油田三采助剂对原油性质的影响

摘要

以油田常用的三采助剂为研究对象,通过模拟原油开采过程,研究了油田三采助剂对南阳原油性质的影响.研究结果如下:油田三采助剂在正常使用量范围内不会影响原油的性质,超过使用量则负作用明显;使用三采助剂不会影响原油中S、Cl、N含量,但磺酸盐类、高C1助剂除外;应控制或限制高CL助剂使用;三采助剂与原油中的乳化层存在一定关联,应引起注意.%The effect of oilfield EOR agents on Nanyang crude oil properties was studied by simulating the process of crude oil production.The results show that,the agents don't have a great influence on produced oil properties when amount of the agents is appropriate;if amount of the agents is excess,they will have negative effect on produced oil properties;The use of agents except for sulfonates and high C1 agents does not affect sulfur content,N content and chlorine content in crude oil;There is a relationship between EOR agents and oil-water emulsion in crude oil.