【摘要】 沈家铺油田主力产油层枣Ⅴ油层组被多条断层切割 ,被分为 5个断块 ,每个断块都具有独立的油水系统 ,油水关系复杂 ,储集层流体非均质性强 ,原油具有密度、黏度、胶质与沥青质含量、含硫量都高的“四高”特点。将薄层色谱 火焰离子检测技术(TLC FID)和岩石热解分析 (Rock Eval)相结合 ,对枣Ⅴ油层组密集取样的储集层岩心抽提物进行族组分绝对定量分析 ,研究枣Ⅴ油组储集层流体非均质性分布特征 ,并对其成因进行探讨。研究结果表明 :纵向上随深度增加 ,枣Ⅴ油层组的含油性逐渐变差 ,但原油性质逐渐变好 ,可能是岩性变化和原油充注方向不同导致的 ;横向上 ,从北东向南西 ,枣Ⅴ油层组的原油性质逐渐变好 ,密度、黏度逐渐降低 ,胶质与沥青质含量逐渐减少 ,推测可能与油气运移方向和构造位置有关。图 3表 3参 3更多还原

【Abstract】 ZaoⅤoil measures, the main production horizon in Shenjiapu oil field cut by many faults is divided into five fault blocks, each of which has its independent oil and water system. Relations between oil and water are complex and reservoir fluid heterogeneity is strong in the area. The crude oil is characterized by "four heights" in density, viscosity, resin and asphalt content, sulfur content. The distribution of ZaoⅤ oil reservoir fluid heterogeneity was analyzed by using the combination of thin layer chromatographic firing icon detect (TLC FID) and the rock evaluation (Rock Eval), and using dense samples and absolute quantity analysis for every fraction of extraction, and the cause was roughly analyzed. The result shows that oil saturation of Zao Ⅴ oil measures decreases vertically, but oil quality becomes better gradually, which is the results of lithological variation and oil fill orientation. Oil quality becomes lower, and the content of resin & asphalt decreases gradually, which is probably related to oil migration orientation and tectonic position.更多还原