1887

Abstract

Summary

In complex foothills of Papua New Guinea, main prospective reservoirs are constituted by carbonate platforms difficult to delineate, even with high quality 2D seismic data. We propose a new and original approach for de-risking the structural interpretation by picking seismic reflections directly on shot points and therefore extracting the most significant events. Most reflectors are illuminated only by a limited range of shots. This new type of seismic interpretation is further validated by fully elastic modeling to ensure that no unwanted wave mode (converted wave or multiple) has been selected. The picking provides noise free input data to the migration algorithm and produce a clearer structural image that reveals deeper reflectors.

Loading

Article metrics loading...

/content/papers/10.3997/2214-4609.201801317
2018-06-11
2024-04-24
Loading full text...

Full text loading...

References

  1. Bertini, F., Boëlle, J.L., Puntous, H., Estival, R, et al.
    [2017] METIS*, Rethinking geophysics to shed light in hard-to-access and blind foothills - A future revolution for upgrading E&P global performance?79th EAGE Conference & Exhibition, Workshop 12.
    [Google Scholar]
  2. Bitri, A., Rappin, D. and Marthelot, J.M.
    [1991] Shot gathers amplitude and frequency processing and fast prestack depth migration. Application to ECORS deep reflection seismic data. 53rd EAGE Conference & Exhibition, Extended Abstracts, P123.
    [Google Scholar]
  3. Gray, S.H., Cheadle, S. and Law, B.
    [2000] Depth model building by interactive manual tomography. SEG Technical Program Expanded Abstracts, 914–917.
    [Google Scholar]
  4. METIS team
    METIS team [2017] METIS, un projet R&D de géophysique globale (acquisition-traitement-imagerie-interpretation) en temps réel. Pour une meilleure cartographie et modelisation 3D des chaines de montagne, Geologues, 193, SGF, 31–35 (in French).
    [Google Scholar]
  5. Pivot, F. and Marthelot, J.M.
    [1996] 3D Geometry of deep reflectors from reflection times picked on shot gathers. 58th EAGE Conference & Exhibition, Extended Abstracts, P112.
    [Google Scholar]
  6. Puntous, H., Adler, F., Strobbia, C., Masini, E. and Calassou, S.
    [2018] Revisiting Pyrenean foothills structural imaging by seismic interpretation in the shot domain: case study from 2D ECORS, Aquitaine Basin, France. 80th EAGE Conference & Exhibition, Extended Abstracts, submitted.
    [Google Scholar]
  7. Siliqi, R.
    [1994] Development of the processing and interpretation of a 3D crustal scale seismic experiment in the pyrénées (ECORS 2.5D). Ph.D. thesis, Université Louis Pasteur, Strasbourg.
    [Google Scholar]
http://instance.metastore.ingenta.com/content/papers/10.3997/2214-4609.201801317
Loading
/content/papers/10.3997/2214-4609.201801317
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