Migration


  1. Advanced features of Kirchhoff migration in Prime.

    • Processing in 2D and 3D;
    • Interactive layer-be-layer migration with parameters selection for every layer and even for different parts of a single layer.
    • Migration in time and depth domain;
    • Pre-stack and post-stack migration with common image point gather creation;
    • Anisotropy taking into account;
    • PP and PS waves migration;
    • Compensation for complex surface effect;
    • Refraction taking into account for every horizon in depth-velocity model;
    • Interactive aperture selection for every layer separately;
    • Processing speed allows fast interactive analysis and computations;
    • Band pass and compensating filtering for migrated results;
    • Migration modes suitable for both PC and cluster processing.

  2. Layer-by-layer boundary integral migration of SCP gathers (analogue of RTM).

    • Processing in 2D and 3D;
    • Interactive layer-be-layer migration with parameters selection for every layer and even for different parts of a single layer.
    • Anisotropy taking into account;
    • PP and PS waves migration;
    • Anisotropy taking into account;
    • PP and PS waves migration;
    • Non-ray effects taking into account during wave field transformation from layer to layer;
    • Possibility to avoid the time wave field computation. It is actual in case of complex 3D environment;
    • Amplitude recovery during migration;
    • Processing speed allows fast interactive analysis and computations.
Result of time migration in average velocities. Depth-velocity model, that was used for migration is shown on the left.
Result of time migration in average velocities. Depth-velocity model, that was used for migration is shown on the left.
Result of depth migration in layered model. Depth-velocity model, that was used for migration is shown on the left.
Result of depth migration in layered model. Depth-velocity model, that was used for migration is shown on the left.
Example of data with gas accumulation. Gas-water contact was recognized after processing. It was confirmed by drilling later.
Example of data with gas accumulation. Gas-water contact was recognized after processing. It was confirmed by drilling later.
Result of 2D pre-stack migration and multiple elimination.
Result of 2D pre-stack migration and multiple elimination.