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  • Risk Based Inspection Training Introduction 1

    Risk Based Inspection 1Glycol Dehydration Unit 2Accessing Meridium 3

    Corrosion Engineering and Data Gathering 5Step A1 6

    Creating RBI System 6Step A2 12

    Defining Critical Process Parameters 12Creating a Process Component 12Creating Critical Process Parameters (CPPs) for the Process Component 13

    Assigning Critical Process Parameters (CPPs) to the RBI System 15Step A3 17

    Assigning Potential Degradation Mechanisms (PDMs) 17Step A4 21

    Creating RBI Components and Assigning to a RBI System 21Validating Potential Degradation Mechanisms 24

    Step A5 30Creating Inspection Profiles 30

    Step A6 32Creating TML Groups 32Creating TMLs 34Assign RBI Component to a TML Group 37

    Risk Assessment 38Step B4 39

    Performing Risk Assessment 39Inspection Strategy Management 57

    Steps C1, C2 58Generating RBI Recommendations 58Consolidating RBI Recommendations 61Creating Tasks 65

    Re-evaluating Risk and Inspection Strategies 67Re-evaluating Risk and Inspection Strategies 68

    Overall RBI Workflow 73

  • Revision History

    Version Date Author Description 0 30-Aug-2007 V. Nihalani Initial draft 1 15-Sep-2007 M. Gurley General Edits based on client

    review 2 16-Feb-2008 M. Gurley Removed other inspection types

    section. Altered TM information. 3 10-Aug-2008 D. Rodas,

    M. Gurley General Review. Added Safety Consequence Steps.

    4 18-Dec-2008 D. Rodas, M. Gurley

    Removed TM and IM subjects and included new enhancements.

    5 25-Jan-2009 D. Rodas Included how to create TMLs assigned to Sub Components

    6 13-Sep-2011 D. Rodas General Review after version upgrade (from V321 to V342)

  • Introduction

    Copyright Meridium, Inc. 2007. All rights reserved. Confidential and proprietary information of Meridium, Inc. Published Sep. 2011.

    Page 1

    Risk Based Inspectiony In this training, you will learn to use Meridiums Risk Based Inspection (RBI) Functionality. You will be led through the RBI workflow, which involves not only the Risk Assessment Functionality, but Thickness Monitoring and Inspection Management as well. Nevertheless the software training will focus on Meridium RBI functionalities only, once Thickness Monitoring and Inspection Manager are covered by an specific training module.

    The simplified RBI Workflow

    1. Create RBI System 2. Assign CPPs to RBI System 3. Assign PDMs to RBI System 4. Identify and Create RBI Components 5. Assign RBI Components to RBI System 6. Validate PDMs and CPPs for RBI Components 7. Capture additional operating and design data for

    RBI Components 8. Create inspection profiles (if needed) 9. Create TMLs (if needed) 10. Create RBI Analysis for RBI component 11. Perform Damage Mechanism Evaluations 12. Perform Consequence Evaluations 13. Generate RBI Recommendations 14. Review and reconcile RBI recommendations 15. Create inspection tasks 16. Execute inspection tasks 17. Document inspections 18. Go to step 10

    Upfront Engineering

    and Data Gathering

    Sustainable RBI Process

  • Introduction

    Copyright Meridium, Inc. 2007. All rights reserved. Confidential and proprietary information of Meridium, Inc. Published Sep.2011

    Page 2

    Glycol Dehydration Unit A Glycol Dehydration Unit will be used the primary example in this course. This Unit is divided into a High Pressure Contacting System and the Low Pressure Regeneration System. The Low Pressure system will be analyzed. A simplified flow diagram is shown below.

  • Introduction

    Copyright Meridium, Inc. 2007. All rights reserved. Confidential and proprietary information of Meridium, Inc. Published Sep. 2011.

    Page 3

    Accessing Meridium

    1) Choose All Programs >Meridium APM Applications > APM Framework from the Start menu.

