三种不同VES的测试结果及分析

三种不同VES的测试结果及分析

       三种不同的VES转向剂，在配方条件下，在140度和150度条件下2个小时的测试结果如下：

       测试方法以及测试结果如下：

       This section presents the test results for three different VES diverting agents, showing their performance over 2 hours at 140°C and 150°C under the specified formulation conditions.

         The testing methodology and corresponding results are detailed below:

一   测试方法

I. Testing Methods

1、基液配制：在20%盐酸以及其它助剂配合条件下进行测试。

1. Base Fluid Preparation
The test was conducted under the conditions of 20% hydrochloric acid combined with other additives.

2、流变性能测试

将残酸洗液转移到流变仪中，将温度从25℃提高到140℃温度或150度，升温温度梯度为3℃/min，剪切速率为100s^-1。升温至140度或150度后，保持温度2个小时，整个测试共计时间大约150分钟。

2. Rheological Performance Testing
    We transferred the spent acid cleaning fluid to the rheometer and raised the temperature from 25°C to either 140°C or 150°C. This was done at a heating rate of 3°C/min and a shear rate of 100 s⁻¹. Following this, we maintained the temperature for 2 hours, resulting in a total test time of approximately 150 minutes.

二  测试结果 

II. Test Results

1  140度条件下2小时的测试图谱

2  150度条件下2小时的测试图谱

3  140度条件下2小时的测试图谱

    上面三个图谱，是三种不同VES的图谱。两个测试检测配方相同，图1温度是140度两小时、图2温度是150度两小时、图3温度是140度两小时。

     The three graphs above correspond to three different types of VES. The test formulations are the same for both experiments: Figure 1 was tested at 140°F for two hours, Figure 2 at 150°F for two hours, and Figure 3 at 140°F for two hours.

     图1显示，随着时间的持续，粘度持续下降，如果时间再延长，粘度还会持续减小，其原因是功能性基团在恶劣检测条件上，功能基团持续不断遭到破坏，粘度就呈一直下降趋势。

       图2显示，随着时间的持续，粘度并未随着时间的延续呈明显下降趋势，而是平行于横轴，说明在恶劣检测条件下，功能基团持续发挥作用，并未遭到破坏，因此粘度曲线呈比较平坦的线。

      Figure 2 shows that as time progresses, the viscosity does not exhibit a significant decreasing trend over time but remains parallel to the horizontal axis. This indicates that under harsh testing conditions, the functional groups continue to remain effective without being degraded, resulting in a relatively flat viscosity curve.

      图3显示，温度从常温升到120度这个区间，胶束网格的粘度随温度的不断上升得到不断的优化排列而上升，120度到140度的这个区间，胶束网格在这个温度下由于热运动的持续加剧，而使粘度迅速降低；降到*低点后，在持续140度下，被破坏的胶束网格由于重新排列为较为致密、稳定，粘度缓慢上升，直至达到新的平衡，粘度稳定在270cp左右，并且由于亲水头基得到有效的保护，胶束网格的动态平衡保持在一个比较高的水平上；故而粘度曲线缓上升后达到稳定平行。

      Figure 3 shows that as the temperature increased from ambient to 120°C, the viscosity of the micellar network rose due to continuous optimization of its arrangement with increasing temperature. In the range of 120°C to 140°C, however, intensified thermal motion caused the viscosity to decrease rapidly. After reaching the lowest point, under sustained exposure to 140°C, the disrupted micellar network rearranged into a more compact and stable structure, leading to a gradual recovery in viscosity until a new equilibrium was achieved. The viscosity eventually stabilized at around 270 cP, and due to effective protection of the hydrophilic head groups, the dynamic equilibrium of the micellar network was maintained at a relatively high level. As a result, the viscosity curve slowly rose and then plateaued.