Abstract Trinity reservoir refers to the normal oil, heavy oil, and bitumen distributed from bottom to top in Wuerhe oilfield affected by geological movements. Discriminating between producible oil and other hydrocarbons is critical for production planning. In this study, the NMR experimental data, chemical compositions, and geological structure of the samples are compared and analyzed. Geological movements cause an increase in oil density, a decrease in saturated hydrocarbons, and depletion of N-alkane, which finally results in shorter transverse relaxation times of the heavy oil and bitumen. The works for trinity reservoir oil characterization can be applied more reliably to reservoir evaluation and production planning.

中文翻译：

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三一油藏石油核磁共振表征

摘要 三位一体油藏是指乌尔禾油田受地质运动影响自下而上分布的正常油、稠油和沥青。区分可生产的石油和其他碳氢化合物对于生产计划至关重要。本研究对样品的核磁共振实验数据、化学成分和地质结构进行了对比分析。地质运动导致油密度增加、饱和烃减少和正烷烃消耗，最终导致重油和沥青的横向弛豫时间缩短。三位一体油藏石油表征的工作可以更可靠地应用于油藏评估和生产规划。