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Journal of Mining and Environment، جلد ۸، شماره ۴، صفحات ۵۷۳-۵۷۸
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عنوان انگلیسی An improvement in RTM method to image steep dip petroleum bearing structures and its superiority to other methods
چکیده انگلیسی مقاله In this paper, first the limitations of the ray-based method and the one-way wave-field extrapolation migration (WEM) in imaging steeply dipping structures are discussed by some examples. Then a new method of the reverse time migration (RTM), used in imaging such complex structures is presented. The proposed method uses a new wave-field extrapolator called the Leapfrog-Rapid Expansion Method (L-REM) for wave-field extrapolation. This improved method also includes a new imaging condition based on Poynting vector for wave-field separation and calculating the reflection angles. Afterwards, the results obtained for the application of the new RTM method are compared with those obtained by the harmonic-source method as a delay shot or plane wave RTM. Finally, the efficiency of these imaging methods is tested using the BP 2004 2D seismic dataset. The results obtained indicate the superiority of the presented RTM method in imaging such steep dip structures in comparison with the other imaging procedures.
کلیدواژه‌های انگلیسی مقاله Kirchhoff and WEM Migration, Harmonic Source, L-REM, RTM
نویسندگان مقاله f moradpouri |
school of mining, petroleum amp; geophysics engineering, shahrood university of technology, shahrood, iran
سازمان اصلی تایید شده: دانشگاه صنعتی شاهرود (Shahrood university of technology)

a مرادزاده |
school of mining engineering, college of engineering, university of tehran, tehran, iran
سازمان اصلی تایید شده: دانشگاه تهران (Tehran university)

r cruz pestana | cruz pestana
center for research in geophysics and geology cpgg , federal university of bahia ufba , salvador, brazil

m سلیمانی منفرد | soleimani monfared
school of mining, petroleum amp; geophysics engineering, shahrood university of technology, shahrood, iran
سازمان اصلی تایید شده: دانشگاه صنعتی شاهرود (Shahrood university of technology)

نشانی اینترنتی http://jme.shahroodut.ac.ir/article_635_908e10725a1be4bf3add8141e31a320f.pdf
فایل مقاله اشکال در دسترسی به فایل - ./files/site1/rds_journals/496/article-496-485367.pdf
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زبان مقاله منتشر شده en
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