Overview

From acquisition to earth model, accurate velocity estimation and depth imaging provides the key to understanding thesubsurface before costly drilling decisions are made. With DepthCharge, the labor intensive and interpretive nature of thisprocessing workflow can be executed more easily, often saving days over common approaches.

Built upon the industry leading SeisSpace/ProMAX processing system, DepthCharge allows processors to rapidly anditeratively analyze velocities, build a depth model, and migrate the data so that the optimal depth image can be interpreted.

While velocity modeling and depth imaging have historically been both a labor and compute intensive process, theDepthCharge workflow couples simple usability designs with software architecture designed specifically for harnessingcluster multi-core CPU technology.

Benefits

Fast and Easy Workflows for Velocity ModelingThe software is designed withease of use as the primaryconsideration. The tomographyand migration modules containsimple parameters based onphysical properties, enablingusers to set up and iterate upontheir workflow rapidly. Thetomography algorithm executesin hours or even minutesversus traditional approacheswhich can take days.

Superior TechnologyThe tomography is a carefulimplementation of a true 3D algorithm that achievesperformance by carefully managing resolution - it is not a2D algorithm extended to 3D. For prestack depth migration,a 3D plane wave migration was implemented in order toprovide the most accurate migration that is still fast enoughto iterate in a velocity model building workflow.

Harnesses Latest Multi-Core Clusters & Grid ComputingDepthCharge was engineered to leverage all of the processingresources across a computer network. A robust approach tojob balancing and execution, DepthCharge is designedspecifically to work around typical or even catastrophicinterruptions on processing nodes or storage resources.

Features

3D TomographyFocused on ease of use, the tomography algorithm is robustenough to start with stacking velocities, from which it cancreate a smooth interval velocity field, and then invert forraypaths, reflection points, and velocities. While it allowsusers to constrain the solution with layers if they choose to,it does not require that for good results – in other wordsusers don't have to spend hours picking horizons on whatmay be complicated and noisy data. Finally, the speed of thetomography algorithm is remarkable – users can expect thisalgorithm to run in hours instead of days. The outputvelocity file is used to drive depth imaging algorithms,including the new 3D plane wave migration.

ProMAX DepthCharge Velocity Modeling and Depth Imaging

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ProMAX DepthCharge provides an easy to use suite of algorithms for iterative velocity modeling.

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Sales of Landmark products and services will be in accord solely with the terms andconditions contained in the contract betweenLandmark and the customer that isapplicable to the sale.

H05731 09/07© 2007 Landmark Graphics CorporationAll Rights Reserved. All other trademarks,service marks and product or servicenames are the trademarks or names of their respective owners.

Operating SystemLinux

RequirementsProMAX/SeisSpace 3D

Other SoftwareProMAGIC

ProMAX DepthCharge Velocity Modeling and Depth Imaging

Requirements: Hardware / Software / Operating System

www.halliburton.com/landmark

2D Migration Velocity AnalysisDepthCharge includes a suite of 2Dinterpretive processing tools that enableseismic processors and interpreters to bringtheir collective expertise together toconstruct an optimum depth velocity modelin 2D. The software makes it quick and easyto produce an accurate 2D interval velocitymodel, one of the most difficult and time-consuming tasks in pre-stack depthmigration. The result is significantlyimproved 2D seismic images and reflectorpositions, particularly in complex structures.

3D Plane Wave MigrationThis algorithm is intended to be the highestquality migration that is still fast enough toiterate in a velocity model building workflow.It is a fast and accurate wave equationprestack depth migration – that can provideusers with results the next day. In addition tovelocity model workflows, it should be notedthat this tool is suitable for a final migrationfor many additional situations, includingmost marine processing.

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The 3D Prestack Plane Wave Migration provides the highest quality algorithm for use in avelocity modeling workflow.

ProMAX DepthCharge supports an iterative workflow that allows for anaccurate velocity model to be created, imaged, and ready for consumptionby the interpreter.

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