长行程液压不压井起下作业装置
long-stroke hydraulic snubbing unit
短行程不压井起下作业装置
short stroke snubbing unit
井下作业场所
working place under mines
井下作业监督
downhole operation supervision
井下作业信息系统
downhole operation information system
三指水下作业机械手
3-Finger Underwater Manipulator
射孔与砾石充填一次起下作业装置
one trip perforating gravel pack system
胜利石油管理局井下作业公司
Downhole Operating Company of Shengli Petroleum Administrative Bureau
shengli petroleum manage bureau
4):19~22
水下作业船
underwater operation ship