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VISTA 2D/3D Seismi c Data Processi ng Geophysical Exploration & Development Corporation1 1200, 815 8th Avenue SW, Calgary, AB T2P 3P2 Canada Tel: +1 (403) 262-5780Fax: +1 (403) 262-8632E-mail: info@gedco.com www.GEDCO.com VISTA 2D/3D Seismic Data Processing Version 10Course Notes February 2011 - Houston 2www.GEDCO.comVISTA 2D/3D Sei smic Data Processing VISTA 2D/3D Sei smic Data Processingwww.GEDCO.com3 Contents:Contents Contents.........3Introduction........5A 2D Land Straight.......7A1. Create a project.......7A2. Geometry setup....... LMO velocity definition...... First breaks....... Time gates....... Signal analysis.......

Header window....... Trace statistics....... Header Mapping....... Attribute window....... Create a flow....... Mute function....... Refraction and elevation statics.....

Apply the statics to the headers..... Surface consistent Deconvolution..... Attenuation of surface noise (ground roll).... Time Variant Spectral Balancing.....

Velocity analysis...... Brute stack....... Download game resident evil 4 pc full rip. Plot parameters....... Residual statics....... Second Velocity Analysis......

Stack after two passes of residual statics.... Common receiver stack...... Trim Statics....... Attenuation of random noise..... Poststack migration...... Prestack migration (PSTM)......

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133 4www.GEDCO.comVISTA 2D/3D Sei smic Data Processing Geophysical Exploration & Development Corporation 2010 Copyright Information Geophysical Exploration & Development Corporation (GEDCO) welcomes written communications regarding its products: 1200, 815 8th Avenue SW, Calgary, AlbertaT2P 3P2Canada info@gedco.com OMNI 3D Seismic Survey Design and Modeling and VISTA 2D/3D Seismic Data Processing are trademarks of GEDCO. All other product names are trademarks of their respective holders. Copyright Acknowledgment and Disclaimer The software in this product along with this help file, are protected by copyright, and GEDCO reserves all rights. Lawful users of this program are licensed solely for the purpose of executing the programs.

Failure to comply with the provisions of this products license agreement may be a violation of copyright law or a breach of the license. While a great deal of effort has gone into the preparation of this document, no liability is accepted for any omissions or errors contained herein. GEDCO makes no representations or warranties with respect to the contents hereof and specifically disclaims any implied warranties of merchantability or fitness for any particular purpose. VISTA 2D/3D Sei smic Data Processingwww.GEDCO.com5 Introduction: FirstdevelopedinCanadain1985,VISTAisamongtheindustrysfastestselling2D/3D SeismicDataProcessingsoftwarepackage.VISTAwhichwasthemarketsfirstPC-based seismic data processing software is also available for the LINUX environment. It delivers proven algorithms for optimal quality control of seismic data in the field or the office.

VISTAprovides robust algorithms for Land, Marine and VSP processing and offers intuitive flowsforcompleteseismicdataprocessing.BytakingadvantageofVISTAsflexibility, reliability,andeaseofuse,processorsincreasetheirefficiencywhilemaximizingthe dependability of their results. VISTAis available in four modules, 2D/3D Field QC, 2D/3D Field Processing, and 2D/3D Full Processing, and VSP. 6www.GEDCO.comVISTA 2D/3D Sei smic Data Processing VISTA 2D/3D Sei smic Data Processingwww.GEDCO.com7 A2D Land Straight: A1.Create a project: A1.1Inside your Work Directory. Create a folder and call it ExerciseA.Open Vista and createanewproject2DLandStraightLineinsidetheExerciseAfolder.Copythefile SHOT20.SGY from the vista 2D Land straight Line Tutorialdirectory to the ExerciseA directory(Bydefaultyoucanfindthisfileinadirectorysuchas: C: ProgramData Vista10 Tutorials 2DLandStraightLine).Orcontact support@gedco.comforotherwaystogetthefilesneededfortheexercisesofthis course. 8www.GEDCO.comVISTA 2D/3D Sei smic Data Processing The Project Data List window will pop up after clicking OK. This window contains the current listofseismicdatasetsinVistaformat.Itwillinitiallybeemptyuntilyouimport SEGY/SEGD/SEG2 files to the project or create data through a flow command. A1.2Create a new seismic dataset in the project, click on the new 2D seismic Data icon ( ) A1.3Import a seismic dataset in SEGY format into the NEW 2-D DATA object.

Click on, hold down, and then select. VISTA 2D/3D Sei smic Data Processingwww.GEDCO.com9 Find the file SHOT20.sgy and open it. Take a look at the different tabs to control the input in the Input SEG-Y Seismic Data File(s) dialogue.Click OK. The Transfer Header Info Seismic window will pop up when the input s done. It contains the range values for all the headers in the Vista file, these headers are defined by the project dictionary. A1.4A1.4 Close this window.To get this window back open it by clicking on, in the seismic object in the Project Data List window. 10www.GEDCO.comVISTA 2D/3D Sei smic Data Processing VISTA 2D/3D Sei smic Data Processingwww.GEDCO.com11 A2.Geometry setup: A2.1Click on in the SHOT20 dataset to open the Geometry window.