摘要
储层速敏伤害存在于油气田开发和生产中,其伤害机理为微粒运移。临界流速是速敏性伤害的一个标志。储层中可运移的微粒不仅仅是粘土矿物微粒,还包括石英、长石等非粘土矿物微粒,速敏性造成的伤害是不可恢复的。文章通过实验测得临界流速,并根据实验所得数据对实际开发进行评价,结果表明:孤东油田六区在注水时将产生微粒运移,堵塞注水井。
The damage of reservoir velocity - sensitivity usually takes place in the process of the development and production of an oiLfield, and the mechanism to cause damage is fine particle migration. The critical flow velocity is a mark of the velocity - sensitivity damage. The particles migrated in reservoir are not only clay mineral particles, but some non - clay mineral particles, including quartz and feldspar. The damage caused by velocity - sensitivity is usually irrecoverable. The critical flow velocity is measured by experiments, and actual development is evaluated based on the data gained from the experiments. The results show that fine particle migration will occur during water flooding in block six in Gudong oilfield, and the water injection well may be blocked up.
出处
《吐哈油气》
2009年第4期351-353,共3页
Tuha Oil & Gas
关键词
速敏
微粒运移
临界流速
velocity -sensitivity
fine particle migration
critical flow velocity
