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发明公开
CN109779593A 一种可实现三维流场测试的可视化平板裂缝装置 有权

一种可实现三维流场测试的可视化平板裂缝装置
摘要：
本发明公开了一种可实现三维流场测试的可视化平板裂缝装置，由压裂液配制罐1、输送泵3、模拟井筒4、平板裂缝7、出口立管8、压力计9、流量计11、废液处理罐12、PIV激光仪5、PTV光源6、CCD相机18组成，压裂液配制罐1通过输送泵3连接模拟井筒4的顶端，模拟井筒4与平板裂缝7连通，平板裂缝连接出口立管8，出口立管连接废液处理罐12；所述平板裂缝7由不少于两段、空间连通的缝状流动通道串联而成。PIV激光仪5和CCD相机18组成粒子图像测速仪，测试平板裂缝中流体速度场。PTV光源6和CCD相机18组成颗粒追踪测速仪，测试平板裂缝中颗粒速度场。本发明可获得流场区域内压裂液和支撑剂的速度分布，为水力压裂施工参数优化、支撑剂优选提供依据。
摘要（英）：

The invention discloses a visual flat crack device capable of realizing a three-dimensional flow field test. The device comprises a fracturing fluid preparation tank 1, a delivery pump 3, a simulationwellbore 4, a flat crack 7, an outlet riser 8, a baresthesiometer 9, a flowmeter 11, a water liquid treatment tank 12, a PIV laser instrument 5, a PTV light source 6, and a CCD camera 18. The fracturing fluid preparation tank 1 is connected with the top end of the simulation wellbore 4 through the delivery pump 3; the simulation wellbore 4 communicates with the flat crack 7; the flat crack is connected with the outlet riser 8; and the outlet riser is connected with the waste liquid treatment tank 12; and the flat plate crack 7 is formed by connecting at least two sections of crack-shaped flowing channels with communicating spaces in series. The PIV laser instrument 5 and the CCD camera 18 form a particle image velocimeter for testing a fluid velocity field in the flat crack. The PTV lightsource 6 and the CCD camera 18 form a particle tracking velocimeter for testing the particle velocity field in the flat crack. According to the method, the velocity distribution of the fracturing fluid and the propping agent in the flow field area can be obtained, and a basis is provided for hydraulic fracturing construction parameter optimization and propping agent optimization.

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