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Prestack Migration Algorithms

Accurately image areas with complex structures, velocities, or both

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WesternGeco has an extensive range of prestack migration algorithms to handle all geological complexities and seismic acquisition environments and designs, including the latest full-azimuth surveys.

Accurately image areas with complex structures, velocities, or both

Prestack Migration Algorithms Offerings

Offshore Sri Lanka Reimaging
13,080 km of broadband 2D seismic data
Use broadband 2D seismic data to enhance prospectivity of frontier basins and plays offshore Sri Lanka.
Gaussian Packet Migration
When high stratigraphic resolution is key
Achieve high-resolution steep-dip images in complex environments and high-frequency images for postsalt targets.
Anisotropic PS Kirchhoff PSTM and PSDM
Superior mode-converted imaging in time or depth
Discover industry-leading workflows for converted-wave velocity model parameterization and imaging in time or depth.
Kirchhoff Prestack Depth and Time Migration
The most widely used migration algorithm in the industry
Accommodate a range of geological settings and acquisition geometries with flexible, amplitude-preserving implementation.
Reverse Time Migration
Advanced two-way wave-equation prestack migration
Accurately image in and below areas with great structural and velocity complexity.
Adaptive Beam Migration
Multiarrival, high-quality final imaging
Achieve outstanding image quality and interpretation confidence.
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Video Webinar: 3D Seismic Illumination Challenges

Learn how least-squares migration implemented in the image domain and depth domain inversion efficiently mitigate illumination effects, as demonstrated with synthetic and field data examples.
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Tech Paper High-Resolution Model Building and Imaging Workflow Using Multimeasurement Towed Streamer Data

North Sea case study.

Industry Article The Defining Series: Beginner's Guide to Seismic Surveying

Today, geophysicists bounce seismic waves off strata below the Earth's surface and record seismic reflections to create high-resolution images of the subsurface.
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Tech Paper Mapping of Sand Injectites from Colour-Processed Multimeasurement Seismic Data

Consolidated sand injectites may beimportant reservoirs as well as pathways for fluid migration across seals insandstone reservoirs with frequent shale interbeds.
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Tech Paper Delineation of Karsts: A New Approach using Seismic Attributes

Case study from Kuwait.

Industry Article Integrated High-Density Point-Source, Point-Receiver Land Seismic

Advances in computer hardware and software have allowed many processing shortcuts and approximations to be reduced.

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