Seabed subsidence caused by reservoir compaction is a common phenomenon occurring during oil and gas production. In the offshore environment it is monitored using GPS (Global Positioning System) receivers on surface installations such as production platforms. However, the area affected by seabed subsidence can extend away from this single point of measurement, especially when the reservoirs are produced using long horizontal wells. To fully map the subsiding area dedicated seabed surveys are required.

In absence of dedicated time-lapse seabed surveys we decided to use bathymetry data recorded during 3D and 4D seismic surveys over several fields in the Danish sector of the North Sea. Due to limited accuracy and sparse spatial resolution such data are rarely used for seabed bathymetry and subsidence measurements. However, by developing a dedicated processing workflow it has been possible to significantly improve the estimated accuracy of the subsidence calculation to 0.3m.

This extended abstract describes the data processing workflow, the results and their current utilization in geomechanics and reservoir management. It also discusses potential future utilization in other technical areas.


Article metrics loading...

Loading full text...

Full text loading...


  1. Zaske, J., Calvert, M., Herbert, I., Hickman, P., Micksch, U. & Roende, H.
    [2013] 4D Seismic as a tool to support well and reservoir management: Danish Chalk field examples. 83rd Annual International Meeting, SEG, Expanded Abstracts.
    [Google Scholar]
  2. International Hydrographic Organization, Intergovernmental Oceanographic Commission
    International Hydrographic Organization, Intergovernmental Oceanographic Commission, The IHO-IOC GEBCO Cook Book, IHO Publication B-11, Monaco, Dec.2016
    [Google Scholar]

Data & Media loading...

This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error