论文部分内容阅读
酸压技术是储层增产改造的重要手段之一,而导流能力是影响酸压效果的重要因素,运用酸蚀裂缝导流能力实验仪,分析酸种类、酸用量、酸浓度、岩性等对导流能力的影响,得出:酸种类对酸蚀效果影响程度的大小顺序为:高温胶凝酸>自转向酸>变粘酸;变粘酸随着酸液用量的增加对岩板导流能力的影响越来越大;随变粘酸酸浓度的增加,导流能力增大,而导流能力保持率先增大后减小说明变粘酸的浓度存在最佳值;酸液对灰岩的腐蚀能力最强,白云岩较弱,碎屑岩最弱。
The acid pressure technology is one of the important means of reservoir stimulation. The diversion ability is an important factor that affects the acid pressure effect. Using acid erosion crack conductivity tester, the acid type, acid dosage, acid concentration, lithology and so on The results show that the order of acidity affecting acid etching effect is as follows: high temperature gelling acid> self-turning acid> variable viscosity acid; The influence of flow capacity is more and more. With the increase of the concentration of mucolytic acid, the flow conductivity increases, while the retention of flow conductivity firstly increases and then decreases. Rock has the strongest corrosion potential, dolomite is weaker and clastic rock is the weakest.