射孔带渗透率计算式的推导与应用  

Derivation and application of permeability calculation model of perforating belt

作　　者：张继成[1] 包智魁 杨浩 ZHANG Jicheng;BAO Zhikui;YANG Hao(School of Petroleum Engineering,Northeast Petroleum University,Daqing 163318,Heilongjiang Province,China;Production Optimization of China Oilfield Services Limited,Tianjin 300451,China)

机构地区：[1]东北石油大学石油工程学院,黑龙江大庆163318 [2]中海油田服务有限公司油田生产事业部,天津300451

出　　处：《浙江大学学报（理学版）》2021年第4期481-487,共7页Journal of Zhejiang University（Science Edition）

基　　金：国家“十三五”科技重大专项(2016ZX05025-001)。

摘　　要：为进一步提高射孔的预测水平及工程应用效果,基于渗流力学理论及等效两套裸眼完井产能公式,推导了射孔带渗透率计算式。给定实际射孔参数,经计算得到:射孔带渗透率与穿深比、孔眼半径、射孔密度呈正相关;穿深比、射孔密度、孔眼半径对射孔带渗透率的影响依次减小。实测验证得到,模型的计算精度可达90%,对现场应用具有一定指导作用。In order to further improve the prediction level of perforation and the effect of engineering application,based on the theory of percolation mechanics and the equivalent of two sets productivity formulas for open hole completion,this paper derives the permeability calculation model of perforating belt.Through the calculation of the actual perforation parameters,the following conclusions are drawn.The permeability of perforation belt is positively correlated with penetration ratio,perforation radius and perforation density.The dominant effect of penetration depth ratio,perforation density and perforation radius on the permeability of perforation belt decreases in turn.The accuracy of the formula can reach 90%,which can guide the field application.

关 键 词：射孔带 渗透率 数学模型 穿深比 射孔密度 孔眼半径 

分 类 号：TE35[石油与天然气工程—油气田开发工程] P548[天文地球—构造地质学]