摘要
我国众多的稠油油藏主要采用注蒸汽吞吐方式开采。研究表明,当高温、高压、高pH值蒸汽介质注入储层后,会导致矿物溶解、粘土转化、新生矿物及结垢沉淀产生等一系列变化。通过数模及物模实验,揭示出了王庄油田蒸汽吞吐过程中储层物性的变化规律。实验结果对稠油油藏注蒸汽吞吐开采具有指导意义。
Stem stimulation has been carried out by a large number of heavy oil reservoirs in China and the research indicates that the injection of steam medium with high temperature,high pressure and high PH value into reservoirs will lead to a series of changes: mineral dissolution,clay transformation,new minerals and precipitation fouling. Through numerical simulation and physical simulation,the variance regularity of reservoirs in steam stimulation of Wangzhuang oilfield has been revealed. The simulation results will provide useful guidance for steam stimulation of heavy oil reservoir.
出处
《石油地质与工程》
CAS
2010年第2期85-86,共2页
Petroleum Geology and Engineering
基金
中国石化集团公司攻关项目"王庄水敏性油藏开发技术"(编号P-01)部分成果
关键词
蒸汽吞吐
储层变化
矿物溶解
粘土转化
新生矿物
结垢沉淀
steam stimulation
reservoir variance
min-eral dissolution
clay transformation
new minerals
scale precipitation