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Oil and Gas Well Drilling and Servicing Tool Fishing MagnetFishing Magnets are used to retrieve all types of small objects having magnetic attraction from bore hole bottoms. Such un-drillable objects
Fishing Magnets are used to retrieve all types of small objects having magnetic attraction from bore hole bottoms. Such un-drillable objects as bit cones, bearings, slips, tong pins, and milling cuttings can often be retrieved only by magnetic attraction. It has advantages of simple structure, convenient operation, reliable property, small volume and light weight.
These Fishing Magnets are particularly valuable for use prior to diamond coring. In a single trip, the Fishing Magnet will completely clean the hole of these damaging junk items, insuring good performance and safeguarding the valuable bit.
Fishing Magnets may be run on wire lines or on pipe. Wireline operations have the advantages of speed and economy. Pipe operations have the great advantage of utilizing the generous circulation holes in the magnet to eliminate settlings above the fish, and to loosen the fish.
Fishing magnet is used to absorb the magnetized junk objects by permanent magnet. The bottom is equipped with a protective cover that can prevent magnet damage if don’t use. It can be divided into A and B structures according to the different usage.
OD mm (inch) | Connection | Attraction (kg/cm2) | Hole Size (mm) |
381 (15) | 7 5/8REG | 7.5 | 444.5 |
356 (14) | 6 5/8REG | 7.5 | 444.5 |
311 (12 1/4) | 6 5/8REG | 7.5 | 340-375 |
292 (11 1/2) | 6 5/8REG | 7.5 | 300-442 |
280 (11) | 6 5/8REG | 7.5 | 300-442 |
254 (10) | 6 5/8REG | 7.5 | 265-311 |
225 (8 7/8) | 6 5/8REG | 7.5 | 235-270 |
216 (8 1/2) | NC50 | 7.6 | 235-270 |
203 (8) | NC50 | 7.7 | 215-240 |
190 (7 31/64) | NC50 | 7.8 | 200-225 |
178 (7) | NC50 | 7.9 | 185-210 |
156 (6 9/64) | NC38 | 7.9 | 160-185 |
146 (5 3/4) | 3 1/2REG | 7.8 | 160-185 |
121 (4 3/4) | NC31 | 7.7 | 135-165 |
102 (4) | 3 1/2REG | 7.7 | 110-135 |
83 (3 9/32) | 2 3/8REG | 7.7 | 95-110 |
76 (3) | 2 3/8REG | 7.7 | 95-110 |
