TA162824原油破乳剂的复配

Combinational demulsifiers of TA162824

以有机胺为起始剂、环氧乙烷和环氧丙烷为单体、氢氧化钾为催化剂,合成嵌段聚醚型破乳剂单剂TA162824,用TA162824分别与助剂TEAC和DMA按不同比例进行复配,用瓶试法分别对陕北油田的河庄坪和子长原油进行脱水实验。结果表明,对河庄坪原油,在55℃,破乳剂总用量100 mg/L,脱水时间6 h时,TA162824与TEAC以2∶3和3∶2、与DMA以4∶1的比例进行复配,脱水率最高,分别达到99.7%、97.8%;对子长原油,在65℃,破乳剂总用量200 mg/L,脱水时间6 h时,TA162824与TEAC以2∶3和1∶4、与DMA以4∶1的比例进行复配,脱水率最高,分别达到97.3%和99.3%。其中TA162824与TEAC以2∶3、与DMA以4∶1的复配物对这两种不同原油的脱水率等性能都好,适应性强。

Using organic amine as primer, propylene oxide （PO） and epoxy ethane （EO） as monomer, potassium hydroxide as catalyst, the TA162824 multi-block polyether demulsifier was synthesized and combined with TEAC and DMA at different proportions. Dehydration experiments of the combinational demulsifiers were conducted at 55 ℃ in 6 h at demulsifier concentration of 100 mg/L for Hezhuangping crude oil, and at 65 ℃ in 6 h at demulsifier concentration of 200 mg/L for Zichang crude oil in North Shaanxi oil fields by bottle test. The results showed that for Hezhuangping crude oil at the proportions of TA162824 to TEAC 2 ： 3 and 3 ： 2, and that to DMA 4 ： 1, the highest dehydration rates of combinational demulsifiers were 99.7%, 97.8% and 95.8% respectively. For Zichang crude oil, the highest dehydration rates of combinational demulsifiers were 97.3% and 99.3% at the proportions of TA162824 to TEAC 2 ： 3 and 1 ; 4, and that to DMA4 ： 1. For Hezhuangping and Zichang crude oil at the proportion of TA162824 to TEAC and DMA 2 ： 3 and 4 ： 1, the combinational demulsifiers had good dehydration rate and strong applicability.