A Study On The Technology Of Fine Reservoir Description In CO₂ Experimental Area Of Fang 48 And Shu 101 Block

In recent years, as the effective use to achieve peripheral oilfield in extra low permeability reservoir, explore new ideas, in Yushulin Oil field, Song Fang Tun oilfield CO2 oil displacement test were carried out respectively, and have achieved initial results. But Fang 48 block CO2 oil displacement experiment achieved effect at the same time,but in the experimental zone for the development process and found the problem CO2 flooding gas channelingand so on, in order to further close combination with the actual production of oil, carried out Fang 48 fault block CO2 flooding reservoir fine description to expand research in Fuyu test area.To speed up the pace of oilfield development, the realization of economic, ordered target of oilfield development,supporting the formation of technology development of low permeability reservoir, by subdividing sedimentary unitsas the basis, combined with the regional sedimentary environment, studies the causes of sand in different sedimentary environments of the type, distribution characteristics, structure characteristics and plane combinationform; combined with drilling, coring, testing oil production test and well log data, a detailed study of the Fuyu reservoir four property relationship established research block physical parameters and oil saturationinterpretation model; also carried out research can petrophysical property of sandstone reservoir standardinspiratory preliminary exploration; according to the characteristics of low permeability oilfield, analyzes the physical property of reservoir, heterogeneity and sensitivity.The fine reservoir description of Fang 48 block, deepening the geological knowledge, the implementation of blockheterogeneous characteristics and main controlling factors, predicted the development regularity of reservoir fractures, the expected research results on oil and orderly economic development can play a positive role in guiding.