小分子缩醛酮对原油流动性的影响及其机理  

Effects of small molecule acetal and ketal compound on crude oil flow and its mechanism

作　　者：李永飞[1] 赵巍[1] 陈刚[1] 张洁[1] 吕阳伟 唐德尧 赵景瑞 

机构地区：[1]西安石油大学化学化工学院,陕西西安710065 [2]西安长庆科技工程有限责任公司,陕西西安710018 [3]陕西延长石油油田化学科技有限责任公司,陕西延安717400

出　　处：《复杂油气藏》2015年第4期69-72,77,共5页Complex Hydrocarbon Reservoirs

基　　金：陕西省科学技术研究发展计划项目(2014TG-09):抗盐耐温型表面活性剂驱油剂体系研究与应用;陕西省教育厅科研计划项目(2013JK0647):低渗透油田原油组分特征及其低温流动性改进研究

摘　　要：以醛酮和醇为原料合成缩醛酮类化合物,并将其作为原油流动性改进剂评价了对稠油粘度和凝点的影响。结果表明,所合成的缩醛酮类化合物对稠油的粘度影响较大,在20℃左右,降粘率均高于60%;缩醛类化合物有较好的降凝作用,凝点降低最高可达6.0℃,缩酮类化合物降凝降粘效果相对略差;该类化合物可以影响原油饱和烃结晶的形态,降低结蜡趋势。With alcohols, aldehydes and ketones as raw materials, the acetal and ketal compound was synthesized. And the impact of the compound on crude oil viscosity and pour point was evaluated as a flow improver. The results showed that the acetal and ketal compounds have large effects on the viscosity of heavy oil, viscosity reduction rate at about 20 ℃ is higher than 60% ;acetal compound has a good effect on pour point depressing with a highest one up to 6.0 ℃ ,ketal com- pound is slight worse. Besides, these compounds can affect saturated hydrocarbons forming crystalline wax to inhibit the paraffin precipitation trend.

关 键 词：缩醛 酮稠 油流动性改进剂 降粘 降凝 

分 类 号：TE869[石油与天然气工程—油气储运工程]