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UFH

Universal firing head (UFH) is designed for triggering PKO 63-AT, PKO 73-AT, PKO 89-AT, PKO 102-AT, PKO 114-AT perforators deployed in the tubing in vertical, deviated and horizontal wells with water, oil or other washing fluid.

Features and advantages:

  • can be used in vertical, horizontal and deviated wells with pressure sink on a productive formation;
  • reliable head triggering at hydrostatic pressure at least 5 MPa with DYNAWELL HNS detonator inside the head;
  • no accidental triggering at pressure not exceeding 1.5 MPa, when the head is charged and put into well mouth;
  • well bore can be washed via circulating holes, formation fluid enters the tubing after perforation;
  • triggering by ball or dropbar dropped in the tubing, depending on process conditions;
  • compatible with any equipment installed above the head (sludge traps, etc.);
  • can be used after continuous exposure to high pressure and temperature;
  • NO-GO protecting device (used when triggering by rod only) eliminating risk of accidental head triggering by a geophysical device.

Parameter

Value

External diameter, maximum, mm

76 (89)

Length, maximum, mm

480,0

Weight of the head, no more than, kg

10

Weight of the blasting explosive, maximum, g

1,0

External hydrostatic pressure that doesn’t set off head triggering, MPa

1,5

Minimum external hydrostatic pressure that provides reliable head triggering provided DYNAWELL HNS detonator is used, MPa

5

Maximum permissible hydrostatic pressure in application, MPa

80

Maximum permissible temperature in application,  °С

150

200*

Available salvos, minimum

5


* - high pressure implementation