Seismic data modeling

    Currently, there is the following tendency in the oil and gas industry: the largest and obvious oil and gas structures are already revealed and drilled, and investigation and development of more difficult geological objects are required for reproducing and accumulating the resource base. In this regard, requirements to seismic survey for solving not only structure-related tasks, but also lithology, detection and assessment of fluids, etc. significantly increase.

 

    Such tasks mean studying dynamic characteristics of different recorded waves, followed by detailed study of elastic vibration distribution in complicated mediums.

 

    Such surveys require reliable results of solving a direct seismic task, that can be obtained in many cases of complicated mediums with either mathematical, or physical modeling of wave fields. These methods have various nature that defines their scopes of application. Mathematical modeling in general is more convenient and cheap, but in some cases it can't provide reliable results; such tasks require using physical modeling. It should be noted that these methods don't contradict, but successfully complement each other.

 

    Our company renders services on seismic data modeling by both methods:

  • Mathematical modeling

  • Physical modeling

Physical modeling

 

    Unlike mathematical modeling, physical one is based on radiating and recording various surface (volume) vibrations of the real physical model. This method is based on scaling of the studied medium to the sizes of the laboratory model according to rigidly set criteria of similarity. Carrying out physical modeling at high quality technological level taking into account capacities of the used equipment, as well as some property features of model and real materials, allows to obtain extremely qualitative and realistic results.

 

    Missions:

  • Verifying the existing / creating new algorithms of mathematical modeling;

  • Solving a direct problem for complicated mediums;

  • Studying fractured, fluid-saturated and anisotropic mediums;

  • Modeling data of 4D seismic survey;

  • Obtaining 3C/9C data.

    Our company has a laboratory for physical modeling of wave fields, equipped with the only Russian automated hardware and software and modern equipment for creating various physical models, allowing solving a wide range of actual tasks.

 

Mathematical modeling

 

    This method is based on calculating the wave field (in case of dynamic modeling) or distance-time graphs of various waves (in case of kinematic modeling) for random structure mediums and any data acquisition systems. Calculation is made either on PC, or on specialized computing cluster.

 

    Missions:

  • Optimizing field acquisition systems to increase reliability and informational content of surveys;

  • Selecting optimum procedures for processing seismic data and their parameters;

  • Checking algorithms of processing seismic data and approaches to their interpretation;

  • Detailed analysis of real wave field;

  • Creating velocity models.

    Our specialists have a vast work experience in the specialized software for modeling wave fields, as well as using the obtained materials for solving the current applied and scientific tasks.