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某油田(用S表示)长6油藏天然能量不足,依靠自然能量开发采收率低,地层压力下降快速,急需恢复地层能量。通过分析该区地质特点及物性特征,注水开发是该区必需且可行的开发方式。利用数值模拟对该区进行溶解气驱和五点、反九点注水的开发指标预测分析,反九点法是最佳井网方案。在区块中部进行九点井网小井组试验也取得了一定成效。
Some oilfields (denoted by S) Chang 6 reservoir has insufficient natural energy, low energy recovery by natural energy, rapid decrease of formation pressure, and the urgent need of recovery of formation energy. By analyzing the geological and physical characteristics of the area, waterflood development is a necessary and feasible way of development in this area. The numerical simulation is used to predict the development index of dissolved gas flooding and five-point and nine-point water injection in this area. The anti-nine-point method is the best well pattern. Nine wells in the central well block test also achieved some success.