1887
PDF

Abstract

Summary

Octio has installed a permanent monitoring system at a waste injection site at the Oseberg field on the Norwegian continental shelf. This system comprises a small ocean-bottom seismic array of 4C stations, designed for both passive monitoring of microseismic events and active seismic surveys (see and ). The system was designed and installed in a Demo 2000 project supported by the Research Council of Norway and Statoil, and has provided real time data since its installation in 2013. The results from the first year of monitoring show that the system is able to characterize different passive energy sources from sub-hertz up to Nyquist frequency. These passive sources include weak regional earthquakes (M < 4.5) and microseisms from ocean wave oscillation (see ). During the summer 2014 a 4D baseline active survey was successfully conducted. The Oseberg installation is an example where a system is dedicated to injection monitoring over a limited area. The system will provide early warning for caprock integrity issues using passive and microseismic monitoring.

Loading

Article metrics loading...

/content/papers/10.3997/2214-4609.201411976
2015-03-16
2024-03-29
Loading full text...

Full text loading...

/deliver/fulltext/2214-4609/2015/oslo2015/Tu_P05.html?itemId=/content/papers/10.3997/2214-4609.201411976&mimeType=html&fmt=ahah

References

  1. Lindgård, J.E., and Matveeva, T.
    , 2013, Utilizing PRM systems for injection monitoring, EAGE PRM workshop Stavanger, Extended Abstract
    [Google Scholar]
  2. Løvheim, L.
    , 2013, Subsea Wireless Technology Improve the Value Proposition for Permanent Reservoir Monitoring, EAGE PRM workshop Stavanger, Extended Abstract
    [Google Scholar]
  3. L.Bjerrum, T.Matveeva, J.E.Lindgård, H.I.Rutledal, A.C.S.Yde
    , 2014, Comparison of noise characteristics on an un-trenched and trenched cable deployed in the north sea for a PRM system,’ 14 EAGE Conference paper.
    [Google Scholar]
http://instance.metastore.ingenta.com/content/papers/10.3997/2214-4609.201411976
Loading
/content/papers/10.3997/2214-4609.201411976
Loading

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