摘要
中高渗透油藏分析方法是否仍适合低渗透油藏尚需验证。针对此问题,在低速非达西渗流理论的基础上,研究低渗透油藏的产量规律,并给出相应的油田产量递减率与产量、生产时间的算式,以及低渗透油田产量递减率通式。
Production decline of water flooding in low permeability reservoir has been in use in the law of the high permeability reservoir analysis.This method is suitable for the low permeability reservoirs,which needs further verification.In view of this question,the paper conducts the deep research of the production decline in low permeability reservoir on the basis of the theory of low-speed non-Darcy flow,and then provides the relationship between production decline rate of oilfield and productive time and output,which involves seepage threshold pressure affecting factors.Through the study,the production decline general formula has been obtained,which can predict and evaluate production variation of low permeability oil fields.
出处
《重庆科技学院学报（自然科学版）》
CAS
2011年第4期44-46,共3页
Journal of Chongqing University of Science and Technology：Natural Sciences Edition
关键词
低渗透油藏
启动压力梯度
非达西渗流
产量递减规律
low permeability reservoir
seepage threshold pressure gradient
non-Darcy seepage flow
production decline
