孤岛油田随着采出程度不断加大,开采的难度也不断增加:一方面,油田的产量逐年递减,要维持现有的日产水平,每年都必须加大工作量的投入;另一方面,油田开采的边际成本也随各种投入要素、投入量及价格的上升而不断上升。这一状况必将愈来愈明显的作用于油田的整体开采效益上。 Gudao oilfield with the mining degree continues to increase, the difficulty of mining is also increasing: on the one hand, the output of oil fields declining year by year, to maintain the existing level of Nissan each year must increase the workload of investment; the other hand, the oil field The marginal cost of mining also increases with various inputs, inputs and prices. This situation is bound to play an increasingly significant role in the overall recovery of the oil field.