Pipe Recovery
The Differential Pressure Firing Head (DPFH) provides peace of mind for AnTech's customers who require the quickest way to release the tool string if it becomes locked in the well.
The DPFH works together with AnTech's Pipe Recovery Systems Chemical Cutter to release the string. The Chemical Cutter Head is positioned at the sticking point and detonates the DPFH.
The DPFH uses a small explosive charge to ignite the Chemical Cutter. Detonation is conducted by sealing the flow from the tubing to the well by the use of a ball. This creates a difference in pressure that breaks the shear pins that hold the firing pin.
By carrying out this simple procedure, the tool string is freed, significantly reducing downtime.
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Specifications
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| Outside Diameter |
1-3/16" (30.2 mm) |
| Inside Diameter |
7/8" (22.2 mm) |
| Make-Up Length |
22.6" (575.0 mm) |
| Max. Operating Temperature |
212° F (100° C) |
| Min. Operating Temperature |
-58° F (-50° C) |
| Max. Operating Pressure |
10 ksi (69 MPa) |
| Max. Differential Pressure |
10 ksi (69 MPa) |
| Max. Tensile Rating (@ 80% Yield) |
22,500 lb (100 kN) |
| Max. Compression Rating |
22,500 lb (100 kN) |
| Max. Torque Rating (RH) |
450 ft-lb (600 Nm) |
| Service |
Normal well fluids (Not H2S) |
| Upper and Lower Connections |
1" CT roll on connection |
Enquiries
If you are interested in AnTech's DPFH, please contact us for more information and a member of our sales team will be happy to help you.