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Number 15 (2016)

Error Budget Analysis for surface and underwater survey system

September 22, 2017
May 9, 2017


For the installation of subsea infrastructures (pipelines, subsea wells, etc.) required for the extraction, storage and supply of hydrocarbon resources, the oil and gas company TOTAL regularly contracts hydrographic survey companies to provide positioning and hydrographic survey services. These companies mainly use two types of systems for these operations: surface and underwater survey systems. The error budget estimation identifies the parameters which affect the acquired data quality and to check if the measurement uncertainty of the sounding position meets the minimum survey specifications described by International Hydrographic Organization (IHO) as adopted by TOTAL. This paper gives an in-depth analysis on the error budget estimation of surface and underwater survey systems; describes briefly these state-of-the-art systems and proposes an estimation method of error budget of these systems. This work also contributes to improve bathymetric sounding position equations.