Petroleum seismogeology is one of the highly integrated system sciences.With rapid development in the past decades,this discipline has been introduced practically into almost every field of petroleum exploration and domain of oil-gas field development.Thus,petroleum seismogeology has been a newly rising marginal discipline with great practicability and vitality.The paper briefly introduces recent advances of this discipline in structural interpretation,sedimentology,reservoir characterization,development seismology and non-conventional hydrocarbon seismic exploration,and discusses relevant technical issues.It is proposed that petroleum seismogeology has entered a new era in techno-methodology,which refcected by new working flows occurring in techniques of seismic interpretation,geological structure modeling running through the whole procedure of interpretation,popularization and application of depth-domain interpretation and full 3D volume interpretation.

PreviousNext No AccessBeijing 2009 International Geophysical Conference and Exposition, Beijing, China, 24–27 April 2009Seismic sedimentology: Concepts and challengesAuthors: Hongliu ZengJohn A.Katherine G. JacksonBingheng YuanHongliu ZengBureau of Economic GeologySearch for more papers by this author, John A.School of Geosciences, The University of Texas at AustinSearch for more papers by this author, Katherine G. JacksonSchool of Geosciences, The University of Texas at AustinSearch for more papers by this author, and Bingheng YuanBGP Inc., CNPCSearch for more papers by this authorhttps://doi.org/10.1190/1.3603805 SectionsAboutPDF/ePub ToolsAdd to favoritesDownload CitationsTrack CitationsPermissions ShareFacebookTwitterLinked InRedditEmail Abstract Seismic sedimentology is the use of seismic data in the study of sedimentary rocks and the processes by which they were formed. With current technology, seismic sedimentology is limited to the study of seismic lithology, geomorphology, depositional architecture, and depositional history. Seismic sedimentology overcomes some limits of classic seismic stratigraphy caused by inadequate seismic resolution and difficulties in picking higher‐order depositional time surfaces. Seismic sedimentology has become a useful tool for prospecting of stratigraphic traps in mature basins. Major benefits include, but are not limited to, an improvement in facies imaging and high‐frequency sequence stratigraphy and more efficient thin reservoir prediction. The main challenges for the future are to develop better slicing tools, better lithologic correlation methods, frequency‐dependent facies imaging, and thin‐bed imaging beyond the conventional resolution limit (λ/4).Permalink: https://doi.org/10.1190/1.3603805FiguresReferencesRelatedDetailsCited byReconstruction of Land and Marine Features by Seismic and Surface Geomorphology Techniques24 September 2022 | Applied Sciences, Vol. 12, No. 19 Beijing 2009 International Geophysical Conference and Exposition, Beijing, China, 24–27 April 2009ISBN (print):978-1-56080-284-6ISSN (online):2159-6832Copyright: 2009 Pages: publication data© 2009 Copyright © 2009 Society of Exploration Geophysicists and China Petroleum SocietyPublisher:Society of Exploration Geophysicists HistoryPublished Online: 28 Jun 2011 CITATION INFORMATION Hongliu Zeng, John A., Katherine G. Jackson, and Bingheng Yuan, (2009), "Seismic sedimentology: Concepts and challenges," SEG Global Meeting Abstracts : 280-280. https://doi.org/10.1190/1.3603805 Plain-Language Summary PDF DownloadLoading ...

Anomalous seismic-amplitude bright spots are a common feature in deeply buried (5500 to 6500 m) Ordovician limestone strata in the Central Tabei Uplift area of the Tarim Basin in northwest China. Those anomalies have proven to be useful indicators of reservoir quality. The bright spots as seen on seismic data are tied to high-gamma ray, low-velocity zones in wireline logs, and correspond to clastic cave sediment-fills in the host limestone in core. Synthetic seismic models confirm this relationship between seismic bright spots and cave-sediment fills. A seismic traveltime map of the top Ordovician unconformity illustrates erosional topography and seismic geomorphologic patterns associated with the unconformity with numerous sinuous fluvial channels and canyons, fluvial valleys, sinkholes, and tower karsts and hills. A mature surface drainage system interacted with a near-surface karst system and allowed terrigenous sediments to enter an underground cave system. Karst-related bright spots probably correspond to paleocaves that initiated along an early regional fracture network and later were enhanced and altered by additional discharges in the surface drainage system. A few examples of bright spots are interpreted to be related to postkarstification faults that might have had a hydrothermal origin. Distribution of bright spots provides a useful reference in mapping regional collapsed-paleokarst systems. Bright spots typically are associated with circular and linear faults, and V-shaped depression patterns are related to a collapsed paleocave complex. Seismic-scale mapping and visualization of the paleokarst system can be achieved by interpreting circular and linear faults using continuity attributes and by analyzing the relationship among faults, local depressions, and bright spots.

High-quality three-dimensional seismic data acquired in the central Tabei Uplift, Tarim Basin, western China, provide a rare opportunity to characterize in exceptional detail the three-dimensional geomorphology of a deeply buried (5500–6500 m [18,045–21,325 ft]) Ordovician unconformity and the related paleokarst drainage system. An integrated approach was applied that emphasized integration of seismic data with available conventional core, wireline logs, and age-equivalent outcrops. The exceptional quality of the seismic data allowed a seismic detection limit of karstified features of less than 75 75 m (246 246 ft) horizontally and 6 m (20 ft) vertically. Interpreted geomorphologic and depositional elements include fluvial channels and canyons, fluvial valleys, sinkholes, and tower karsts and hills. The modern tower karst-drainage system in Guilin, China, is very similar to the mapped Ordovician karst-drainage system and is used as a modern analog. The interaction between the surface karst-drainage system and the shallow-subsurface cave-passage system is evidenced by the observation that surface canyons appear to initiate in areas associated with intense sinkhole development. Also, surface river valleys tend to correspond to dip-oriented surface depressions partly related to near-surface cave collapse. During burial into the deeper subsurface, the combination of intrastratal collapse (karstified strata) and suprastratal collapse (postkarst-deposited strata) created large damage zones hundreds of meters thick and kilometers wide. Coalesced-collapsed paleocave systems can be interpreted from the unique circular pattern of faults (observed in map view) that are associated with seismic bright spots.

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