2009年12月19日,中国石油长庆油田生产油气当量突破3000万吨,达到3006.06万吨,标志着我国又一个年产3000万吨级大油气田诞生。长庆油田目前已成为仅次于大庆油田的第二大油气田。长庆油田属于典型的“三低”(低渗、低压、低产)油气藏,因储层致密、开采难度大,被国际权威机构断 On December 19, 2009, the oil and gas equivalent of Changqing Oilfield of PetroChina exceeded 30 million tons to reach 30,060,600 tons, marking the birth of another 30 million-ton oil and gas field in China. Changqing Oilfield has now become the second largest oil and gas field, second only to Daqing Oilfield. Changqing Oilfield belongs to the typical “three low” (low permeability, low pressure, low yield) reservoirs. Because of the tight reservoir and difficult exploitation, Changqing Oilfield is severed by the international authority