首页 | 本学科首页   官方微博 | 高级检索  
     

压裂气井非达西流动模拟研究
引用本文:郭建春,赵金洲,阳雪飞.压裂气井非达西流动模拟研究[J].西南石油学院学报,1999,21(4):7-10.
作者姓名:郭建春  赵金洲  阳雪飞
作者单位:[1]西南石油学院石油工程系 [2]青海石油管理局
基金项目:中国石油天然气集团公司“九五”重点科技攻关项目
摘    要:在压裂气井中,低粘气体在高导流支撑裂缝中的渗流阻力降低,渗流速度加快,气体渗流入井的流动由达西流变为非达西流,目前基于达西流动假设所制作的预测压裂井生产动态的典型图版,对压裂气井生产动态的计算结果与实际相较大。为此在引入非达西因子基础上,首次推导建立了压裂气井中真实气体在地层--裂缝中非达西渗流的数学模型,采用有限差分法得到该模型的数值方程和求解方法,推导了非达西因子的数值计算法,模拟计算了压裂气

关 键 词:压裂  支撑裂缝  气井  模拟  非达西流动  水力压裂

A study of non-darcy flow simulation in fractured gas wells
GUO Jianchun.A study of non-darcy flow simulation in fractured gas wells[J].Journal of Southwest Petroleum Institute,1999,21(4):7-10.
Authors:GUO Jianchun
Affiliation:Southwest Petroleum Inst
Abstract:The resistance to flow of low viscosity gas in fractured wells with high conductivity fractures decreases and flow velocity rapidly increases, non-darcy flow near wellborn occurs. There is a big gap between the production performance prediction on the fractured wells using the typical curves developed by darcy flow law and practice. On the basis of the non-darcy flow factor, this paper presents the non-darcy flow mathematical model of real gas in the reservoir and fracture. The corresponding numerical model and solution methodology is derived by the finite difference method and the numerical algorithm of non-darcy flow factor is derived. The pressure performance at buttonhole, formation and propped fractures and non-darcy factors in the fractured gas well production are simulated and calculated. The results show the non-darcy flow exited in the fractured wells has much effect on the pressure and production performance. The effect has more notable in the lower conductivity or higher productivity well. The model and methodology can be applied to the performance prediction in a fractured well.
Keywords:fracturing propped fracture  gas well  non-darcy flow  simulation  
本文献已被 CNKI 维普 万方数据 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号