Subsea Control Module Retrofit | North Sea

Subsea Control Module Retrofit | North Sea
Home Subsea Control Module Retrofit

Background

A remote unmanned platform in the North Sea supports two subsea production wells linked to a host platform. The subsea control system is over 20 years old, is unsupported by the original equipment manufacturer (OEM) and has suffered from repeated failures, unscheduled shutdowns, and limited remote support, leading to a significant loss of production.

Scope

A study was undertaken to consider the implications of subsea electronic module (SEM) replacement within each subsea control module (SCM), including the use of existing inductive couplers which are inherent in the system. Each SCM was disassembled, pre-tested, retrofitted and underwent a factory accepted test (FAT) with new Proserv electronics. The surface control system was also replaced with a new master control system (MCS) to replace the OEM’s system, and provide communications to the retrofit SCMs.

Solution

Proserv provided a retrofit solution using the existing SCM hydraulic and mechanical hardware but replacing the SEM for a more reliable and fully supported unit. This provided a replacement solution with the incumbent SCMs and thus an upgrade path to improve availability and support and system capability.

The solution provided by Proserv was significantly less expensive than a replacement whilst providing greater technical performance and reliability. Using state of the art electronics and remote connectivity, the Proserv solution enabled production from an otherwise unproductive field.

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