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通过分析若参1井岩心、录井、测井资料,结合新的地震资料解释成果,对塔东南坳陷侏罗系各组沉积特征及其沉积相展布进行了详细研究,并探讨了沉积相变化与构造演化之间的关系。认为若羌凹陷早-中侏罗世是断陷盆地,早侏罗世发育冲积扇和辫状河三角洲,中侏罗世以辫状河三角洲和湖泊沉积为主;晚侏罗世演变为坳陷盆地,以河流沉积为主。若羌构造带和民南构造带是较有利的油气勘探区带。
By analyzing the core, logging and logging data of Well Shen 1, combined with the results of new interpretation of seismic data, the sedimentary facies and sedimentary facies distribution of each Jurassic series in the southeast depression of Tarim Basin have been studied in detail. The relationship between phase change and tectonic evolution. The results show that the Early Jurassic-Middle Jurassic faulting in the Ruoqiang depression is characterized by alluvial fan and braided delta in the Early Jurassic, predominant braided river delta and lake in the Middle Jurassic, and Late Jurassic as a depression Subsidence basin, mainly river sediments. The Ruoqiang tectonic belt and Minnan tectonic belt are the favorable oil and gas exploration zones.