Geophysical survey is used to identify resources without disturbing or sampling surfaces. This is a ground-based physical sensing technique that detects geological and other substances below the surface, and facilitates the production of a map or detailed image of a particular area.
Methods of Geophysical/ Hydrographic survey
A geophysical survey is essential for surveying any areas that are culturally sensitive and are proposed drilling sites. High quality mapping and interpretations [including 3D], it also undertakes a wide range of tasks, including: Bathymetric charting, side scan sonar, Sub-bottom profiler, Multibeam and Magnetometers we can deliver quality data of the seabed surface and shallow subsurface that can be used to effectively used in engineering and project planning.
Location and detection of man-made artifacts including debris, shipwrecks, ordnance and sub-sea structures. Profiling of shallow geological features and structures to assist with engineering studies and facility design. Sea-floor and sub-surface geotechnical assessment. Location and detection of geo-hazards such as shallow gas, hydrates, unstable sea floors, active geological zones and potential shallow water flow-zones to enable exploration drilling, facilities installation and production operations to be performed safely and efficiently.
We deliver the legal measurement data you need to determine property boundaries or create new property by dividing or merging existing one. We measure and collect data for cemetery maps and maps of above-ground and underground utility cables and pipes. Maps are available in 2D and 3D and include GIS attributes and related information.
Using subsea scanning sonar equipment and positioning to detect seabed surface debris and possible prior spud-can penetration sites can reduce the risk of damage to Jack-up MODU legs. This can save expensive time in problems with positioning these Jack-ups next to existing platforms and installations.
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