A staff member inspects at the Shuangtaizi gas storage area of PetroChina Liaohe Oilfield gas storage group in Panjin, northeast China's Liaoning Province, June 15, 2022. The homebred gas injection system was successfully put into operation here in late May, and the overall daily gas injection capacity of Liaohe gas storage group increased from 14 million cubic meters to 30 million cubic meters. (Xinhua/Pan Yulong)
A staff member inspects at the Shuangtaizi gas storage area of PetroChina Liaohe Oilfield gas storage group in Panjin, northeast China's Liaoning Province, June 15, 2022. The homebred gas injection system was successfully put into operation here in late May, and the overall daily gas injection capacity of Liaohe gas storage group increased from 14 million cubic meters to 30 million cubic meters. (Xinhua/Pan Yulong)
Staff member work at the central control room of Shuangtaizi gas storage area of PetroChina Liaohe Oilfield gas storage group in Panjin, northeast China's Liaoning Province, June 15, 2022. The homebred gas injection system was successfully put into operation here in late May, and the overall daily gas injection capacity of Liaohe gas storage group increased from 14 million cubic meters to 30 million cubic meters. (Xinhua/Pan Yulong)
Aerial photo taken on June 15, 2022 shows the PetroChina Liaohe Oilfield gas storage group in Panjin, northeast China's Liaoning Province. The homebred gas injection system was successfully put into operation here in late May, and the overall daily gas injection capacity of Liaohe gas storage group increased from 14 million cubic meters to 30 million cubic meters. (Xinhua/Pan Yulong)
A staff member inspects at the Shuangtaizi gas storage area of PetroChina Liaohe Oilfield gas storage group in Panjin, northeast China's Liaoning Province, June 15, 2022. The homebred gas injection system was successfully put into operation here in late May, and the overall daily gas injection capacity of Liaohe gas storage group increased from 14 million cubic meters to 30 million cubic meters. (Xinhua/Pan Yulong)
Aerial photo taken on June 15, 2022 shows the PetroChina Liaohe Oilfield gas storage group in Panjin, northeast China's Liaoning Province. The homebred gas injection system was successfully put into operation here in late May, and the overall daily gas injection capacity of Liaohe gas storage group increased from 14 million cubic meters to 30 million cubic meters. (Xinhua/Pan Yulong)
A staff member inspects at the Shuangtaizi gas storage area of PetroChina Liaohe Oilfield gas storage group in Panjin, northeast China's Liaoning Province, June 15, 2022. The homebred gas injection system was successfully put into operation here in late May, and the overall daily gas injection capacity of Liaohe gas storage group increased from 14 million cubic meters to 30 million cubic meters. (Xinhua/Pan Yulong)
