The oil composition in this area is different with the major oil fields in the placanticline: it has a low content of asphaltenes, carbon number distribution curve shifting toward low carbon,and low average relative molecular quality.
而葡北原油组成与长垣主力油田的原油不同: 葡北原油的胶质沥青质含量较低、碳数分布曲线向低碳偏移, 平均相对分子质量偏低。
参考来源 - 大庆葡萄花油田北部复合驱可行性探讨·2,447,543篇论文数据，部分数据来源于NoteExpress
以上来源于: WordNet
The VPO average molecular weight of vacuum residues and asphaltenes all decreased.
减压渣油和正庚烷沥青质的VPO平均相对分子质量都减小了。
The stability of asphaltenes in crude oil is mainly dependent on the asphaltenes solubility of crude oil.
沥青质在原油中的稳定性主要取决于原油对沥青质的溶解能力。
Not mainly the ageing of resins and asphaltenes but that of saturates and aromatics cause the ageing of asphalt.
沥青热氧老化的原因主要是饱和分和芳香分的氧化，而不是胶质和沥青质的氧化。
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