The Application Of Well-to-seismic Integration Technique In Reservoir Prediction Of West In Daqing Oilfield Bei Er Dong Area

Daqing oilfield has entered development stage of high water cut stage after years of development,the remaining oil distribution has become the main object of study. Due to the influence of various factors,the remaining oil distribution is scattered. Thus the difficulty of the prediction is increased,the exploring difficulty also will increase at the same time.The reservoir is an important factor to control the distribution of remaining oil, so we need to carry on comprehensive research and forecast it.The research is aimed at third production plant of daqing oilfield “The application of well-to-seismic integration technique in Reservoir Prediction of BeiEr Dong Area”project, the study area is located in the north of BeiErDong Area, about 6.05 km2, the structure is flat, dip is 20-30, the development of fault is less,the area has three sets in reservoir, they are SA, PU and Gao. The purpose layer is SII,SIII oil group. In the study, dense well pattern data is developed based on the high resolution sequence stratigraphic framework, the sequence stratigraphic characteristics of the evolution of clear.The use of high resolution seismic inversion technology of Jason software, the SII, SIII oil groupcan can be predicted by well-to-seismic integration technique. The inversion results and logging curves in sedimentary units of sedimentary microfacies research played an important role incharacterization;using of “seismicinversion, well facies control” method, it completed the preliminary study that purpose layer in the studied area 28 depositional time unit of planar sedimentary microfacies and a preliminary study on the spatial distribution of single sand bodies. Based on the results of this, it is combining with the seismic inversion results to predict the 28 sedimentary units of single sand bodyplane distribution, to establish a well seismic facies model and related chart, to forme a set of genetic significance of well-to-seismic integration deposition method, and to establish frontal phase 7 types of reservoir sand body causes and sedimentation model.By sedimentary facies study of reservoir sedimentary unit, it depicts the channel sand body distribution between wells of, the SII, SIII oil group sedimentary units, to make the fine anatomy of reservoirs is more objective and accurate, the distribution law of remaining oil description.It has a guiding significance for the development of oilfield.