This applies to both natural and induced seismicity, safe O&G production, CO2 storage, fracking and effective geothermal energy. In addition NORSAR develops software tools for various earthquake loss modelling applications.

Unique concepts

The core application for NORSAR seismic modelling packages are 2D and 3D seismic ray modelling, survey planning, PSDM simulation, reservoir analysis and time-to-depth conversion based on ray tracing. The NORSAR software solutions contain a number of unique concepts compared to other systems on the market:

  • NORSAR have developed 3D model representation technique, called the Open Ray Model which gives flexible modelling possibilities with minor restrictions on the model completeness. For example, it is possible to perform seismic ray tracing immediately in a preliminary or incomplete depth model, i.e. interfaces may have holes or other undefined areas.
  • The Wavefront construction technique, invented and developed at NORSAR, ensures that all calculated rays are consistent in the Open Ray Model. Rays traveling through the incomplete or inconsistent parts of the model are rejected.
  • The SimPLITM approach allows simulating a PSDM image in a fast, flexible and robust way. The method is developed and patented by NORSAR. Using the SimPLI technique the total illumination and resolution effects of the acquisition geometry and overburden is taken into account to do a kind of 3D convolution to simulate a PSDM image. This allows an interpreter to rapidly analyse the dynamic reservoir model in terms of seismic response, i.e. PSDM images.

Microseismic software applications

NORSAR has developed generic technology to analyze and interpret microseismicity, both natural and induced/triggered by human activity. As a result of this expertise, we have developed a set of microseismic software applications. The first commercial application is called MDesign a system for evaluation and design of a microseismic network layout.

Global network

NORSAR software products are used by the leading E&P companies throughout the world. The products are supported by experienced sales, services and support team from our main office in Norway and a global network of representatives.