| Currently,as the domestic oilfield production for years, oil productionare dropping fastand moisture content is higher in the late period of oilfield development. To extractoiland tokeep oliproduction stable is harder and harder.How to obtain a higher economic benefit is themain problem of oil field exploitation.Water injection profile control technology is an important measure of solving thecontradiction between the inner layer. And the depth profile control technology is a goodsolution to the inner flow and cross flow problems, it is one of the main means to realize thestable output of old oil fields.Aimming at the quick decline of oil production and the rise of moisture content of blockS103, this paper researches the preferred scheme of the foam profile control and injection.The main results as follows:The comprehensive mining feature histogram and block reservoir property curve aredrawed, and the current existing problems of water injection conditions is analyzed.According to the geological data such as well data, hierarchical data and attribute data,using the Petrel software to establish the model of block S103which based on thestochasticmodeling in this paper.Using the CMG software to establish the model of numerical simulation of block S103polymer foam flooding.According to production characters of the oil well and reservoir P of Block S103, theconnection has been confirmed between high water cut oil well of the researched block andwater wells, the water wells which adpot the profile control measures has been confirmed.The high water cut well group is selected to design a number of groups of foam profilecontrol scheme, select the reasonable parameters of injection method, injection timing,injection cycle and injection rate.Finally, based on the foam profile control agent formula system and injection parameterscomprehensive adjustment of development plan of block S103is made, and developmentindex prediction is proceeded, the development effect is predicted. |
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