【摘要】 根据钻井、测井、地震资料分析,结合野外露头的观察,将准噶尔盆地东部吉木萨尔凹陷梧桐沟组沉积相划分为扇三角洲、三角洲、河流、湖泊4种类型,并探讨了各亚相、微相的沉积特征及沉积相的空间展布与梧桐沟组的沉积体系演化。由沉积特征将梧桐沟组分为上下两段,上段区域主要发育滨浅湖相沉积,下段区域以扇三角洲、三角洲相沉积为主,具有良好的生、储、盖组合能力,是油气勘探的重要领域之一。更多还原

【Abstract】 In this study,based on an analysis on drilling,well-logging and seismic data and outcrop observation,sedimentary facies of Permian Wutonggou Formation,East Jumusaer Depression,can be subdivided into four types of fan delta,delta,fluviala nd lacustrine.And the sedimentary characteristics of differents ubfacies and microfacies,the spatial distribution of sedimentaryf acies and the sedimentary system of Wutonggou Formation ares tudied.This formation can be divided into upper and lower sections in terms of sedimentary characteristics:coastal shallow lacustrine facies develops at the upper whereas both fan delta and deltaf acies develop at the lower,respectively.In the lower,there is ab etter source-reservoir-caprock assembly.As a result,it is an important exploration domain.更多还原