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利用替代比这一概念，本文提出了一种利用直井产能评价结果进行水平井产能评价的方法。可对水平井及多分支水平井的产能和影响水平井产能的因素进行研究。本文计算方法可用于油藏多分支水平井开发的早期评价。
Using the concept of substitution ratio, this paper presents a method to evaluate horizontal well productivity using the evaluation results of vertical well productivity. The productivity of horizontal well and multi-lateral horizontal well and the factors that affect horizontal well productivity can be studied. The calculation method in this paper can be used for the early evaluation of multi-branch horizontal well development in oil reservoirs.