Seismic interpretation and basin analysis of the longford subbasin 44 chapter 5 well log sequence stratigraphy 5. Seismic stratigraphic interpretation from a geological model. Aaspi sequence stratigraphy boundary delineation based on adaptive seismic decomposition fangyu li1, rui zhai1, jie qi1, bo zhang2 and kurt j. Analysis of hierarchical orders of cycicity in sedimentary successions. Stratigraphy and sedimentology of the niger delta in. Case studies of representative shales in the usa and china, by shu jiang, caineng zou, wen lin, zhenlin chen, lei chen, lanyu wu, wei dang, and yajun li, discusses the importance of sequence. Seismic stratigraphy basin analysis and reservoir characterisation summarizes basic seismic interpretation techniques and demonstrates the benefits of intergrated reservoir studies for. Sequence stratigraphy past, present and future swsaapg. Jan 30, 2017 stratigraphy stratigraphy is a branch of geology which studies rock layers strata and layering stratification. Some fundamental problems in outcrop sequence stratigraphy. Overview of seismic interpretation techniques and how they are applied to outcrop and well. Free web tutorials sequence stratigraphy, tutorials carbonate petrology, seismic interpretation sequence stratigraphy exercises lower cretaceous south africa, seismic interpretation sequence stratigraphy exercises bahamas miocene, seismic interpretation sequence stratigraphy exercises lower cretaceous alaska, clastic outcrop interpretation sequence stratigraphy exercises of. During the 1980s, a finer resolution of stratigraphic analysis developed when outcrop and well data were applied to.
Patrice imbert, in developments in sedimentology, 2011. Third and fourth order seismic and stratigraphic sequences based on 2d seismic data from the northern offshore. This book contains six chapters dealing with the investigation of seismic and sequence stratigraphy and integrated stratigraphy, including the stratigraphic unconformities, in different geological settings and using several techniques and methods, including the seismostratigraphic and the sequence stratigraphic analysis, the field geological survey, the well log stratigraphic interpretation. Seismic, sequence and magnetic stratigraphy seismic, sequence and. Click download or read online button to get seismic stratigraphy book now. The innovation and refinement of the techniques and concepts of sequence stratigraphy has been one of the most exciting and profound developments in geology over the past thirty years.
The relations between seismicsequence stratigraphy and hydrostratigraphy allow for detailed mapping of permeable zones and semiconfining units of the floridan aquifer system at a level of resolution never before accomplished using well data alone. Seismic waves induced through rock using artificial source e. Boundaries are manifested as discontinuities in seismic sections and are located mainly by finding reflection terminations. The objective of seismic sequence analysis is to identify depositional sequences and systems tracts on seismic sections by interpreting the location of their boundaries.
Its objective is to define the genetic reflection packages by the surfaces that envelope seismic sequences and systems tracts. Barrash and reboulet 2004 used porosity data to investigate stratigraphic units. Free web tutorials sequence stratigraphy, tutorials carbonate petrology, seismic interpretation sequence stratigraphy exercises lower cretaceous south africa, seismic interpretation sequence stratigraphy exercises bahamas miocene, seismic interpretation sequence stratigraphy exercises lower cretaceous alaska, clastic outcrop interpretation sequence stratigraphy exercises of bookcliffs. Seismic stratigraphy use of exploration seismology to determine 3d rock geometries and associated temporal relations. It is the study of seismic data for the purpose of extracting stratigraphic information. Alongside 3d seismic, longreach horizontal drilling and the application of plate tectonics to exploration, sequence stratigraphy has been one of the greatest scientific advances within the petroleum geology industry of the last 50 years.
Ppt seismic stratigraphy powerpoint presentation free to. Oct 31, 20 seismic stratigraphy deals with interpretation. When coupled to petrophysical analysis and quantitative interpretation, a 3d seismic stratigraphic analysis of leonardian shelf margin reefal buildups on the eastern shelf of the midland basin reveals carbonate buildups which respond to changes in sea level and are accompanied by systematic changes in lithology and reservoir quality. The unique properties of seismic reflections allow the direct application of geologic concepts based on physical stratigraphy. Seismic stratigraphy interpretation, using sequence stratigraphy. Sequence stratigraphy is a type of stratigraphy that deals with the description, interpretation, classification, and nomenclature of sedimentary rocks based on their stratal stacking patterns and their stratigraphic relations. The aim of this paper is to analyze this thick stratigraphic succession using sequence stratigraphy, seismic attributes in order to create and contribute a better. Boundaries are manifested as discontinuities in seismic sections and are located mainly by finding reflection terminations procedure. Mar 11, 2020 the study of sequence stratigraphy is an important part of sequence stratigraphy. Sequence stratigraphy american association of petroleum. Intergrated seismic stratigraphic and structural analysis of. Seismic stratigraphy, basin analysis and reservoir. Sequence stratigraphy plays an important role in oil and gas exploration and development.
