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针对杜229断块南部兴V组出水问题,精细统层对比,深化油藏地质研究;结合油井生产动态,开展全过程水性跟踪和示踪剂监测试验。其结果不仅确定了边水水侵部位、层位及方向,而且对水侵速度、能量大小及涉及程度有了全新的认识。在此基础上制定并实施了科学有序的堵水、堵排结合治水、综合治水方案,在已实施的26井次堵水措施中,成功率100％,累计增油6.1×10~4t,确保了全块持续高产、稳产。其工作思路和方法,不仅对开发同类型油藏有现实意义,而且对基础油藏的开发也有借鉴意义。
In view of the water outflow problem in southern Xingxing Formation of Block Du 229, the stratigraphic comparisons of fine stratigraphic layers are carried out to deepen reservoir geological research. Combined with the production dynamics of oil wells, the water-based tracing and tracer monitoring tests are carried out. The result not only confirmed the location, horizon and direction of the water invasion, but also gained a new understanding of the rate of water intrusion, the magnitude of energy and the extent of its involvement. On this basis, a scientific and orderly water blocking, water blocking and drainage combined with water control and comprehensive water control plan have been formulated and implemented. Among the 26 well water plugging measures implemented, the success rate was 100% and the total oil increase was 6.1 × 10 ~ 4t. To ensure that the whole block continued high yield, stable production. Its working ideas and methods not only have practical significance for developing similar reservoirs, but also have reference significance for the development of basic reservoirs.