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首页> 外文期刊>Journal of Petroleum Exploration and Production Technology >Origin and classification of the composite sand bodies of the delta front in K1q4 of the Quantou Formation in the central region of the Fuyu oil field
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Origin and classification of the composite sand bodies of the delta front in K1q4 of the Quantou Formation in the central region of the Fuyu oil field

机译：扶余油田中部泉头组K1q4三角洲前缘复合砂体的成因与分类。

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This study discusses the formation mechanisms of the delta front reservoir of K1q4 of the Quantou Formation in the central region of the Fuyu oil field and summarizes the types of deposition based on an analysis of facies markers and a comprehensive study of the sedimentary microfacies using well cores, logs, and geologic data. The results show that K1q4 of the Quantou Formation mainly formed through shallow-water sedimentation on a delta front and includes five sedimentary microfacies: underwater distributary channels, underwater natural levees, underwater diversion bays, river mouth bars, and distal bars. Due to the effects of allocyclicity, the composite sand body evolved by vertical overlaying, whereas because of the effects of autocyclicity, the composite sand body evolved by horizontal transport. Three main types of composite sand bodies are located in the study area, including composite underwater distributary channels without levees, composite underwater distributary channels with natural levees, and composites of underwater river mouth bars with distributary channels.
机译：本研究探讨了扶余油田中部泉头组K1q4三角洲前缘储层的形成机理，并基于相标志分析和利用井心对沉积微相的综合研究，总结了沉积类型。 ，日志和地质数据。结果表明，泉头组的K1q4主要是通过三角洲前缘的浅水沉积形成的，包括五个沉积微相：水下分布河道，水下天然堤坝，水下引水湾，河口坝和远坝。由于异质环化的影响，复合砂体通过垂直覆盖而演化，而由于自旋性的影响，复合砂体通过水平传输而演化。研究区域内有三种主要类型的复合砂体，包括无堤的复合水下分流河道，带天然堤的复合水下分流河道和具有分配河道的水下河口坝复合物。

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