焊管2025，Vol.48Issue(11)：64-72,9.DOI:10.19291/j.cnki.1001-3938.2025.11.008
页岩油井筒结蜡效应下多物理场耦合数值模拟
Numerical Simulation of Multi Physics Field Coupling under Wax Deposition Effect in Shale Oil Wellbore
摘要
Abstract
To study the influence of wax deposition on oil flow in shale oil wellbore,a numerical simulation was conducted to analyze the coupling between fluid and solid physical fields.The influence of different wax morphology and wax thickness on fluid flow pattern and velocity in shale oil wellbore are analyzed.Results showed that far away from the wax deposition area,the crude oil still flowed slowly,the streamlines were parallel to each other,and the streamline velocity of the annular flow section was axisymmetrically distributed.In the wax deposition area,the flow pattern and velocity were greatly disturbed,and the flow of crude oil to the un-waxed side was enhanced,and the peak flow velocity appeared in this area.When the wax deposition section was 1/2 fan ring and wax deposition thickness increases from 2 mm to 6 mm,the fluid was advection,the flow rate increased from 0.142 m/s to 0.183 m/s,and the disturbance length of the wax deposition area increased.When the wax deposition thickness was reduced from 2 mm and the wax deposition morphology was reduced from 1/2 fan ring to 1/5 fan ring,the fluid was advection flow,the flow rate was reduced from 0.142 m/s to 0.131 m/s,and the disturbance length of the wax deposition area was reduced.关键词
页岩油井筒/结蜡厚度/结蜡截面/流体流速/流体流态Key words
shale oil wellbore/wax deposition thickness/wax deposition section/fluid velocity/fluid flow state分类
石油、天然气工程引用本文复制引用
晁利宁,苑清英,曹振义,周新义,唐家睿,汪强,杨晓龙,史海鹏..页岩油井筒结蜡效应下多物理场耦合数值模拟[J].焊管,2025,48(11):64-72,9.基金项目
国家新材料重大专项项目资助"深海油气输送用管线钢及耐蚀合金特殊螺纹油套管的研制及应用"(项目编号2025ZD0611600). （项目编号2025ZD0611600）
