下寺湾油田桥镇区长8致密油藏主控因素分析

Main Controlling Factors of Chang 8 Tight Oil Reservoir in Qiaozhen Area,Xiasiwan Oilfield

下寺湾油田桥镇区长8油藏属于典型的致密油藏。通过分析认为,长8沉积期三角洲前缘砂体控制致密油藏规模,优质烃源岩的分布控制致密油分布范围,有效的储集空间控制石油储集量,良好源储配置控制着致密油藏的富集程度,多重因素的有利组合是桥镇区长8致密油藏的主控因素。

Chang-8 reservoir in Qiaozhen area of XiaSiwan oilfield is a typical tight oil.The analysis shows that delta front sand body,high-quality source rock,effective reservoir space and good source and reservoir allocation control the enrichment degree of tight reservoir in Chang-8 sedimentary period.The favorable combination of multiple factors is the main controlling factor of Chang-8 tight reservoir in Qiaozhen area.