PL FFS Details Page - Inspection Details and Defects
- 25 Nov 2024
- 5 Minutes to read
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PL FFS Details Page - Inspection Details and Defects
- Updated on 25 Nov 2024
- 5 Minutes to read
- Contributors
- Print
- DarkLight
- PDF
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This overview will explain how to use and interpret the IMS PLSS FFS Details page.
To open the FSS Module click on the FFS icon 
in the header of the desired Pipeline, Flowline, Pipeline Jumper with Carbon Steel Pipe or CPA Pipe Equipment Details page.
The FFS Details Page is divided into multiple sections. The first one is:
Inspection Details and Defects
This section consists of the Assessment tab and the following sub-tabs related to pipe tally data:
- Defects
- Depth summary
- Defect Classification summary
- Nom WT Comparison
Assessment
The Assessment tab is where the ECH and Inspection data are displayed.
| Header | Description |
|---|---|
| Inspection Date | The date of the Inspection is the date of your ILI run. |
Contractor | The name of the contractor. |
Inspection type | A drop-down menu containing the following options:
Sample Inspection has been added for NPP. |
Inspection tool | A drop-down menu containing the following options:
|
Reporting Threshold | A number for the reporting threshold, greater than zero. Defects below the reporting threshold will not be recorded by the inspection technique. |
Reporting Threshold Unit | A drop-down containing [%wt] and mm (or inch for the imperial units). |
Sizing inaccuracy | Enter a number here if the Sizing Inauracy Unit selected is "[%wt]", "mm" or "inch". This value will be added to the Defect Depth when the Corrosion Tolerance is calculated. In case "Specify per defect" has been specified, the accuracy for each defect type has to be specified. |
Sizing inaccuracy Unit | A drop-down menu containing the following options:
|
Assessment Code | A drop-down menu containing the following options:
|
Orientation reference in center | Available only if the Assessment Code selected is one of the following:
Tick the box if the orientation is in the center.
|
Step aggression | Available only if the Assessment Code selected is one of the following:
|
Location | If the inspection type is equal to Direct-Inspection then the location has to be specified. In case IP run has been selected then this field cannot be filled in. |
Coverage | If the inspection type is equal to Direct-Inspection then the Coverage has to be specified. In case IP run has been selected then this field cannot be filled in. |
KP0 | The pig launcher location. Setting this to a non-zero value will offset all defects by that value. |
KPend | Pig receiver, used like KP0 in case of a reverse IP run. |
| Coverage start distance | Available only for Inspection Types:
|
| Coverage end distance | Available only for Inspection Types:
|
Wall Side | If the Inspection type is IP-run or Sample inspection, this field will show the fixed string Int/Ext. For a Direct Inspection a listbox containing:
|
Comment | A user comment for the Inspection. |
| ECH description | The description of the ECH. |
| ECH Approval Status | The Approval status of the ECH. |
| ECH Inspector | The Inspector that created the ECH. |
Adding Assessment via ECH
To add the Inspection information to the Assessment tab and create an ECH:
- Click the Plus button.
- Fill in the ECH parameters and FFS Inspection Details in the pop-up window. Note: the Condition Date on the left side is the date of the ILI run.
- Click Save.
After clicking Save, the ECH Details page will open. The FSS Inspection data you entered while creating the ECH wil be displayed in the FFS Inspection sectionbon the ECH Details page.
The next step is to add Defects via the Defects section. The column headers of the Defects section on the ECH Details page are self-explanatory. Note that:
- The columns from Defect ID to Defect depth contain a numerical value.
- The column Wall side should contain one of the options "Int", "Ext, or Mech." for Internal, External or Mechanical Defects.
Adding Defects via ECH
To add a Defect / ILI data:
- Scroll to the Defects section.
- Click the Plus button.
- Fill in the Defects data in the pop-up window.
- Click Save.
Importing Defects via ECH
You will first need to export an existing Defect and then update the Excel file with your new Defect information.
To Export the Defect:
- Select the Defect you want to export.
- Click on the Export button.
Select the Defect and click the Export button.
- Update the data in the exported Excel file.
For this example, you can use an already filled-in case study that you can download here:
To import the Defect / ILI data:
- Click the Import button to Import it from an Excel file.
- Click the Browse button and upload the Excel file.
- Click Next.
- Check the headers and UoMs in the Excel file and match the import fields.
- Click Next.
The number of data points found in the Excel file will be shown.
- Click Next.
- Click Done!
The Defect data will be listed in the ECH Defects section as well as on the FFS Details page in the Defects Tab. After reviewing the data, Final approve the ECH.
Returning to the FFS Details Page from the ECH
Once your FSS Inspection and Defects data are added, the data should be further analyzed in the FFS module.
To return to the FSS Details Page:
- On the ECH Details page, navigate to the FFS Inspection section.
- Click See FFS Assessment.
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Running the FFS Analysis
After the Defect data has been specified, the next step is to run the FFS Analysis from the Defects tab in the FFS Module.
- Scroll to the Defects Tab in the Inspection data and Defects section of the FFS Details PAge.
- Click the Analyse button below the list of Defects.
After the data analysis has been successfully done, the results of the analysis are available in the following Tabs: Depth Summary, Defect Classification Summary, and Nom WT Comparison.
Depth Summary
Under this tab, the Inspection data is shown as measured, which means without the addition of the Sizing Accuracy. Here you can see the number of Defects per percentage of Measured Depth.
In the example below, the second row is showing that on the Measured Depth greater or equal to 10% and less than 20%, for this wall loss, there are 55 internal defects and 337 external defects.
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Defect Classification Summary
If the Defect Classification data is available in the Defects Tab, that information will be displayed in the Defect Classification Summary tab.
Nom WT Comparison
The IP Nom.WT column is the data from the IP run. The Design Nom.WT is the data as specified by the user in the Design Data module or section FFS, Pipeline data. The value in IP Nom.WT and Design Nom.WT should match. The difference is shown in the last column, after sorting this column it can be checked whether there are differences or not. It’s important to have the sectioning correct in case no defects are present in a section. Then the nominal Wall Thickness from the design data or sectioning will be used.
Rerunning the FFS Analysis
After saving changes to an inspection record, the record automatically gets re-analyzed. After saving changes to a single Defect, or after importing IP data from an Excel file the data is not automatically re-analysed.
To re-analyse:
- Click the Analyse button.
The status of the selected inspection record, whether it has been analyzed or not, is displayed next to the button.
Note: If you enter a large number of Defects in the Ranked Defects chart, it may take longer for all of the Defects to be displayed.
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