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A区块大部分主力沉积单元包含两个次级沉积旋回,同一单元不同期河道砂体切叠,井间砂体连通关系不明确,水驱优势方向不清楚。随着开发时间延长,区块采出程度高,含水上升速度加快,为了提高剩余油挖潜的针对性,控制产量递减,以细分单砂体连通关系为基础,识别优势水驱方向,提高水驱调整的针对性与有效性。
Most of the main sedimentary units in Block A contain two sub-sedimentary cycles. In the same unit, river sand bodies in different periods are superimposed. The connectivity between sand bodies in the wells is not clear and the dominant direction of water flooding is not clear. With the development time prolonging, the block mining degree is high and the water cut rate is accelerating. In order to improve the pertinency of residual oil tapping potential and control the production decline, based on the subdivision of single sand body connectivity, identify the dominant waterflood direction and increase water Driven adjustment of the relevance and effectiveness.