A technician examines equipment of a shale gas platform of China Petrochemical Corporation in southwest China's Chongqing Municipality, Feb. 22, 2020. A total of 14 operation points of the shale gas platform have resumed production, boosting the daily shale gas output from 2.11 million cubic meters to 2.53 million cubic meters that secured the downstream companies' operation needs amid the fight against the novel coronavirus outbreak. (Xinhua/Liu Chan)

A technician examines equipment of a shale gas platform of China Petrochemical Corporation in southwest China's Chongqing Municipality, Feb. 22, 2020. A total of 14 operation points of the shale gas platform have resumed production, boosting the daily shale gas output from 2.11 million cubic meters to 2.53 million cubic meters that secured the downstream companies' operation needs amid the fight against the novel coronavirus outbreak. (Xinhua/Liu Chan)

A technician examines equipment of a shale gas platform of China Petrochemical Corporation in southwest China's Chongqing Municipality, Feb. 22, 2020. A total of 14 operation points of the shale gas platform have resumed production, boosting the daily shale gas output from 2.11 million cubic meters to 2.53 million cubic meters that secured the downstream companies' operation needs amid the fight against the novel coronavirus outbreak. (Xinhua/Liu Chan)

A staff member checks a technician's body temperature at a shale gas platform of China Petrochemical Corporation in southwest China's Chongqing Municipality, Feb. 22, 2020. A total of 14 operation points of the shale gas platform have resumed production, boosting the daily shale gas output from 2.11 million cubic meters to 2.53 million cubic meters that secured the downstream companies' operation needs amid the fight against the novel coronavirus outbreak. (Xinhua/Liu Chan)

Aerial photo taken on Feb. 22, 2020 shows a shale gas platform of China Petrochemical Corporation in southwest China's Chongqing Municipality. A total of 14 operation points of the shale gas platform have resumed production, boosting the daily shale gas output from 2.11 million cubic meters to 2.53 million cubic meters that secured the downstream companies' operation needs amid the fight against the novel coronavirus outbreak. (Xinhua/Liu Chan)

A technician examines equipment of a shale gas platform of China Petrochemical Corporation in southwest China's Chongqing Municipality, Feb. 22, 2020. A total of 14 operation points of the shale gas platform have resumed production, boosting the daily shale gas output from 2.11 million cubic meters to 2.53 million cubic meters that secured the downstream companies' operation needs amid the fight against the novel coronavirus outbreak. (Xinhua/Liu Chan)