Using 3d seismic attributes in reservoir characterization. Of all the geophysical exploration methods, seismic surveying is unequivocally the most important, primarily because it is capable of detecting largescale to smallscale subsurface features. We discuss a recent development and application of the multichannel time slice singular spectrum analysis mtsssa for 3d seismic data denoising in time domain. Basics of seismic interpretation slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Seismic trace at the crosssection along ob2 and ob4, and timeslice at 1004 ms obtained by 3d seismic surveys in 2003 and 2005. A time slice view of the data is an improvement over vertical sections for the interpretation of depositional systems because it provides the opportunity to see a portion of depositional systems in map view. Currently construction of the underground research facility, onkalo, is going on at the olkiluoto site. He has published 5 books and more than 175 papers and abstracts and likes to make presentations at any beckoning opportunity. The book covers ocean acoustic tomography, inverse methods, seismic numerical modeling, asymptotic theory of normal modes and surface waves, foundation of inverse theory, etc. All modern seismic interpretation software can perform the numerical transform that converts 3d seismic wiggletrace data into a 3d coherency volume. Using 3d seismic attributes in reservoir characterization susan nissen geophysical consultant mclouth, ks kansas next step 2007 seminar. Interpretation of threedimensional seismic data, sixth ed.
Seismic interpreters can be geologists, geophysicists, and even engineers. Time slices through a a seismic and b coherence data volumes. Reflections reflect this layering seismic details waveform, amplitudes etc. These results will be invaluable to seismologists interpreting seismic data. The character of the seismic record changes with depth. The use of computers in 3d seismic volume interpretation has not reached its full potential. A time slice is a quick, convenient way to evaluate changes in amplitude of seismic data.
A major uncertainty in the interpretation and risk analysis of seismic amplitude anomalies is the presence of a pitfall. Nov 19, 2017 interpretation of threedimensional seismic data by alastair brown but no amount of books will do as much for you as the following suggestion. Seismic 2d reflection processing and interpretation of. If contours narrow between a shallow and a deeper time slice, then the feature is a structural low figure 7. Mioceno norte area, lake maracaibo, venezuela downloadable pdf. The images on the left show an example of a complex channel system that would have been be undetected without 3d seismic. Stratal slicing on a workstation is done by first tracking frequencyindependent, geologic time equivalent reference seismic events, then building a stratal time model and an amplitude stratal slice volume on the basis of linear interpolation functions between references. Seismic data analysis techniques in hydrocarbon exploration explains the fundamental concepts and skills used to acquire seismic data in the oil industry and the stepbystep techniques necessary to extract the sections that trap hydrocarbons as well as seismic data interpretation skills it enhances the ability to interpret seismic data and use that data for basin evaluation. Inlines, crosslines, time slices and other line types can be displayed in an interpretation window. Basic theory of seismic waves traveling through the earth and how they interact with earth materials and interfaces. A horizontal display or map view of 3d seismic data having a certain arrival time, as opposed to a horizon slice that shows a particular reflection. First steps in seismic interpretation geoscienceworld.
Oct 15, 2016 basics of seismic interpretation slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Seismic exploration legacy in northern canada and alaska evidence of seismic exploration remains from the 960s. Timehorizon attributes include coherence, dip, azimuth, and curvature. The main goal of this paper is to implement event tracking automatically by introducing a dynamic time warping dtw algorithm vintsyuk 1968, berndt and clifford 1994 into the seismic interpretation workflow. The focus for most of this book is on surface reflection seismology, meaning an active.
