In-Depth Reservoir Services group provides:

  • Seismic Inversions
  • Advanced AVO Analysis
  • Porosity Prediction
  • Seismic Attributes Generation & Analysis
  • Seismic Lithology & Facies Classification
  • Pore Pressure Prediction
  • Rock Physics Modeling
  • Reservoir Seismic Enhancement
  • Seismic Interpretation

Seismic Inversion: The Common Language for Engineers, Geologists, and Geophysicists

Seismic inversion is a straightforward procedure: the original reflectivity data is converted from a seismic reflection to a rock property, known as impedance (sonic velocity X bulk density). Impedance provides a common language between engineers, geologists, and geophysicists because every VATs, in contrast, separate the RTM image based on sub-surface angle and azimuthal contribution to the image.

This has the effect of separating the data according to the sub-surface structure one understands the concepts of geology and acoustic impedance far better than the abstract concepts of a seismic trace. Therefore, the inversion domain provides common ground for integrating the various disciplines within a multidisciplinary asset team. Furthermore, seismic inversion can be used to evaluate the presence of reservoirs to help properly estimate if commercial reserves exist.

Major benefits from Seismic Inversion include:

  • Since well logs are often considered to be “ground truth” for the subsurface, inversion forces well ties to be made and understood.
  • Interpreting data in the inversion domain is far easier than in the seismic domain.
  • Inversion removes the effects of the wavelet within the seismic bandwidth.
  • Reservoir properties are separated from the complex overburden.
  • Inversion can provide quantitative predictions on the reservoir properties.
  • Subtle stratigraphic features can be enhanced.