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长3层为水下分流河道沉积,宽度在2.0-4.0Km,分布范围局部、油层厚度变化大,采用水平井开发且井排垂直于最大主应力方向可有效动用该层地质储量,水平井初期采用自然能量开发,但含水呈上升趋势,流体性质监测结果显示见长4+5层注入水,本文通过脉冲中子氧活化测井、正交偶极声波测井、数值模拟垂直缝等手段分析长4+5层注入水窜入长3层原因并总结治理水窜的措施,为长3层的长期稳产提供了开发经验。
The 3rd and 3rd floors are of submarine distributary channel with a width of 2.0-4.0Km. The distribution area is large and the thickness of oil layer varies greatly. With the development of horizontal wells and the well row perpendicular to the direction of maximum principal stress, the geological reserves of this layer can be effectively utilized. The development of natural energy, but the moisture content is on the rise, the fluid properties monitoring results show that the long 4 +5 layer of water injection, pulse nuclear neutron oxygen activation logging, Orthogonal dipole acoustic logging, numerical simulation of vertical joints and other means of analysis of long 4 + 5 layer into the water into the long 3 layers of reason and summed up the management of water channeling measures for long 3 long-term stable production provided development experience.