The causes are presented as follows: packer unloading pressure, formation damage, oil tool plugging, formation voidage, the worst formation physical properties and the effect from vicinage wells.
地层污染或工具堵塞;地层欠压;地层物性极差;邻井影响等。
，的地区The causes are presented as follows: packer unloading pressure, formation damage, oil tool plugging, formation voidage, the worst formation physical properties and the effect from vicinage wells.
地层污染或工具堵塞;地层欠压;地层物性极差;邻井影响等。
明：以上例句、词性分类均由互联网资源自动生成，部分未经过人工审核，其表达
不代表本软件的观点；若发现问题，欢迎向我们指正。
