The Feasibility Of Chemacial Displacement Of Second Class Reservoir And Optimization Of The Displacement Method

The question of energy is one of the most important question of our world. Petroleum isone of most important source of the world, that was called industry blood and is important ineconomical development and living condition improvement. It is a nonrenewable resourcea,the OOIP of petroleum is limited. With the further development of oil field exploration, thenew recource of petroleul is hardly to find. So, to improve EOR of oil field is very importantin now days.Polymer flooding was began in1996in PI lays of Daqing oil field. Now most of thiskind of reservoir has been developed. In SABEI development eare, the OOIP of second classreservoir is about1.8×108t. If it can enhance oil recovery18%, then we can predict that usingchemical flooding in second class reservoir, it can enhance OOIP3240.0×104t.Now, the most important technique of chemical flooding used in second class reservoir isASP flooding, but as we know, ASP flooding has serious scal in production device and thedispose of production liquid is very difficult. So it is very important to research other EORtechnique of second class reservoir and it is very important to test the Adaptability of thistechnique.