低渗透油藏注采井间压力分布与流态响应研究  

Study of pressure distribution and flow pattern response between injection and production well in low permeability reservoirs

作　　者：燕良东[1] 朱维耀[2] 宋洪庆[2] 

机构地区：[1]中国科学院渗流流体力学研究所,河北廊坊065007 [2]北京科技大学土木与环境工程学院,北京100083

出　　处：《岩土力学》2007年第S1期366-370,共5页Rock and Soil Mechanics

基　　金："973"项目资助(No.2001CB209100)。

摘　　要：利用非线性数学模型,能够全程描述低渗透油藏的非线性流动规律,从理论上给出了低渗透油藏中流态分布的计算方法,分析了注采压差、注采井距和地层渗透率对流态分布的影响,指出了流体在低渗透油藏中以特低速度流动时压力分布的特点,纠正了前人在这个问题上的认识失误。实际岩芯的渗流试验检验了理论的正确性。The nonlinear flowing rule in low permeability reservoirs can be described entirely with the nonlinear mathematical model. The theoretical calculation method of flow pattern distribution is proposed. Flow pattern distribution under the influence of injection-production pressure,injection-production well spacing and formation permeability in low permeability reservoirs is analyzed in this paper. The model proposed here also describes the pressure distribution characteristics of fluid flow in extra-low velocity in low permeability reservoirs,which corrects former misunderstandings of the characteristics.

关 键 词：低渗透 非线性数学模型 流态 影响因素 压力分布 

分 类 号：TE312[石油与天然气工程—油气田开发工程]