    2) Type MIADMIN for User ID and Password.

    3) Click the Show Advanced Options link and choose a data source, as directed by your instructor.

    4) Click the Login link.

  • Introduction

    Copyright Meridium, Inc. 2007. All rights reserved. Confidential and proprietary information of Meridium, Inc. Published Sep.2011

    Page 4

    5) The SABIC Risk Based Inspection Home Page is displayed.

    OR

    6) If a different Home Page is displayed, then select Groups >>Risk Based Inspection from the Home Page Tasks menu.

  • Copyright Meridium, Inc. 2007. All rights reserved. Confidential and proprietary information of Meridium, Inc. Published Sep. 2011.

    Page 5

    Corrosion Engineering

    And Data Gathering (A)

  • StepA1

    Copyright Meridium, Inc. 2007. All rights reserved. Confidential and proprietary information of Meridium, Inc. Published Sep.2011

    Page 6

    Creating a RBI System

    1) Click Go ToStrategy DevelopmentRisk Based Inspection from the top menu bar.

    2) The RBI Start page is displayed.

    The RBI Start page consists of the following links:

    Manage RBI Systems by Unit: Displays the RBI System List page, where you can open an existing RBI System record that is linked to a specific Unit record or create a new RBI System record that is linked to a specific Unit record.

    Manage RBI Components by Asset: Displays the RBI Component List page, where you can open an existing Criticality Calculator RBI Components record that is linked to a specific Asset record or create a new Criticality Calculator RBI Components record that is linked to a specific Asset record.

    Manage RBI Recommendations: Displays the RBI Component List page. Manage Potential Degradation Mechanisms: Displays the Search page,

    where you can perform an Advanced search to find Potential Degradation Mechanisms records.

  • Step A1

    Copyright Meridium, Inc. 2007. All rights reserved. Confidential and proprietary information of Meridium, Inc. Published Sep. 2011.

    Page 7

    Manage Strategy Logic Cases: Displays the Search page, where you can perform an Advanced search to find Strategy Logic Case records.

    Manage Data Mappings: Displays the Search page, where you can perform an Advanced search to find Field Mapping records.

    3) Click the Manage RBI Systems by Unit link:

    4) Note that the RBI Systems shall be created under the unit, which for SABIC is defined as the AFFILIATE

  • StepA1

    Copyright Meridium, Inc. 2007. All rights reserved. Confidential and proprietary information of Meridium, Inc. Published Sep.2011

    Page 8

    5) Click the Create System link

    6) Search for the Functional Location Glycol Dehydration Unit and click Select.

  • Step A1

    Copyright Meridium, Inc. 2007. All rights reserved. Confidential and proprietary information of Meridium, Inc. Published Sep. 2011.

    Page 9

    7) The RBI Unit View is displayed. Note that there is a RBI Explorer which shows the unit itself and the created RBI System. The RBI System ID will be initiated by CORRLP, respecting the current identification used by SABIC.

    Important Note: The screenshots shown in this training guide may not match your results because some values, such as the RBI System ID, are auto-generated by the system.

    8) Select the RBI System and observe that the RBI System datasheet is displayed (where some general information shall be filled) and also the Potential Degradation Mechanism panel (where the PDMs for the RBI System shall be assigned)

  • StepA1

    Copyright Meridium, Inc. 2007. All rights reserved. Confidential and proprietary information of Meridium, Inc. Published Sep.2011

    Page 10

    9) Enter the following values:

    Field ValueRBI System Description Low Pressure Glycol Regeneration SystemRBI System From High Pressure Absorption System RBI System To High Pressure Absorption System

    10) On the desktop of your training computer locate and open the following file:

    Reference Documents Training Text for Class.TXT. Select and copy all the text in the Comments section of the document.

    11) Paste the text into the Comments field on the Meridium Corrosion Loop data sheet.

  • Step A1

    Copyright Meridium, Inc. 2007. All rights reserved. Confidential and proprietary information of Meridium, Inc. Published Sep. 2011.