Seismic stratigraphy download ebook pdf, epub, tuebl, mobi. Contreras and latimer 2010 used acoustic impedance as an additional attribute for sequence stratigraphy. An integrated approach to the exploration and evaluation of conventional and unconventional resources ba. Sequence stratigraphy an overview sciencedirect topics. These discontinuities, based on seismic reflection terminations, are indicators of depositional sequences and system tracts formed by one or more of. Seismic records are based on measurements of the time sound waves seismic waves take to travel through rock. Dynamics of sedimentary environments are discussed with its relation to global controling factors and a link is made to highresolution sequence stratigraphy. Seismic reflection terminations and configurations are interpreted as stratification patterns, and are used for recognition and correlation of depositional sequences, interpretation of depositional environment, and estimation of lithofacies.
Stratigraphy stratigraphy is a branch of geology which studies rock layers strata and layering stratification. Pdf seismic stratigraphic analysis for depositional. Seismic stratigraphy chronostratigraphically constrains both the sedimentological and faultmechanical stratigraphy of a basin. Stratigraphy and sedimentology sequence stratigraphy. Seismic stratigraphy the study of seismic data for the purpose of extracting stratigraphic information is called seismic stratigraphy. Seismic stratigraphic interpretation from a geological. Pdf seismic stratigraphic interpretation from a geological.
Principles of sequence stratigraphy download ebook pdf. Wheelerlab is an interactive program that facilitates the interpretation of stratigraphic data seismic sections, outcrop data and well sections within a sequence stratigraphic framework and the subsequent transformation of the data into the. These bounding discontinuities are identified on the basis of. Sequence stratigraphy material for this chapter are mainly from the following articles. Ppt seismic stratigraphy powerpoint presentation free. Papers from a research symposium at the 1975 american association of petroleum geologists and supplemented by later reports became seismic stratigraphy applications to hydrocarbon exploration, one of aapgs bestselling book publications. Much of the early work in seismic and sequence stratigraphy was done in intracratonic and passivemar gin settings characterized by relatively simple patterns of subsidence, and in many cases by a well developed shelf break. Sequence stratigraphy as a sequence stratigraphy as a. Ssis supports full sequence stratigraphic analysis. Seismic stratigraphic interpretation from a geological model a north sea case study sebastien lacaze and fabien pauget, eliis, michel lopez and aurelien gay, university of montpellier ii, marion mangue, eliis summary sequence stratigraphy in the seismic interpretation workflow helps in the understanding of the basin analysis. It usually involves subdividing a sedimentary basin fill into individual sequence s of deposition hence the name, which can then be linked to changes in the two fundamental parameters of sediment supply and accommodation the amount of space available for deposition. Note that on seismic lines, downlapping clinoforms are concaveup, whereas.
Miller lamontdoherty geological observatory of columbia university abstract seismic stratigraphy is a technique for stratigraphic correlation, which involves the identification of regional unconformities sequence boundaries in seismic. Seismic stratigraphy is basically a geologic approach to the stratigraphic interpretation of seismic data. Seismic and sequence stratigraphic interpretation of the area of. Click download or read online button to get principles of sequence stratigraphy book now.
The relations between seismic sequence stratigraphy and hydrostratigraphy allow for detailed mapping of permeable zones and semiconfining units of the floridan aquifer system at a level of resolution never before accomplished using well data alone. Seismic and sequence stratigraphic interpretation of the area of influence of the magdalena submarine fan, offshore northern colombia. Furthermore, it can provide a predictive model extrapolated beyond the borehole as to aspects of the quality of potential reservoirs and seals, their sedimentary environments of deposition, and in some cases, even. Additional use of seismic facies analysis with characterisation in terms of. A sequence wavelet analysis explorationexploitation workshop ads.
The influence of water level rise, water level decline, water level rise and decline, and the influence of water level on the formation of the system tract in sedimentary cycle are discussed. Software assisted electrofacies and rock type mapping on local and regional scale. We use classic criteria to identify sequence boundaries on seismic profiles by reflection. Seismic line and facies interpretation shows that the clinoform seismic. American association of petroleum geologists studies in. Sequence stratigraphy as a concrete stratigraphic discipline abstract sequence stratigraphy is a stratigraphic discipline in which stratigraphic surfaces that represent changes in depositional trend are used for correlation and for defining specific types of sequence stratigraphic units. Sequence stratigraphic boundary delineation based on adaptive. Paleontologic data, integrated with seismic and well log data, are an integral part of sequence stratigraphic analysis.
