蒸汽吞吐后水平井筒内固液两相流动规律研究
发布时间：2018-10-12 13:07
【摘要】：水平井蒸汽吞吐严重出砂是困扰稠油开采的一大难题。本文根据现场条件,研究在不同的井况和流体物性情况下蒸汽吞吐后水平井筒内固液两相流场的流动规律。PIV粒子成像测速系统具有可进行全流场测试、直观、不干扰流场等优点,所以本文采用PIV系统对水平圆管内固液两相流流场的数据进行采集,首先确定了实际条件下蒸汽吞吐后期水平井筒内液相以及固相颗粒的流动参数,而后进行①研究PIV装置的测量原理及使用方法;②确定模拟水平井筒内固液两相流动的流场所需要的设计方案;③分别测试井筒流速、液体粘度、固相颗粒体积分数、颗粒粒径四个参数对固液两相流动规律的影响。④对示踪粒子进行成像,对采集到的一些图像进行相关分析。通过研究PIV装置的测量原理及使用方法,进行相应的物理实验模拟。PIV测试过程中主要考虑井筒流速、液体粘度、固相颗粒体积分数以及颗粒粒径对井筒流动状态的影响,找出了对井筒内固相体积分数、固定层高度以及液相压降等流动状态影响最大的因素,得到了不同参数对井筒内固相颗粒携带能力的影响规律,为砂岩油藏蒸汽吞吐后期水平井筒的适度出砂开采工艺设计以及稠油油藏热采出砂的综合治理提供理论依据。
[Abstract]:Steam stimulation in horizontal wells is a difficult problem for heavy oil production. According to the field conditions, this paper studies the flow law of solid-liquid two-phase flow field in horizontal well tube after steam huff and puff under different well conditions and fluid physical properties. PIV particle imaging velocimetry system can be used to test the whole flow field. Therefore, PIV system is used to collect the data of solid-liquid two-phase flow field in horizontal circular pipe. Firstly, the flow parameters of liquid and solid particles in horizontal well at the later stage of steam huff and puff are determined. Then 1 study the measuring principle and application method of PIV device, 2 determine the design scheme for the flow site of solid and liquid two-phase flow in horizontal wellbore, 3 test wellbore velocity, liquid viscosity, solid particle volume fraction respectively, The effects of four parameters of particle size on solid-liquid two-phase flow. 4. Imaging the tracer particles and analyzing the correlation between the collected images. Through studying the measuring principle and using method of PIV device, the corresponding physical experiment simulation is carried out. The influence of wellbore velocity, liquid viscosity, solid particle volume fraction and particle size on wellbore flow state is considered in PIV test. The factors that have the greatest influence on the flow state, such as the volume fraction of solid phase, the height of fixed layer and the pressure drop of liquid phase in the wellbore, are found out, and the influence of different parameters on the carrying capacity of solid particles in the wellbore is obtained. It provides a theoretical basis for the design of appropriate sand production process in horizontal wellbore in the later stage of steam huff and puff in sandstone reservoir and the comprehensive control of thermal recovery sand in heavy oil reservoir.
【学位授予单位】：东北石油大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TE357.44
本文编号：2266229
[Abstract]:Steam stimulation in horizontal wells is a difficult problem for heavy oil production. According to the field conditions, this paper studies the flow law of solid-liquid two-phase flow field in horizontal well tube after steam huff and puff under different well conditions and fluid physical properties. PIV particle imaging velocimetry system can be used to test the whole flow field. Therefore, PIV system is used to collect the data of solid-liquid two-phase flow field in horizontal circular pipe. Firstly, the flow parameters of liquid and solid particles in horizontal well at the later stage of steam huff and puff are determined. Then 1 study the measuring principle and application method of PIV device, 2 determine the design scheme for the flow site of solid and liquid two-phase flow in horizontal wellbore, 3 test wellbore velocity, liquid viscosity, solid particle volume fraction respectively, The effects of four parameters of particle size on solid-liquid two-phase flow. 4. Imaging the tracer particles and analyzing the correlation between the collected images. Through studying the measuring principle and using method of PIV device, the corresponding physical experiment simulation is carried out. The influence of wellbore velocity, liquid viscosity, solid particle volume fraction and particle size on wellbore flow state is considered in PIV test. The factors that have the greatest influence on the flow state, such as the volume fraction of solid phase, the height of fixed layer and the pressure drop of liquid phase in the wellbore, are found out, and the influence of different parameters on the carrying capacity of solid particles in the wellbore is obtained. It provides a theoretical basis for the design of appropriate sand production process in horizontal wellbore in the later stage of steam huff and puff in sandstone reservoir and the comprehensive control of thermal recovery sand in heavy oil reservoir.
【学位授予单位】：东北石油大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TE357.44
【参考文献】
相关期刊论文 前1条
1 龚安龙;王连泽;;旋风分离器减阻杆减阻的PIV实验研究[J];工程力学;2006年01期
，本文编号：2266229
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