Universal firing head (UFH)
DownloadApplication:
Triggering the tubing type jet perforators in the wells filled with water, oil or other drilling fluid.
The firing head is compatible with the perforating systems PKO 63-AT, PKO 73-AT, PKO 89-AT, PKO 102-AT, PKO 114-AT in a firing circuit beginning with a percussion initiator PI BVT or another device similar to the PI in its susceptibility to detonation. The firing head is activated mechanically (hydraulicly).
Characteristics | UFH | |
---|---|---|
External diameter | 76(89) | |
Length, max, mm | 480.0 | |
Head weight, max, kg | 10 | |
Maximum permissible hydrostatic pressure, MPa | 80 | |
Minimum external hydrostatic pressure ensuring reliable head triggering if DYNAWELL HNS detonator is used, MPa | 5 | |
External hydrostatic pressure that does not cause head triggering, MPa | 1.5 | |
Max temperature, C | 150-200* | |
Ball diameter, mm | 45 |
Technical Specifications
* Outer diameter for PKO89-AT, PKO102-AT, PKO114-AT is 89 mm
Outer diameter for PKO63-AT, PKO73-AT is 76 mm
** for the UFH versions designed for the pressure up to 103.5 MPa and temperature up to 204°С marked as HP
Advantages and features:
- increased handling safety provided by the design of the firing head;
- reliability provided by the design of the head and the percussion initiator PI BVT;
- workability after a long exposure to high pressure and temperature;
- efficient operation in the wells of any curvature: vertical, horizontal and directional;
- possibility of creating depression in the hydraulic system of the well and the reservoir, if necessary;
- accidental actuation is excluded when the charged head is at the wellhead at a pressure not exceeding 1.5 MPa;
- compatibility with any equipment used in perforating systems (adapters, sludge traps, etc.);
- a reliable fuse excludes the possibility of accidental initiation of the layout by geophysical equipment;
- possibility of flushing the well through the circulation holes, possibility of formation fluid entering the tubing after perforation.