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随着注水开发时间的延长,B区块部分油井已进入高含水期开采,高含水井数逐年增加,油井挖潜难度越来越大。为此,在油藏精细描述的基础上,对不同的开发状况及剩余油分布的类型,采取了不同的治理对策,均得到应用,形成了B区井层挖潜的新模式。
With the extension of water injection development time, some wells in Block B have entered the period of high water cut, and the number of high water cut wells has increased year by year, making it more and more difficult for oil wells to tap the potential. Therefore, based on the detailed description of the reservoir, different treatment strategies have been adopted for different development situations and the types of remaining oil distribution, all of which have been applied to form a new model for potential exploration in well B of the reservoir.