Research on Non-Darcy Flow Productivity Model and Water Flooding Response Pattern of Inverted Five-Spot Rhombus Well Pattern in Low Permeability Reservoir

摘要：

　　According to the characteristics of water flooding development in low permeability reservoirs,on the basis of flow pipe model,considering threshold pressure gradient and threshold coefficient,we use streamline integral method and unit analysis method to derive a Non-Darcy flow productivity model of rhombus inverted five-spot well pattern in low permeability reservoirs.And further,analyze the response time and the relationship between long-axis well spacing and short-axis well spacing.Case study shows that when long-axis well spacing is constant,with the increase of injection-production pressure difference,the short-axis well spacing decreases,meanwhile the production goes up gradually; when injection-production pressure difference is constant,based on the opening angle,we can obtain the rational long/short axis well spacing,and reasonable productivity of rhombus inverted five-spot well pattern in low permeability reservoirs development.

关键词： Low permeability reservoir Non-darcy flow Rhombus inverted five-spot well pattern productivity model threshold pressure Gradient water flooding response pattern

作者: Lei Junjie Li Hui Luo Zhongming

作者单位: Southwest Petroleum University,Chengdu,China;Shaanxi Yanchang Petroleum company limited,Yan”an,China College of Earth Science and Resources,Chang”an University,Xi”an,China Research Institute of Petroleum Exploration and Development,Chuanqing Oilfield Company,Chengdu,China

会议类型: 国内会议

会议名称: 2017年第五届数字油田国际学术会议(DOFIAC2017)

会议地点: 青岛

会议语种:英文

页码: 335-341

在线出版日期: 2017-10-15（万方平台首次上网日期，不代表论文的发表时间）