Skip to main content

Meeting the demands of harsh environments

Published by , Editor
Oilfield Technology,

In the offshore energy industry, conditions are tough. As a result, even the most straightforward operations can be challenging – both for operators and equipment itself. Having the best equipment for the task in hand is essential, but maintaining it to ensure it always delivers is arguably even more important, as John Curno of Bosch Rexroth discusses.

No matter the industry, equipment is specifically designed to meet the demands placed on it every day. When it comes to offshore, those demands are fierce. Not only does equipment have to deliver round the clock with operations running every day of the year, it also has to perform in the harshest of conditions. For Subsea 7, the world-leading seabed-to-surface engineering, construction and services contractor to the offshore energy industry, maintaining equipment is essential to ensuring the smooth running of projects in even the most challenging of environments.

When excessive vibration was identified on their 120 t crane – a piece of equipment critical to offshore operations – Subsea 7 carried out detailed checks on the entire system in order to reduce the potential impact of this abnormal vibration on other components. Taking proactive steps to protect critical motors from damage, a full inspection and overhaul of equipment was arranged with the component Original Equipment Manufacturer (OEM) – Bosch Rexroth, as part of a planned maintenance stop.

With every component contributing to the successful flow of operations, maintenance becomes essential. When it came to carrying out the inspections of Subsea 7’s equipment, collaborating with Bosch Rexroth ensured that maintenance was carried out to the highest standards, in line with the original specification.

Alongside restoring equipment to deliver optimum levels of performance, doing so in a short turnaround time can help to maintain efficient operations by reducing downtime.

Improving uptime through efficient maintenance

During the maintenance operation, the Bosch Rexroth team repaired a total of eight A4VSG 1000cc units. With these components playing a crucial role in day-to-day operations, our team was able to adapt to client expectations by returning three units within 19 days, enabling production to commence sooner than initially anticipated.

Thanks to the capabilities within our in-house test facilities to check the pumps at their maximum flow and pressure, we were able to quickly understand the current health of each pump, as well as reset them to their original specification. While this process can sometimes be time-consuming, collaborating with the OEM is an essential step to ensuring the long-term performance of each component.

Throughout the reconditioning process, it is possible to understand the full history of individual components, enabling our expert team to identify if products have been repaired by companies other than the OEM, and if they had been assembled and installed incorrectly.

A global partner

Will Talbot, F&E Hydraulics Superintendent at Subsea 7, said: “When we needed a service partner to carry out essential maintenance on components of our vessel, we contacted Rexroth. As the OEM, we knew they had the core knowledge of each component to ensure they were running optimally. Alongside that knowledge, we were impressed by the global support Rexroth was able to provide, in this case co-ordinating activities between our operations in the UK, Holland, Belgium and Norway. With our business operating around the world, having a technical partner with essential knowledge of our equipment, as well as the physical manpower to react quickly to projects, is critical to the efficient running of our operations.”

With best-in-class service supplied by our team of experts, combined with our global reach, Rexroth has been able to deliver further value to Subsea 7 in other regions. This includes carrying out work on various components for lifeboat davit systems in the UAE, the smooth operation of which is essential when lifeboats need to be quickly deployed from a vessel. To facilitate this global support, Bosch Rexroth UK has provided a single point of contact for Subsea 7 – something which, in practice, has enabled them to simplify their supply chain and deliver services against a critical delivery schedule by relying on a global partner with a world-class technical knowledge.

Read the article online at:

You might also like

Serica Energy announce acquisition of interest in Greater Buchan area

Serica Energy has announced the completion of the acquisition by its wholly owned subsidiary, Serica Energy (UK) Limited, of 30% non-operated interests in the P2498 and P2170 licences (together the Greater Buchan Area (‘GBA’)) from Jersey Oil & Gas (‘JOG’).


Embed article link: (copy the HTML code below):


This article has been tagged under the following:

Upstream news Offshore news Subsea news