摘要
为研究柴窝堡凹陷红雁池组储集层发育类型及油气储层分布特征,采用岩矿分析、物性分析、铸体薄片、荧光薄片、扫描电镜和压汞资料,对红雁池组储层的岩石学特征、物性、孔隙类型及孔隙结构特征进行研究,深入分析储层的主要控制因素。结果表明研究区红雁池组储层岩石类型主要为砾岩和岩屑砂岩,具成分成熟度和结构成熟度均低的特点,属超低孔超低渗储层;次生溶孔和裂缝是红雁池组主要储集空间类型;喉道类型以片状、弯片状为主。研究区储层物性受控于沉积因素、成岩因素和裂缝。沉积微相、岩石粒度、岩石成分是影响红雁池组储集层物性的主要因素。溶蚀作用改善储层物性,压实作用破坏储层物性,胶结作用对储层物性具有双重影响。裂缝发育增加了储层的有效储集空间。
For the study of Chaiwopu sag Hongyanchi formation reservoir types and hydrocarbon reservoir distribution,petrological characteristic,property,pore types and pore structure features of Hongyanchi formation are analyzed based on rock mineral analysis,physical property analysis,thin section,cast thin section,fluorescence thin section,scanning electron microscope and mercury penetratration data. And the main controlling factos for reservoir were analyzed. The result show that the lithology characteristics in the area are mainly debris sandstone and conglomerate,which have the characteristics of low compositional maturity and low texture maturity,belonging to ultra-low porosity and super low permeability reservoir. Secondary pores and cracks are the main reservoir space types in Hongyanchi formation. The main throat types are sheet and bent sheet sheet bending. The physical properties were most affected by sedimentary,diagenesis and crack. The mainly factors of Hongyanchi formation reservoir are sedimentary microfacies,rock granularity,and rock composition. The dissolution is the main factor for improving the physical properties of reservoir,the compaction made physical properties obviously low and the cementation has dual effects on the reservoir in the study area. Fracture increased the effective reservoir space of reservoir.
出处
《西安科技大学学报》
CAS
北大核心
2016年第3期400-407,共8页
Journal of Xi’an University of Science and Technology
基金
中石化胜利油田分公司"柴窝堡凹陷二叠系沉积演化及成藏条件研究"(YKK1509)资助
关键词
主控因素
沉积因素
成岩作用
红雁池组
柴窝堡凹陷
main controlling factors
deposition factor
diagenesis
Hongyanchi formation
Chaiwopu sag
