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31دورية أكاديمية
المؤلفون: Hsieh, Yu‐huan, Liu, Char‐shine, Suppe, John, Byrne, Timothy, Lallemand, Serge
المساهمون: National Taiwan University Taiwan (NTU), Department of Earth and Atmospheric Sciences Houston, University of Houston, University of Connecticut (UCONN), Géosciences Montpellier, Institut national des sciences de l'Univers (INSU - CNRS)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Université des Antilles (UA)
المصدر: ISSN: 0278-7407.
مصطلحات موضوعية: deep ocean pelagic seismic facies, submarine canyons, Taiwan arc‐continent collision, Taiwan Coastal Range, wedge‐top basin mechanics, Huatung Basin Philippine Sea Plate, [SDU.STU.TE]Sciences of the Universe [physics]/Earth Sciences/Tectonics
الوصف: International audience ; The Chimei Canyon is a large, uplifting wedge‐top submarine canyon offshore eastern Taiwan that has delivered sediment since ~1–2 Ma from the rapidly eroding Taiwan orogen to the Chimei Fan in the Huatung Basin, east of the colliding Luzon Arc. In this study, we document the depositional record of the Taiwan arc‐continent collision on the adjacent oceanic Philippine Sea Plate using multichannel seismic reflection data together with high‐resolution bathymetry data to study the morphology, seismic sequences, and structures of the Chimei Canyon‐Fan system. The sedimentary strata are separated into three seismic sequences. The lowest sequence overlies oceanic crust, showing Cenozoic‐Cretaceous pelagic seismic facies that we interpret as pre‐collisional, whereas the middle and upper sequences are syn‐collisional. We propose a model for the development of the Chimei Canyon‐Fan in which the middle sequence first developed ~1–2 Ma, while the main depocenter was to the west in the forearc basin, west of the Luzon Arc. The upper sequence records a shift of depocenter after ~1 Ma from the forearc basin to the Chimei Fan east of the Luzon Arc. At the same time, this antecedent paleochannel‐fan system was deformed rapidly (~60 mm/yr; 62 km minimum shortening) by a complex imbricate thrust belt with the emergence of the arc and forearc basin as the west‐vergent Coastal Range thrust belt and the Chimei Canyon incising the active east‐vergent Offshore East Taiwan thrust belt. The thrust belt underlying the wedge‐top Chimei Canyon‐Fan has undergone >19‐km shortening and ~2.6‐km structure uplift.
العلاقة: hal-02996524; https://hal.umontpellier.fr/hal-02996524Test; https://hal.umontpellier.fr/hal-02996524/documentTest; https://hal.umontpellier.fr/hal-02996524/file/2020TC006148.pdfTest
الإتاحة: https://doi.org/10.1029/2020TC006148Test
https://hal.umontpellier.fr/hal-02996524Test
https://hal.umontpellier.fr/hal-02996524/documentTest
https://hal.umontpellier.fr/hal-02996524/file/2020TC006148.pdfTest -
32دورية أكاديمية
المؤلفون: Radivojević Dejan N.
المصدر: Tehnika, Vol 73, Iss 2, Pp 211-217 (2018)
مصطلحات موضوعية: seismic stratigraphy, oil and gas exploration, operational seismic sequence, seismic facies analysis, Engineering (General). Civil engineering (General), TA1-2040
الوصف: This paper presents two basic approaches in seismic stratigraphy interpretation. The first one as starting point have seismic sections, whose interpretation in the later stage correlates with well data. The second one in initial phase analyze the data obtain by deep well drilling which are later correlated with the seismic sections. The chronological order and seismic stratigraphy procedure are explained for both approaches. Those interpretation approaches enabled oil companies a detailed and more precise insight into geological features, reduction of exploration risk and more rational design of development wells.
