Changqing, Ordos basin

Largely a tight oil and gas play with low permeability and low per-well production, CNPC has over the last two decades built Changqing, in North China’s Ordos basin, into the country’s largest oil and gas producing field. Output hit a record 54.61 million tons of oil equivalent in 2018, up 2.7 percent from 2017.

In gas development, CNPC added 2,300 new gas production wells in Yulin, Sulige and Jingbian blocks in 2018, raising output by 23 million cubic meters a day.

The increased drilling boosted Changqing’s total gas output to 38 bcm in 2018, a quarter of China’s total gas output, and compared to an earlier target of 36.8 bcm.

CNPC also stepped up drilling shallower wells at Changqing, where it struck in 2018 industrial oil flows at 184 wells and added 51.7 million tons of proven reserve.