深圳大学学报（理工版）2017，Vol.34Issue(1)：91-97,7.DOI:10.3724/SP.J.1249.2017.01091
启动压力影响下注采井间有效驱替规律
Effective displacement rules for interwell with threshold pressure
摘要
Abstract
Due to the existence of significant threshold pressure gradient,the flow in low permeability reservoirs is low-speed non-Darcy flow.Under these conditions,interwell flow filed has significant difference compared to the fields of conventional reservoirs.In view of the flow characteristics and displacement process analysis of a typical water flooding regime,threshold pressure gradient is introduced into the basic flow equation and combined with the condition that both production and injection wells are working in a constant rate.A mathematical model is established for one injector producer pair in infinite formation.According to the initial and boundary conditions,interwell pressure and velocity field distribution function are deduced from the model.Based on the mathematical description,interwell pressure and velocity field distribution and variation could be defined.The analysis shows that for the waterflood development of low permeability oilfield,only by taking effective flooding strategy,can the oil between the injection and production wells be effectively displaced to a greater extent and can the development effectiveness of low permeability reservoirs be improved.关键词
油田开发/低渗透/启动压力梯度/渗流场/有效驱替/注采井距Key words
oilfield development/low permeability reservoirs/threshold pressure gradient/pressure and velocity field/effective producing area/injector producer distance分类
能源科技引用本文复制引用
陈民锋,王兆琪,张琪琛,陈璐..启动压力影响下注采井间有效驱替规律[J].深圳大学学报（理工版）,2017,34(1):91-97,7.基金项目
National Basic Research Program of China (2015CB250905) 国家重点基础研究发展计划资助项目(2015CB250905) （2015CB250905）
