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冷东－雷家地区沙一、二段及沙三段原油以重质稠油为主。重质稠油研究在建立本区流体性质分布及地球化学模型过程中占重要的地位。本文应用原油族组份、气相色谱、稳定碳同位素、饱和烃和芳烃色质等多项分析化验资料，综合研究了本区重质稠油的地球化学特征，并结合本区区域地质及地球化学条件讨论了重质稠油的油源条件及成因。从而为本区稠油油藏的勘探开发提供了重要的地质依据。
Cold East - Lei home area sand, second and third sections of crude oil heavy heavy oil-based. Heavy heavy oil research plays an important role in the establishment of fluid properties distribution and geochemical model in this area. In this paper, geochemical characteristics of heavy heavy oil in this area are comprehensively studied by using a number of analytical and experimental data such as crude oil components, gas chromatography, stable carbon isotopes, saturated hydrocarbons and aromatics. Combined with the regional geology and geochemistry Conditions discussed the heavy heavy oil source conditions and causes. Thus providing an important geological basis for the exploration and development of heavy oil reservoirs in this area.