摘要
相分析是岩性油气藏勘探和开发的一项有效技术。对富县探区多口探井和开发井进行了曲线形态和测井相分析,并进行了沉积解释。通过对研究区测井进行单井分析,得出研究区主要发育三角洲平原、前三角洲和滨浅湖等沉积相,总结出研究区从长8到长6段,经历了三角洲前缘、滨浅湖、湖泊相、三角洲平原和三角洲前缘等沉积演化过程及其沉积规律,并指出分支河道和分流水道以及河口坝、远砂坝等沉积微相是主要的油气储集层,刻画出了油气富集区展布和规律。
Facies analysis is an effective approach in lithologic reservoir exploration and development.In this paper,the author analyzed the shape of log curves and log facies in several exploration wells and development wells in Fuxian exploration area,and tied the results to different sedimentary facies.Through analysis of log facies and sedimentary facies,we concluded that there mainly developed deltaic plain facies,prodelta facies,and shore-shallow lake facies in the study area.From Chang 8 to Chang 6,this area experienced a series of sedimentary evolution,including deltaic front,littoral and shallow lake,lake,deltaic plain,as well as deltaic front.Distributary channel,underwater distributary channel,mouth bar,and distal bar sand are the main hydrocarbon enrichment zone.The distributions of hydrocarbon enrichment zones are documented.
出处
《勘探地球物理进展》
2010年第1期58-63,共6页
Progress in Exploration Geophysics
关键词
岩性油气藏
测井曲线形态
测井相
沉积演化
油气富集区
lithologic hydrocarbon reservoir
shape of log curve
log facies
sedimentary evolution
hydrocarbon enrichment zone
