Литолого-фациальная характеристика верхнеюрских продуктивных отложений ямало-тазовской мегасинеклизы

Last years when anticline traps in West Siberian basin are almost studied, the most urgent became facies analysis of clastic sediments, which allows to predict lithological traps and optimize the development of drilled deposits. This work is an example of facial conditions recovery using core and log data of the Upper Jurassic productive deposits on one of the fields within the Yamalo-Tazovskaya megasyneclise. There are two Upper Jurassic producing layers: U1-1 and U1-2. Core data from 5 wells and well logs from 31 wells of the same field were analyzed. Based on the core data the layer U1-2 was identified as terrigenous alluvial and delta, while the layer U1-1 consists of terrigenous delta and coastal-marine deposits. Well logs data was also used to specificate the facial scheme with curve models