In order to solve the problem of asphaltene deposition during the gathering and transportation of asphaltene rich crude oil,Sudan crude oil and its asphaltene were analyzed,and a series of alkyl benzamide polymer asphaltene inhibitors were developed and evaluated.Four kinds of asphaltene inhibitors had a good inhibition effect on the asphaltene of Sudan crude oil.Among them,APD-4 inhibitor has the most prominent effect.When the dosage is 0.05％,the initial precipitation point of asphaltene in Sudan crude oil is increased by 32.61％,the inhibition rate of asphaltene precipitation is 86.6％,and the viscosity reduction rate is 82.7％;When the dosage is 0.09％,the inhibition rate of asphaltene precipitation amount reaches 93.3％.The product has been field tested in an Oilfield in Sudan and popularized,with the cumulative increased crude oil volume exceeding 12300m3.
关键词
烷基苯酰胺聚合物/沥青质抑制剂/起始析出点/沉淀析出量/抑制率/降黏率
Key words
alkylbenzamide polymer/asphaltene inhibitor/initiation of precipitation point/precipitation amount/inhibition rate/viscosity reduction rate
维普
万方数据