西安石油大学学报（自然科学版）2018，Vol.33Issue(3)：44-50,7.DOI:10.3969/j.issn.1673-064X.2018.03.007
基于两相启动压力梯度和应力敏感 的油藏油井产能模型研究
Study on Productivity Model of Oil Well in Low-permeability Reservoirs Based on Two-phase Threshold Pressure Gradient and Stress Sensitivity
摘要
Abstract
In the water flooding development of low permeability reservoir,there are oil-water two-phase threshold pressure gradient and reservoir stress sensitivity at the same time.Based on Buckley-Leverett equation,the productivity model of anoil well in low permeability reservoir was established,which is on the basis of the oil-water two-phase threshold pressure gradient and the stress sensitivity based on the rock body effective stress theory.The accuracy of the productivity model was verified by an example.Compared with the other four productivity models,the model has the smallest error,and can accurately describe the flow characteristics of oil-water two-phase flow in low permeability reservoir,which shows that in the development of low permeability reservoirs,it is necessary to take full consideration of the comprehensive influence of the oil-water two-phase threshold pressure gradient and the reservoirstress sensitivity.The research provides theoretical support for the water-flooding development of low permeability reservoirs.关键词
低渗透油藏/油井产能模型/油水两相启动压力梯度/应力敏感性/岩石本体有效应力Key words
low permeability reservoir/oil well productivity model/oil-water two-phase threshold pressure gradient/stress sensitivity/effective stress of rock body分类
能源科技引用本文复制引用
柴汝宽,刘月田,王俊强,辛晶..基于两相启动压力梯度和应力敏感 的油藏油井产能模型研究[J].西安石油大学学报（自然科学版）,2018,33(3):44-50,7.基金项目
国家自然科学基金项目(5137422) （5137422）
国家重点基础研究发展计划(973计划)(2015CB250905) （973计划）
国家科技重大专项(2017ZX05032004-002) （2017ZX05032004-002）
