Velocity analysis for VSP data using multiples

Denis Nasyrov, Denis Kiyashchenko, Yurii Kiselev, Boris Kashtan, Vladimir Troyan

Результат исследований: Публикации в книгах, отчётах, сборниках, трудах конференцийстатья в сборнике материалов конференции

Аннотация

The quality of the subsurface images obtained using VSP data strongly depends on the velocity model used for migration. The velocity model derived from surface seismic is often not accurate enough for VSP imaging and there is a need for its improvement. We propose the method for updating of velocities using VSP data. The main idea is to use the images of the subsurface obtained using different types of waves: primary reflections and surface-related multiples. If the background velocity is correct, then these images will be similar, and they will not coincide, if the velocity model is erroneous. We develop the algorithm of velocity updating based on this criterion. The proposed method allows us to retrieve the velocity below the borehole receivers. This is complementary to first break VSP travel time tomography, which helps to retrieve velocity only above the receivers.

Язык оригиналаанглийский
Название основной публикации78th Society of Exploration Geophysicists International Exposition and Annual Meeting, SEG 2008
ИздательSociety of Exploration Geophysicists
Страницы3420-3424
Число страниц5
ISBN (печатное издание)9781605607856
СостояниеОпубликовано - 1 янв 2018
Событие78th Society of Exploration Geophysicists International Exposition and Annual Meeting, SEG 2008 - Las Vegas, Соединенные Штаты Америки
Продолжительность: 9 ноя 200814 ноя 2008

Серия публикаций

Название78th Society of Exploration Geophysicists International Exposition and Annual Meeting, SEG 2008

Конференция

Конференция78th Society of Exploration Geophysicists International Exposition and Annual Meeting, SEG 2008
СтранаСоединенные Штаты Америки
ГородLas Vegas
Период9/11/0814/11/08

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Предметные области Scopus

  • Геофизика

Цитировать

Nasyrov, D., Kiyashchenko, D., Kiselev, Y., Kashtan, B., & Troyan, V. (2018). Velocity analysis for VSP data using multiples. В 78th Society of Exploration Geophysicists International Exposition and Annual Meeting, SEG 2008 (стр. 3420-3424). (78th Society of Exploration Geophysicists International Exposition and Annual Meeting, SEG 2008). Society of Exploration Geophysicists.