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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 |