Daqing Oilfield's "tertiary oil recovery" output exceeded 10 million tons for 20 consecutive years

PetroChina Daqing Oilfield announced on the 8th that as of that day, the annual output of Daqing Oilfield's "tertiary oil recovery" exceeded 10 million tons, and the output exceeded 10 million tons for 20 consecutive years.

Usually, the self-sprayed oil produced by the energy of the oil layer is called "primary oil recovery", and the injection of water into the oil layer to supplement energy is called "secondary oil recovery", and the chemical substance is injected to improve the interaction of oil, gas, water and rocks.

Tertiary oil recovery technology is an important technical means for the old oilfields to greatly improve crude oil recovery

After continuous research and research, Daqing Oilfield has established two tertiary oil recovery technology series, polymer flooding and ASP flooding, and has always maintained its leading position in the world

In the process of innovating tertiary oil recovery technology, Daqing Oilfield has built an open national key laboratory for enhanced oil recovery, a national energy continental sandstone old oilfield continuous development center, a CNPC tertiary oil recovery pilot test base, and Heilongjiang Province to improve crude oil recovery.

At present, the core patents and proprietary technologies of tertiary oil recovery are not only applied in domestic oilfields, but also successfully provided technical services to Russia, Kazakhstan, Indonesia, Oman and other countries