The Wei 11 gas storage facility built by China Petroleum & Chemical Corporation's (Sinopec) in its Zhongyuan Oilfield region successfully completed its first gas injection on October 18, marking the beginning of official operation of the largest underground natural gas storage cluster in north China.

The gas storage facility has a capacity of 10.03 billion cubic meters and will become a strong resource guarantee for gas storage and peak shaving from winter through spring in north China and the Yellow River Basin as well as ensuring a stable gas supply.

Sinopec's Zhongyuan gas storage cluster now has three blocks, the Wen 23, Wen 96 and Wei 11. The Wei 11 gas storage facility that's now up and running is a key component of establishing the natural gas storage cluster reaching 10 billion cubic meters. The block is located at the junction of Henan and Shandong provinces and has a designed capacity of 1.009 billion cubic meters. The largest daily peak shaving capacity of the Wei 11 gas storage facility is 5 million cubic meters, which can meet the gas demands of 10 million households every day.

In addition, Sinopec will have its Wen 13 West and Bai 9 gas storage facilities in the Zhongyuan Oilfield region up and running by the end of this year after completing construction and gas injection, adding an estimated 1.116 billion cubic meters of gas storage capacity further enhancing the company's gas storage and peak shaving capacities.