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为了提高油藏开发效果,根据大路沟二区油藏的渗流特征,采用岩性物性方法划分了流动单元,并且用判别分析法、微观渗流实验法、生产动态法、井间示踪剂法、数值模拟法进行了合理性验证。研究区共分为A,B,C和D共4类流动单元,不同流动单元分布的相位不同,具有不同物性和微观渗流特征。综合验证结果表明,研究区的产能特征、储层吸水状况及见水见效特征和剩余油分布规律,与各流动单元的物性特征对应较好,表明所划分的流动单元是合理的。B类和C类流动单元及几类流动单元结合的区域为剩余油富集区,应作为调整挖潜的重点;可以根据流动单元的水驱优先顺序组合,决定注水调配原则。
In order to improve the effect of reservoir development, according to the seepage characteristics of the reservoir in the second area of Daluogou reservoir, the lithologic physical property method is used to divide the flow units. And by means of discriminant analysis, micro seepage experiment, production dynamic method, The numerical simulation method is verified rationally. The study area is divided into four types A, B, C and D, and the distribution of different flow units is different in phase with different physical properties and microscopic seepage characteristics. The comprehensive verification results show that the productivity characteristics, reservoir water absorption, water seepage efficiency and remaining oil distribution of the study area correspond well with the physical characteristics of each flow unit, indicating that the flow unit is reasonable. The combination of B and C flow cells and several types of flow cells is the remaining oil-rich area, which should be the focus of adjustment and tapping potential. The principle of waterflooding can be decided according to the priority of water flow combination of flow cells.