3D High-Resolution Geophysical Surveys: Towed System Designed and Developed to Fill in Caps In 2D Data for Surveying Offshore Structures

摘要

High-resolution geophysical surveys are used to identify potential marine subsurface hazards early and reduce risk from the placement of fixed and anchored installations on the seabed. In the geophysical industry, they are used to identify potentially harmful anomalies, such as shallow gas pockets. These features are either too small or too shallow to be effectively imaged by exploration seismic surveys. While their resolution is sufficient, conventional 2D high-resolution surveys can potentially miss small features due to the data missing between acquisition grid lines. Recently, high-resolution surveys have been proposed as a method to monitor the overburden of producing oil and gas reservoirs. Offshore developments, such as wind farms, have presented other applications for this technique.