As an individual geoscientist, you develop and apply your own. Time slice through a 3d seismic data set from brown, 1991 documentos semelhantes a seismic interpretation. Using 3d seismic attributes in reservoir characterization 1. Barclay and a great selection of related books, art and collectibles available now at. Understanding of the techniques and methodologies of seismic section interpretation and of map contouring are therefore a must for achieving ideal well locations and for geosteering correctly the well along the subsurface environment. Improving 2d seismic interpretation in challenging settings by integration of restoration techniques. This timeslice corresponds to the reservoir top at iw1. The primary aim of this book is to describe dixs correlation procedure in terms of the science, data, tools, and techniques now used in seismic interpretation in the oil and gas industry. As things like volume calculations and drilling operations work in the depth domain, we have to convert the seismic interpretation from time to depth by generating a velocity model for the area of interest using velocity information derived from wells andor from the seismic data. Formerly, a book, now available on cdrom, this title was written to be an introduction to the geologic interpretation of seismic data. The interpretation of 3d data provides also more detailed stratigraphic information than the interpretation of 2d data. Where possible these canonical signals are described by simple, standard timedomain functions as well as by the classical spectral results.
Chapter 4 seismic attributes in hydrocarbon reservoirs detection and characterization. Interpretation of threedimensional seismic data alistair r. Pdf seismic data interpretation and evaluation for hydrocarbon. Overlaying coherence on a seismic time slice provides the interpreter with the capability to more easily name and link master. Horizon attributes are extracted along a time slice or tracked horizon and. In year 2001 olkiluoto was selected for the site of final disposal. Seismic data interpretation and evaluation for hydrocarbon. The time shifts are estimated automatically using the dtw algorithm according to the characterization of seismic data, which is the key. The time slice is the first step toward 3d interpretation of a 3d seismic volume. Seismic american association of petroleum geologists.
Seismic 2d reflection processing and interpretation of shallow refraction data abstract posiva oy takes care of the final disposal of spent nuclear fuel in finland. Automatic seismic event tracking using a dynamic time. Basics of seismic interpretation incorporated research. Request pdf 3d seismic interpretation this book introduces. To follow the first part of the book, the reader is only expected to have an elementary understanding of 2d seismic methods. Seismic interpretation is an art or a skill that is acquired with experience, which i. Conversely, if contours widen between a shallow and a deeper time slice, then the feature is a structural high figure 7. Structures seismic sequence stratigraphy seismic faciesanalysis modeling interpretation of 2d and 3d data coherent horizons in the processed data are reflections that are emphasized in the section the impedance contrast correspond with the layering in the subsurface. The book can thus be used for teaching a firstlevel graduate class as well as a short course for professionals. Seismic data analysis techniques in hydrocarbon exploration. In large part, this book is a compilation of notes from seismic inter pretation courses that. Timefrequency analysis of seismic data using local attributes.
Pdf timefrequency analysis is an important technology in seismic data processing and interpretation. As an individual geoscientist, you develop and apply your own approach and style when interpreting seismic data. Four case studies make up almost the entire last third. Introduction to petroleum geology and geophysics geophysical methods in hydrocarbon exploration geo4210. Aug 21, 2003 3d seismic data have become the key tool used in the petroleum industry to understand the subsurface.
What is the best book to learn how to practice and interpret. Analysis of attributes has been integral to reflection seismic interpretation since the. Graham and trotman seismic reflection interpretation has been well served with texts in recent years, but this book is notable in presenting plenty of casehistory material. This phenomenon has important implications for seismic interpretation, particularly for sequence stratigraphic studies. Pdf first steps in seismic interpretation khaled magdy. Thickness can be determined by seismic stratigraphic interpretation and conversion from time data to depth. First steps in seismic interpretation geoscienceworld books. The time slice clearly displays the channels embedded in sediments. They constitute low reflectivity package, lacking laterally continuous internal reflections. Pdf timefrequency analysis of seismic data using local. Interpretation of threedimensional seismic data by alastair brown but no amount of books will do as much for you as the following suggestion.
All interpretation tools are available in this window and the view can be zoomed, stretched, and squeezed in either direction. Pdf of all the geophysical exploration methods, seismic surveying is unequivocally the. The narrow bands of low coherency values that extend across this time slice are created by. An introduction to seismic interpretation pdf free download. Thickness, fracture permeability, brittleness, organic richness, pore pressure, and more can be determined from seismic data chopra et al. What is the best book to learn how to practice and.
