But in case it has to evacuate the area around the damaged well, which lies some 50 miles off the Louisiana coast, BP also placed a special plug inside the well's casing.
但是为了预防，必须从离路易斯安那海岸大约50英里的毁坏的油井附近区域撤离，BP也在油井盒里放置了一个特殊的塞子。
The damaged casing is cut and removed from the well.
将被损坏的套管割断，并从井中取出。
Developing an economic and valid pressurized and enhanced casing repair Technology for multiply casing damages with long damaged segment becomes the earnest issue in well repair area.
研究经济有效的多点套损井长井段密封加固修复技术就成为目前修井领域亟待解决的课题。
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