    Page 11

    12) Click the Save button on the toolbar.

    13) The saved record is displayed:

    You have now completed Step A1 of the Meridium RBI Workflow. In this lesson you defined a new RBI System.

  • Copyright Meridium, Inc. 2007. All rights reserved. Confidential and proprietary information of Meridium, Inc. Published Sep.2011

    Page 12

    Step A2

    Defining Critical Process Parameters The operating conditions, including any sensitivity analysis, used for the RBI assessment should be recorded as the operating limits for the assessment.

    Operating within the boundaries is critical to the validity of the RBI study as well as a good operating practice. It may be worthwhile to monitor key process parameters to determine whether operations are maintained within boundaries. Creating a Process Component

    1) Click on HOME (On Top Bar Menu) to go back to RBI Home Page.

    2) Click the Create New Process Component link from the Critical Process Parameters section

    3) A new Process Component record is displayed.

    4) Enter the following values:

    5) Save the record and Click on HOME to return to the RBI Home Page.

  • Copyright Meridium, Inc. 2007. All rights reserved. Confidential and proprietary information of Meridium, Inc. Published Sep. 2011.

    Page 13

    Step A2

    Creating Critical Process Parameters (CPPs) for the Process Component

    1) Click the Create New Critical Process Parameter Definition link from the Critical Process Variables section.

    2) A new Critical Process Parameters record is displayed. Enter the following values in the Identification section:

  • Copyright Meridium, Inc. 2007. All rights reserved. Confidential and proprietary information of Meridium, Inc. Published Sep.2011

    Page 14

    Step A2

    3) Enter the following values in the Limit Values section:

    4) Click on Save+ button to save the record and create another Critical Process Parameter

    5) Enter the following values in the Identification section:

    Caption Value CPP ID CPP-001-002 Description Chloride Concentration ML Workflow CPV Sampling Frequency Six Hours Sample Reading - Aggregation Mode Average Unit of Measure Part Per Million (PPM)

    Process Component Name Glycol Regeneration System

    6) Enter the following values in the Limit Values section:

    Caption Value Considerations

    Upper Level 3 25 Significant Risk of CLSCC

    Upper Level 2 10 Higher Potential of CLSCC with SS

    Upper Level 1 5 Result in Potential of CLSCC with SS

    7) Click Save to save the record

  • Copyright Meridium, Inc. 2007. All rights reserved. Confidential and proprietary information of Meridium, Inc. Published Sep. 2011.

    Page 15

    Step A2

    Assigning Critical Process Parameters (CPPs) to the RBI System

    1) Return to the RBI Home Page. Click the Assign CPP to RBI System link from the Critical Process Parameter section.

    2) The System will display a list of Corrosion Loops. Locate the RBI System you created in the previous lesson and click its Assign CPP link.

    3) In the Record Explorer, right click on Measurement Location and select Find an Existing Measurement Location to link.

  • Copyright Meridium, Inc. 2007. All rights reserved. Confidential and proprietary information of Meridium, Inc. Published Sep.2011

    Page 16

    Step A2

    4) The Simple Search Dialog is displayed and the Measurement Location populates the Search In field. Click the Find Now button.

    5) All existing Measurement Locations are listed. Press the Ctrl button to multi-select the Measurement Locations you created in the previous lesson, and click the Link to Selected Record button.

    6) The selected Measurement Locations are now shown listed under the Measurement Locations node in the Record Explorer.

    You have now completed Step A2 of the Meridium RBI Workflow. In this lesson, you defined Critical Process Parameters and assigned them to a RBI System.

  • Copyright Meridium, Inc. 2007. All rights reserved. Confidential and proprietary information of Meridium, Inc. Published Sep. 2011.

    Page 17

    Step A3

    Assigning Potential Degradation Mechanisms (PDMs)

    1) Go to the RBI Start Page.

    2) Click in Manage RBI Systems by Unit.

