PetroChina â Sichuan made a breakthrough in the Sichuan Basin, Pingtan 1, a NFW, tested 23.6 MMcf/d of gas from the Permian Qixia Formation on 12 May 2020.   Pingtan 1 is located in the southwest of basin, drilled on Pingluoba structure in the south of the Longmenshan fault belt. The well was spudded on 11 December 2017, with objective in the Qixia Formation, and reached a TD of 6,866 m on 20 January 2020. During drilling the core data indicated good reservoir quality. Pingtan 1 is the first well achieved commercial gas flow in the Qixia Formation in this area.   Around Pingtan 1, several gas fields have been found, such as Pingluoba and Baimamiao, with reservoir in the Jurassic and Triassic, a few wells hit the Qixia Formation but reservoir is wet.   The Marine Qixia Carbonate reservoir is represented in the basin. Although it is present in 18 fields, but no major discovery has been found yet. For the past few years, PetroChina made gas discovery in the Qixia Formation in northeast part of the basin, such as Longtan 1, Shuangtan 1 and Shuangtan 3.   In 2017 PetroChina tested high gas rate in Longtan 1 which flowed 37 MMcf/d of gas from the Permian Qixia Formation with H2S content of 8.93 g/m3.   In 2016 PetroChina made a breakthrough in in Shuangtan 3, the well not only tested gas from the Permian Qixia Formation, but first time achieved commercial gas flow from the Devonian Guanwushan Formation, 4 MMcf/d of gas.   In 2014 PetroChina made Shuangtan 1 discovery, the well tested 30 MMcf/d of gas from the Permian Qixia Formation and 44.7 MMcf/d of gas from Maokou formations.
Pingtan-1 nfw. (PetroChina 100%) Pingluoba structure, Yanting-Daying block, S. Longmenshan fault belt in SW Sichuan Basin, drilled 11 Dec '17 â 20 Jan '20, TD 6866m, in May tested 23-6 MMcfg/d from the target Permian Qixia fm. This is the 1st commercial gas flow from the Qixia here.