STP – Subsea Test Pump for performing pipeline hydro or leak testing without the use of downlines.
EQUIPMENT SPECIFICATIONS
The STP can be mounted on an ROV skid or fitted to the Subsea Test Pump Manifold.
If the pump is mounted on a skid fitted below, or backpack on the ROV, it can be directly coupled to the main ROV hydraulic system thereby maximising the power available from the ROV, which improves the pump output performance & efficiency. Flow / press characteristics indicated below are for a typical ROV auxiliary pump supply.
Different flow rates can be selected via ROV operated pilot valves. Two independent pressure relief valves protect asset from over pressurisation.
TECHNICAL
UNIT WEIGHT Approx 1100 kg (neutral in seawater)
FRAME / CONTAINER
Aluminium 6082-T6 Frame
4 point sling
Dimensions 2800(L) x 1600(W) x 671(H) mm (Under slung ROV skid
CHEMICAL CAPACITY 2 X 20 lit tanks
CHEMICAL CAPABILITY Up to 2 different chemicals can be used
FLOW / PRESS CAPACITY From 28 lit/min to 18 lit/min at 460 bar. (ROV supply of 65 lit/min at 165 barg)
PIPELINE CONNECTION End connection configured to suit project requirements
INSTRUMENTATION
2 x Water flowmeters, 2 x Pressure Transducers
Multi-channel datalogger with RS232 or 485 output.
Communication to topside PC via ROV umbilical
DEPTH RATING 3000 m standard (5000 m on request)
FILTRATION 50 micron filter
UTILITIES REQUIRED 24 vdc nominal power supply & comms port from ROV
