大牛地气田自2005年大规模开发以后,有大部分气井已经超过稳产5年年限,且已经进入递减,本文利用Arps递减分析方法对进入递减的单井、投产年份、井区进行了研究,确定了其递减类型,并对递减时间超过27个月的单井进行了归一化处理,了解气田的主要递减类型和递减规律,并预测未来的开发指标变化和调整方案。 Since the large-scale development of the Daniudi gas field in 2005, most of the gas wells have exceeded the 5-year stable life and have entered the declining stage. In this paper, Arps regression analysis is used to study the descending single wells, production years and well areas, The types of decay are determined, and the single wells with decreasing time of more than 27 months are normalized to understand the main decreasing types and decreasing laws of gas fields, and the future development index changes and adjustment programs are predicted.