Land the BOP onto the well head.

座防喷器到井口头。

Oil continued to spill from a damaged well head on the sea floor until July.

石油从海底损坏的油井口不断涌出，并一直持续到7月份。

The pressure and flow rate of fluid in well head were calculated using iteration.

采用迭代法逆循环计算方法，计算井口压力和井口气液排量。

The results show that the fatigue damage of drill pipe in well head is the most serious.

算例分析表明：钻杆在井口处的单次疲劳损伤最大；

The paper introduces the design for meticulous filter of injection well head in oil field.

介绍了井口精细过滤器滤芯的设计。