Thickness Monitoring Piping Rotation Workflow

Thickness Monitoring Piping Rotation Workflow

This workflow describes the process of performing a rotation or flip on piping components. The TM Planning workflow and the TM Assessment workflow are applicable for all piping assets. However, for piping assets that are part of a pipe rotation strategy, the Piping Rotation workflow follows specific TM Planning and Assessment workflows. The Corrosion Analyst will review the corrosion analysis results and determine if a movement (rotation or flip) is necessary.

In the following workflow diagram, the blue text in a shape indicates that the corresponding description has been provided in the sections that follow the diagram. For more information, refer to the Interpreting the Workflow Diagrams topic in the APM Product Workflows documentation.
Note: For information on the personas associated with a APM module, refer to the APM Product Workflows documentation.


TM Planning

Persona: Analyst

TM Planning includes defining all of the elements required to execute rotation or flip of a piping asset. This includes defining a piping asset, setting up components, bands, and thickness monitoring locations based on the corrosion mechanisms affecting the circuit.

Piping Asset Setup

Persona: Analyst

Enable the piping rotation workflow and define values for the wall ratio preferences. In addition, you must set up analysis settings for the asset.

Create Components

Persona: Analyst

Create components for the piping asset. Components are basically TML groups that contain bands at defined locations. Components can be straight spools or elbows.

Create Bands

Persona: Analyst

Create bands for the piping component. Based on the location on the component, bands can be classified into center band, mirrored band, and odd bands. Elbows can also contain an additional type of band called the extrados band.

Create Nominal Measurements for TMLs

Persona: Analyst

Enter Nominal measurement values and the date when the measurement was taken for each TML. For new TMLs, document initial measurements.

Calculate Corrosion Analysis

Persona: Analyst

Use the new measurements to perform a full corrosion analysis to determine the controlling corrosion rate, remaining life, and next inspection date.

TM Assessment

Persona: Analyst

Over a period of time, as a piping asset erodes, an evaluation is carried out to determine if certain components need to be rotated or flipped to extend the life of the asset. This section includes the steps involved in analysis of corrosion data, creating and using what-if scenarios, and performing a rotation or flip on the components.

Rotate or Flip Component?

Persona: Analyst

Determine whether a rotation or flip is required for piping components based on the corrosion analysis for the piping asset.

Select Parameters for Movement

Persona: Analyst

Select the action that you want to perform (that is, rotate or flip), and then enter the parameters for the movement, such as Rate Method, Movement Date, and so on.

Create What-If Scenario?

Persona: Analyst

Determine if you want to create a What-If Scenario for evaluation.

What-If Scenario

Persona: Analyst

Create a What-If scenario for rotating or flipping the component.

Review What-If Scenarios

Persona: Analyst

Evaluate the scenarios and select the most optimal scenario for movement based on the analysis outputs.

Perform Movement from a Scenario?

Persona: Analyst

Determine if you want to perform a rotation or flip from the selected scenario.

Rotate or Flip the Component

Persona: Analyst

Perform a rotation or flip on the piping component.

Rotation Event

Persona: Analyst

An inspection is created for the asset for the Pipe Rotation Event.

Review Corrosion Analysis Results

Persona: Analyst

Review the results to determine if any follow-up action is necessary to ensure the integrity of the asset or improve asset performance.

Corrosion History

Persona: Analyst

The overall result of TM inspections is to provide Corrosion History, which is used primarily for long-term strategy evaluation and development.

This corrosion history can be evaluated through Core Analysis workflows or advanced strategy development methods, such as Risk Based Inspection (RBI).

Other APM Workflows

Persona: Analyst

For follow-up analysis, use Core Analysis.

Go to the Core Analysis: Asset Event Analysis workflow.

Go to the Core Analysis: Graph Analysis workflow.

Go to the Core Analysis: Query Analysis workflow.

Go to the Core Analysis: Report Analysis workflow.

Updated Corrosion Analysis

Persona: Analyst

The resultant corrosion analysis is created, and the associated TM task is updated with the next inspection date.