酸渣的形成及抗酸渣剂的性能研究

Formation of Acid Slag and Performance Research of Anti-acid Slag Agent

在总结先前研究人员的研究成果基础上,对于酸渣的形成机制与形成酸渣的影响因素进行探讨。同时,建立起能定性、定量评价抗酸渣性能的实验方法,在不同酸液质量分数、不同铁离子质量分数的情况下,评价抗酸渣性能。通过实验研究可以发现,酸液质量分数的增加对酸渣产生影响不明显,铁离子质量分数的升高会增加酸渣的产生,抗酸渣剂加入体系后,酸渣量明显降低,具有优良的抗酸渣性能,三种抗酸渣剂均能满足稠油油田A的酸化作业需求。

On the basis of summarizing the previous research results,the formation mechanism of acid residue and the influencing factors of acid residue formation were discussed.At the same time,an experimental method was established to evaluate the anti-acid slag qualitatively and quantitatively,and the anti-acid slag performance was evaluated under the conditions of different acid concentration and different iron ion concentration.It was found that the increase of acid concentration had no obvious effect on the production of acid residue,and the increase of iron ion concentration promoted the production of acid residue.After adding acid residue inhibitor into the system,the amount of acid residue was reduced significantly.All three acid residue inhibitors met the acidification operation requirements of heavy oil field A.