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气井产量递减的主要原因是,在没有外部能量补充的前提下,地层驱动能量会不断衰竭,因此对气田做好递减规律研究是很有意义的,榆37井区经过10年多的滚动开发,部分井进入了产量递减期。气藏开采过程中,气井的产量递减规律通常采用Arps法、改进衰减法、Fetkovich递减分析方法进行描述,上述几种方法的联合对比使用,可以获得更符合实际的产量递减规律曲线,从而推导出气井产量预测方程,得到较准确的产量预测数据。
The main reason for the decreasing production of gas wells is that the driving energy of the formation will be continuously depleted without external energy replenishment. Therefore, it is of great significance to study the decreasing law of the gas field. After more than 10 years of rolling development in the well of Yu37, Some wells entered the production decline period. During the process of gas reservoir mining, the law of decreasing production of gas wells is usually described by Arps method, improved attenuation method and Fetkovich descent analysis method. The combination of the above methods can be used to obtain a more realistic rule of yield decline and deduce Gas well production prediction equation, get more accurate output forecast data.