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宝浪油田宝北区块储层属于典型的低孔低渗而且伴有强烈的非均质性,前期投入注水开发时没有充分发挥储层的产油能力,产量递减速度加快。流动单元是评价储层质量及开发效果的强有力手段。鉴于宝浪油田流动单元方面的研究已有一定的基础,油田开发调整一方面需要在新井布置上尽量符合流动单元的空间分布,另一方面需要努力探索不同流动单元最优组合开采的可能性。本文在本区流动单元研究的基础上,利用数值模拟方法对不同的流动单元组合开采方式进行简化模拟,通过分析注入孔隙体积倍数、含水率、单位孔隙体积采油速度、采出程度之间的关系,确定本区流动单元最优开采组合方式为流动单元B与流动单元C组合开采,流动单元D单独开采。这一结果将对油田经济高效开发具有重要的现实意义。
The reservoir of Baobei Block in Baolang Oilfield belongs to the typical low-porosity and low-permeability reservoir with strong heterogeneity. When the pre-injection waterflooding was carried out, the oil production capacity of the reservoir has not been brought into full play and the rate of decline of output has been accelerated. Flow cell is a powerful means to evaluate reservoir quality and development effectiveness. In view of the existing research on flow units in Baolang oilfield, the adjustment of oilfields needs to be as close to the spatial distribution of flow cells as possible on the one hand, and to explore the possibility of optimal combination mining of different flow cells on the other hand. Based on the study of the flow cell in this area, the numerical simulation method is used to simulate the different flow cell combination mining methods. By analyzing the relationship between the volume fraction of injected pores, the water cut, the recovery rate per unit pore volume, , To determine the optimal combination of flow cell unit mining method for the combination of flow unit B and flow unit C mining, flow unit D mining alone. This result will be of great practical significance to the economic and efficient development of oilfields.