XI 'AN ZZ TOP OIL TOOLS CO.,LTD
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Hydraulic Below Packer Safety Joint For DST service Fracturing Service
The below packer hydraulic safety joint is designed to use in testing strings or shoot and pulls to allow a packer to be unset and disconnected from tubing conveyed perforating guns if the guns become stuck following perforation and testing.
The hydraulic below packer safety joint is operated by pulling a preset amount on the workstring until the tool is actuated to provide 36 in. of travel to unset the packer.Rotating the safety joint to the right 30 turns releases the tool from the perforating guns and leaves a 4 3/4-in. OD nipple facing up. Inside the nipple is a 3 1/2-in. IF tool joint box facing up. This allows the guns to be picked up with a standard overshot or a 3 1/2-in. IF pin thread.
Technical parameter of Hydraulic Below Packer Safety Joint
| Size | 127.5mm(5”) | ||||||||||||||||||||||||||||||||||||
| ID | 57mm | ||||||||||||||||||||||||||||||||||||
| Length | 2903mm(IF BxP) | ||||||||||||||||||||||||||||||||||||
| Working Pressure | 105Mpa | ||||||||||||||||||||||||||||||||||||
| Tensile Strength | 590KN | ||||||||||||||||||||||||||||||||||||
| Internal Pressure Strength | 135Mpa | ||||||||||||||||||||||||||||||||||||
| External Pressure Strength | 123Mpa | ||||||||||||||||||||||||||||||||||||
| Torque Strength | 10.5KN.m | ||||||||||||||||||||||||||||||||||||
| Service | NACE MR0175,Above 175F | ||||||||||||||||||||||||||||||||||||
| Working Temperature | -29oC~204oC | ||||||||||||||||||||||||||||||||||||
| Connection Thread | 3 1/2” IF BXP 3 7/8” CAS BXP | ||||||||||||||||||||||||||||||||||||
