Production from North Rankin A platform (NRA) aims to meet the objective of supplying contract gas/LNG whilst maximising the condensate yield. This paper describes current efforts to increase production of selected wells through an extension of tubing flow velocity limits. By doing so, condensate rich wells can be produced preferentially at higher rates and overall flexibility between wells with regards to maintaining contractual gas production can be improved.

Arguments used to define a new limit to tubing flow velocity are presented together with the agreed basis for allowable sand production. Also discussed are the monitoring practices undertaken to ensure a long term field trial is completed safely. Here, particular emphasis was placed on proving the reliability of sand monitoring by performing field comparison trials of available systems prior to the commencement of the high rate trial.

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