An oil well's productivity is generally considered the standard measure of the well's performance. However, productivity depends on several factors, including fluid characteristics, formation damage, the reservoir's formation, and the kind of completion the well undergoes. How a partial completion can affect a well's performance will be investigated in detail in this study, as nearly every vertical well is only partially completed as a result of gas cap or water coning issues. Partially penetrated wells typically experience a larger pressure drop of fluid flow caused by restricted regions, thus increasing the skin factor. A major challenge for engineers when developing completion designs or optimizing skin factor variables is devising and testing suitable partial penetration skin and comparing completion options. Several researchers have studied and calculated a partial penetration skin factor, but some of their results tend to be inaccurate and cause excessive errors. The present work proposes experimental work and a numerical simulation model for accurate estimation of the pseudo-skin factor for partially penetrated wells. The work developed a simple correlation for predicting the partial penetration skin factor for perforated vertical wells. The work also compared the results from available models that are widely accepted by the industry as a basis for gauging the accuracy of the new correlation in estimating the skin factor. Compared to other approaches, the novel correlation performs well by providing estimates for the partial penetration skin factor that are relatively close to those obtained by the tested models. This work's main contribution is the presentation of a novel correlation that simplifies the estimation of the partial penetration skin factor in partially completed vertical wells.

油井的生产力通常被认为是油井性能的标准衡量标准。然而，产能取决于多种因素，包括流体特性、地层损害、储层的地层以及井进行完井的类型。本研究将详细研究部分完井如何影响井的性能，因为几乎每个垂直井都只是部分完井是由于气顶或水锥进问题。部分穿透的井通常会经历由受限区域引起的较大的流体流动压降，从而增加了表皮系数。在开发完井设计或优化表皮系数变量时，工程师面临的一个主要挑战是设计和测试合适的部分渗透表皮并比较完井选项。一些研究人员研究并计算了部分穿透皮肤因子，但他们的一些结果往往不准确并导致过度误差。目前的工作提出了实验工作和数值模拟模型，用于准确估计部分钻探井的拟表皮因子。这项工作开发了一个简单的相关性，用于预测射孔垂直井的部分穿透表皮系数。这项工作还比较了业界广泛接受的可用模型的结果，作为衡量新相关性在估计皮肤因子方面的准确性的基础。与其他方法相比，新的相关性通过提供与测试模型获得的那些相对接近的部分渗透皮肤因子的估计来表现良好。这项工作'