The Drilling Fishing Cups produced by our factory are mainly used to catch the small junks such as slip dogs, screw, nuts and hard metal inserts etc.

The circulating sub is a specialized tool for circulating drilling fluid when running in casing on the way or finishing running casing down-hole. Acc

AJ Type Safety Joint is a specialized joint consisting of two parts. The specialized joint takes protective effect for drilling stem in drilling, rep

petroleum machinery H Type Safety Joint, which is installed on the position required for subsurface drill stem and can bear in fishing operation all

Drill Rod Joint also called Tool Joint. There are two kinds on drill rod joint or drill pipe connections ontology as thin buckle threaded and welded.

Working principle of screw drill: The screw drill is a positive displacement downhole motor drill powered by the drilling fluid and converting the li

LZ Series Drilling Motor-petroleum machinery Working principle of drilling motor: The drilling motor is a positive displacement downhole motor drill