وصف الملف: electronic resource
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33دورية أكاديمية
المؤلفون: Yuan Li, Song Lin, Hua Wang, Denggui Luo
المصدر: Geodesy and Geodynamics, Vol 8, Iss 5, Pp 347-355 (2017)
مصطلحات موضوعية: Fushan depression, Seismic sedimentology, Seismic facies, Seismic attribute, Geodesy, QB275-343, Geophysics. Cosmic physics, QC801-809
الوصف: The Fushan depression is a classic lacustrine rifted sub-basin in the Beibuwan Basin, South China Sea. The Paleogene Liushagang sequence is the main hydrocarbon-bearing stratigraphic unit in the depression. Using three-dimensional (3-D) seismic data and logging data, we analyzed depositional setting of the Liushagang sequence. We use wave impedance inversion to describe progradational directions of provenance and the general distribution of sand body. The seismic facies was analyzed by using the seismic sedimentology approach based on 3-D seismic data, and summed into eight types of seismic facies which could be well related to sedimentary facies. Seismic attributes with six objective sequence boundaries were extracted. Consequently, four provenance system of Liushagang sequence in the study area were confirmed by the corresponding relationship between the geologic information and the warm color and higher value area of seismic attributes: (i) the Hainan uplift provenance area in the south, (ii) the Linggao uplift provenance area in the west, (iii) the Yunlong uplift provenance area in the east and (iv) the northern provenance area. The seismic sedimentology used in this study may provide new insights into a better understanding of depositional setting in continental lacustrine rifted basins.
وصف الملف: electronic resource
العلاقة: http://www.sciencedirect.com/science/article/pii/S1674984717301179Test; https://doaj.org/toc/1674-9847Test
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34دورية أكاديمية
المؤلفون: Berton1*, Fábio, Vesely, Fernando Farias
المصدر: Brazilian Journal of Geology. December 2016 46(4)
مصطلحات موضوعية: Seismic facies, Seismic geomorphology, Deep-marine deposition, Mass-transport deposits, Turbidite systems
الوصف: Seismic facies analysis and seismic geomorphology are important tools for the analysis of depositional elements in subsurface. This paper aimed to investigate the character and genesis of depositional elements and erosive features associated with an Eocene progradational shelf margin in northern Santos Basin. Identified seismic facies are interpreted as shelf-margin deltas/shoreface deposits, tangential (oblique) clinoforms, sigmoidal clinoforms, topset reflectors, mass-transport deposits and turbidites. These facies are grouped into four associations representing periods of relatively constant environmental conditions. Association 1 is composed of shelf-margin deltas/shoreface deposits, tangential clinoforms and extensive sand-rich turbidites disposed as submarine channels and frontal splays. A progressive increase in clinoform angle within this association has been identified, culminating in high-relief sigmoidal clinoforms with less voluminous turbidites of facies association 2. Association 3 is composed by subparallel to divergent topset reflectors, interpreted as continental to shelfal deposits placed during base-level rises. These are always truncated basinward by slump scars, formed as a consequence of sediment overload at the shelf margin during aggradations. Association 4 is composed of sigmoidal clinoforms, mass-transport deposits and turbidites. Early clinoforms are steeper as a consequence of the topography of the slump scars. Subsequently, dip angles become progressively gentler as the system approach to the equilibrium profile. The steep physiography was favorable for canyon incision, which played an important role in turbidite deposition. Mass-transport deposits, formed subsequent to slope collapse, are composed of mud-rich diamictites, and show strong internal deformation.
وصف الملف: text/html
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35
المؤلفون: Chuchalina, Kristina Yurievna, Volkova, Aleksandra Aleksandrovna, Merkulov, Vitaly Pavlovich
المصدر: Известия Томского политехнического университета
Bulletin of the Tomsk Polytechnic Universityمصطلحات موضوعية: сейсмофациальный анализ, core laboratory studies, Materials Science (miscellaneous), Well logging, Borehole, скважины, Management, Monitoring, Policy and Law, лабораторные исследования, acoustic impedance, well logging, Paleontology, геофизические исследования, Relevance (information retrieval), керны, seismic facies map, Waste Management and Disposal, сейсморазведка, палеозойские отложения, Drilling, Paleozoic deposit, акустический импеданс, Geotechnical Engineering and Engineering Geology, seismic facies analysis, Statistical classification, Identification (information), Fuel Technology, Basement (geology), коллекторы, Facies, Economic Geology, Geology
الوصف: Актуальность исследования обусловлена необходимостью увеличения степени достоверной оценки геологического строения сложнопостроенных коллекторов при наличии малого набора геолого-геофизической информации, что представляет неоднозначность в прогнозировании и выделении геологических объектов. В последние десятилетия компании широко применяют различные классификационные алгоритмы в процессе обработки всего комплекса данных для уменьшения неопределенностей геологической интерпретации. Одним из подходов является применение классификационных методов к сейсмическому сигналу, которые разделяют исследуемый объект на однородные по ряду признаков области, где также совместно используют данные геофизических исследований скважин и лабораторных исследований керна, что подразумевает комплексирование информации. Комплексная интерпретация сейсмических и скважинных данных позволяет прогнозировать на качественном уровне литофациальную изменчивость на локальных участках, что способствует более рациональному размещению эксплуатационных скважин. Цель исследования заключается в рассмотрении подходов анализа достоверной оценки и прогноза фациального строения при поиске перспективных объектов для наиболее оптимального расположения эксплуатационных скважин при планировании бурения, с учетом постоянно пополняемой и обновляемой геологической информации о пласте. Объектом исследования являются отложения палеозойского фундамента юго-восточной части Западно-Сибирской плиты, которые представляют породы различного вещественного состава, включая карбонатные разности. Методы исследования включают статистический анализ сейсмической информации и геолого-геофизических данных. В результате исследования выполнен статистический анализ пространственного изменения фациальной обстановки, на основе которого выделены достоверные зоны наличия определенной фации. Предложенная стратегия прогнозирования перспектив нефтегазоносности палеозойских отложений на примере одного из месторождений Западной Сибири способствовала выделению перспективных зон для будущего планирования расположения скважин. The relevance of the research is caused by the need to increase the degree of reliable assessment of the geological structure of complex reservoirs in the presence of a small set of geological and geophysical information, which is ambiguous in predicting and identifying geological objects. In recent decades, companies have widely used various classification algorithms in processing the entire complex of data to reduce the uncertainties of geological interpretation. One of the approaches is application of classification methods to a seismic signal, which divide the object under study into areas that are homogeneous by a number of signs, where geophysical well surveys and core studies are also used, which involves the integration of information. A comprehensive interpretation of seismic and borehole data allows predictingat a qualitative level lithofacies variability in local areas, which contributes to a more rational placement of production wells. The main aim of the research is to consider approaches to analyzing a reliable assessment and forecasting the facies structure when searching for promising objects for the most optimal location of exploration wells when planning drilling, taking into account constantly updated and renewed geological information about the formation. The object of the study is the Paleozoic basement deposits of the southeastern part of the West Siberian Plate, which represent rocks of various material composition, including carbonate differences. Methods include statistical analysis of seismic information and geological and geophysical data. The statistical analysis of the spatial change in the facies environment was performed, on the basis of which reliable zones of the presence of certain facies were identified. The proposed strategy for predicting the prospects of oil and gas potential of the Paleozoic sediments on the example of one of the fields in Western Siberia contributed to the identification of promising zones for future planning of well locations.
وصف الملف: application/pdf
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::432b3d48dcf5e1e6f3c675c6217a7946Test
https://doi.org/10.18799/24131830/2021/8/3318Test -
36دورية أكاديمية
المؤلفون: Winata, Mulky, Elders, Chris, Maselli, Vittorio, Stephenson, Randell
المساهمون: University of Aberdeen.Geosciences, University of Aberdeen.Geology and Geophysics
مصطلحات موضوعية: SDG 14 - Life Below Water, Seismic stratigraphy, Seismic facies, Bottom current, Mass transport complexes, Deep water sediments, Passive margin, Northern carnarvon basin, Exmouth plateau, North west shelf Australia, QE Geology, QE
الوصف: Acknowledgements We would like to express our gratitude to Geoscience Australia for the provision of public domain seismic and well log data. All available datasets used in this research are open source, can be accessed through the National Offshore Petroleum Information Management System (NOPIMS; https://nopims.dmp.wa.gov.au/nopimsTest). Schlumberger are thanked for the provision of Petrel software. Mulky Winata is supported by a collaborative PhD scholarship under the Aberdeen – Curtin Alliance (http://aberdeencurtinalliance.orgTest/) namely between Curtin University (Perth, Australia) and the University of Aberdeen (Aberdeen, Scotland). Diego Kietzmann, Victorian Paumard, Marina Rabineau and two anonymous referees are thanked for their thoughtful reviews of earlier versions of this manuscript. ; Peer reviewed
وصف الملف: application/pdf
العلاقة: Marine and Petroleum Geology; 281104136; b25a7e5a-105d-443b-ad55-c303a0ea7d7b; Winata , M , Elders , C , Maselli , V & Stephenson , R 2023 , ' Regional seismic stratigraphic framework and depositional history of the post- : Valanginian passive margin sequences in the Northern Carnarvon Basin, North West Shelf of Australia ' , Marine and Petroleum Geology , vol. 156 , 106418 . https://doi.org/10.1016/j.marpetgeo.2023.106418Test; ORCID: /0000-0003-4868-8601/work/142143027; https://hdl.handle.net/2164/21641Test
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37دورية أكاديمية
المصدر: Journal of Mining and Earth Sciences; Vol. 64 No. 1 (2023): Vol 64, Issue 1; 10-21 ; Tạp chí Khoa học Kỹ thuật Mỏ - Địa chất; Tập. 64 Số. 1 (2023): Vol 64, Issue 1; 10-21 ; 1859-1469
مصطلحات موضوعية: Northern Song Hong Basin, Paleo-environment, Seismic facies
الوصف: Northern Song Hong Tertiary Sedimentary basin is a classic case study of a pull-apart basin in southeast Asia, whose formation was controlled by the India-Eurasia collision, sinistral and dextral strike-slip motion of the Ailao Shan-Red River Shear Zone and Opening of the East Vietnam Sea during the Cenozoic. Unlike the central and southern parts of the basin, the northern Song Hong Basin experienced a very strong inversion during the Late Miocene. This rapid uplift of the region has led to significantly change in lithofacies and sedimentary environments, which are now still poorly understood. This uncertainty is considered one of the main challingings in prediction of the non-structural traps in the region. The recent results derived from well logging and 2D/3D seismic interpretation allowed us to define the Miocene formation in northern Song Hong basin, which are subdivided into three substrata, namely: the Lower, Middle and Upper stratum, which are characterized by typical characteristics of lithology and depositional environments. The Lower Miocene formation is dominated by deltaic environment at the bottom, transitioning to the overlying shelf environment. Lithology of the section varies from coarse-grained sediment (sandstone) to fine grained material such as shale and mudstone upward; The Middle Miocene stratum demonstrate sandier, coalic materials of the delta plain and delta front environments intercalated with swampy shale. In contrast, the Upper Miocene section is characterized by more fluvial and nearshore elements. It is illustrated by presence of the channel-filled sand bodies and mouth/longshore sand bars. These sand bodies demonstrate good porosity and horizontal permeability, which are considered to be good potential reservoir for both structural and non-structural traps in the Miocene formation. ; Northern Song Hong Tertiary Sedimentary basin is a classic case study of a pull-apart basin in southeast Asia, whose formation was controlled by the India-Eurasia collision, sinistral and dextral ...
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38دورية أكاديمية
المصدر: AIMS Geosciences, Vol 2, Iss 4, Pp 413-425 (2016)
مصطلحات موضوعية: Seismic facies classification, sonification, audio video display, spectral decomposition, pattern recognition, musical information retrieval, MIDI, Geology, QE1-996.5
الوصف: In this paper, we introduce a novel approach for automatic pattern recognition and classification of geophysical data based on digital music technology. We import and apply in the geophysical domain the same approaches commonly used for Musical Information Retrieval (MIR). After accurate conversion from geophysical formats (example: SEG-Y) to musical formats (example: Musical Instrument Digital Interface, or briefly MIDI), we extract musical features from the converted data. These can be single-valued attributes, such as pitch and sound intensity, or multi-valued attributes, such as pitch histograms, melodic, harmonic and rhythmic paths. Using a real data set, we show that these musical features can be diagnostic for seismic facies classification in a complex exploration area. They can be complementary with respect to “conventional” seismic attributes. Using a supervised machine learning approach based on the k-Nearest Neighbors algorithm and on Automatic Neural Networks, we classify three gas-bearing channels. The good performance of our classification approach is confirmed by borehole data available in the same area.
