A series of sulfonated heavy crude oil (SHCO) are prepared through sulfonating a heavy crude oil of Liaohe with viscosity 1 153 mPa·s at 50℃ by 50-60% sulfuric acid at low temperatures 15-20℃ and, introduced into the heavy crude at dosage 2 g/kg, reduce its viscosity at 50℃ to 786-914 mPa·s with viscosity reduction rate being 19.
在低温下 (15～ 2 0℃ )用 5 0 %～ 6 0 %的硫酸将辽河稠油磺化 ,得到了一系列磺化稠油 ,在 5 0℃粘度为 115 3mPa·s的辽河稠油中按质量比 2 g/kg加入磺化稠油 ,使 5 0℃粘度降至 786～ 914mPa·s ,降粘率为 19。