GL Noble Denton has performed a variety of work on production storage units such as FPSOs, FSOs, tension leg platforms, production semi-submersibles, spars, jack-ups and other configurations.
Mobile Offshore Production Units (MOPU)
Working closely with vessel and unit owners, we contribute design expertise for both new-build and converted units, from concept level through to detail design and including:
- Naval architecture
- Dynamic positioning
- Machinery and piping
- Electrical and instrumentation
- Topsides systems
- Mooring and risers
In addition, we have extensive in-house operational knowledge and this supports the efficient development of the design.
Project delay and cost overruns are mostly likely to occur during the construction or conversion period. To avoid or minimise this problem, GL Noble Denton provides specialist teams to cover most project engineering deliverables, bringing hands-on, practical shipyard experience in helping clients save time and money through:
- Preparation of procurement specifications
- Negotiation and award of vendor contracts
- Support functions such as document control, planning and scheduling
- Installation equipment performance analysis
- System integration testing and trialling
GL Noble Denton’s outstanding reputation for innovative offshore engineering ensures the company is at the forefront of MOPU installation work. Ongoing activities include:
- Pre-installation of moorings
- Hook-up of the MOPU
- Installation of risers and other subsea equipment
- Site commissioning activities
GL Noble Denton does not own construction vessels or similar equipment, thus we are free to develop independent, effective installation solutions. Many innovative procedures are pioneered by GL Noble Denton engineers, including novel anchor-tensioning systems, unique TLP connection processes, and the use of marine simulators to identify ‘what if’ scenarios.
If a mobile unit such as an FPSO is scheduled to be moored in one place for an extended period of time, it must be capable of enduring extreme environmental conditions, very different to those encountered by other, more mobile units and vessels. Being placed on station for extended periods can lead to poor operational performance. GL Noble Denton carries out on-site repair and modification work, such as the replacement of damaged mooring lines, alongside the unit’s operational personnel.
In addition, we undertake unit removal and replacement operations for MOPUs, covering both the hull and associated moorings.
Exploration and production is increasingly taking place in remote areas, in deep waters and economically marginal fields, and requires innovative ways of reducing emissions or producing and storing liquefied natural gas (LNG). The technical potential in the floating production and storage of crude oil and gas has some way to go, with additional drilling capability and gas flaring just two recent innovations which GL Noble Denton has been closely involved with.