硅酸凝胶属无机堵机，耐温、耐盐性能较好，在油井非选择性堵水和注水井调剖中应用广泛。用平板模型进行驱油、封堵试验，以对比不同封堵方式与封堵效果的关系。试验结果表明，堵剂失效的主要原因是水的绕流；在用同量凝胶堵剂进行封堵时，多次封堵比一次封堵的效果好，由近及远封堵比由远及近封堵效果好。图３表２参２（陈志宏摘 Silica gel is an inorganic plug machine, temperature, salt tolerance is better, non-selective plugging in wells and injection wells profile control widely used. With the flat model for oil displacement, plugging test to compare the different blocking methods and the relationship between the blocking effect. The test results show that the main reason for the plugging failure is the flow around the water. When using the same amount of gel plugging agent, the effect of multiple plugging is better than one plugging, and the closing plugging distance is far And the closure effect is good. Figure 3 Table 2 Reference 2 (Chen Zhihong Abstract