Ge Oil & Gas UK Limited

Vetco Gray Controls Limited

Baker Hughes Energy Technology UK Limited

Vecto Gray Controls Limited

Raymond Phillips

Nicholas Josep Ellson

Parag Vyas

Axel Busboom

Anthony Jason Vangasse

Anthony Vangasse

Dean Arnison

A method and apparatus are disclosed for reducing flow induced vibration in at least one subsea structure. The method comprises the steps of, via at least one subsea acoustic sensor (), detecting at least one characteristic associated with acoustic energy in sea water proximate to the sensor (), responsive to the detected characteristic, varying at least one operational parameter of a fluid flowing along a fluid flow pathway associated with a pipe member ().

Flow induced vibration reduction

A christmas tree assembly for a subsea hydrocarbon extraction facility, the christmas tree assembly includes a fluid pipeline and a sensor assembly comprising a plurality of sensors configured to monitor a plurality of properties relating to hydrocarbon fluid flow through the fluid pipeline. The sensor assembly includes a differential pressure sensor that is disposed at one or more of across a choke, around a bend or restriction in the pipeline or a dedicated flow restrictor integrated within the pipeline, and a bulk density sensor that is disposed in one or more of a blind T, before or after a choke or in an upwards section of the flow pipeline.

Monitoring hydrocarbon fluid flow

A method of monitoring a plurality of properties relating to a hydrocarbon fluid flow through a pipeline at a tree for a subsea hydrocarbon extraction facility, the method comprising locating a plurality of sensors at or near a position which is optimum for monitoring the at least one of the plurality of properties in regard to the configuration of the pipeline, the sensors being configured to monitor at least one of the plurality of properties.

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Bristol, United Kingdom

Raymond Phillips