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Typology: Exercises

2019/2020

Uploaded on 07/06/2020

ahmed-ayad
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Lab 5: Cross Plot
One of the interpretations methods is cross plot between 2 variables(log), and find
relationship between them.
One of famous cross plot interpretation is the Neutron-Density cross plot. This plot created
in labs to find lithology based on the relationship between these logs.
Objective: make cross plot between neutron and density and find the lithology.
Tasks:
1- Go to plot
2- Choose cross plot
3- The cross plot interface will appear.
4- Drag Drop the Neutron to the X axis and density log to the Y axis.
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Lab 5 : Cross Plot One of the interpretations methods is cross plot between 2 variables(log), and find relationship between them. One of famous cross plot interpretation is the Neutron-Density cross plot. This plot created in labs to find lithology based on the relationship between these logs. Objective : make cross plot between neutron and density and find the lithology. Tasks: 1 - Go to plot 2 - Choose cross plot 3 - The cross plot interface will appear. 4 - Drag Drop the Neutron to the X axis and density log to the Y axis.

5 - Now add the chart on the data by going to chart and select(double click to appear on the cross plot):

Schlumberger Por-11 & Por - 12, Neutron porosity vs Bulk Density, and TNPH

It should look like this

2 - Now mark the interval that you wish to draw on cross plot. 3 - You can choose right click on cross plot and chose selection only it will only show the data that you selected.

Add regression line: (for 4th^ Grade situdents) 1 - Right click on the cross plot area and select add regression You can find the equation in the lower part of the chart