Reverse Time Migration (RTM)

Conventional wave equation migration is performed by propagating data downward through a velocity model into the earth and is limited where the structure and velocity field generate more complex arrivals, such as turning and 'prism' waves. Complex propagation paths give rise to arrivals that are seen as noise in the imaged data.

RTM propagates events both downward and upward through the earth model, explicitly handling turning waves and all other complex propagation paths. In many cases the ability to make use of these complex wave modes allows imaging of parts of the subsurface that otherwise have poor direct illumination.

Campos Basin TTI RTM

Features

  • Imaging of all possible arrivals
    • Superior multi-path imaging
    • No dip limitation
    • Accounts for extreme lateral velocity variations
  • Wide azimuth and TTI capable
  • Mirror migration of ocean bottom or VSP data
  • Correct for amplitude anomalies using Q-compensating RTM.

Benefits

  • Improved imaging of complex plays
    • Steep dips
    • Complex overburdens, regardless of dip or rugosity
  • More accurate focusing, positioning and amplitudes in complex areas
  • Inclusion of TTI produces high-fidelity velocity models
Subsurface Imaging - Q Tomography

Q Tomography

Build accurate models of amplitude and phase anomalies, then compensate for their effects using Q PSDM.
Multi-Client Data - Brazil Presalt

Brazil Pre-Salt

Extensive modern BroadSeis pre-salt library offshore Brazil, including Santos and Campos Basins. Assess your options. Make informed decisions.
Offshore - BroadSeis

BroadSeis

Broadest bandwidth, best low frequencies deliver accurate models for better decisions. Choose BroadSeis at all stages from exploration to production.

Subsurface Imaging

CONTACT US


Contact us by opening an online inquiry.

Our Portfolio

OUR PORTFOLIO


View CGG's extensive portfolio of products and solutions.

OUR PRODUCTS


SEARCH

EITHER... search our portfolio of innovative solutions:

PRODUCT A-Z

OR... browse our alphabetical directory of geoscience products and services: