HALF-OPEN FISHING MAGNET
Semi-open fishing magnet is a tool for fishing small junks in oil and geological drilling, It has the advantages of simple structure, convenient operation, reliable performance, small size and light weight, The permanent magnet is used to absorb and fish the small falling objects such as drill clip, palm, cone, bearing, slip body, slip tooth, tong tooth and other tools falling into the well, so as to effectively fish the small falling objects and purify the bottom of the well.
As shown in the figure, the Semi-open fishing magnet is mainly composed of top sub, magnetic sleeve, high temperature magnetic steel and retaining ring.The connector thread is connected to the drill string, and the retaining ring holds the underside of the magnet, which is used to absorb magnetized junks.
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