压力敏感性对低渗透油藏弹性产能影响  

Effect of Pressure Sensitivity on the Elastic Productivity of Low Permeability Reservoir

作　　者：牛丽娟[1] 

机构地区：[1]大庆油田有限责任公司试油试采分公司,大庆163412

出　　处：《科学技术与工程》2014年第3期137-140,共4页Science Technology and Engineering

基　　金：国家科技重大专项(2011ZX05009-004)资助

摘　　要：低渗透油藏储集层岩石本身的特性决定了油藏较易受压力敏感性影响。油藏在弹性开发过程中,由于只依靠天然能进行开采,对地层没有能量补充;地层的孔隙度、渗透率等性质很容易受到压力敏感的影响。通过岩心实验,表明低渗透油藏岩心的渗透率随围压变化而变化,呈指数变化趋势,并通过油藏数值模拟软件(ECLIPSE)进行模拟计算,分析压力敏感性对低渗透油藏的影响。The low permeability reservoir is sensitive to the pressure because of its reservoir-rock＇ s characteris- tics. In the elastic development process, reservoirs exploition depends on natural energy and no energy supple- ment. This results that the porosity, permeability and other properties are susceptible to pressure. Core experiments show that the permeability of low permeability reservoirs have an exponential tendency with the change of confining pressure, and the impacts of stress sensitivity on low permeability reservoir are analyzed through the ECLIPSE simu- lation.

关 键 词：低渗透 弹性开发 压力敏感 数值模拟 

分 类 号：TE348[石油与天然气工程—油气田开发工程]