The PowerCube is a novel battery driven hydraulic power unit which can augment or replace traditional accumulator based solutions with the following key benefits:
Energy density of the battery system is c.2,000x that of accumulators resulting in significant space and weight savings
State of the art battery cells maximise safety providing full thermal and chemical stability
Variable displacement pumps with full and precise hydraulic control
Capable of operating at up to 5,800 PSI
System can be stacked or distributed to meet space requirements offering flexibility of configuration
Multiple cubes can be combined providing scalability of redundancy and power
The PowerBank is a novel closed loop hydraulic chemical injection system that enables:
Hydraulic functions to be powered close to or on the X-tree; and
Flow assurance chemicals to be stored and injected locally at the X-tree
By providing power close to the X-Tree, the PowerBank allows for a reduction in the number of hydraulic lines required in the umbilical, therefore drastically reducing umbilical cost
The system comprises:
Subsea fluid storage unit
Pumping module for chemicals and hydraulic fluid (up to 8 independent pump units)
ROV handling allows for ease of maintenance
Subsea Battery Systems
QL Tech has developed a modular scalable subsea battery system which can be tailored for a variety of applications - both with in drilling and production.
Using state of the art lithium ion technology, our systems are able to pack high power into a low footprint and weight.
The battery assemblies feature an in-house high reliability battery management system so are suitable for mission critical applications.
Assemblies can be provided with or without QL Tech's in-house designed inverter / motor controller which is rated for up to 200kW.
A smaller 15-20kW inverter is currently in development.