A slang term for an internal drift diameter gauge typically used to check casing or tubing joints before they are picked up and run into the wellbore.
在套管单根或油管单根被提起和下入井筒以前对其进行检查所用的内通径规的习用语。
2
The utility model relates to a pressure gauge for fire extinguisher used in the fire fighting equipment, comprising a casing part, a measuring system, and an indication part.
本实用新型涉及消防设备中的灭火器压力表，由外壳部分、测量系统、指示部分组成。
3
The main reason causing the low restoring rate of the small gaugecasing damaged Wells in Daqing Oilfield is the inefficiency of drifting and reaming technology.