Some results of seismic travel-time reflection tomography study

  • Pham The Hoang Ha Vietnam Petroleum Institute
  • Doan Huy Hien Vietnam Petroleum Institute
  • Ta Quang Minh Vietnam Petroleum Institute
  • Mai Thi Lua Vietnam Petroleum Institute
  • Nguyen Hoang Anh Vietnam Petroleum Institute
Keywords: Seismic signal processing, seismic reflection, ray tracing, velocity modelling, seismic tomography, tomographic inversion

Abstract

Velocity model is essential for seismic data processing as it plays an important role in migration processes as well as time depth  conversion. There are several techniques to reach that goal, among which tomographic inversion is an efficient one. As an upgrade version  of handpicked velocity analysis, the tomography technique is based on the reflection ray tracing and conjugate gradient method to  estimate an optimum velocity model and can create an initial high quality model for other intensive imaging and modelling module  such as reverse-time migration (RTM) and full-waveform inversion (FWI). For the mentioned benefit, we develop a seismic travel-time  reflection tomography (SeisT) module to study the accuracy of the approach along with building the technical capability in seismic  processing. The accuracy of the module has been tested by both synthetic and real seismic field data; the efficiency and the accuracy of  the model have been proven in terms of development method as well as field data application.

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Published
2022-01-24
How to Cite
Pham , T. H. H., Doan , H. H., Ta , Q. M., Mai, T. L., & Nguyen, H. A. (2022). Some results of seismic travel-time reflection tomography study. Petrovietnam Journal, 1, 36 - 48. Retrieved from http://tapchidaukhi.vn/index.php/TCDK/article/view/789
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Articles