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Three-dimensional stratum model construction method based on cost function global control

A cost function, three-dimensional stratigraphic technology, applied in seismic signal processing and other directions, can solve problems such as rough stratigraphic model

Inactive Publication Date: 2016-08-24
GEOSEISMIC SIGNAL CORP
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  • Application Information

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Problems solved by technology

[0002] The establishment of the traditional 3D stratigraphic model is based on the limited horizons obtained by conventional interpretation methods, and its focus is local, so the stratigraphic model obtained is also rough

Method used

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  • Three-dimensional stratum model construction method based on cost function global control
  • Three-dimensional stratum model construction method based on cost function global control
  • Three-dimensional stratum model construction method based on cost function global control

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Embodiment Construction

[0015] The present invention will be further described below with reference to specific examples.

[0016] A method for constructing a three-dimensional formation model based on global control of a cost function in an embodiment of the present invention includes the following steps: S1, creation of a bin grid: sampling comes from a regular square grid G ​​in XY geodetic coordinates, All points along a line are used, and the grid bin size SG can be set to 1, in which case a bin is the same as the seismic sampling interval and all seismic sampling points are Participated in the calculation; S2. Calculation of correlation between seismic traces: To calculate the connection between seismic sampling points, first of all, calculate the correlation image (X1, X2) between each adjacent two traces in the regular grid G, and the two traces of seismic data X1 The correlation image I(X1, X2) between X2 is calculated from some columns of correlation coefficient values ​​of N1 in X1 and N2 ...

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Abstract

The present invention relates to a three-dimensional stratum model construction method based on cost function global control. The method comprises the following steps: S1, creation of surface element grids; S2, calculation of correlative relationship between earthquake channels; S3, calculation of global position points; and S4, optimization calculation of an optimum model by using the cost function. The three-dimensional stratum model construction method based on cost function global control takes into account from a global perspective and directly calculates the whole earthquake data to be a three-dimensional stratum model so as to finely extract the isochronous stratum information included in the earthquake data.

Description

technical field [0001] The invention relates to a method for building a three-dimensional formation model based on global control of a cost function. Background technique [0002] The establishment of the traditional 3D stratigraphic model is based on the limited horizons obtained by conventional interpretation methods, and its focus is local, so the stratigraphic model obtained is also rough. Contents of the invention [0003] In view of the above-mentioned problems existing in the prior art, the main purpose of the present invention is to solve the defects of the prior art. The present invention provides a method for building a three-dimensional formation model based on the global control of the cost function. Considering that the entire block of seismic data is directly calculated as a three-dimensional stratigraphic model, so as to finely extract the isochronous stratigraphic information contained in the seismic data. [0004] The invention provides a method for const...

Claims

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Application Information

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IPC IPC(8): G01V1/28
Inventor 邱智海刘林
Owner GEOSEISMIC SIGNAL CORP