Sinopec has completed the construction of the 1 MtCO2/year Qilu-Shengli oilfield carbon capture, utilization and storage (CCUS) project. The construction of the project started in July 2021 and comprised two parts: Sinopec Qilu’s CO2 capture, which includes a 1 Mt/year liquid CO2 recovery and utilization unit (compression unit, refrigeration unit, liquefaction refining unit and supporting facilities to recover CO2 from the tail gas of coal-to-hydrogen plant with a purification rate of over 99%), and Shengli Oilfield’s CO2 displacement and storage. This phase includes the construction of 10 unattended gas injection stations in Zhenglizhuang Oilfield, to inject CO2 into the 73 wells nearby to increase crude oil fluidity and improve oil recovery; it is estimated to increase the oil production by nearly 3 Mt in the next 15 years. The Shengli oilfield project will also adopt a closed pipeline transportation of oil and gas to further enhance CO2 sequestration rate.