摘要
国内外关于注水对地层渗透率影响的研究主要集中在应力变化上,对注水温度效应的研究非常少。室内实验表明:随着温度降低,流体通过低渗透多孔介质的渗透率也随之降低,降低的幅度与实验温度和介质的初始渗透率有关,并且这种降低是部分不可逆的。该实验研究结果对低渗透油田的注水开发和施工作业中是否会产生冷伤害提供部分依据,在今后油气田的生产实际中应引起高度重视。
There is more attention on pressure change of water injection to the permeability of layer at home and abroad, but a little research on the temperature influence. Experiment results shows: the fluid permeability rate through porous media decreased with the decreasing of the temperature, the depressed range is related with the temperature and media's initial permeability rate and the penneability decrease is part of irreversible. It gives part of support to whether water injection development and construction will bring cold damage to low permeable oil field and high concentration should be gave in oil field development practice in the future.
出处
《石油地质与工程》
CAS
2006年第6期43-45,共3页
Petroleum Geology and Engineering
关键词
低渗透
温度效应
冷伤害
low-permeability
temperature effect
cold damage
