下寺湾油田泉54井区长2油藏储层特征及成藏主控因素研究

在系统收集和整理下寺湾泉54区块长2储层资料的基础上,利用大量的分析化验资料,通过对储层沉积特征、岩石学特征、物性特征、孔喉特征、生储盖特征、油藏特征及成藏主控因素的分析,表明该区块属于三角洲前缘亚相沉积,储层具低孔特低渗特点；具有良好的生储盖组合,油气成藏主要受沉积微相和鼻隆构造或构造相对高部位控制.

Reservoir Characteristics and Accumulation Control Factors of Chang 2 Reservoir in Quan54 Well Area in Xiasiwan Oil Field

Based on information of Quan 54 Chang 2 reservoir in Xiasiwan oilfield by collectling and arrangement systemly,using a large amount of analytical data,sedimentary characteristics,petrology,physical characteristics,pore structure,source,reservoir,cap rock,reservoir type,accumulation major controlling factors were analyzed.The results show that the reservoir belongs to the delta front sedimentary subfacies,has characteristics of low porosity,low and ultra-low permeability,has good soure-reservior-roof oil gas accumulation,the hydrocarbon accumulation was mainly controlled by sedimentary microfacies and nasal structure.