document: PetroChina-Sichuan completed a new field wildcat Wutan 1 in the eastern section of the Sichuan Basin in end-February 2018. The well had multiple objectives, primarily targeting the Jurassic clastic and Pre-Cambrian carbonate formations, to better understand the basin evolution and new play fairways.  It encountered shows in the Permian Maokou carbonate Formation. The well reached a TD of 8,060 m with bottom-hole in the Pre-Cambrian Nantuo Formation. Ultra-deep pressure and ultra-high temperature were experienced at this unit. In the shallower section, high pressure with high H2S content was seen in the Permian carbonate Formation during drilling.Â  The well likewise intersected high temperature at the Cambrian Salt Formation. PetroChina plans to produce 30 Bcm by 2020 and 70 Bcm by 2035 in the Sichuan Basin. The company has been exploring the basin for more than 60 years and has proven 92 Tcf of gas in place by 2017. PetroChina produced 21 Bcm in 2017.  Currently, the main reservoir in the eastern Sichuan Basin is the Carboniferous Formation found in the Datianchi Complex fields such as Wubaiti (Datianchi Complex). PetroChina is looking for a new gas play to further explore the upside in the area.
summary: China (Sichuan B.) ? op. by PETCHIN SC (100.0%) in Wubaiti block