1887

Abstract

Summary

A review and analysis of post-stack time-lapse time-shifts has been carried out that covers published literature supplemented by in-house datasets available to the authors. From these data conclusions are drawn regarding the effectiveness of post-stack time-shifts for overburden and reservoir monitoring. Time-shift data are classified into those originating from geomechanical effects and those due to fluid saturation changes. A variety of field examples are shown that display the range and magnitude of variation in each class. The underlying physical mechanisms creating these time-shifts are then described, and linked to a series of generic and field-specific rock physics calculations that accurately predict their magnitudes. Conclusions are drawn regarding the reliability of this attribute for monitoring purposes, and the extent to which further research development is required.

Loading

Article metrics loading...

/content/papers/10.3997/2214-4609.201801287
2018-06-11
2024-04-19
Loading full text...

Full text loading...

References

  1. Amini, H. and MacBeth, C.
    [2015] Calibration of rock-stress sensitivity using 4D seismic data. 77th EAGE Conference & Exhibition, Madrid, Spain, Expanded Abstracts, Th P6 14.
    [Google Scholar]
  2. BrainJ., LassagneT., DarnetM. and van Loevezijn, P.
    [2017] Unlocking 4D seismic technology to maximize recovery from the pre-salt Rotliegend gas fields of the Southern North Sea, 8th Petroleum Geology Conference series, London, UK, Expanded Abstracts, 1–7.
    [Google Scholar]
  3. FalahatR., ShamsA. and MacBeth, C.
    [2010] Towards quantitative evaluation of gas injection using time-lapse seismic data. Geophysical Prospecting.59, 2, 310–322.
    [Google Scholar]
  4. FalahatR., ObidegwuD., ShamsA. and MacBeth, C.
    [2014] The interpretation of amplitude changes in 4D seismic data arising from gas exsolution and dissolution, Petroleum Geoscience, 20, 303–320.
    [Google Scholar]
  5. FjaerE., HoltR.M., HorsrudP., RaaenA.M. and Risnes, R.
    [2008] Petroleum Related Rock Mechanics, 2nd Edition, Elsevier Science.
    [Google Scholar]
  6. HatchellP. J. and Bourne, S.J.
    [2005] Rocks under strain: Strain-induced time-lapse time shifts are observed for depleting reservoirs. The Leading Edge, 24, 1222–1225.
    [Google Scholar]
  7. OmoformaV. and MacBeth, C.
    [2016] Quantification of reservoir pressure-sensitivity using multiple monitor 4D seismic data, 78th EAGE Conference, Vienna, Expanded Abstracts, Th LHR2 04.
    [Google Scholar]
  8. Røste, T. and Ke, G.
    [2017] Overburden 4D time shifts – Indicating undrained areas and fault transmissibility in the reservoir, The Leading Edge, 36, 423–430.
    [Google Scholar]
  9. SantosJ.M.C., DavolioA., MacBethC. and Schiozer, D.
    [2016] 4D seismic interpretation of the Norne field – a semi-quantitative approach, 78th EAGE Conference and Exhibition, Vienna, Austria, Expanded Abstracts, Th LHR2 02.
    [Google Scholar]
http://instance.metastore.ingenta.com/content/papers/10.3997/2214-4609.201801287
Loading
/content/papers/10.3997/2214-4609.201801287
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