    3) Locate the Glycol Dehydration Unit as the Affiliate.

    4) Find the link to the RBI System previously created and click on it.

  • Copyright Meridium, Inc. 2007. All rights reserved. Confidential and proprietary information of Meridium, Inc. Published Sep.2011

    Page 18

    Step A3

    5) A Master-Detail form is displayed. The Master pane displays the Assign Pot Deg Mech datasheet and the Detail pane lists any linked Potential Degradation Mechanism records. In this case, there are no records currently linked, so click the link button on the toolbar.

    6) The Simple Search dialog is displayed and Potential Degradation Mechanisms populates the Search In field. Click the Find Now button.

  • Copyright Meridium, Inc. 2007. All rights reserved. Confidential and proprietary information of Meridium, Inc. Published Sep. 2011.

    Page 19

    Step A3

    7) All existing Potential Degradation Mechanisms are listed. Press the Ctrl button and multi-select the following PDMs:

    a) Criticality Calculator External Corrosion

    b) Criticality Calculator Internal Corrosion

    c) Ext Chloride SCC

    Note: You must select the Criticality Calculator External Corrosion and the Criticality Calculator Internal Corrosion PDMs for all analyses.

    8) Click the Select button at the bottom of the Simple Search dialog.

  • Copyright Meridium, Inc. 2007. All rights reserved. Confidential and proprietary information of Meridium, Inc. Published Sep.2011

    Page 20

    Step A3

    9) The Master-Detail form is displayed once again and the linked PDMs are listed in the Detail pane. Click the Save button on the toolbar.

    You have now completed Step A3 of the Meridium RBI Workflow. In this lesson you defined Potential Degradation Mechanisms for the RBI System.

  • Copyright Meridium, Inc. 2007. All rights reserved. Confidential and proprietary information of Meridium, Inc. Published Sep. 2011.

    Page 21

    Step A4

    Creating RBI Components for RBI System Equipment Your RBI System will consist of the following Fixed Assets, all of which have been defined in the database, and for which Functional Locations have been specified:

    Pressure Vessel D-101 Process Pipe PI-10711, PI-10712, PI-10713, PI-10714 Shell and Tube Heat Exchanger E-102

    Steps:

    1) From the previous lesson. Click in Create RBI Components on Components Tasks.

    2) See the search screen and click in Find Now to search for the asset.

  • Copyright Meridium, Inc. 2007. All rights reserved. Confidential and proprietary information of Meridium, Inc. Published Sep.2011

    Page 22

    Step A4

    3) Search for D-101 on the Pressure Vessel family and click Select.

    4) Select Cylindrical Shell and Component Family and Pressure Vessel as Component Type.

  • Copyright Meridium, Inc. 2007. All rights reserved. Confidential and proprietary information of Meridium, Inc. Published Sep. 2011.

    Page 23

    Step A4

    5) Observe that the RBI Component for D-101 was created under the related RBI System.

    6) Repeat steps 1 5 in order to include the following RBI Components in this RBI System.

    Asset RBI Component Family RBI Component Type

    E-102 (S&T Heat Exchanger) Cylindrical Shell Heat Exchanger Channel PI-10711 (Process Pipe) Piping 8 Pipe

    PI-10712 (Process Pipe) Piping 8 Pipe

    PI-10713 (Process Pipe) Piping 4 Pipe

    PI-10714 (Process Pipe) Piping 4 Pipe

    7) After completing step 7, the RBI System should look like the following:

  • Copyright Meridium, Inc. 2007. All rights reserved. Confidential and proprietary information of Meridium, Inc. Published Sep.2011

    Page 24

    Step A4a / A4b

    Validating Potential Degradation Mechanisms and Capturing Design and Process Data for RBI Components

    1) From the previous lesson. Select the RBI Component for D-101.

    2) Enter the following values for Component Description and Component Start Date:

  • Copyright Meridium, Inc. 2007. All rights reserved. Confidential and proprietary information of Meridium, Inc. Published Sep. 2011.

