1887

Abstract

Summary

We invent and test a new system to acquire seismic data using continuous fiber-optic DAS cable deployed in a grid of shallow vertical holes. This system allows simultaneous land near-surface characterization and subsurface imaging in a cost-efficient manner. With smart DAS upholes we achieve perfect calibration of near-surface complexities and record cleaner seismic data. Connecting multiple upholes with a single fiber enables efficient acquisition of seismic surveys with buried vertical arrays, which can provide images of the deeper subsurface similar to surface seismic, but with improved structural control, since they bypass most of the near-surface complexities. We have performed successful 2D field testing of such a system on one of the onshore fields in Saudi Arabia. The new system can deliver an on-demand standalone survey that simultaneously characterizes the near surface, performs deep reflection imaging of oil and gas targets for exploration, and can be used for development or reservoir monitoring. Such a system is long overdue for land regions that have complex near-surface conditions.

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/content/papers/10.3997/2214-4609.201801626
2018-06-11
2024-03-28
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References

  1. Al-Ali, M. N., and Verschuur, D. J.
    , 2006, An integrated method for resolving the seismic complex near-surface problem: Geophysical Prospecting: 54, 739–750.
    [Google Scholar]
  2. Bakulin, A., R.Burnstad, M.Jervis, and P.Kelamis
    , 2012. Evaluating Permanent Seismic Monitoring with Shallow Buried Sensors in a Desert Environment: 82nd Annual International Meeting, SEG, Expanded Abstracts, 1–5.
    [Google Scholar]
  3. Bakulin, A., M.Jervis, D.Colombo, C.Tsingas, and Y.Luo
    , 2015, Bring geophysics closer to the reservoir — A new paradigm in reservoir characterization and monitoring: 85th Annual International Meeting, SEG, Expanded Abstracts, 4822–4826, http://dx.doi.org/10.1190/segam2015-5849607.1
    [Google Scholar]
  4. Cox, M.
    , 1999, Static Corrections for Seismic Reflection Surveys: Geophysical references, 9, Society of Exploration Geophysics.
    [Google Scholar]
  5. Fuller, B. N., and J. M., Sterling
    , 2010, Method for processing borehole seismic data, Patent, US 7746726 B2.
    [Google Scholar]
  6. Ikelle, L.T., and R.J.Wilson
    , 1998, Potential impacts of vertical cable (VC): The Leading Edge, 1154–1157.
    [Google Scholar]
  7. Miller, D., T.Parker, S.Kashikar, M.Todorov, and T.Bostick
    , 2012, Vertical Seismic Profiling Using a Fibre-optic Cable as a Distributed Acoustic Sensor: 74th EAGE Conference and Exhibition, Y004.
    [Google Scholar]
  8. Nosjean, N., F.Hanot, J.P.Gruffeille, and F.Miquelis
    , 2017, Statics: from imaging to interpretation pitfalls and an efficient way to overcome them: First Break, 35, 71–78.
    [Google Scholar]
  9. Schuster, G. T.
    , 2009, Seismic Interferometry, Cambridge University Press.
    [Google Scholar]
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