Уважаемые коллеги!
10 марта (вторник) 2026 г. в 15:00 в конференц-зале ИНГГ СО РАН (к. 315) состоится аспирантский научный семинар:
ЧАСТОТНО-ЗАВИСИМОЕ ЛУЧЕВОЕ ТРАССИРОВАНИЕ НА ОСНОВЕ РЕШЕНИЯ УРАВНЕНИЯ ЭЙКОНАЛА И СТРУКТУРНО-ОРИЕНТИРОВАННОГО СГЛАЖИВАНИЯ МОДЕЛИ
Докладчик: Штейн Александр Денисович, инженер лаборатории методов интерпретационной обработки сейсмических данных
Аннотация: Современный подход к обработке сейсмических данных предполагает: работу с 3D-данными; моделирование сложных геологических сред и наличие большого количества инструментов обработки. Ряд алгоритмов, позволяющих выполнять необходимое моделирование, используют расчёт волнового поля. Они требуют значительных вычислительных затрат – несколько месяцев расчёта на суперкомпьютерах. Расчёт волнового поля лучевым методом является более вычислительно эффективным подходом. Лучевой метод основан на высокочастотном приближении. Это накладывает ряд ограничений на входные данные и, как следствие, на результат применения алгоритмов, основанных на лучевом методе. Учёт частотной зависимости может в значительной степени ослабить эти ограничения. В работе рассматривается алгоритм расчёта частотно-зависимых лучевых решений и времён пробега. Важными составляющими алгоритма являются численное решение уравнения эйконала, двухточечное лучевое трассирование на основе решения уравнения эйконала, и учёт частотной зависимости при структурно-ориентированном частотно-зависимом сглаживании скоростной модели. Приведены теоретические основы алгоритма и результаты численных экспериментов.
Приглашаются все желающие.
A new oil and gas discovery named in honor of Alexey E. Kontorovich
Researchers from across Russia participate in a commemorative conference held in Akademgorodok, Novosibirsk
Nature lending a helping hand: application of fossil insects for revising ages of sedimentary rocks in Transbaikalia
Researchers from IPGG SB RAS discussed geoelectric structure of ore-bearing zones localized in Kuznetsk Alatau and Salair
Contribution of scientists from IPGG SB RAS to the discussion of fossil plant research at a major conference in Moscow
Russian scientists develop advanced algorithms for prospecting hydrocarbon deposits
Specialists from IPGG SB RAS measured radon levels in groundwaters used for public drinking water supplies in the Novosibirsk Region
'This is a unique platform': young scientists from IPGG SB RAS participated in the 5th Congress of Young Scientists
IPGG SB RAS strengthens cooperation with the Nanjing Institute of Geology and Paleontology (China)
Hydrological aspects of Transbaikalia discussed in Uzbekistan
The research focus on the Paleozoic (“old life”) era
Anomalies and more: An increasing interest in IPGG SB RAS research works from scientists around the world
Honoring the memory of the Master… A.E. Kontorovich will always be in our hearts
A cooperation agreement signed between IPGG SB RAS and Peking University (China)
IPGG’s experience in using direct surface geochemical methods in soils and snow cover for hydrocarbon prospecting
The research focused on quantification of residual hydrocarbon resources in the West Siberian Super Basin
Scientists from IPGG SB RAS visited China to participate in a large international conference
Scientists have evaluated the suitability of groundwaters as sources of drinking water in the Arctic permafrost regions of Russia
Novel methods for numerical modeling of physical processes in geophysical applications are being developed IPGG SB RAS
Boreal ammonoid fauna: scientists from IPGG SB RAS study geographical distributions of ammonoids that lived about 240 million years ago in marine basins of the Northern Hemisphere
Uzon volcano caldera: scientists go for the world's youngest oil
Novosibirsk scientists have developed an effective algorithm for large-scale industrial applications
IPGG SB RAS researchers investigate belemnite rostra collected in northern Siberia
IPGG SB RAS scientists have developed a technique to evaluate safety of buildings and structures
Autonomous seismic stations help investigate coal seams in mines
IPGG SB RAS researchers discussed investigation of geological hazards associated with occurrence of depression zones in the areas of Gorny Altai and Caspian Basin
Early Cretaceous oysters: seminal results
IPGG SB RAS traditionally hosts a large conference on geosciences
A delegation from Peking University (PKU) visited the Trofimuk Institute of Petroleum Geology and Geophysics, Siberian Branch of the Russian Academy of Sciences
A multidisciplinary endeavour at the intersection of seismotectonics and geophysics will allow detection of seismically hazardous faults in mountain and high-altitude permafrost areas
A local high-resolution geomagnetic model designed and developed at IPGG SB RAS will beat foreign counterparts
Discussion on geophones
Russian scientists study thermal springs in Central Baikal Rift Zone
An ultra-high precision temperature recorder applicable to bottom water monitoring in Lake Baikal has been created
Implications of megaflood occurred tens of thousands of years ago in Altai region
Trees and shrubs assist scientists in geophysical surveys
Research focus on Yamal
Ordovician communities of photosynthetic organisms in Gorny Altai (Altai Mountains) as a research focus of a young scientist at IPGG SB RAS
IPGG SB RAS’ delegation in China: work in progress
Visitors hospitably welcomed at the Paleontological Museum of IPGG SB RAS
IPGG SB RAS specialists discussed major trends in the development of Russia’s and global fuel and energy complex
Geophysicists started testing seismic vibration monitoring system at SKIF site
A success of IPGG SB RAS ― OGRI RAS joint workshop
Young researchers from IPGG SB RAS have won prestigious Rosneft Academic Tournament
IPGG SB RAS’s continued research into geochemistry of oils and condensates from the northern and Arctic regions of Western Siberia
IPGG SB RAS researchers took part in the Ural Lithological Biennale 2024
Scientists from IPGG SB RAS continue to study sedimentary successions in Arctic regions of Western Siberia
IPGG SB RAS to unveil the phenomenon of hazardous frost heave mounds in Yamal
Siberian and Far Eastern scientists collaborate to create a conceptual model of the formation of the composition of thermal waters of Transbaikalia
Scientific Cooperation Agreement signed between IPGG SB RAS and Northwestern University (China)