    Page 25

    Step A4a / A4b

    3) Enter the following values in the Operating and Process tab:

    4) Enter the following values in the Design Details tab:

  • Copyright Meridium, Inc. 2007. All rights reserved. Confidential and proprietary information of Meridium, Inc. Published Sep.2011

    Page 26

    Step A4a / A4b

    5) Enter the following values in the Corrosion Data tab:

    6) Note that all of the Potential Degradation Mechanisms that were assigned to the Corrosion Loop have been inherited by the RBI Component. However, In this case, historical information indicates that internal erosion is a Potential Degradation Mechanism for this particular vessel as well. Click the Link button in the lower pane to search for that PDM.

    \

  • Copyright Meridium, Inc. 2007. All rights reserved. Confidential and proprietary information of Meridium, Inc. Published Sep. 2011.

    Page 27

    Step A4a / A4b

    7) The Simple Search dialog is displayed. Click the Find Now button to list all existing Potential Degradation Mechanisms.

    8) Select the Erosion PDM and click the Link button

  • Copyright Meridium, Inc. 2007. All rights reserved. Confidential and proprietary information of Meridium, Inc. Published Sep.2011

    Page 28

    Step A4a / A4b

    9) The RBI Component now has four PDMs rather than the original three that were inherited from the RBI System. Save the Record.

    10) To verify that the Critical Process Parameters (Measurement Locations) have also been assigned to the RBI Component, click the Search button on the toolbar.

    11) Search for the D-101 RBI Component.

  • Copyright Meridium, Inc. 2007. All rights reserved. Confidential and proprietary information of Meridium, Inc. Published Sep. 2011.

    Page 29

    Step A4a / A4b

    12) When the RBI Component is displayed in the Record Explorer, the Measurement Locations (CPPs) that were assigned to the RBI System should be listed.

    13) When the RBI Component is displayed in the Record Explorer, the Measurement Locations (CPPs) that were assigned to the Corrosion Loop should be listed.

    You have now completed step A4 of the Meridium RBI Workflow. In these lessons, you created RBI Components, assigned them to the RBI System, and validated Potential Degradation Mechanisms for them.

  • Copyright Meridium, Inc. 2007. All rights reserved. Confidential and proprietary information of Meridium, Inc. Published Sep.2011

    Page 30

    Step A5

    Next, you will create an Inspection Profile for D-101. An Inspection Profile consists of Profile Items, which correspond to the components of the given piece of equipment that need to be inspected. If a component is listed as a Profile Item, then a Finding will be auto-generated for it when a new Inspection Document is created for the equipment.

    Creating Inspection Profiles

    1) Search for and open Pressure Vessel D-101.

    14) Choose Inspection >>Manage Profiles from the Associated Pages menu.

  • Copyright Meridium, Inc. 2007. All rights reserved. Confidential and proprietary information of Meridium, Inc. Published Sep. 2011.

    Page 31

    Step A5

    15) On the Manage Equipment Profile dialog, enter the following values:

    16) Click the Save button on the toolbar.

    17) Once again, search for and open Pressure Vessel D-101. Expand Inspection Profile in the Record Explorer to display the three newly created Profile Items.

    Important Note: You may enter TMLs, Measurements, and Inspection Profiles for all equipment in the RBI System. At this point, your instructor may ask you to enter information for additional equipment in the RBI System.

    18) Return to the Home Page.

    You have now completed Step A5 of the Meridium RBI Workflow. In this lesson you created Inspection Profile Items

  • Copyright Meridium, Inc. 2007. All rights reserved. Confidential and proprietary information of Meridium, Inc. Published Sep.2011

    Page 32

    Next, you will create a set of TMLs (Thickness Monitoring Location) for D-101. A TML consists of defined physical locations in which thickness readings are going to be taken.

    The TMLs shall be created under a TML Group. TML Group is the functionality in Meridium that allow the user to group different sets of TMLs considering common characteristics. The user may create TML Groups for the shell, the heads, the nozzles, etc.

