For details, please refer to the manuscript titled "A Computer Program for Practical Semivariogram Modeling and Ordinary Kriging: A Case Study of Porosity Distribution in an Oil Field" submitted for publication in OPEN GEOSCIENCES JOURNAL in May, 2017.





Step 1. Click and download the JeoStat_2017.0 setup file to local disk (For example: C:\Users\Desktop)



Step 2. The JeoStat_2017.0 file includes setup file to install the JeoStat.




Step 3. Please click the setup file to install JeoStat to local drive.


Step 4. When installation is complete, please run the JeoStat from the Start menu or Start screen.




Step 5. The JeoStat_2017.0 setup file includes Sample Data file to perform demo analyses, please check the data file or prepare an ASCI file (*.txt, *.dat, *.csv) with headers lines followed by the data as a tab or a comma delimited. As shown below, the first header line is title. The second line should be a numerical value specifying the number of numerical variables in the data file. The next lines contain character identification labels. The following lines are considered as data points and must have numerical values per line.


Step 6. JeoStat main application form includes six tab screens. Please perform these analysis, respectively.


Importing data

Step 7. Click the Input File button to load data file to JeoStat and select the data file from the Dialog Box 1. Define a path and file name for the saving of results to the local drive from the Dialog Box 2. The path and file name is very important for the user, because the file name will be saved into the hard drive with various file extensions such as .stat for statistical analysis results, .var for semivariogram analysis results, .res for cross validation results and .grd for kriging results.

Step 8. Select and define variables required for the X (easting), Y (northing), elevation, variable label, dimension of analysis and transformation options from the combo box components and click the Read Data button.


Statistical Analysis

Step 9. Please Calculate and Plot button to compute and show up the statistical analyses results.




Semivariogram Modeling

Step 10. Please, firstly, input direction angle, tolerance angle, increment and number of lag to the related input box and then click the Calc. Experimental Semivariogram button to show up the Experimental Semivariogram on the picture box.


Step 11. Please select the variogram model type from the combo box firstly, then click and move the mouse on the picture box. Then click the Apply Semivariogram Model button.



Cross-Validation Test

Step 12. Please click the Cross Validation button and move the mouse on the Picture Box to show up Kriged and Observed value.



Kriging Estimates

Step 13. Please insert the grid sizes and other kriging parameters required for analysis related to the text boxes firstly, and then click the Start Kriging button to estimate values of grids.



Step 14. Please, firstly, check the Grid Node Editor and select the *.krg extended output file relevant that variable. Then, click and move the mouse to show up the estimated value on the labels.

Visualization of the Otputs

Step 15. Please, fistly, click the Map Analyses button to contouring map on tab screen. Then, input a value for the contour interval to the text box and click the Refresh button to show up the map. If you see the contour value on map, please, click the Grid Node Editor and select the *.krg extended output file relevant that variable. Then, click and move the mouse to show up the estimated value on the labels.