摘要
重油由于胶质、沥青质含量高,导致黏度较高,造成长距离管输困难。油溶性降黏剂分子可渗入胶质或沥青质分子层之间,起到降低重油黏度的作用。以丙烯酸十八酯、醋酸乙烯酯、马来酸酐、引发剂AIBN为原料,甲苯为溶剂,采用原位合成的方法合成SDY-3型油溶性降黏剂。采用委内瑞拉Merey16重油对油溶性降黏剂的性能进行评价,研究了反应单体、反应温度、反应时间、引发剂加剂量对SDY-3型油溶性降黏剂降黏效果的影响。结果表明,在10~50℃温度区间内,当添加降黏剂的质量分数为5%时,降黏率在41.19%~59.47%之间;变剪切速率和定剪切速率实验表明,加入SDY-3型油溶性降黏剂的委内瑞拉重油稳定性较好,降黏剂可用于复杂多变的管输环境。
The molecules of oil-soluble viscosity reducer can seep into molecular layers of colloid or asphalt to reduce viscosity of heavy oil. SDY-3 oil-soluble viscosity reducer was synthesized by in-situ synthesis method using vinyl acetate, maleic anhydride and initiator AIBN as raw materials and toluene as solvent. The effects of reaction conditions on the viscosity reduction of SDY-3 oil-soluble viscosity reducer were studied by investigating the reaction monomer, reaction temperature, reaction time and initiator dosage. The SDY-3 oil-soluble viscosity reducer was evaluated by applying Venezuelan Merey16 heavy-oil. The results showed that viscosity reduction rate of SDY-3 was 59.47% in the temperature range of 10 - 50 ℃, and the stability was good in complex and variable pipeline transportation conditions.
出处
《石油工程建设》
2017年第3期28-31,共4页
Petroleum Engineering Construction
关键词
Merey16重油
降黏率
油溶性降黏剂
合成
Merey16 heavy-oil
viscosity reduction rate
oil-soluble viscosity reducer
synthesis
