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递减率主要用于描述递减阶段的产量变化规律,而产量相对变化率则能够表征油田开发全过程的产量变化特征。对大量数据的统计分析表明,在油气田开发过程中,由于油气田规模不断扩大,不断采取增产措施,油气田产量相对变化率相当复杂,但是更加深入的研究表明,可以采用m-n法建立通过曲线图版,寻找表征每个油气田特定的m值,拟合出其表征措施效果的n值,从而揭示油气田产量变化的内在规律。
The rate of decline is mainly used to describe the law of yield change during the descending phase, while the relative rate of change of yield can characterize the yield change characteristics of the whole process of oilfield development. The statistical analysis of a large number of data shows that in the process of oil and gas field development, due to the continuous expansion of oil and gas fields and the constant stimulation measures, the relative rate of change in output of oil and gas fields is quite complicated. However, more thorough studies show that mn can be used to establish a graph plate, The specific m value of each oil and gas field is characterized and the n value of the effect of the characterization measure is fitted to reveal the inherent law of the output change of the oil and gas field.