Explosives Use in Decommissioning—Guide for Assessment of Risk (EDGAR): I Determination of Sound Pressure Levels for Open Water Blasts and Severance of Conductors and Piles from Below the Seabed

A simple underwater noise model suitable for use with explosives in the decommissioning of oil and gas subsea structures is introduced evaluated against data from five projects US. The performance compared to four existing models open water blasts, severance well conductors piles. Simulated received sound pressure levels were significantly correlated measurements all scenarios. maximum total error achieved between simulations was 3.5%, suggesting that predictions are accurate within 4% average measurement. low relative bias observed when measured values, only a small systematic underestimate (?1% measurement) most operations overestimate (1.34%) blasts.