酸化转向用季铵盐阳离子型表面活性剂的合成与评价
发布时间：2019-02-27 21:08
【摘要】：粘弹性表面活性剂自转向酸体系在酸化过程中可以自动转向,使地层尽可能地达到均匀酸化。粘弹性表面活性剂是自转向酸的重要组成部分,为此,在室内通过缩合反应和季铵化反应合成得到了一种粘弹性表面活性剂,通过正交优化实验,得出合成的最优化条件。利用该表面活性剂配制了新型的粘弹性表面活性自转向酸,并与另一种甜菜碱类表面活性剂自转向酸进行性能对比评价。室内实验结果表明,季铵盐阳离子类自转向酸体系,粘度随粘弹性表面活性剂浓度的增加而升高,随pH的升高而升高,随温度的升高而降低。并通过与甜菜碱类自转向酸体系对比认为:季铵盐阳离子类自转向酸体系的粘度对主剂浓度改变更敏感;在pH升高时变粘性能更好;受温度条件限制更明显。在合适的条件下进行旋转圆盘实验,测不同转速下的酸岩反应速率,得到自转向酸与碳酸盐岩反应动力学方程;用实验数据绘制酸岩反应临界转速版图,并以此判断实验条件下反应为H+传质控制;通过计算不同酸浓度下H+有效传质系数,得出有效传质系数与温度的关系不符合阿伦尼乌斯方程。
[Abstract]:The viscoelastic surfactant self-steering acid system can turn automatically in the acidizing process so that the formation can be acidified even as much as possible. Viscoelastic surfactant is an important part of self-steering acid. Therefore, a viscoelastic surfactant was synthesized by condensation reaction and quaternification reaction in the laboratory. The optimum conditions of synthesis were obtained by orthogonal optimization experiment. A new type of viscoelastic surfactant self-steering acid was prepared and compared with another betaine surfactant self-steering acid. The experimental results show that the viscosity of quaternary ammonium salt cationic self-steering acid system increases with the increase of viscoelastic surfactant concentration, increases with the increase of pH, and decreases with the increase of temperature. Compared with betaine self-turning acid system, the viscosity of quaternary ammonium salt cationic self-turning acid system is more sensitive to the change of the concentration of main agent, the viscosity is better when pH is increased, and the temperature limit is more obvious. Under the suitable conditions, the rotating disk experiment was carried out to measure the reaction rate of acid and rock at different speeds, and the kinetic equation of the reaction between self-steering acid and carbonate rock was obtained. The critical rotation speed of acid-rock reaction was plotted with the experimental data, and the reaction was judged to be H-mass transfer control under the experimental conditions. By calculating the effective mass transfer coefficient of H at different acid concentrations, the relationship between the effective mass transfer coefficient and temperature is not in accordance with the Arlenius equation.
【学位授予单位】：中国石油大学(华东)
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TE39
本文编号：2431579
[Abstract]:The viscoelastic surfactant self-steering acid system can turn automatically in the acidizing process so that the formation can be acidified even as much as possible. Viscoelastic surfactant is an important part of self-steering acid. Therefore, a viscoelastic surfactant was synthesized by condensation reaction and quaternification reaction in the laboratory. The optimum conditions of synthesis were obtained by orthogonal optimization experiment. A new type of viscoelastic surfactant self-steering acid was prepared and compared with another betaine surfactant self-steering acid. The experimental results show that the viscosity of quaternary ammonium salt cationic self-steering acid system increases with the increase of viscoelastic surfactant concentration, increases with the increase of pH, and decreases with the increase of temperature. Compared with betaine self-turning acid system, the viscosity of quaternary ammonium salt cationic self-turning acid system is more sensitive to the change of the concentration of main agent, the viscosity is better when pH is increased, and the temperature limit is more obvious. Under the suitable conditions, the rotating disk experiment was carried out to measure the reaction rate of acid and rock at different speeds, and the kinetic equation of the reaction between self-steering acid and carbonate rock was obtained. The critical rotation speed of acid-rock reaction was plotted with the experimental data, and the reaction was judged to be H-mass transfer control under the experimental conditions. By calculating the effective mass transfer coefficient of H at different acid concentrations, the relationship between the effective mass transfer coefficient and temperature is not in accordance with the Arlenius equation.
【学位授予单位】：中国石油大学(华东)
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TE39
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