陕西科技大学学报2025，Vol.43Issue(3)：116-124,9.
油-壁相互作用力对近壁悬浮油滴捕获脱附动力学的影响
Influence of oil-wall interaction forces on capture and detachment dynamics of near-wall suspended droplets
摘要
Abstract
Near-wall suspended oil droplets are a common state of residual oil in high water cut oil reservoirs during extraction.To understand their capture and detachment dynamics is crucial for enhancing residual oil recovery.Current research primarily utilized contact angle to characterize wall properties but failed to describe the important feature of reservoirs—the complex interaction between oil droplets and walls.This study employed the extended Der-jaguin-Landau-Verwey-Overbeek(EDLVO)theory to establish an oil-wall interaction system and coupled it with computational fluid dynamics to further explore the capture and detach-ment dynamics of near-wall suspended oil droplets in microchannels.The results indicated:under different wall wettability,capillary numbers,and EDLVO forces,near-wall suspended oil droplets exhibit five typical dynamic states;on neutral surfaces,EDLVO forces suppress the transition of droplet dynamics from capture to sliding and promote droplet pinching;on oleophobic surfaces,EDLVO forces facilitate droplet detachment;EDLVO forces lead to in-creased deformation of oil droplets.This study contributes to understanding the role of oil-wall interaction forces in near-wall suspended oil droplet dynamics and transport laws,offer-ing valuable insights for enhancing crude oil recovery.关键词
近壁悬浮油滴/捕获脱附/油壁相互作用/高含水油藏Key words
near-wall suspended droplets/capture and detachment/oil-wall interaction/high-water cut oil reservoir分类
石油、天然气工程引用本文复制引用
和龙,袁开新,赵风羽,袁越锦..油-壁相互作用力对近壁悬浮油滴捕获脱附动力学的影响[J].陕西科技大学学报,2025,43(3):116-124,9.基金项目
国家自然科学基金项目(52106204,51876109) （52106204,51876109）
陕西省教育厅青年创新团队科研计划项目(22JP012) （22JP012）
