1887
  1. Home
  2. Conferences
  3. Conference Proceedings
  4. 81st EAGE Conference and Exhibition 2019
  5. Conference paper

Abstract

Summary

Sedimentary basins with prospectivity potential beneath volcanic intrusions are common in many parts of the world. However, the rugosity and high-impedance contrast of the basalt create significant challenges in imaging sub-basalt structures. Two-way wave equation techniques may be employed to address the complex multipathing that occurs during propagation of the wavefield through basalt. This is illustrated by the successful application of common offset RTM (COR) tomography and least squares RTM to a 3D data set from northwest Europe. The use of these techniques has significantly improved the imaging and velocity model within and beneath the basalt.

© EAGE Publications BV
Loading

Article metrics loading...

/content/papers/10.3997/2214-4609.201901187
2019-06-03
2024-04-25

  • From This Site

    /content/papers/10.3997/2214-4609.201901187
    dcterms_title,dcterms_subject,pub_keyword
    -contentType:Journal -contentType:Contributor -contentType:Concept -contentType:Institution
    10
    5
Loading full text...

Full text loading...

References

  1. Gallagher, J.W., Dromgoole, P.
    [2008] Seeing below the basalt – offshore Faroes. Geophysical Prospecting, 56, 33–45.
     [Google Scholar]
  2. Hilburn, G., He, Y., Zengjia, Y., Sherrill, F.
    [2014] High-resolution tomographic inversion with image-guided preconditioning and offset-dependent picking. 84th Annual International Meeting, SEG, Expanded Abstracts, 4768–4772.
     [Google Scholar]
  3. Jupp, R., Syed, Y., Grimshaw, M., Bell, T., Micklewright, I., Jones, N., Gallagher, J.W., Dromgoole, P., Brenne, E.O.
    [2005] A 3D Seismic Depth-Processing Toolkit For Sub-Basalt Imaging. 67th EAGE Conference & Exhibition, Extended Abstracts, P501.
     [Google Scholar]
  4. Rodriguez, G, and Liu, S.
    [2016] Reducing subsalt velocity uncertainties using common offset RTM gathers (COR). 86th Annual International Meeting, SEG, Expanded Abstracts, 5259–5263.
     [Google Scholar]
  5. Spjuth, C., Sabel, P.B., Foss, S.K., Dromgoole, P., Friedrich, C., Herredsvela, J., Day, A., Dhelie, P.E., Hegna, S., Hoy, T., Koch, K.
    [2012] Broadband Seismic for Sub-basalt Exploration. 74th EAGE Conference & Exhibition, Extended Abstracts, B036.
     [Google Scholar]
  6. Whiteside, W., Yeh, A., Wang, B.
    [2012] Directional Imaging Stack (DIS) for Shot Based Pre-stack Depth Migrations. 82nd Annual International Meeting, SEG, Expanded Abstracts, 1–5.
     [Google Scholar]
  7. Zeng, C., DongS., Wu, Z., Ji, J., Armentrout, S., and Wang, B.
    [2015] Adaptive least-squares RTM and application to Freedom WAZ subsalt imaging. 85th Annual International Meeting, SEG, Expanded Abstracts, 4059–4060.
     [Google Scholar]
http://instance.metastore.ingenta.com/content/papers/10.3997/2214-4609.201901187
Loading
Sub-Basalt Imaging in the Norwegian Sea Using Common-Offset RTM Tomography and Least Squares Reverse Time Migration
Conference Proceedings 2019, 1 (2019); https://doi.org/10.3997/2214-4609.201901187
/content/papers/10.3997/2214-4609.201901187
/content/papers/10.3997/2214-4609.201901187
Loading

Data & Media loading...

Most Cited This Month Most Cited RSS feed

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