MagSunTM Magnet
1. Instruction Manual
Model MagSunTM Fishing Magnet is a fishing tool for recovering iron scraps
and dirt which are generated during the cleaning operation of petroleum, geological
drill and casing repair and cannot be returned by circulating liquid; wherein, magnetic
scraps in the dirt will be attached on external pipe in the position of magnetic ring, and those cannot be attached for circulation will deposit inside the recovery barrel and then be brought out of the well. It possesses advantages such as simple structure, convenient operation and reliable performance. It can utilize the permanent magnet of itself to attract small objects which fall off, thus effectively fishing this kind of fallen objects, and realizing the purpose of purifying the bottom hole.
2. Structure and Principle
The structure is as shown in Figure 1.
The Model MagSunTM Fishing Magnet mainly consists of upper joint, main body,
rectangular magnet and lower joint. Its function is to recover dirt which cannot be returned by circulating liquid in the well; wherein, magnetic scraps in the dirt will be attached on magnetic ring, and those cannot be attached will deposit inside the recovery barrel and then be brought out of the well.
3. Technical Parameters（Available size）
| Tools Size: | 4 1/2’’ | 5’’ | 5 1/2’’ | 7’’ | 7 5/8’’ | 9 5/8’’ | 13 3/8’’ |
| Top Connection | 2 3/8’’ Reg Box | 2 3/8’’ Reg Box | 2 3/8’’ Reg Box | 3 1/2’’ IF Box | 3 1/2’’ IF Box | 4 1/2’’ IF Box | 6 5/8’’ Reg Box |
| Tools OD | 3.125’’ | 3.512’’ | 3.512’’ | 5.224’’ | 5.224’’ | 7.264’’ | 10.720’’ |
| Tool ID | 0.991’’ | 0.991’’ | 0.991’’ | 1.5’’ | 1.5’’ | 2.8’’ | 2.81’’ |
| Upper Tongue Space | 18’’ | 18’’ | 18’’ | 18’’ | 18’’ | 18’’ | 18.5’’ |
| Upper Magnitized Area | 12’’ | 12’’ | 12’’ | 20.5’’ | 20.5’’ | 21’’ | 23.5’’ |
| Lower Magnitized Area | 12’’ | 12’’ | 12’’ | 20.5’’ | 20.5’’ | 21’’ | 23.5’’ |
| Lower Tongue Space | 18’’ | 18’’ | 18’’ | 18’’ | 18’’ | 18’’ | 18.5’’ |
| Overall Length | 5.39’’ | 5.39’’ | 5.39’’ | 6.75’’ | 6.75’’ | 6.75’’ | 7.25’’ |
| Bottom Connection | 2 3/8’’ Reg Pin | 2 3/8’’ Reg Pin | 2 3/8’’ Reg Pin | 3 1/2’’ IF Pin | 3 1/2’’ IF Pin | 4 1/2’’ IF Pin | 6 5/8’’ Reg Pin |
| Torsional Limit(Tool body) | 13.878ft-Ib | 13.878ft-Ib | 13.878ft-Ib | 32.666ft-Ib | 32.666ft-Ib | 103.690ft-Ib | |
| Tensile Limit(Tool body | 405,973Ib | 405,973Ib | 405,973Ib | 691,917Ib | 691,917Ib | 1,323,335Ib | |
| Torsional Limit(Connection) | 7,500ft-Ib | 7,500ft-Ib | 7,500ft-Ib | 22,213Ib | 22,213Ib | 37,800Ib | 45,450Ib |
| Tensile Limit(Connection) | 375,500Ib | 375,500Ib | 375,500Ib | 708,063Ib | 708,063Ib | 944,000Ib | 944,000Ib |