    The TML Groups must be linked to an RBI Component in order to create RBI analysis with corrosion rate values automatically from valid measurement data.

    Creating TML Groups

    1) Continuing from the previous lesson. Right Click on TML Group family and select Create a new TML Group to link to D-101.

  • Copyright Meridium, Inc. 2007. All rights reserved. Confidential and proprietary information of Meridium, Inc. Published Sep. 2011.

    Page 33

    2) Type D-101-Shell as description.

    3) Create another TML Group and type D-101-Head as description.

    4) On the record explorer, the record should look like the following:

  • Copyright Meridium, Inc. 2007. All rights reserved. Confidential and proprietary information of Meridium, Inc. Published Sep.2011

    Page 34

    Creating TMLs

    In order to create TMLs, the Thickness Monitoring module will be used.

    1) Click in Thickness Monitoring thorough the Go To Menu as the following:

    2) The TM Start Page is displayed. Click in TMLs/Measurements.

  • Copyright Meridium, Inc. 2007. All rights reserved. Confidential and proprietary information of Meridium, Inc. Published Sep. 2011.

    Page 35

    3) Search for the Pressure Vessel D-101 and click Open.

    4) Select the TML Group D-101-Shell on the TM Explorer. Click on the icon Create TML on the TML Panel.

  • Copyright Meridium, Inc. 2007. All rights reserved. Confidential and proprietary information of Meridium, Inc. Published Sep.2011

    Page 36

    5) Create a TML with the TML ID D-101-SH-001, TML Analysis Type UT and Design Code ASME VIII Div 1.

    6) Repeating the steps 4 and 5, create the following TMLs:

    a. D-101-SH-002

    b. D-101-SH-003

    c. D-101-SH-004

  • Copyright Meridium, Inc. 2007. All rights reserved. Confidential and proprietary information of Meridium, Inc. Published Sep. 2011.

    Page 37

    Assign RBI Component to a TML Group

    1) From the previous lesson, click TML Group > Map RBI Components from Associated pages.

    2) From the pick list for RBI Components, choose the one which the TML Group should be mapped with.

    You have now completed part of the Step A6 of the Meridium RBI Workflow. In this lesson you created TMLs associated to a TML Group. Also you mapped the TML Group with the associated RBI Component.

  • Copyright Meridium, Inc. 2007. All rights reserved. Confidential and proprietary information of Meridium, Inc. Published Sep.2011

    Page 38

    Risk Assessment (B)

  • Copyright Meridium, Inc. 2007. All rights reserved. Confidential and proprietary information of Meridium, Inc. Published Sep. 2011.

    Page 39

    Step B4

    Performing Risk Assessment

    1) Go to the RBI Start Page by clicking Go ToStrategy DevelopmentRisk Based Inspection

    2) Click the Manage RBI Components by Asset link.

  • Copyright Meridium, Inc. 2007. All rights reserved. Confidential and proprietary information of Meridium, Inc. Published Sep.2011

    Page 40

    Step B4

    3) In the resulting prompted query search for D-101 from the Asset Technical Number.

    4) Click Run Query.

    5) The results show the RBI Component for the asset D-101. Click on the RBI Component hyperlink to display it the RBI Asset View.

  • Copyright Meridium, Inc. 2007. All rights reserved. Confidential and proprietary information of Meridium, Inc. Published Sep. 2011.

    Page 41

    Step B4

    6) In this view we can see the Asset at the top level with its associated RBI Components underneath.

    7) Click on the RBI Component that we created earlier and on the Analysis Tasks menu, click Create Analysis.

  • Copyright Meridium, Inc. 2007. All rights reserved. Confidential and proprietary information of Meridium, Inc. Published Sep.2011

    Page 42

    Step B4

    8) A new Analysis record is now displayed under the RBI Component.

