Maye 1 was completed in October 2019. The log data indicated 68 m oil pay in the Lower Wurhe Formation of Permian, which is one of the main reservoirs in the Mahu field.  PetroChina â Xinjiang is drilling a NFW in the Junggar Basin. Maye 1, located in the north of Mahu Sag in the Wuxia Fault belt, was spudded 1 April 2019 with a PTD of 4,950 m. The well had target in the Permian shale oil play in the Fengcheng Formation and volcanic play in the Carboniferous.   The dark mudstones and shales of the Fengchang Formation is one of the important source rock in the basin, which is deposited in lacustrine environment. Samples collected from the margin of the basin show that these dark mudstones have an average TOC content of 1.28%, a chloroform bitumen "A" value of 1,492 ppm, a total hydrocarbon content of 819 ppm, and a hydrocarbon potential S1+S2 value of 7.3 mg/g. Most of the source rocks of the Permian series are mature to post-mature with vitrinite reflectance (Ro) ranging from 0.55% to 2.0%.  Carboniferous volcanic reservoir has been found in the Kelameili field in the Junggar Basin. The field includes Dixi 14, Dixi 17, and Dixi 18 and Dixi 10 discoveries and has the main reservoir in the Carboniferous volcanic rocks. By 2017, 2.7 Tcf in place gas had been proved in the field.   Mahu field has the main reservoir in the Triassic Baikouquan formation, recently more success wells tested oil and gas in other formations, such as the Baodaowan and Sangonghe formations in the Jurassic and the Wurhe and Fengcheng formations in the Permian. Maye 1 will open new play potential in the Mahu field area.
China (Luliang Uplift (Junggar B.)) Kelameili