Integrated microseismic and 3d seismic interpretation. In seismic interpretation, the reflection coefficient rc of two different rocks depends on the difference between their seismic impedance and this depends mostly on the pwave velocity in the rock. Currently construction of the underground research facility, onkalo, is going on at the olkiluoto site. In this study, the structural system, and the seismic interpretation of middle cretaceous in jk field in southeast muglad basin were interpreted using 3d seismic data volume, well logs, and seismic attributes. Mar 11, 2016 the attributes define the shape and arrival time of reflection waveforms which depend on rock properties. Introduction seismic interpretation and subsurface mapping are key skills that are used commonly in the oil industry this teaching resource introduces the basic principles of seismic interpretation and then, if time permits, they can be applied in a practical exercise the resource dovetails with the a level geology specifications 4 2. Interpretation of seismic reflection data request pdf. These methods focus on characterization of the complexity, scaling characteristics and spatial variability of the wave field with the ultimate aim of recovering information on the. New 2d seismic reflection data from the south caspian sea, offshore azerbaijan, document for the first time in the deep water up to 650m of this area, the presence of gas hydrates. Basic theory of seismic waves traveling through the earth and how they interact with earth materials and interfaces. A simple method whereby the forward and reverse traveltime are used to determine depths to bedrock under each geophone, is known as the plusminus method.
Seismic interpretation course applied stratigraphix. Spreadsheet interpretation of seismic refraction data. Seismic interpretation and subsurface mapping are key skills that are used commonly in the oil industry this teaching resource introduces the basic principles of seismic interpretation and then, if time permits, they can be applied in a practical exercise the resource dovetails with the a level geology 33 specifications 2. To help you to get started, have a look at this pdf 1. View seismic interpretation research papers on academia. To view the seismic reflection profiles through the data listing, click on the line number in the first column to display a downsampled graphics interchange format gif image of that seismic line. Abstract complexly faulted subsurface configuration is. Structural interpretation of seismic data from an xy field. Crustal structure of the deepwater west niger delta passive margin from the interpretation of seismic reflection data. Innovative petrotech solutions, inc principles of 3d seismic interpretation and applications. Structural and stratigraphic 3d seismic interpretation of.
Advanced seismic interpretation is a course designed for graduate students. Comments on the geophysics paper multiparameter l1 norm. Introduction to the methods of acquisition and processing of seismic reflection data. Two general criteria for successful inversion appear in d and ts discussion. Structural interpretation of seismic data from an xy field, onshore niger delta, nigeria. Revised processing and interpretation of reflection seismic. In the two preceding stages data acquisition and processing, reflected waves were first generated then processed to give the stacked seismic sections or data volumes in a form ready for the concluding exploration stage which is the data interpretation. Geol463 seismic method the only method giving complete picture of the whole area gives by far the best resolution among other. Regional seismic interpretation of the hydrocarbon prospectivity of offshore syria article pdf available in geoarabia manama 163 january 2011 with 5,4 reads how we measure reads. It allows interpreters to make geological sense of seismic data, which carries inherent uncertainty. Pdf fault interpretation in seismic reflection data. Applications of 3d structural interpretation and seismic attribute analysis to hydrocarbon prospecting over x field, nigerdelta rotimi oluwatosin 1john, ameloko anthony aduojo1, adeoye o. Principles of 3d seismic interpretation and applications. Most widely used to estimate stimulated reservoir volumes and in identifying major fault or fracture events for use in hydrocarbon exploration.
Enhancing seismic discontinuity attributes with creative workflows, published in aapg explorer. Seismic interpretation is the third and last stage in the seismic exploration project. If you continue browsing the site, you agree to the use of cookies on this website. In year 2001 olkiluoto was selected for the site of final disposal. The integration of these techniques enables a detailed analysis and description of faults and fault systems during seismic interpretation and reservoir evaluation. 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. Geologists and geophysicists that spend most of their time interpreting seismic data on the workstation. The book is aimed especially at those new to interpretation, who, when confronted with a pile of fresh seismic sections, wonder where to start the interpretation, what to pick, how to recognise multiples and so forth, the book is divided into two halves, but these are not a geophysical half and a geological half as might be expected. The main use of seismic attributes was to create an intuitive display that. Summary horizontal seismic reflectors have been used recently to speculate on the existence and continuity of major tectonic features such as thrust faults in crystalline rocks, or as boundaries be. Abstracta process is described whereby the interpretation of seismic reflection data is carried out by a preliminary twodimensional plotting procedure followed by a threedimensional migration. A read is counted each time someone views a publication summary such as the title, abstract, and list of authors, clicks on a figure, or views or downloads the fulltext.