وصف الملف: electronic resource
العلاقة: http://www.aimspress.com/geosciences/article/1159/fulltext.htmlTest; https://doaj.org/toc/2471-2132Test
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39تقرير
المؤلفون: Чучалина, Кристина Юрьевна
المساهمون: Меркулов, Виталий Павлович
مصطلحات موضوعية: сейсмофациальный анализ, сейсмофациальная карта, фации, акустический импеданс, инверсия, seismic facies analysis, seismic facies map, facies, acoustic Impedance, inversion, 21.04.01, 552.578.2.061.4:552.54:550.834(571.16)
الوصف: В данной работе рассматривается методика применения комплексного анализа геолого-геофизических данных и статистическое обоснование сейсмофациального анализа. В работе было выделено, что использование широкого спектра информации влияет на оценку и прогноз распределения геологических тел в пространстве. В ходе работы были выявлены взаимосвязи сейсмической, геофизической информации и лабораторных исследований керна. Предложенная методика комплексного анализа данных подразумевает уменьшение неопределенностей в процессе оценки и прогноза геологической среды. Обоснование полученной сейсмофациальной карты на основе инверсии позволяет эффективно прогнозировать геологическое распределение фаций в пространстве и времени, но также уменьшать неопределенности при построении геологической модели. ; In this paper, we consider the methodology for applying a comprehensive analysis of geological and geophysical data and the statistical justification of seismic facies analysis. The work highlighted that the use of a wide range of information affects the estimation and forecast of the distribution of geological bodies in space. In the course of the work, interconnections of seismic, geophysical information and core research were identified. The proposed methodology for complex data analysis implies a reduction in uncertainties in the process of assessing and predicting the geological environment. The justification of the obtained seismic facies map based on inversion allows us to effectively predict the geological distribution of facies in space and time, but also reduce uncertainties
وصف الملف: application/pdf
العلاقة: Чучалина К. Ю. Статистическое обоснование сейсмофацильного анализа сложнопостроенных карбонатных коллекторов Северо-Останинского нефтяного месторождения : магистерская диссертация / К. Ю. Чучалина; Национальный исследовательский Томский политехнический университет (ТПУ), Инженерная школа природных ресурсов (ИШПР), Отделение нефтегазового дела (ОНД); науч. рук. В. П. Меркулов. — Томск, 2019.; http://earchive.tpu.ru/handle/11683/55692Test
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40دورية أكاديمية
مصطلحات موضوعية: ddc:550, Basin morphology, Glacial sediments, Lienz Basin, Overdeepening, Seismic facies, Seismic imaging
الوصف: We reveal the subsurface bedrock topography and sedimentary succession of one of the deepest glacially-formed basins in the Eastern Alps: the Lienz Basin in the Upper Drau Valley (Tyrol), by means of seismic reflection. A dense source-receiver spacing, supplied by autonomous receivers, and a prestack depth-migration processing scheme were essential to distinguish the various deposits in fine detail, such as slumping, fan delta deposits, and a modified monocline on the basin flank. These details support our interpretation of the seismic stratigraphy that consists of, e.g., subglacial till of last glacial maximum (LGM) age and possibly older, laminated basin fines, and gravel/coarse sand. The maximum depth of the basin is 622 m, at the junction of two major basement faults that are not clearly visible in the seismic reflections. We regard the overdeepening in this longitudinal valley as the result of glacier confluence during the LGM. Subglacial meltwaters utilized the higher erodibility of faulted rocks, as indicated by channel structures. The adverse slope (2.6%) along the valley axis exceeds the gradient ice-surface slope (0.4–0.5%) during the LGM by more than fivefold. We thus suggest this feature is a product of a pre-LGM phase, since adverse slopes greater than ~ 1.2 times the ice surface slope promote the freezing of water in subglacial channels and prevent efficient water flushing of sediments. Integrating other studies allows us to estimate the local overdeepening of the Lienz Basin and that of the whole Upper Drau Valley to be 146 m and 530 m, respectively. At the beginning of lacustrine sedimentation, we estimate the paleo-water depth to be at least 216 m.
وصف الملف: application/pdf
الإتاحة: https://doi.org/10.34657/779210.1007/s00015-019-00339-0Test
https://oa.tib.eu/renate/handle/123456789/8754Test
النص الكامل