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

。
声明: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,其表达内容亦不代表本软件的观点;若发现问题,欢迎向我们指正。
There was a man here last month; he knew a formula he wanted to sell me, 'sight unseen'; but he was in such a hurry I got suspicious, and I found he'd managed to steal it, working for the big packers in their glue-works.
上个月这里有一个人;他知道他想卖给我的公式,“看不见的”;但他太着急了,我起了疑心,我发现他设法偷了它,为大型包装商在他们的胶水厂工作。