Research Of Reservoir Description And Distribution Characteristics Of Residual Oil In Putaohua Oil Layers,DaQing X Oil Field

The X oil fields of daqing have a low permeability,fault development,in the process of waterflooding exposed owe water injection ratio is high,the oil Wells by poor effect,fast production decline.This thesis makes profound study of fine reservoir description and residual oil distribution of the X oil field Putaohua layers by using multi-disciplinary theory and techniques,which contributes to residual oil evaluation and oil recovery enhancement in future.The contradiction of the in this paper,on the basis of the research literature at home and abroad,by conducting "well-to-seismic integration,dynamic and static combination" and the structure of the 3 d geological modeling by means of careful study,the precise structure of the oil layer was carried out,488 fault lines were reintroduced at the same time.By fine reservoir facies belt,single sand layer,interpreting physical parameters in the study of reservoir heterogeneity,clarified the sand body space distribution,the study concluded that the planar surface and interlayer heterogeneity were stronger,and the in-layer heterogeneity was weaker.Through 3D geological modeling and numerical simulation,to carry out the " dynamic and static combination " well point remaining oil research,find out the remaining oil distribution characteristics and the reasons,thought that the residual oil of the water injection,the plane contradiction,and the formation of the interlayer conflict can be excavated.Through the research of potential research on the potential of dredger potential,identify 8 potential blocks of additional well,one outside enlarge block,25 reperforating wells,2 oil wells transfer to injection wells.The results of this study not only provides a method to increasing reserves and potential for low permeable oil fields but also offers new technology for exploiting efficiently west Daqing peripheral low permeability oilfield which fault development.