The systematic approach applied in seismic stratigraphy explains why many workers are using the principles to evaluate their seismic observations. Sequence stratigraphic boundary delineation based on. Seismic stratigraphy is the study of stratigraphy and depositional facies as interpreted from seismic data. Application of sedimentary numerical simulation in sequence. Seismic sequence stratigraphy and sedimentary evolution of carbonate reservoirs in the sinian dengying formation, middle sichuan basin, southwest china. Seismic stratigraphy is a powerful tool for exploration and exploitation, especially when the rockfluid information within the seismic wavelet reflection character analysis is integrated with the lithofaciesstratigraphic information, which is determined from reflection group geometry sequence analysis. Sequence boundaries, such as the transgressive flooding surface often show truncated lapout surfaces due to surface erosion. Electrofacies definition and analysis using multiple logs. Seismic stratigraphy of the broad, lowgradient continental. Sequence stratigraphy lamontdoherty earth observatory.
Jan 30, 2017 sequence stratigraphy has geological time significance, when compared to lithostratigraphy which correlates similar rock type only on the bases of lithology often irrespective of the depositional environments. Lithologic interpretation and well correlation were carried out using the well log suites. Some fundamental problems in outcrop sequence stratigraphy are discussed, and the following ideas are obtained. A steering cube contains at every sample position the local dip and azimuth of the seismic events. When used in conjunction with seismic stratigraphy, seismic geomorphology can significantly enhance sequence stratigraphic interpretations. In the late 1970s, seismic data was interpreted stratigraphically to define packages of strata hundreds of meters thick that were deposited between sea level cycles that lasted 0. Sequence stratigraphy a global theory for local success n a seismic section interpreted to show the sandy interval yellow predicted using sequence stratigraphy. Seismic stratigraphic analysis for depositional environment and hydrocarbon occurrence appraisal using attributes. The sound or signal is produced by explosives or compressed air air guns.
Seismic and sequence stratigraphy the second chapter, sequence stratigraphy of finegrained shale deposits. Seismic reflection terminations, also termed lapout, are stratal discontinuities recognized on seismic sections that separate apparently conformable sedimentary units from nonconformable units, forming the basis of seismic sequence stratigraphy. Seismic stratigraphy has now become one of the standard tools of the geoscientist, and there is a pressing need for an introductory text on sequence stratigraphy. Rock is an elastic medium and the velocity of sound conveys. Sequence stratigraphy defines rock units based on event significance of their bounding surfaces. Seismic stratigraphy techniques help us for stratigraphic interpretation of seismic reflectors. Geophysics is applied to societal needs, such as mineral resources, mitigation of natural hazards and environmental protection. Seismic stratigraphy an overview sciencedirect topics.
Intergrated seismic stratigraphic and structural analysis. Seismic stratigraphy combines two very different scales of observation. Seismic interpretation seismic reflection termination patterns recognition of systems tracts on seismic data pitfalls in interpretation seismic stratigraphy sequence stratigraphy wiley online library. The aim of this paper is to analyze this thick stratigraphic succession using sequence stratigraphy, seismic attributes in order to create and contribute a better understanding of this basin. Sequence stratigraphy, seismic stratigraphy, and seismic. Introduction of sequence stratigraphy linkedin slideshare. This site is like a library, use search box in the widget to get ebook that you want. Sequence stratigraphy, seismic stratigraphy and basin. It is important because geological concepts of stratigraphy can be applied on seismic data and hence, seismic stratigraphy can be used as a predictive tool for petroleum system elements like reservoir, seal and source rock.
Applied wheeler and sloss ideas to interpretation of seismic. The sequence stratigraphic interpretation system plugin is an addon to the horizoncube. Sequence stratigraphy a global theory for local success. Stratigraphic analysis was carried out with the well logs and 2d seismic data by using principles of sequence stratigraphy while structural interpretation was done with aid of the seismic data to produce polar plots for the different structural trends. Sequence stratigraphy integrates all other types of stratigraphy and includes seismic stratigraphy figure 1. Wheelers confusion and the seismic revolution sepm. Sequence stratigraphy, seismic stratigraphy, and seismic structures of the lower.
Discusses the link between seismic stratigraphic principles and sequence stratigraphy. G sulzberger drilled two oil prospecting wells at bracknell op1 and hagley op2 in the north of the longford subbasin matthews 1983. It is widely used on land and at sea because of its applicability to subsurface. Introduction to seismic stratigraphy training course. Seismic stratigraphy interpretation using sequence stratigraphy. Sequence stratigraphy is the study of genetically related facies within a framework of chronostratigraphically significant surfaces. Seismic stratigraphy and global changes of sea level, part. Sequence stratigraphy quantitative sedimentology consortium.
Pdf seismic stratigraphy has initiated a revolution in stratigraphic analysis as. Seismic stratigraphic and quantitative interpretation of. Jun 12, 20 vail p 1987 seismic stratigraphy interpretation using sequence stratigraphy. When exploring for lithological traps, we must first establish the framework of sequence stratigraphy and systems tracts of the whole basin, and determine the depositional system characteristics and evolution. In the transgressive system tract tst, sediments are dominated by accretion. To try to understand and predict gaps unconformities in the sedimentary record.
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