Fine Reservoir Description On PⅠ1~3Oil-Bearing Formation Group In The Center Of Xing6Blocks Of Daqing Oilifeld

Since Xing6blocks in Daqing oilfield were put into production for40years, theoutput decrease more quickly, production rate lowered gradually. The inhomogeneityof PI oil group is worse in the region of interest because of deposit characters gaveinfluence on plane and portrait. The research of PI oil group inhomogeneity in xing6block in Daqing oil field by the method that macroscopic and tiny view of adoptioncombine together, begin with oil pool fine geologic research, make use of themethodthat moving and static state combined together, many courses arecomprehensive.research deposit micro facies and the distribution characters ofremaining oil from several aspects. These can provide the basis of science for finedevelopment and improving production rate．In order to readjust the development of oilfield in better way, taking PⅠ1～3oil-bearing layer of X6block as an example, fine reservoir description was carriedout; Under the regional sedimentary and geological background, comprehensiveapplying "cycliccorrelation, fractional control, different treatment to differentsedimentary fades belt" to zone correlation and subdividing sedimentation unit.According to regional sedimentary background,in the thesis the strata werere-correlated and divided using678well data,2sand sets,3layers and8sedimentary units was divided in turn and sedimentary subfacies map of each unitwas respectively compiled. The thesis carried out supplementary study formicro-physical property, appraised study of removing reservoir heterogeneity.At thesame time to establish the corresponding3D geological model to simulate theunderground reservoir condition,which laid the foundation for adjusting and tappingthe potentials in these blocks.