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DL—1型堵漏试验装置，用对岩心施加围压、驱压和回压来模拟井壁所受的挤压和静压差的作用，并经流动相似分析，使流动的钻井液对岩心端面和对井壁的剪切应力相同，使实验条件与井下环境极为相似。实验装置可作静态、动态堵漏实验，可测试内滤饼反向承压能力和反驱流量等实验，在长庆油田堵漏项目的研究中取得了较好的实验研究效果，并在现场堵漏中得到了验证，在生产中见到了实效。
The DL-1 plugging test device simulates the squeezing and static pressure difference of the borehole wall by applying confining pressure, driving pressure and backpressure to the core. Through the similar analysis of flow, the drilling fluid flowing to the core The end face and the shear stress on the wall are the same, making the experimental conditions very similar to the downhole environment. The experimental device can be used for static and dynamic plugging experiments, tests of the reverse pressure-bearing capacity of the filter cake and anti-flooding flow, and has achieved good experimental research results in the plugging project of Changqing Oilfield. Plugging has been verified in the production to see the results.