Multi-Parameter FWI

MP-FWI Velocity

MP-FWI Relative Impedance

MP-FWI Relative Density

A single data-driven inversion process to simultaneously estimate the FWI velocity model and perform least-squares migration (LS-RTM).
Inverted FWI velocity model ensures accurate structural imaging and the LS-RTM corrects for propagation effects during the acquisition and migration process.
Further QI products can be derived from the estimated models, like relative impedance and density.
It can be extended to the pre-stack domain to deliver angle-dependent reflectivity gathers (LS-RTM) together with the velocity model, enabling further elastic rock property estimations like Vp/Vs and more.
The methodology works for both node and streamer acquisitions and has been successfully applied in various geological settings.

MP-FWI for Reservoir-Focused Imaging

Conventional imaging suffers from sub-optimal focusing and shadow effects close to geologically complex areas (regional faults), as observed in this Norwegian Sea data example. The multi-parameter inversion refines the velocity model, improving the focusing, and heals the fault shadow zone through the least-squares migration process. Additional QI products like relative impedance and density can be directly derived from the two de-coupled and simultaneously inverted models.

Multi-Parameter FWI (MP-FWI)

Accurate Earth Properties

Simultaneous Inversion of Velocity and Reflectivity

MP-FWI for Reservoir-Focused Imaging

MP-FWI for AVA / AVO Properties