Nov 14, 2014 a time slice is a horizontal display in 3d seismic data. Attributes are related to the fundamental information in seismic data. Topics covered in this book include basic structural interpretation and mapmaking. His research interests focus on techniques that are aimed at characterization of reservoirs. Nanda acknowledgments seismic interpretation is an art or a skill that. Seismic attributes in hydrocarbon reservoirs detection and. Structural interpretation of seismic data from an xy field. Shale reservoir characterization is also the focus of 3d seismic interpretation. Of all the geophysical exploration methods, seismic surveying is unequivocally the most important, primarily because it is capable of detecting. Scribd is the worlds largest social reading and publishing site. New technology seismic seismic interpretation august 9, 2007 hays, ks 2.
Coblending of seismic attributes for interpretation of channel geometries in rence field of niger delta, nigeria augustine ifeanyi chinwuko, ajana godwin onwuemesi, emmanuel kenechukwu anakwuba, clement udenna onyekwelu, harold chinedu okeke, and izuchukwu ignatius obiadi. If you continue browsing the site, you agree to the use of cookies on this website. The structural interpretation of the seismic data is. To enhance theoretical knowledge of seismic structural interpretation, stratigraphic interpretation. Use features like bookmarks, note taking and highlighting while reading 3d seismic interpretation. A timeslice view of the data is an improvement over vertical sections for the interpretation of depositional systems because it provides the opportunity to see a portion of depositional systems in map view. A seismic interpretation study should access the following data sets. Figure 4, 5, are if time slices displaying the slave. To be effective, it is necessary to teach geologists and engineers a bit of geophysics, and geophysicists and engineers a bit of.
A case study from the jura foldandthrust belt switzerland alexander malz, herfried madritsch, and jonas kley. During interpretation, the slices of seismic fusion volume are used to control the planar strike of faults, and the sections of. Introduction to the methods of acquisition and processing of seismic reflection data. Todays advanced geophysical workstations are truly magnificent tools, capable of providing tremendous geophysical data. This sixth edition of alistair browns classic text on 3d seismic interpretation will help geologists, geophysicists, and engineers to interpret that data. Time slices, horizon slices, proportional slices, and other types of planview images now are. Microsoft powerpoint introduction to petroleum geology and geophysics. This would be a great textbook for an introduction to seismic interpretation course that focuses on the geology side, or a great reference manual for geoscientists or perhaps even engineers who are working with seismic data probably in the petroleum industry, but also in academia, or the environmental industry. Attributes are generally computed from the seismic data represented in time, rather than in depth.
In addition to providing excellent structural images, the dense sampling of a 3d survey makes it possible to map reservoir quality and the distribution of oil and gas. Although some studies have been carried out on the regeneration of these lines, the reason many of them still remain as both a visual scar and evidence that there has been a change of some sort on habitat and. The book starts from the introduction of the basic concepts and methods in 3d seismic imaging. To acquire skills in interpretation of 3d seismic data to enhance theoretical knowledge of seismic structural interpretation, stratigraphic interpretation, reservoir identification and evaluation, and horizon and formation attributes. Additionally, contours associated with a reflection horizon can be traced from time slices. Seismic interpretation an overview sciencedirect topics. Basics of seismic interpretation the lesson uses the basics seismic reflection principles, and allows the student to apply them to interpret a geologic framework, conduct a data analysis, prospect for hydrocarbons, and then assess whether the basin should be bid on and provide an economic analysis. The arrows indicate the parts where differences were recognized.
266 428 147 524 48 1326 487 1350 194 135 484 1477 446 255 870 891 591 144 280 193 1049 1091 278 1086 29 890 840 158 781 849 733 102 997 134 463 217