GES Modules

Structure Analysis

The Structure Analysis module displays interpretations in interactive maps and well-sections to instantly ensure the reliability of the results. Features including Well correlation, Structure Map and Isochore Map. Structure Analysis provides various means to facilitate stratigraphic analysis.

 

Well Correlation

Well Correlation enables users to interpret geological features from well logs and correlate similar features among multiple wells. It provides a cross-sectional view of key formations, and you can flatten surface on depth or horizon, multiple sets of horizons can be displayed simultaneously.

 

Fig. An example of well correlation in GES

 

Steps to perform Well Correlation in GES:

· Go to Geological Evaluation Scenario/Geology & Modeling Scenario → Geology Evaluation → Well Correlation

· Choose Create Cross Section Line → Click Select well → Click OK

· Set Vertical Scale, Horizontal Scale and Depth Range

· Click Flatten Mode to select flatten mode

· Click Add Track to add well logs and discrete log etc. → Click well logs column in window → Go to Property pane → Select Data Name in Basic Label

· Go to Well picks Editing Ribbon → Select stratigraphy scheme and surface → Active Edit →left click and drag the selected surface to change surface depth

· Click Ghost Curve → left click on the well logs track and drag the depth interval, the interval will be duplicated → Move this duplicated curve between wells to help user to contrast curve more clearly

 

Structure Map

Structure map presents structural information on a map. In GES, you can create a structure map by using well picks data, line data or points data. You can control the structure trend by using trend surface and contour line, there are 5 algorithms you can choose from when creating a map.

 

Fig. An example of using point data to create a structure map

 

Fig. An example of using line data to create structure map

 

Steps to perform Structure Map in GES:

· Go to Geological Evaluation Scenario/Geology & Modeling Scenario → Geology Evaluation → Structure Map

· Select Input data, Constrain and Boundary, enter the Output name in Common label

· Set Grid Increment → Select Algorithm in Mapping Settings Label

· Go to Visual Settings label, click Estimate button, Min and Max value will be automatically generated, you can also input the value manually

· Set Interval and click Apply

· Choose the template for Color table

· Set Contour Line Nodes, normally set to 2 → Click OK

· Go to Scene pane, click structure, the contour ribbon bar will be shown, and you can edit contour line and fill in this ribbon bar

 

Isochore Map

Stratum isochore maps are contour maps drawn by stratum thickness. Through isochore map, researchers can know stratigraphy distribution and stratum thickness change, so as to help researchers know better structure and provenance direction.

 

 

Fig. Isochore map: no constraint (left) and using control line(right)

 

Fig. Isochore map: no constraint (left) and using unconformity line(right)

 

Steps to perform Isochore Map in GES:

· Go to Geological Evaluation scenario/Geology & Modeling Scenario Geology Evaluation Isochore Map

· Select Input data, Constrain and Boundary, enter the Output name in Common label

· Set Grid Increment Select Algorithm in Mapping Settings Label

· Go to Visual Settings label, click Estimate button, Min and Max value will be automatically generated, you can also input the value manually

· Set Interval and click Apply

· Choose the template for Color table

· Set Contour Line Nodes, normally set to 2 Click OK

· Go to Scene pane, click Isochore, the contour ribbon bar will be shown, and you can edit contour line and fill in this ribbon bar