Aerial photo taken on Sept. 9, 2021 shows the PetroChina Daqing Petrochemical Company in Daqing, northeast China's Heilongjiang Province. China's Daqing Oilfield announced on Aug. 25 the discovery of a major shale oil field with predicted geological reserves of about 1.27 billion tonnes. Discovered in 1959, Daqing Oilfield has made a significant contribution to China's modern petroleum industry system. It also steps up efforts to improve its ecological environment in recent years. (Photo: Xinhua)
Aerial photo taken on Sept. 8, 2021 shows a demonstration zone of Daqing Oilfield in Daqing, northeast China's Heilongjiang Province. China's Daqing Oilfield announced on Aug. 25 the discovery of a major shale oil field with predicted geological reserves of about 1.27 billion tonnes. Discovered in 1959, Daqing Oilfield has made a significant contribution to China's modern petroleum industry system. It also steps up efforts to improve its ecological environment in recent years.(Photo: Xinhua)
Aerial photo shows the sunset view of Daqing Oilfield in Daqing, northeast China's Heilongjiang Province, May 24, 2021. China's Daqing Oilfield announced on Aug. 25 the discovery of a major shale oil field with predicted geological reserves of about 1.27 billion tonnes. Discovered in 1959, Daqing Oilfield has made a significant contribution to China's modern petroleum industry system. It also steps up efforts to improve its ecological environment in recent years.(Photo: Xinhua)
Aerial photo taken on May 26, 2021 shows oil storage tanks at Daqing Oilfield in Daqing, northeast China's Heilongjiang Province. China's Daqing Oilfield announced on Aug. 25 the discovery of a major shale oil field with predicted geological reserves of about 1.27 billion tonnes. Discovered in 1959, Daqing Oilfield has made a significant contribution to China's modern petroleum industry system. It also steps up efforts to improve its ecological environment in recent years.(Photo: Xinhua)