1·Before Deepwater Horizon foundered there had not been a big leak from an offshore oil well for 40 years.
在深水地平线号出事前，那里已有40年未出现一起近海油井严重泄漏的事件。
2·The paper offers actual evaluation result of oil well.
本文给出了某油井的实际评价结果。
3·The program is to process all kinds of oil well pipe thread and casing coupling.
该项目是加工各类油井管螺纹、套管接箍的机械加工项目。
4·Sand production is an important factor, which affects oil well productivity.
出砂是影响油井生产能力的一个重要因素。
5·Therefore, how to remotely transmit the above-mentioned data is of significance to the oil well industry.
因此如何将上述各种数据进行远距离传输在油井工业中具有重要的实际意义。