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本文从油藏工程研究的角度出发,提出了实际弹性累积产量与相应时刻封闭型弹性累积产量理论值之比的概念,做为评价油藏天然驱动能力大小的指标。该方法基于物质平衡法,是根据国内90个油藏(区块)开采情况的分析、计算产生的。经证实应用这个指标及通常采用的每采出百分之一地质储量压力下降值,所得到的天然驱动能力大小分级图(图1),对于定量或半定量评价新油藏天然驱动能量大小及选择合理开发方式是有一定价值的。
In this paper, from the perspective of reservoir engineering, the concept of the ratio of the actual elastic cumulative production to the theoretical value of the closed elastic cumulative production at the corresponding moment is proposed as an index to evaluate the natural driving capacity of the reservoir. The method is based on the material balance method and is calculated based on the analysis of the exploitation of 90 reservoirs in the country. It is proved that applying this indicator and the commonly used pressure drop value of every 1% of the geological reserves produced can provide a quantitative or semi-quantitative assessment of the natural driving energy of the new reservoir and Choose a reasonable way to develop is of some value.