Precision Mechanical Applications
Voltage Protection Module
VOLTAGE PROTECTION MODULE
VPM-G, VPM-E
The Voltage Protection Module (VPM) is a surface controlled “electrical switch” that provides an additional level of safety when conveying perforating guns or other ballistic devices with the PowerTrac systems. In the safe mode (switch in open position), it ensures no current is available at the ballistic device. In log/fire mode (switch in closed position) correlation tools can be powered and ballistic devices fired. The switch position is continuously monitored and fed back to surface.
APPLICATIONS
In highly deviated or horizontal wells, tractor conveyance of:
- Perforating guns
- Pipe severing tools/back off string shots/tubing punchers
- Explosive plug setting
FEATURES
- Combinable with passive and powered CCLs
- Standard GO type head connections
- Can be run with both positive and negative polarity fired perforating guns
- Compliant with API RP67
BENEFITS
- QHSE; general perforating safety
- Improved operational efficiency
VOLTAGE PROTECTION MODULE SPECIFICATIONS
Service Name | VPM-G1 | VPM-E1 |
Tool body OD | 2.13 inches/54.0mm | 3.38 inches/85.7mm |
Length | 2.34 ft./0.71m | 0.98 ft./0.30m |
Minimum restriction ID | 2.50 inches/63.5 mm | 3.50 inches/88.9mm |
Pressure rating | 15,000 psi/1,034 bar | 15,000 psi/1,034 bar |
Temperature rating (max) | 177 °C / 350 °F | 177 °C / 350°F |
Temperature rating (min) | 0 °C / 32 °F | 0 °C / 32 °F |
H2S/CO2 | NACE MRO-175 | NACE MRO-175 |
Operating voltage | - 50 VDC to -100 VDC | -50 VDC to -100 VDC |
Current (quiescent) | 10 mA ± 2 mA | 15 mA |
Current (motor run) | 50 – 75 mA | 40 -120 mA |
Maximum applied voltage | 1,000 VAC/+1,250 VDC/-1,000 VDC | 1,000 VAC/+1,250 VDC/-1,000 VDC |
1VPM-E,G are products of Guardian Global Technologies