Interpretation linkage with other geophysical methods reading. 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. Mapping of variations in spatial statistics could provide another tool to aid interpretation of crustal seismic data. Interpretation of seismic reflection data in complexly. The authors provide an integrated methodology and practical tools for quantitative interpretation, uncertainty assessment, and characterization of subsurface. For example, the contact between sand with water saturation and sand with certain gas saturation gives a high rc that produces an amplitude. Seismic interpretation reflection seismology contour line. Acting as a liaison with the public, we insure that your company will be represented in a professional manner and as a good neighbor to property owners. Investigating the complex structural integrity of the zeit. The basic issue in seismic reflection interpretation is the conversion of the measured two way time into depth. Microseismic interpretation is the monitoring of small scale microseismic signals made from either natural or man made tremors.
We use both synthetic and real seismic data to illustrate both the value and limitations of statistical approaches. Revised processing and interpretation of reflection seismic data in the travale geothermal area italy adolfo fiordelisi 1, james moffatt 2, fabio ogliani 3, michele casini 1,simonetta ciuffi 1 and alessandro romi 3 1 enel gem geothermal production, via a. Practical seismic interpretation pdf free download. Estimation of rock properties from seismic waveforms and their vertical and lateral changes in time and space is the essence of seismic interpretation. Seismic interpretation an overview sciencedirect topics. Statistical approaches to interpretation of seismic. Pdf crustal structure of the deepwater west niger delta. Interpretation of seismic reflection data springerlink. Yamarna terrane of the yilgarn craton and the western officer basin. Seismic reflection interpretation course duration 5 days delivery mode classroombased course course fee. Velocity is considered as the parameter that most affects the conversion of. Pdf interpretation of seismic reflection data from offshore. What is known as traditional seismic interpretation, however, involves picking a reflection time surface associated with a layer boundary from a timemigrated volume of data or a reflector from a depthmigrated volume of data to determine the structure map for that layer boundary figure i19.
Purchase of an open document does not constitute license for republication in any form, nor does it allow web posting without prior written permission. Processing and interpretation of multichannel seismic reflection data swin06 cruise. Pdf regional seismic interpretation of the hydrocarbon. Geological setting and interpretation of the southwest half of deep seismic reflection line 11gayo1. The progressive role of quantitative seismic interpretation. Oct 15, 2016 basics of seismic interpretation slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. The geological interpretation with seismic log correlation leads us to understand satisfactorily the regional subsurface geology, especially the assessment of characteristic and type of fractures. It is the study of seismic data for the purpose of extracting stratigraphic information. Investigating the complex structural integrity of the zeit bay field, gulf of suez, egypt, using interpretation of 3d seismic reflection data. The data has geological structures to interpret and three horizons to pick. The seismic profiles collected during rv rafael cruise 08034 figs. Although the two way time twt is known measured, still there are two unknown parameters. 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. Whether you are an early career geoscientist wanting to learn a systematic approach to seismic interpretation or an experienced professional wanting to learn some of the latest techniques to have emerged in structural geology and seismic stratigraphy, this is the course.
These bounding discontinuities are identified on the basis of reflection termination patterns and their continuity. This page is the first step of a seismic stratigraphy interpretation. Seismic 2d reflection processing and interpretation of. Jan 03, 2000 in their recent paper, djikpesse and tarantola geophysics 65 4 pp. Department of geology and geography, west virginia university. Characterization of shallow highamplitude seismic anomalies in the hoop fault complex, barents sea, published in seg interpretation. Precise seismic interpretation is the fundamental tool for successfully locating oil and gas wells. Appropriate choice of seismic display modes and plotting scales are also important.
In this paper we discuss the potential of statistical mapping as a tool for enhanced interpretation of seismic data. Quantitative seismic interpretation demonstrates how rock physics can be applied to predict reservoir parameters, such as lithologies and pore fluids, from seismically derived attributes. Its objective is to define the genetic reflection packages that envelope seismic sequences and systems tracts. Here are some of the papers that we published on seismic interpretation.
1095 1126 1420 451 826 1282 1230 396 3 439 940 697 1359 351 1067 534 642 1446 585 354 560 559 875 492 77 970 1394 394 413 1494 1171 958 1285 1330 430 684 135 308