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Abstract

Whole-field subsidence and gravity monitoring is a well-proven, cost-efficient technology, with many field cases demonstrating both the high accuracies obtained and the value of the data for improved reservoir management. Seafloor subsidence and 4D gravimetric data are acquired with a small cost compared to seismic data. However, workflows for properly taking advantage of the information that lies in these data and their range of applicability are in general less widely known that for more conventional datasets. This abstract introduces first the principles behind offshore subsidence and 4D gravity monitoring. It then describes some field cases from the Norwegian Continental shelf (NCS) in which subsidence and 4D gravity data have been integrated into the field management workflow for production optimization and enhanced recovery. Finally, new developments towards making the technology even more cost efficient and the added value that can be expected as a consequence of these improvements are discussed.

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/content/papers/10.3997/2214-4609.201700028
2017-03-06
2020-07-04
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http://instance.metastore.ingenta.com/content/papers/10.3997/2214-4609.201700028
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