Course 5: Building 2D Stratigraphic Modeling Relationships

Well editing in Model Builder will open Well Editor and updates will translate to both applications Synthetics can be generated from log models

Add cross section

From logM seismic modeling tab > DC Stratigraphic Modeling in Model Builder window > select File> New Select 4 wells DC Wells you want to use They will be displayed in the order picked > OK

Select units > Calculate from well XY locations Define and calculate Select projected option

In this example they reorient the line into an east-west orientation by dragging the red dots on the end of the profile line.

Click OK to display in Model Builder

Start on the add & edit correlations window add new ones and isolated body and split correlations Slecting curves to display and ad asl depth tack to curve 3 Add annotation Click Options > Annotate correlations (all Wells) View > to Scale Mode

Edit > Edit Correlations > change anything > OK

Pick top of coal (square does not appear to be in correct location; also looks like they’ve picked the base of the upper coal) Pick correlation selector

Click coal base: pick and pinch out by clicking Click correlation selector again > Channel 2 Base to activate

Use F5 and F6 keys to scroll up and down

F3 can be used to access a drop down box of correlations to delete

Press f5 to activate channel 2 silt correlation > select and pinch Enter search mode F4 > click bottom correlation > Use F2 to add a new correlation

Use F2 key to create new Correlation (top Channel) Add name and click OK Click to Add top Then F2 to add another correlation

Add and select a third correlation

After entering left side (pinch against channel) then split correlation (icon or F9)

Edit > Define Body Lithology > Select Limestone Red as the pattern Click between Wabeman and base Wabeman as indicated on the screen

Basically select your pattern and click in the open space between tops and bottoms of the formation of interest. Edit > Remove Body Lithology click to remove and slect new pattern (now save!)

Edit Well Symbols Click Edit menu in Model Builder > Well Select all (or individual wells)

Click Edit > Well Header > General tab > Dtatus drop down > select shut in

Click Location > Name of well to Shut In oil > OK And repeat process & save

Note changes in cross section and click save to save

Change curve displays: View > Select Curves > Clear all tracks > select gamma ray for track 1 > (etc by well as needed) > OK > zoom all (icon)

After zoom all

Start > Flatten Correlation Icon

Select Bottom Coal #1

Set velocity: Model > Set Isolated Body Information > click channel > change units as needed > Apply > Close Continue to set up trace model Model > Create Model > Confirm Strat Relns > Bottom removal (in this example)

Click in the black and white shale pinch out body Observe change from S to B Didn’t really understand what was going on here.

Make sure 100 traces > toggle on the Use Repeat Traces and then select the Specify Repeat Traces button > highlihgt all wells and select 5 for repeat traces > OK

Save Default and generate model

To customize display > File > plot setup > data area > toggble on “color on” check box

OK > toggle on color palette > open > palette selecttion to red-w-blue > OK > OK

General comment > etc > and rearrange using schematic mode > click detail mode icon > save to sgy

Change output file name > Save > Use workstation Big Endian Option

Plot setup > data area> interpolated logs in th wiggles section

OK > OK Note dialog boxes extend down into the shaded zone