The releasing spear, as a kind of fishing tool, is typically used for fishing drill rods, oil pipes, casings, etc. in the oil drilling industry. It has simple structure, high strength, and works from the inside diameter of the fish.
The do’s and don’ts
the catch size, and make sure the outer diameter of releasing spear should be 1
2. Grease the screw of the mandrel.
3. Fasten the nipple and fix the slips at the position where the release ring can be blocked.
4. The fishing drilling configuration usually consists of releasing spear, bumper sub and driller.
Inner Diameter of fish
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