Crude Oil Character Variety And Development Method Study Of Flooding Reservior In Fuyu Oilfild

Fuyu oilfield has been developing through flooding for30years and viscosity of oilfieldwas higher because of reservoir disappearing gas and effect of injecting flood, some of theseblocks crude oil viscosity was in the level of normal heavy oil. In the period of development,these blocks had the character of the lower of product and descending quickly.How tochanging the effect of these blocks, it was the the key of next period development.Through research of crude oil viscosity and pectin content, it is clearly that basiccharacter of crude oil and distributing law of Fuyu oilfield. According to analyzing varyinglaw of crude oil character and character analyse of curde oil becoming higher, it is main factorof affecting crude oil character that reservoir disappearing gas and effect of injecting. Throughanalysis of dynamic product character, it is clearly that crude oil haracter of all blocks of Fuyuoilfield.According to crude oil haracter and reservoir condition and dynamic developmentreaction, changing development manner was studied after flooding, then it is clearly thatdifferent blocks having different development manner.Goal is going to improvingdevelopment effect and increasing EOR. Test has been developing in Tan40block and Tan51block and Tan91block. steam injection test had a better effction and other driving tests hasbeen already better symptom of a trend.This research effect will have a important guidesignificance for improving EOR of heavy oil areas.