流线描述方法探讨与应用——以H88断块为例

Discussion and application of streamline description method: a case of fault-block H88

流线描述能直观反映油藏流体在注入井与生产井之间的运动轨迹,了解单砂体注采井组的剩余油分布规律。江苏油田H88断块经过长期开采后油藏非均质性加剧,水驱方向辨识不清,无法有效地开展注采优化调整。对目前存在的几种流线描述分析方法进行了探讨,并在典型区块H88断块进行了应用,为油田后期流场调整提供决策依据,也为油藏复杂的地下流场描述提供借鉴。

The distribution law of remaining oil in a single sandbody injection-producing well group can be understood using a streamline description,which can directly reflect the movement trajectory of reservoir fluid between injection wells and production wells.The reservoir heterogeneity has increased as a result of the long-term exploitation of fault-block H88 in Jiangsu Oilfield,and the direction of water flooding can not be clearly identified,making optimization and adjustment of injection production difficult.Several current methods of streamline description and analysis are discussed and applied in the typical fault-block H88 throughout this paper,which provides a decision basis for adjusting the flow field in the later stages of the oilfield,as well as a reference for describing the complex underground flow field.