Study on synthesis and performance of asphaltene inhibitors for Sudan crude oil
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.
alkylbenzamide polymerasphaltene inhibitorinitiation of precipitation pointprecipitation amountinhibition rateviscosity reduction rate
万方数据
维普
