A区块开采目的层为低渗透扶余油层,在300×300m反九点面积井网水驱开发条件下,区块水驱储量动用程度低,单向及不连通水驱储量超过总水驱储量的50.9%。为了改善区块开发效果,对A区块实施对角线加密调整,进一步完善油水井注采关系。区块水驱控制程度和水驱采收率分别增加5.9和6.6个百分点,取得了较好的开发效果,为低渗透油田开发调整提供了经验和依据。 Under the condition of 300 × 300m anti-9 o’clock well water flooding development, the utilization level of block waterflooding reserves is low, and the unidirectional and non-connecting waterflooding reserves exceed the total waterflooding reserves Of 50.9%. In order to improve the effect of block development, a diagonal encryption adjustment is implemented on block A to further improve the relationship between injection and production of oil and water wells. The degree of waterflooding control and waterflood recovery increased by 5.9 and 6.6 percentage points, respectively, and achieved good development results, providing experiences and basis for the development and adjustment of low permeability oilfields.