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长庆铁边城油田属于特低渗透油藏,按照最佳配置裂缝系统、井网系统的原则,提出3种井网形式:菱形反九点、不等距线状注水和反七点井网,井排距分别为450m×150m,500m×100m,550m×150m。运用数值模拟方法,通过对比不同井网整体压裂后采出程度与含水关系以及经济评价,最终推荐适合长庆铁边城油田的井网形式为不等距线状注水,井距450m,排距150m。
The Changbian Tiebian City oilfield belongs to the ultra-low permeability reservoir. According to the principle of optimally configuring the fracture system and well pattern, three patterns of well patterns are proposed: rhombus anti-nine o’clock, Well spacing were 450m × 150m, 500m × 100m, 550m × 150m. By using the numerical simulation method, the well pattern of Changbian Tiebocheng Oilfield is finally recommended as a non-equidistant linear water injection by comparing the recovery rate of the different well patterns after fracturing with the water content and economic evaluation. The well spacing is 450m, 150m.