Study On Reservoir Configuration Of NmII Oil Reservoir In Block 34-1, Bozhong, Bohai Oilfield

According to the data of coring,logging and performance of wells in Nm?Reservior of BZ34-1 Oilfield,combined with isochronous stratigrafic correlation andsedimentray facies study,reservior geology,sequence stratigraphy,sedimentray rock study and prtroleum geology and other aspects of knowledge of delta front reseroir,I have analyzed characteristic of delta facies,meanwhile research static and dynamic informations have been used to study seservior architecture of delta-front and distribution modes of remaining oil,in this way the research can guid producting remaining oil of delta-front in the middle-late period of oil field development.By using tracking sign of the contrast layer,logging response identification,connecting well section and section closing method the area have been fine stratigraphic divided;the model prediction and sandbody classification control architecture research method have been used to subdivd sedimentary framework in longitude and sedimentary facies in vertical direction,The single sandbody reservoir configuration is characterized by four factors:subdivision of sedimentary microfacies,configuration grade division and single sand body in composite sand body.In the basis of reservoir architecture studing the fourth level architecture interface geological bady can be defined into two kinds of single configuration init:single underwater distributary channle and interdistributary bay,and the single channel sand body vertical extension were calculated,the relationshipbetween the different architecture units were explained,two kinds of interpretations of the syntagmatic relation and three kinds of vertical combination,in the reservoir within the scope of a summary of the five kind of remaining oil reservoir configuration control patterns.