For producing these reserves effectively,an CO2 immiscible displacement experiment is developed.

Injection of CO2 in laboratory experiment obviously expands crude oil and reduces viscosity,hence is qualified for CO2 miscible flooding.

Minimum miscible pressure in CO2 flooding is an important basis to determine whether the CO2 miscible flooding can be used in reservoirs.

CO2 injection miscible flooding is an important method for enhanced oil recovery(EOR).

Experimental study of optimized steam injection parameters for immiscible displacement in Wenxi3 Block;

Experiment research of water alternating gas immiscible displacement EOR technology in fractured low permeability reservoir

As to low permeability oilfield, Tuha oilfield systematically tackles the key problem of the field applied techniques on enhanced oil recovery by gas injection, sets up the field test base of gas injection miscible displacement in Pubei oilfield and the pilot area of gas injection immiscible displacement in block Wen 5, good effect has been taken.

Microcosmic experiment research on CO_2 immiscible drive;

The CO_2 immiscible drive mechanism,injection mode and injection volume were studied by using the high-temperature high-pressure experimental system,and the recovery efficiency,injection pressure,gas consumption and CO_2 recycling usage were analyzed.