Zu 201-H1 was reported to have achieved flow rate of approximately 3.73 MMcfg/d through a 11.9mm choke from the Silurian Longmaxi Formation in mid-November 2017, having undergone fracture fluid flowback between 3 September 2017 to 4 November 2017. Zu 201-H1 was drilled to a TD of 6,038m MD on 14 March 2017 and was suspended in April 2017 for a planned 20 stage fracture stimulation programme. The 1,500m horizontal shale gas exploration well was spudded on 20 August 2016 targeting the Silurian Longmaxi Formation. The objective of Zu 201-H1 is to confirm the commerciality of the shale gas produced from the Longmaxi Formation. Zu 201, the vertical shale gas exploration well, flowed gas to surface in early 2016 following fracture stimulation. Zu 201 was spudded in early 2015 and was drilled to a TD of 4,412m (PTD 4,320m) in April 2015 having encountered 54m of shale gas within the Longmaxi Formation. The objective of the Zu 201 and Zu 201-H1 is to appraise the westerly extension of the Silurian Longmaxi Formation in the Weiyuan-Longnusi Structure that was successfully tested at the Wei 202 and Wei 203 shale gas wells. Zu 201-H1 is geographically located in Zhongqing City, Dazu County, Yongqi Town, Yuxia Village in the PetroChina lead Bishan-Hejiang Shale Gas Block in the Sichuan Basin. <P />
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