Legacy System Analysis
Legacy System Analysis
The seas are now full of Subsea Control Systems, some over 40 years old and still operating well.
The addition of new trees and new equipment can be extremely challenging. Getting support from controls system vendors for reanalysis and assessment of feasibility of new extensions can sometimes be very difficult - even impossible in some cases, where knowledge and drawing details are now completely lost. The issues of inductive couplers, legacy communications systems, linear subsea power supplies and non standard operating voltages are justifiably areas of concern for anyone considering expansion.
Older systems are very often plagued by poor communications and marginal power performance. In the vast majority of cases this needn’t be the case and could be fixed relatively easily and at nominal cost. The adjustment of topside control timing, modification of modem frequency response or line matching and improvements in power factor are just some of the ways we could help you get your field running smoothly again.
Our legacy analysis specialities include:
- Power delivery margins
- Inductive Coupler systems
- Hydraulic operating timing
- Measurement and reverse engineering of communications systems
- Communication margins
- Communications null effects due to spurs
- Crosstalk with existing system
- Correlation between deployed measurements and models
