摘要
本文系统阐述了国内外管道砂沉积的研究成果,总结了基于管道砂砾运动状态及分布、细颗粒表面物理化学作用及临界速度对颗粒运动状态的转变等的砂沉积机理;介绍了颗粒属性、流体介质及管道结构等因素对单相流体携砂及多相流体携砂的影响,重点分析了颗粒尺寸、液相黏度及多相流流型等因素的影响;介绍了国内外现有的管道流体携砂临界速度建模方法,重点分析了由单相流体携砂临界速度模型扩展至多相流的方法。最后指出未来多相流管道砂沉积问题的研究应从砂沉积机理入手,探索多相流管道砂沉积及运输的影响机制,确定关键影响因素,并结合多相流动机理建立准确性高、适用性强的预测模型。
In this paper,the achievements of research of sand deposition in pipelines at home and abroad were elaborated systematically at the beginning,which mainly summarize sand deposition mechanisms from the aspects of pipeline sand particle motion status and distribution,surface physical and chemical reactions of fine particles,and the transformation of particle motion status with critical velocity,etc.;secondly,the effects of particle attributes,fluid mediums,pipeline structure,and other factors on the single-phase or multi-phase flow sand-carrying capability were described,and more attention was paid on the effects of the particle size,fluid viscosity,multi-phase flow pattern,etc.;and further,existing modeling methods for sand-carrying critical velocity of pipeline fluid were introduced,and the method to develop the sand-carrying critical velocity for single-phase fluid into the multi-phase flow was emphasized.And finally,it concluded that further research of sand deposition with multi-phase flow in pipelines should begin with the research of sand deposition mechanisms,aim to explore the influencing mechanism of multi-phase flow sand deposition and transportation,define critical influencing factors,and build a prediction model of high accuracy and strong application with reference to multi-phase flow mechanisms.
作者
石凯月
何利民
罗小明
静玉晓
杨东海
李清平
苏健鹏
SHI Kaiyue;HE Limin;LUO Xiaoming;JING Yuxiao;YANG Donghai;LI Qingping;SU Jianpeng(College of Pipeline and Civil Engineering,China University of Petroleum,Qingdao,Shandong 266580,China;CNOOC Research Institute Co.,Ltd.,Beijing 100028,China)
出处
《中国海上油气》
CAS
CSCD
北大核心
2018年第3期188-196,共9页
China Offshore Oil and Gas
基金
"十三五"国家科技重大专项"海洋深水油气田开发工程技术"项目子课题"深水天然气凝析液控砂与射流清管技术(编号:2016ZX05028-004-003)"部分研究成果
关键词
管道
砂沉积
沉积机理
影响因素
流体携砂
临界速度
预测模型
研究方向
pipeline
sand deposition
deposition mechanism
influencing factors
sand carrying by fluid critical velocity
prediction model
research prospect
