Staff members work at Kela-2 gas field of the Tarim Oilfield in Aksu, northwest China's Xinjiang Uygur Autonomous Region, July 8, 2017. By July 4, the total production of natural gas of Kela-2 gas field has exceeded 100 billion cubic meters. Kela-2 gas field, a major supplier to the West-East gas pipeline, boasts deposits of 284 billion cubic meters of gas. (Xinhua/Shen Hong)
