一剂双效稠油降黏剂的制备与性能评价
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中国石油重大科技专项“西南油气田天然气上产300亿立方米关键技术研究与应用 — —四川盆地页岩气田开发工艺技术优化研究及应用”(项目编号2016E0612)。


Preparation and Performance Evaluation of Double-effect Heavy Oil Viscosity Reducer
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    摘要:

    为获得耐温抗盐和降黏效果良好的稠油降黏剂,以油酸、N,N-二甲基-1,3-丙二胺、1,3-丙磺酸内酯为原料制备了磺基甜菜碱表面活性剂YJN-1,既能作为油溶性降黏剂又能作为乳化降黏剂,具有一剂双效的功能。研究了YJN-1加量和温度对稠油的降黏效果,考察了YJN-1作为乳化降黏剂时的耐温抗盐性。结果表明,作为油溶性降黏剂时,在50℃、0.5%的加量下,YJN-1对新疆和胜利稠油的降黏率约为91%,降黏效果优于部分商品降黏剂;作为乳化降黏剂时,在50℃下,0.15%的YJN-1对两种稠油的乳化降黏率约为99%;乳液能自动破乳脱水,脱水率为96.4%~98.2%。YJN-1具有良好的耐温抗盐性能,抗盐达85 g/L,耐温达160℃,耐温抗盐和降黏效果良好。图6表4参20

    Abstract:

    In order to obtain a heavy oil viscosity reducer with good temperature resistance,salt resistance and viscosity reduction,sulfobetaine surfactant YJN-1 was prepared by oleic acid,N,N-dimethyl-1,3-propanediamine and 1,3-propanesultone. YJN-1 could be used not only as an oil-soluble viscosity reducer but also as an emulsifying viscosity reducer,showing a dual-effect function. The effects of YJN-1 dosage and temperature on the viscosity reduction of heavy oil were studied. The temperature resistance and salt resistance of YJN-1 as an emulsifying viscosity reducer were investigated. The experiment results showed that as an oil-soluble viscosity reducer,the viscosity reduction rate of YJN-1 to Xinjiang and Shengli heavy oil was about 91% under the condition of 50℃ and 0.5% dosage,whose viscosity reduction effect was better than that of some commercial reducers. As an emulsification viscosity reducer,0.15% YJN-1 had an emulsification viscosity reduction rate of about 99% for two heavy oils at 50℃. The emulsion could be dehydrated automatically,and the dehydration rate was 96.4%—98.2%. YJN-1 had good resistance of temperature(160℃)and salt(85 g/L),and good viscosity reduction

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于世虎.一剂双效稠油降黏剂的制备与性能评价[J].油田化学,2019,36(3):518-522.
YU Shihu. Preparation and Performance Evaluation of Double-effect Heavy Oil Viscosity Reducer[J]. OILFIELD CHEMISTRY,2019,36(3):518-522.

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  • 在线发布日期: 2019-07-31
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