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One of the redevelopment options evaluated. |
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With field development in the North Sea at an all time high, Xodus is working with a number of operators to undertake field development planning activities in UKCS fields.
Deploying an integrated team to undertake assessment studies, Xodus Group has the capability to produce the optimum plan for the production of a given field.
One example of this is a conceptual screening study which Xodus recently completed for CNR International (UK) Ltd for the redevelopment of a major oil field in the North Sea. The study examined a spectrum of redevelopment concepts covering standalone platform facilities and subsea tie-back to an existing host platform.
Standalone concepts assessed included: full service platform; wellhead drilling platform; mini-TLP; semi-submersible; and FPSO for the subsea tie-back. The feasibility of adopting subsea processing technology was also considered, with the application of subsea separation and produced water re-injection, raw seawater injection and multiphase booster pumping being evaluated.
In order to develop these diverse concepts to a level that would facilitate meaningful option screening, Xodus Group deployed its broad multi-disciplinary capabilities integrating process, flow assurance, subsea, controls, structural, safety, environmental and materials engineering expertise.
When engineering development was sufficiently mature, the redevelopment concepts were screened against an agreed set of criteria based on key considerations of value to CNR, such as CAPEX, OPEX, technical risk, HSE impact and production interruption.
These results successfully enabled CNR to conduct a comparative economic assessment of the concepts with a view to using this, and the conclusions from the screening study, to identify the highest value redevelopment options to take forward to a more detailed phase of evaluation and definition as part of a concept select study.
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