2004年新钻的4口裸眼完成井，投产时出现了油层严重垮塌，井下堵塞，油井报废。
The oil layers of four open hole Wells drilled in 2004 occurred serious collapse to result in downhole plugging and oil well fail when oil well put into production.
针对宝钢4号高炉投产时控制系统的现状，详细设计了4号高炉一贯过程控制(BPC)系统。
Based on the status quo of the original control system for the Baosteel No. 4 BF when it was put into production, the Baosteel process control (BPC) system was designed in detail.
为了防止天然气管道在运行过程中生成水合物堵塞管道，天然气管道在投产时必须彻底脱水干燥。
In order to prevent the gas pipeline from being blocked by the hydrates formed in the process of transportation, the gas pipeline must be thoroughly dewatered and dried out before start up.
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