1887

Abstract

Summary

Prestack scaling is an essential step which is used to correct the amplitudes of seismic reflection data as part of quantitative interpretation workflows such that they honour the background AVO behaviour. The resulting scalers are fed into prestack seismic inversion algorithms to yield better results. Prestack scaling analysis is often performed in the reflectivity domain, however, we propose an algorithm to optimise these scalers further by defining an optimisation engine based on minimising the misfit between measured and inverted acoustic and shear impedances along selected wells. Also, we add constraints to avoid unstable solutions due to possible local minima. In this paper, we show two examples of this algorithm; a synthetic example which shows how the technique should work and a real dataset example where we compare the inversion results before and after amplitude scaling optimisation.

Loading

Article metrics loading...

/content/papers/10.3997/2214-4609.201800995
2018-06-11
2024-03-29
Loading full text...

Full text loading...

References

  1. Bond, C. E., Lunn, R. J., Shipton, Z. K. and Lunn, A. D.
    [2012] What makes an expert effective at interpreting seismic images?Geology, 40(1), 75–78.
    [Google Scholar]
  2. Cunningham, A.D. and Droxler, A.W.
    [2000] 12. Synthetic seismogram generation and seismic facies to core lithology correlation for sites 998, 1000, and 10011. Proceedings of the Ocean Drilling Program: Scientific results. The Program, 165(1), 205.
    [Google Scholar]
  3. Davis, O.
    [2011]. Improved Reservoir Management Using 4D Seismic at Enfield Oil Development, Western Australia. EAGE/SPE Joint Workshop-Closing the Loop: Reservoir Simulation and Geophysical Measurements. Istanbul, Turkey, 4–6 April 2011.
    [Google Scholar]
  4. Nelder, J. and Mead, R.
    [1965] A simplex method for function minimization. The computer journal, 4(7), 308–313.
    [Google Scholar]
  5. Naeini, E., Hoeber, H., Poole, G., Büker, F., Van Schaack, M. and Sandvoll, M.B.
    [2010] Simultaneous Multi-Vintage Multi-Parameter Time-lapse Matching. 72nd EAGE Conference and Exhibition, Expanded Abstract, Barcelona, Spain, 38(B).
    [Google Scholar]
  6. Vargas-Meleza, L., Megchun, J. and Vazquez, G.
    [2004] Petrophysical properties estimation by integrating AVO, seismic inversion and multiattribute analysis in a 3-D volume of Playuela. Veracruz: AAPG international Conference, 24–27.
    [Google Scholar]
http://instance.metastore.ingenta.com/content/papers/10.3997/2214-4609.201800995
Loading
/content/papers/10.3997/2214-4609.201800995
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