MPT: Multiparametric Processing Tool

Introduction



Multiparametric Processing Tool software performs CRS (Common Reflection Surface) parameter search and stack for land and marine seismic datasets. As with the classical NMO (Normal Moveout) software, MPT leads to zero-offset sections. In the NMO method a stacked trace is computed taking into account traces in one CMP (Common Mid Point) gather only, MPT software uses a more general traveltime formulation that allows to stack super-gathers comprising a large number of traces. These traces do not necessarily belong to the same CMP gather. Selected traces have sources and receivers within a certain vicinity of the image point. Since CRS uses more traces to stack, the image is greatly improved.

MPT software leads to better imaging of structural sections than the traditional NMO/DMO based software, specially in areas with strong dipping reflectors, poor signal to noise ratio, low fold seismic data or noisy areas.




Characteristics
Segy I/O Standar SEGY I/O
  • Input and output files are in standar SEGY format.


Preprocesador Preprocessor
  • Interactive CMP coordinate calculator.
  • Interactive exclusion of selected traces.
  • Interactive surface velocity input.
  • Surface velocities can be imported from an ascii file.


CRS params search CRS parameters search
  • Fast automatic VNMO calculation.
  • Emergence angle, Knip and Kn calculation.
  • 3 parameter local optimization.


Interactive Aperture Picking

 Interactive aperture picking
  • User can pick CMP and ZO apertures interactively and save the picks to a data base.
  • Picks can be edited later or interpolated to extend them to all domain.

Interactive VNMO limits picking

 Interactive VNMO limits picking
  • In order optimice the automatic VNMO search and avoid undesirable noise, i.e. multiples, user can restric the NMO velocity search using the interactive VNMO limits picking utilitie.
  • VNMO search is carried out inside the limits selected by user as time variant functions.

Plotting

 Impressive Plotting Capabilities
  • Wiggle and Color display modes.
  • Sort headers as desired.
  • Create movies.
  • Fast Fourier Transform.
  • Direct conexion to the project data base to easy select input files.




Features

File I/O
  • Standar SEGY
Preprocessor
  • 1D CMP coordinate calculation.
  • Interactive selection of inclusion band.
  • Interactive exclusion of selected traces.
  • Interactive surface velocity input.
  • Import module for surface velocities from ascii file.
CRS-2D parameter search
  • Comprehensive GUI for input parameters.
  • Fast automatic VNMO search.
  • Fast automacit ANGLE, KNIP and KN search.
  • 3 parameter optimization algorithm.
Stacking routines
  • CMP stacking from VNMO velocities without NMO stretch efect.
  • 2 parameters stack (Angle and Knip).
  • 3 parameters stack (Angle, Kn and Knip).
Interactive picking
  • CMP aperture selection.
  • ZO aperture selection.
  • VNMO search limits selection.
Coherence filter design
  • Impressive GUI for coherence based filter design.
  • The filter can be used to apply optimization to specific events.
Other processing routines
  • Trace mix.
  • FFT and IFFT transforms.
  • FK and IFK transforms.


Contact Information