Reversing Sub
Tool Description
The reversing sub is also called reversing spear which is a special tool for reversing stuck drill stem above stuck point in drilling and work over operation . In treatment of stuck drill stem, it can work as a fishing pin tap in reversing operation.When fish is stuck or can not be reversed in fishing or reversing operation , the fish can be reversed from reversing sub and the fishing drill tool can be tripped out .
Technical parameters and specifications
O.D. | Thread connection (LH) | Fishing thread (RH) | Tensile Strength (KN) | Torsion Strength (KN・m) | |
mm | in | ||||
105 | 4 1/8 | 2 7/8IF | 2 7/8IF | 500 | 9 |
121(127) | 4 3/4(5) | NC38 | NC38 | 900 | 15 |
165 | 6 1/2 | NC50 | NC50 | 1500 | 35 |
178 | 7 | 5 1/2FH NC50 | 5 1/2FH NC50 | 2000 | 50 |
197 | 7 3/4 | 6 5/8REG | 6 5/8REG | 2500 | 65 |
CONOVA has a rigorous, efficient, and professional technical service team, including technical consultation, solution design, downhole tool customization, on-site technical services, and oil and water control effects evaluation.
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