DOI:10.3969/j.issn.1006-396X.2014.05.017
不同尺寸段塞组合等流度二元驱驱油效果评价
Evaluation of SP Flooding Effect of Different Size Slug Combination with Equi-Mobility
摘要
Abstract
Since the implementation of SP Flooding in Jin 1 6 block of Liaohe oilfield,there are still some problems existing in some inj ection wells.For example,the monolayer liquid absorption amount is too large and front advance velocity in each layer is not uniform,which resulted in the faster rising of polymer concentration in production wells.In order to evaluate the SP flooding effect of different size slug combination with equi-mobility, SP flooding experiments were conductedusing homogeneous and heterogeneity core.The results showed that the oil recovery of Equi-mobility Displacement method was 3.54% higher than the conventional single slug SP flooding when the polymer and surfactant were used with the same dosage. Equi-mobility the diversion rate of the medium and low permeability layer can be obviously improved when the displacement method was uesd.Conversely,the high permeability layer was reduced.Therefore,a reasonable combination of different size equi-mobility SP slug can effectively improve the oil recovery efficiency of the heterogeneous core.关键词
二元驱/等流度/多段塞/非均质/采收率Key words
SP flooding/Equi-mobility/Multi slug/Heterogeneous/Oil recovery efficiency分类
能源科技引用本文复制引用
闫文华,付强,杨兆明,郑晓松,崔洪志..不同尺寸段塞组合等流度二元驱驱油效果评价[J].石油化工高等学校学报,2014,(5):80-84,5.基金项目
中国石油科技创新基金“特高含水期二元驱多段塞等流度驱油方法研究”(2013D-5006-0203)。 （2013D-5006-0203）
