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数值模拟,可用于计算水平井的产能和采收率,帮助确定开采方案。在以往的文献中,论述过多种计算水平井产能的分析方法。但这些方法只限于封闭系统中均匀介质的单相流体,本文比较最常用的分析方法,并通过数值模拟方法讨论了水平井的产能和动态评价。数值模拟是比较垂直井和水平井产能的一种有效方法,因为此法可在三维空间,多相流体和不同边界条件下计算自然裂缝和非均质性。均质和非均质油藏的一次开采,注水开采和出现气锥、水锥时,其采油速度和最终开采量的模拟结果在以后文章中进行论述。
Numerical simulations, which can be used to calculate horizontal well productivity and recovery rates, help determine mining options. In the past literature, there have been many different methods of calculating productivity in horizontal wells. However, these methods are limited to single-phase fluids with homogeneous media in a closed system. This article compares the most commonly used analytical methods and discusses the productivity and dynamic evaluation of horizontal wells using numerical simulations. Numerical simulations are an effective way to compare vertical well and horizontal well productivity as this method can calculate natural fractures and heterogeneities in three-dimensional space, multiphase fluids and different boundary conditions. The results of the simulation of the recovery rate and the ultimate recovery of a homogeneous and heterogeneous reservoir once mining, water injection and gas cones and water cones occur are discussed in later articles.