As with the other market areas we have an extensive range of skills and resources which allow us to offer an innovative and flexible approach to today’s cable project demands. In addition many of our innovations developed for shallow water cable burial can be applied to umbilicals and pipelines.
Alongside our experience with Oil & Gas, ETA’s expertise have been acquired from their background in the installation and maintenance of subsea cable in the traditional fields of telecom, or power cable projects as well as from their extensive involvement with offshore renewables.
A sample of ETA’s varied experience in the Offshore Oil & Gas market can be found below.
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ETA were contracted by system designer and main installer ABB to assist with Project and Technical Management. ETA’s work included: QA of subcontractor engineering and procedures; developments of procedures for handling termination during load, lay and platform pull; and the development of a mid-water survival system (MWSS) utilising temporary cable buoyancy to avoid the need to cut cable in sea conditions exceeding 4m Hs.
Field: Umbilical Installation
ETA were contracted by Jan de Nul to develop method statements and oversee the cable installation operations for a series of high precision pre-terminated umbilicals for the gas field.
Gathering System: Cable Links
Challenges to the cable lay included 16 pipeline crossings, the narrow navigable channel, and sparse survey information.
Mike Nichols, the ETA project manager, provided support from the bid stage through to completion. ETA also designed and built a custom lay spread for the MFK lay barge St Patrick. A team of 7 ETA personnel including operations superintendent and 6 technicians was provided to perform the cable lays and burial.
Fibre Optic Project
Services from ETA included: Improved cable path design, Modifications to the plough, Procurement of new linear cable engine including lay control and monitoring system, development of cable testing and repair capability, development of burial protection criteria, support during mobilisation, support during trials and initial period of installation.