    9) In the RBI Component Datasheet portion of the screen, click through the various tabs to verify that the proper information has been mapped from the RBI Component to the RBI Analysis

  • Copyright Meridium, Inc. 2007. All rights reserved. Confidential and proprietary information of Meridium, Inc. Published Sep. 2011.

    Page 43

    Step B4

    10) In the Design Data tab, select a High Humidity level from the pick list

    11) The Analysis Results tab is blank since no calculations have been performed yet.

    In the middle pane, the Consequence Evaluations and Degradation Mechanism Evaluations are performed. The result of this process will be to calculate a Probability of Failure (POF) and Consequence of Failure (COF)

  • Copyright Meridium, Inc. 2007. All rights reserved. Confidential and proprietary information of Meridium, Inc. Published Sep.2011

    Page 44

    Step B4

    12) By default the Consequence Evaluation tab is selected. Click on the blank space on the flammable consequence to display the COF evaluation datasheet.

    13) The COF Evaluation data sheet is shown with the various consequence types on separate tabs.

  • Copyright Meridium, Inc. 2007. All rights reserved. Confidential and proprietary information of Meridium, Inc. Published Sep. 2011.

    Page 45

    Step B4

    14) Click on the Common tab. Note that the needed information has been mapped from the RBI Component that was created earlier.

    15) Click on the Flammable Consequence tab. This is a simple logical field to note if the RBI Component is near to an ignition source. Click this check box as shown below:

  • Copyright Meridium, Inc. 2007. All rights reserved. Confidential and proprietary information of Meridium, Inc. Published Sep.2011

    Page 46

    Step B4

    16) Click on the Toxic Consequence tab. Since there were no Toxic mixtures identified for this RBI component, these fields are blank. However, the user has the option to change these values and assess the consequence if a Toxic mixture was present.

    17) Click on the Environmental Consequence tab. Select the values as follow:

  • Copyright Meridium, Inc. 2007. All rights reserved. Confidential and proprietary information of Meridium, Inc. Published Sep. 2011.

    Page 47

    Step B4

    18) Click on the Economic Impact Consequence tab. Enter the following data:

    19) Click on the Safety/Heath Consequence tab. Enter the following data:.

  • Copyright Meridium, Inc. 2007. All rights reserved. Confidential and proprietary information of Meridium, Inc. Published Sep.2011

    Page 48

    Step B4

    20) Click on the Tank Bottom Env Conseq tab. Since this RBI Component is not a storage tank this data sheet is disabled.

    21) The same thing is valid for the Tube Bundle Consequence tab. Click the Save button.

  • Copyright Meridium, Inc. 2007. All rights reserved. Confidential and proprietary information of Meridium, Inc. Published Sep. 2011.

    Page 49

    Step B4

    22) The COF evaluation window disappears and now you can click on the Degradation Mechanism Evaluation tab. Note that there is an evaluation record for every PDM that was previously assigned to the RBI Component. The user has the option to add PDMs to be evaluated on the RBI Analysis record without assigning it to the RBI Component.

  • Copyright Meridium, Inc. 2007. All rights reserved. Confidential and proprietary information of Meridium, Inc. Published Sep.2011

    Page 50

    Step B4

    23) Click on the Criticality Calculator External Corrosion damage mechanism.

    24) The Main Tab is displayed. This tab contains the Damage Comments field, which shall be used to capture all assumptions and considerations done on the analysis process.

  • Copyright Meridium, Inc. 2007. All rights reserved. Confidential and proprietary information of Meridium, Inc. Published Sep. 2011.

    Page 51

    Step B4

    25) Click the Input tab and complete the data sheet as shown below. Click Save.

    26) Click on the Criticality Calculator Internal Corrosion damage mechanism.

  • Copyright Meridium, Inc. 2007. All rights reserved. Confidential and proprietary information of Meridium, Inc. Published Sep.2011

    Page 52

    Step B4

    27) Click the Input tab and complete the data sheet as shown below. Click Save.

    28) Click on the Erosion damage mechanism.

