Depth Imaging Enhancement Using Reverse Time Migration

S. Y.Moussavi Alashloo*, D. P. Ghosh, Y. Bashir, W. I.Wan Yusoff

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

3 Citations (Scopus)

Abstract

Imaging the subsurface with complex structures and steeply dipping salt boundaries is a challenging task in seismic exploration. Between two main categories of seismic migration, wavefield-continuation methods have been more successful than ray-based ones. Wavefield-continuation migration constructs source and reflection wavefields as a function of depth or time by directly solving one-way or two-way wave equations. Consequently, this technique has two benefits. First, compared to Kirchhoff migration, it does not use high-frequency approximation and can more accurately propagate wavefields in shallow depths. Secondly, it can naturally handle multi-paths or multi-arrivals. Reverse time migration (RTM) is a wavefield-continuation method which is accepted as the best migration method currently available for imaging complicated geology. The main objective of this research is to improve imaging of complex structures by utilizing the RTM technique. Two models, involving anticlines, faults, etc., are employed to test the technique. The imaging results demonstrated that the RTM method succeeded to image the flanks, remove noises and improve the resolution.

Original languageEnglish
Article number012017
JournalIOP Conference Series: Earth and Environmental Science
Volume88
Issue number1
DOIs
Publication statusPublished - 30 Oct 2017
Externally publishedYes
Event5th International Conferences on Geological, Geographical, Aerospaces and Earth Sciences 2017, AeroEarth 2017 - Kuta, Bali, Indonesia
Duration: 20 May 201721 May 2017

Bibliographical note

Publisher Copyright:
© Published under licence by IOP Publishing Ltd.

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