The Sand proof mechanical firing head consists of body, Piston assembly, safety pin, stop ring and Igniter mainly.
Used in TCP operation, it is initiated by dropping bar from the top of well bore to initiate detonating cord and booster, and then the perforating charges.
Features and Benefits
The product has the advanage of simple struction, convenient to operate, sand-proof and preclusive of blocking up, unavailable for water in, with safe and reliable performance.
It is suitable for usedin vertical watery mud well and small inclined well.
| Type | FD-A1 | FD-B1 |
| OD | 2.4", 2.9", 3.5", 3.7" and Above | |
| Max. Pressure | 60Mpa/8700psi | 120Mpa/17400psi |
| Max. Temperature | 160oC/48h or 140oC/100h | 220oC/48h or 200oC/100h |
| Min. Initiation Energy | Bar Weight:5+-0.1kg drop Height:0.7m | |
| Non-Initiation Energy | Bar Weight:2+-0.1kg drop height:0.2m | |
