Research On Remaining Oil Distribution And Adjustment Of Development Mode In Jin 612 Block

The study on remaining oil distribution rule is not only a worldwide problem but also a frontier task in fields of geology, physics of the Earth, reservoir engineering and so on. It's the base of comprehensively adjusting oil field, improving current status of exploitation and enhancing oil recovery, which is the important criterion for reservoir engineers to make a strategic decision. How to characterize the distribution of remaining oil and enhance oil recovery is the main purpose of the current exploration and exploitation activities.This paper takes Dalinghe reservoir for jin 612 block in Liaohe oilfield for the study area. The block has been the use of natural energy development, making blocks falling within the formation pressure, gas oil ratio increasing significantly, oil degassing seriously, crude oil viscosity rising. Edge-bottom water invasion caused serious flooding wells, and well condition become worse year after year, which seriously affect development effect.In order to exploit the remaining oil and gas, it is necessary to research the remaining oil distribution, development methods and injection-production scheme. This article fully use the reservoir geological, well logging, well testing and production data such as dynamic in reservoir description of remaining oil distributionand the research work. By utilizing the oil field geology, well logging, testing and production performance, etc, deeply research reservoir description and remaining oil distribution. On the basis of accurate geological model of the reservoir, using of numerical reservoir simulation reservoir full application of the static and dynamic data of production, by history matching, get the remaining oil distribution more accurate description. Combination of laboratory experiments and field practice, choose high temperature and high drying degree of steam flooding within the block, use steam soaking in local low-flooding area and design a reasonable injection-production program to further enhance the overall development effect of block.