Xi'An Tiptop Machinery Co., Ltd.
Xi'an Tiptop Machinery Co., Ltd. Oilfield Comprehensive Solution Provider One-Stop Procurement Service Provider Downhole Drilling Tools Expert
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Downhole Drilling Tool Fishing Bumper Sub 4 3/4''~8'', Releasing Tool
Fishing bumper sub is a mechanical jarring tool. It can repeatedly jar for stuck drill stem, make stuck point loose and release, when lifting and jarring can not release stuck, it still can rotate to make releasing fishing tools release fishes. When fishing bumper sub works with mechanical internal cutter, it can make internal cutter get preset constant forward force, to cut steadily. When it works with back off tools, it can compensate a rising stroke for connection after back off.
We also produce H2S resistance Jars, which adopt high quality import sulfur-resistance material.
Please email us for your fishing bumper sub inquiries.
Specification
| Outside dimension mm(inch) | connection | Tensile Load (KN) | stroke mm(inch) | ID mm (inch) | Max. working stroke (KN·m) | Make up torque (KN·m) |
| φ121×2102 (4 3/4×82 3/4) | NC38 | 1220 | 1000 (37 3/8) | 38 (1 1/2) | 8 | 9 |
| φ159×2606 (6 1/4×102 1/2) | NC50 | 1330 | 1400 (55) | 50.8 (2) | 13 | 16 |
| φ165×2606 (6 1/2×102 1/2) | NC50 | 1430 | 1400 (55) | 50.8 (2) | 13 | 16 |
| φ171×2606 (6 3/4×102 1/2) | NC50 | 1530 | 1400 (55) | 50.8 (2) | 13 | 16 |
| φ178×2606 (7×102 1/2) | NC50 | 1530 | 1400 (55) | 50.8 (2) | 15 | 18 |
| φ203×2729 (8×102 1/2) | 6 5/8REG | 1800 | 1500 (59) | 70 | 20 | 20 |
