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Reservoir description is the emergence in the late 1970s , eighties and gradually developed the perfect one for the exploration and development of oil and gas reservoirs to prepare a comprehensive evaluation of new technologies. Practice shows that the exploration and development , exploration and development work key to success lies in the level of awareness of the reservoir . China 's oil and gas reservoirs is very complex, especially in the latter part of the reservoir development , most of the high water has entered the stage of production decline . As heterogeneity characteristic differences, barriers , sensitivity and changes in randomness , adding well network imperfections , resulting in water to promote vertical and horizontal inhomogeneity and on the degree of utilization of oil differences, fragmentation of remaining oil distribution . Meanwhile , in the long term flooded reservoirs , reservoir and fluid properties to a series of physical, chemical and mechanical changes. These factors make the various aspects of reservoir heterogeneity is more prominent, and therefore to be more precise, accurate, quantitative reveal the distribution of residual oil , it must be the reservoir fine description . This article from the reservoir to start fine contrast , micro- structural study on reservoir technology , subdivision microfacies technology , mobile cell research techniques , reservoir fluid properties and spatial distribution of research techniques , numerical simulation techniques carried out a detailed analysis of summary Dagang Oilfield proposed to adapt the comprehensive application of reservoir characterization technology for further search of remaining oil distribution provides technical assurance.
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