It appears that the world oceans are becoming more noisy, with potential detrimental effects on marine organisms. There is increasing focus on underwater sound from regulators, science and the public. Our industry has to demonstrate good knowledge on the noise we emit to the environment. Since May 2021 a subsea multiphase pump, located at the Vigdis Field, has been running to increase production to Snorre A. It is of interest to better understand the strength and the frequency of the noise the pump is emitting, how the sound propagates in the water and, if any, its impact on marine life. At the end of August 2021, the sound measurement campaign was conducted. The data were collected close to, and further away from, the pump and for different speeds. Those data were combined with the known field bathymetry in a sound propagation modelling tool. We now know better in what extend our activities contribute to increase noise in the oceans and how they impact marine life.

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