射孔水平井一种新表皮效应模型
A new skin factor model for perforated horizontal wells
-
摘要: 基于Karakas和Tariq的垂直井射孔表皮模型,使用分析计算和空间有限元模拟结合,可以得到射孔水平井一个综合的新表皮效应模型。结果表明水平井表皮主要取决于渗透性各向异性的大小,射孔方位角。利用这种新射孔表皮模型,可以对水平井射孔进行优化使其产能最大化。Abstract: Based on Karakas & Tariq perforation skin factor model for vertical wells, a new composite skin factor model for perforated horizontal wells is built by integrating analytical calculations with 3D finite element simulation. The skin factors of horizontal wells mainly depend on the values of permeability anisotropy and perforation azimuth. This new perforation skin model can be used to optimize horizontal well perforation and to maximize well productivity.