Technical Terms

The following glossary of technical terms contains terms used in this Prospectus as they relate to the businesses of our Group. As such, these terms and their meanings may not always correspond to standard industry meaning or usage of these terms:
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FEA American Bureau of Shipping, a U.S classification society which has established rules and regulations for the classification of seagoing vessels or equipment
Anchor handling tug, used to support offshore barges in laying out their anchors and retrieving their anchors from location to location, serve and standby duty for the barges and able to tow them away in case of emergency. A prime mover for the barges
Anchor handling tug and supply, used to provide logistic support to offshore oil rigs, production platforms and other offshore installations, to tow rigs, barges and mobile structures from location to location as well as making sure their anchor are well placed in suited position
Brake horsepower, which is the amount of power generated by a motor without taking into consideration any amount of the various auxiliary components that may slow down the actual speed of the motor
Pulling capacity of the AHTS/AHT vessel towing and/or working winch
An O&G field that has previously been developed
Computer aided design
Computer aided manufacturing
Computational fluid dynamics
Central processing platform
Derrick equipment set, which is installed on a platform to enable drilling work
Dynamic positioning, a computer-controlled system to automatically maintain a vessel’s position and heading by using its propellers and thrusters. The dynamic positioning level (e.g. DP2, DP3) indicates the degree of redundancy built into the system
Engineering, procurement, construction, used to describe a contract between a company and a contractor to perform detailed engineering, procurement of materials and equipments, and construction of structures
Engineering, procurement, construction and commissioning
Engineering, procurement, installation and commissioning
Engineering, procurement, construction, installation and commissioning, used to describe a contract between a company and contractor to perform detailed engineering, procurement of materials, construction of structures, transport to site, installation and commissioning (preparatory activities to commence operations)
Finite element analysis
greenfield HP HSE HSSE HUC IPF IRM jacket
LNG Front end engineering design, which includes all engineering design and other activities for an engineering project. It starts from the project brief and works through to the visualisation, conceptualisation and definition stages. It involves translating the customer’s needs into a conceptual design and then a basic design
Floating production system, a collective term for all types of floating production units, including FPSOs, semi-submersibles, TLPs, SPARs and FPSOs. Semi-submersibles, TLPs and SPARs are normally deployed in deepwater and locations with pipeline infrastructure, since they typically do not have storage facilities
Floating, production, storage and off-loading system, an offshore system comprising a large tanker or similar vessel equipped with a high capacity production facility. FPSOs are normally moored at the bow to the seabed to maintain a geo-stationary position, and serve as a fixed point for risers to connect subsea wellheads to on-board processing/production, storage and offloading system. Produced oil is periodically offloaded to smaller shuttle tankers, which transport the oil to onshore facilities for further processing
Floating, storage and offloading, a vessel that stores crude oil produced from a fixed or floating platform
The physics of the earth and its environment. It provides information on the earth’s internal structure and composition, as well as the contour and structure of the seabed. The information is used to analyse potential petroleum reservoir and mineral deposits and to assist in determining the location to install production structures and pipelines. It is also used to detect and mitigate natural hazards such as shallow gas
A branch of engineering concerned with the behavior of earth material. It provides information on physical/mechanical and chemical properties of the soil and rock such as the type of components, strength and porosity. The information is needed to design structure to determine the ability of the soil to handle the structures and subsea equipment
An O&G field that has not been developed
Health, safety and environment
Health, safety, security and environment
Hook-up and commissioning
Installation of pipelines and facilities
Inspection, repair and maintenance
Steel structures partly submerged that support the above water or Topside of an offshore platform
Lowest astronomical tide, which is the height of the lowest tidal water level
Liquified natural gas
xix manifold
mt OHSAS offshore platform
POMS platform PLEM PLET process skid system
PSC riser
Seabed structure which gathers hydrocarbon products from other seabed structures, primarily satellite wells, which are then transported back to the tieback host throl\gh flowlines
Any or various modular sets or equipment designed to perform one or
more functions and be installed on an offshore platform Mobile offshore production unit, a movable and transportable facility that is used to perform offshore production. Basic types of mobile units include bottom-supported units and floating units
Meta-optimising semantic evolutionary search Multi-purpose offshore support vessel Module support frame, which is attached to the jacket to support the
footprint area of the topside modules and transfer the topside weight evenly into the jacket structure Metric tonne
Occupational health and safety assessment series A structure located in a marine environment that houses workers and equipment required to drill and/or extract O&G from underground reserves. Offshore platforms typically comprise two parts, the Topside and the jacket. Various modules are installed on the Topside
Plant design and management system Offshore structure that is fixed to the seabed Pipeline end manifold Pipeline end termination Any type of equipment or system that is housed on a transportable mini
platform Production sharing contract A pipe or assembly of pipes used to transfer product fluids from the
seabed to the surface facilities or to transfer injection fluids, control fluids or lift gas from the surface facilities and the seabed A remotely operated vehicle, which is a tethered underwater vehicle Risk service contract Structural analysis computer system Single buoy mooring Steel catenary risers Saturation diving systems Self-erecting tender rigs
st subsea services
TRCF Turret
UCUA A type of subsea component
A vertical, cylindrical structure with the majority of the hull underwater. The deep hull of spar lowers its centre of gravity, making the structure more stable. Also known as the deep draught caisson vessel
Short tonne
Offshore diving and underwater related services for inspection, repair and maintenance of structures, pipelines and risers and for the construction of underwater facilities
Structure that supports Topsides and normally contains space for storage and well-control equipment
Subsea, umbilicals, risers and flowlines, refers to the infrastructure required for O&G production in the offshore environment and found between the seabed and the waterline
Tension leg platform, comprising a deck on a pontoon column structure moored to the seabed with steel tendons. The deck supports production processing facilities
The portion of any offshore platform above water which includes among others, the process and production facilities, liVing quarters and modules
Total recordable case frequency
Rotating structures used with FPSOs to attach lines to the unit, allowing the lines to remain connected while the unit moves. Turrets may be internal or external to the FPSO
Unsafe condition unsafe act
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