Riser and J-tube FEED

The problem Our client was undertaking a project to increase the production from one of its existing platforms in the North Sea by installing an additional platform and expanding the existing re-injection facilities. We were asked to complete the front end engineering design (FEED) for eight 6-inch rigid risers and for two j-tubes to allow …

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Dynamic riser concept design

The scope Our client was engaged on the field development of a prospect within the Norwegian Continental Shelf. The concepts assessed included a semi-submersible floating production unit and a spread-moored FPSO. For each facility tie-back concept, the potential riser configurations and performance were to be assessed and optimised. The solution The semi-submersible concept was reviewed …

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PLEM conceptual design

Overview We have been supporting a construction contractor on project work for over a decade. In 2013, our client began preparing a tender for the design of a 24” pipeline for a major operator. As part of this tender, our client commissioned our team to conceptually design a pipeline end manifold (PLEM), to tie-in three …

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Installation analysis for array cables

Scope of work Our client asked us to perform a comprehensive installation analysis for all the subsea array cables at a proposed offshore windfarm in the North Sea. The scope included determining the following: The limiting sea states for installation The minimum bend radius to maintain cable integrity during installation The maximum tension and compression …

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