Case Studies: Offshore Platforms

Statoil Mariner PDQ Platform, UK North Sea

The Statoil Mariner Production, Drilling and Quarters (PDQ) Platform will be located in the North Sea and is expected to become operational in 2017. For this large platform, Spectrum were appointed at the detailed design stage as noise consultants for both the Topsides (engineered by CB&I) and Drilling (engineered by RDS/KCA Deutag) modules. Mariner is being constructed by DSME in Korea.

AGIP-KCO Kashagan Field D Island, Caspian Sea

The giant Kashagan oilfield in the Caspian sea is being developed at a cost of 75 billion $US. Spectrum was appointed by the operator AGIP KCO to undertake a comprehensive independent noise and vibration study at the early stages of the project after FEED. This photograph shows the offshore artificial islands and barges. Around the whole installation are huge man-made ice-protecting barriers which break up encroaching ice that builds up during the winter months in this hostile environment.

ADMA-OPCO Zakum West GPF Platform, UAE

Technip Abu Dhabi appointed Spectrum to carry out the FEED Noise and Vibration Study for new Gas Processing Facility (GPF) platform added to ADMA-OPCO Zakum West Super Complex, offshore UAE. This is one of many projects Spectrum has undertaken in UAE for Technip Paris and Technip Abu Dhabi both onshore and offshore.

Statoil Peregrino Field, Offshore Brazil

Spectrum were appointed by WorleyParsons on behalf of Statoil ASA to carry out a series of early project studies on a new wellhead platform (WHP) as part of phase II expansion of the Peregrino field. An initial Concept Noise and Vibration Study was followed by a series of more detailed studies, pre-FEED, looking at platform layout to minimise noise and vibration from main power generation plant.

Clair Ridge

Clair Ridge is the second development phase of the BP Clair Field, the largest undeveloped hydrocarbon resource on the UKCS, and RDS Oil were awarded the contract for engineering the Drilling Module. Noise and Vibration are major concerns on an offshore platform, and RDS instructed Spectrum to undertake the Noise and Vibration Study for the detailed design phase of the project on their behalf. Production is expected to launch in late 2017.

Statoil Aasta Hansteen Spar Platform, Norwegian North Sea

Spectrum were instructed by Technip USA to undertake the FEED and Detailed Acoustic Design phases for the Aasta Hansteen Spar Platform Hull, the first on the Norwegian Shelf and the largest in the world. A SPAR is a floating installation consisting of a vertical column moored to the seabed. Noise and Vibration studies involved consideration of machinery noise and vibration, structureborne noise, personnel noise exposure and PAGA system audibility, as required by Norsok Standards.

Statoil Bressay Field, UK North Sea

Spectrum were commissioned by WorleyParsons to carry out an initial Concept Noise and Vibration Assessment for this major Statoil ASA project for the UK North Sea sector. The work included identifying the risk associated with proposed layouts and preparing appropriate visualizations of the risk. The scope of further detailed noise and vibration studies to be carried out during the FEED and detailed design stages, were also developed.

Kanfa Aragon/Samsung Heavy Industries FPSO

Floating Production and Offloading (FPSO) vessels are a key component in many gas development projects. Spectrum were commissioned to undertake a FEED Noise Report for a series of FPSOs, the first which was destined to be used as part of the PNG Elk and Antelope field gas development project, New Guinea. Noise modelling of the topsides plant was undertaken along with the development of an enhanced noise mitigation strategy.

ConocoPhillips Jasmine Field UK North Sea

WorleyParsons appointed Spectrum to undertake a FEED Noise and Vibration Study for the Judy JRP Platform and the Jasmine WHP and LQ platforms, part of ConocoPhillips Jasmine Field development. The scope of the study was to establish the noise and vibration noise limits, predict airborne and structure borne noise levels and also predict vibration levels. We recommended outline mitigation measures to reduce excessive levels and identified hearing hazard areas.

Shell Cawthorne Channel Gas Gathering Project, Nigeria

Working in UAE with NAMA Mott MacDonald and Daewoo E & C Spectrum acted as noise consultant on all the barges and pumping stations, to Shell Petroleum Development (Nigeria) for the Cawthorne Channel Gas Gathering project. This project was initiated to reduce the energy waste from flaring of associated gas.