STUDT ON THE RESIDUAL OIL DISTRIBUTION REGULARITY BY INTEGRATED 3-D GEOLOGICAL MODELING WITH RESERVOIR NUMERICAL SIMULATION

Study on the residual oil distribution regularity is often of importance and difficulty during the middle and late period of oil field production. According to the production patterns in the M-1 area of Maling Oil Field, we make use of the technology of integrated 3-D geological modeling with reservoir numerical simulation. After the study of trap, fine layer comparison, deposition facies and flowing unit, a 3-D geological model for the M-1 area is established from Yanchang formation to Fuxian formation, which supplies an original geological model for the reservoir numerical simulation. Based on a successful history regression, the residual oil distribution is calculated with reservoir simulation. Finally, we analyze the residual oil distribution regularity combining with study of deposition facies and flowing units. As a result, the potential of the oil field and the adjusting direction for next production is determined.