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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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胜利超稠油的乳化降黏机理研究
, PP. 679-684
Keywords: 超稠油,乳化降黏剂,降黏机理,sem
Abstract:
？研究了胜利油田滨南超稠油单56-4x4高黏的内在原因。油品性质分析结果表明,影响其高黏度的主要因素有两个:胶质、沥青质的总含量超过30%;有机杂原子o、n、s及过渡金属ni等形成的配位络合物增加了沥青质分子的内聚力。实验筛选出的降黏剂op-10对该超稠油降黏率高达99.59%。通过ft-ir、sem、分子量和偶极矩等分析对比了降黏剂作用前后胶质、沥青质的结构性质变化,结果表明,op-10使胶质、沥青质的氢键缔合作用减弱,部分拆散沥青质的堆积结构,从而使胶质、沥青质的分子量和偶极矩减小,分析得到降黏剂分子能渗透及分散胶质、沥青质的堆砌聚集体。偏光显微镜对乳状液及蜡晶微观形态的分析表明,降黏剂op-10使超稠油乳状液由w/o型反相为o/w型而起到降黏作用;使蜡晶的聚集形态由细小均匀转变为尺寸较大的絮凝体,破坏蜡晶的三维网络结构,促进稠油黏度的下降。
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