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  • Field-wide installation of optical sensing technology yields multi-sensing benefits


    B. Smith, M. Hall, A. Franklin, E. S. Johansen and Ö. H. Ünalmis

    The adoption rate of Optical Sensing Technology (OST) for in-well permanent monitoring has accelerated dramatically since it was first introduced more than 10 years ago. A number of optical sensor types, including pressure, temperature, distributed temperature, seismic and flowmeters, have been commercialized. Although OST has a demonstrated track record and has gained industry acceptance, large-scale, field-wide commercial deployment has been slow. This article describes an example of field-wide OST deployment and explores initial results after 13 well completions. Multiple in-well sensors were installed in 27 wells of Buzzard Field in the North Sea, operated by Nexen Petroleum UK Ltd. Initial success shows satisfactory performance in all key areas, including data availability, delivery and post-processing. Since the introduction of fiber optic-based reservoir monitoring systems in 1993, the adoption rate has increased dramatically. Today, most of the common electronic-based measurements for in-well permanent reservoir monitoring have a commercial optical equivalent.

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