The Nelson field is located 120kms offshore from Aberdeen in the Central North Sea. It is an important asset for Shell UK in the North Sea. This paper highlights the important steps that Shell UK is taking towards reducing its oil to sea discharge and meet compliance with OSPAR regulations. The heavily corroded state of the Nelson water injectors posed a major challenge towards successfully recovering the slot and executing a workover, which would allow produced water to be re-injected into the reservoir instead of being discharged to the sea.

This paper details the work scope, the plans and execution of the workover. It highlights the challenges that were faced by the team to deliver a well capable of produced water and seawater injection. The paper details the final results obtained from the successful campaign on the Nelson platform.

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