  • Copyright Meridium, Inc. 2007. All rights reserved. Confidential and proprietary information of Meridium, Inc. Published Sep. 2011.

    Page 53

    Step B4

    29) Verify the Main tab and complete the data sheet as shown below. Click Save.

    30) Click on the Ext Chloride SCC damage mechanism.

  • Copyright Meridium, Inc. 2007. All rights reserved. Confidential and proprietary information of Meridium, Inc. Published Sep.2011

    Page 54

    Step B4

    31) Verify the Main tab and complete the data sheet as shown below. Click Save.

    32) Now that all of the Degradation Mechanisms have been evaluated as well as all of the Consequences, you can calculate the POF and COF of the analysis. Click the Calculate Analysis link under the Analysis Tasks menu.

  • Copyright Meridium, Inc. 2007. All rights reserved. Confidential and proprietary information of Meridium, Inc. Published Sep. 2011.

    Page 55

    Step B4

    33) When the POF and COF of the analysis is calculated a dialogue window is displayed that shows the status of all individual family calculations.

    34) Click Close on the calculation status window.

    35) The RBI Analysis record should now look like the below:

  • Copyright Meridium, Inc. 2007. All rights reserved. Confidential and proprietary information of Meridium, Inc. Published Sep.2011

    Page 56

    Step B4

    36) Click on the Analysis results tab in the top section to see the rolled up results of the RBI Analysis.

    You have now completed Step B4 of the Meridium RBI Workflow. You performed an RBI Analysis by evaluating the Consequences and Damage Mechanisms for an RBI Component. It is important to note that RBI Assessments are typically performed on other RBI Components for the Equipment as well.

  • Copyright Meridium, Inc. 2007. All rights reserved. Confidential and proprietary information of Meridium, Inc. Published Sep. 2011.

    Page 57

    Step B4

    Inspection Strategy

    Management (C)

  • Copyright Meridium, Inc. 2007. All rights reserved. Confidential and proprietary information of Meridium, Inc. Published Sep.2011

    Page 58

    Steps C1, C2

    A Risk Assessment will be performed multiple times over a life of the Asset. However, the user will need to select one of the Assessments as the Risk Completed Analysis to indicate that he wishes to use that Analysis to generate RBI Recommendations that will then be used to finalize RBI Based Inspection Strategies.

    Generating RBI Recommendations

    1) Continuing from the previous lesson click on the Operations button at the top of the datasheet and select Finalize Risk. This denotes that you are complete with the RBI Analysis and are ready to create RBI Recommendations based on the results of it.

    2) Click Save. You will notice that all of the fields in the RBI Analysis and the associated evaluations are now disabled and cannot be changed.

  • Copyright Meridium, Inc. 2007. All rights reserved. Confidential and proprietary information of Meridium, Inc. Published Sep. 2011.

    Page 59

    Steps C1, C2

    3) Also notice that since the RBI Analysis has been marked Risk Completed you now have the option to Generate RBI Recommendations from the Recommendation Tasks menu.

    4) When the RBI Recommendations have been generated a message is displayed stating as such. Click OK to acknowledge the message.

    5) Note that + signs are now visible next to several of the Degradation Mechanisms in the bottom portion of the screen. This is because new RBI Recommendations are now related to these Degradation Mechanisms.

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    Steps C1, C2

    6) Click the Review Recommendations on the Recommendation Tasks menu to look at all of the RBI Recommendations currently existing created for the asset.

    7) The RBI Recommendations are shown in the Recommendation Manager.

    8) From the Recommendation Manager the RBI tasks can be Consolidated, Superseded, or marked as Not Required. Once these steps are performed, the user can promote these recommendations to create Inspection Tasks to be managed in Meridium.

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    Steps C1, C2

    At this stage, the RBI analyst shall consolidate RBI Recommendations by identifying opportunities for Supersede or Consolidate two or more of those. An important point is that the objective is to have the number of proposed recommendations as low as possible, however covering the scope of work as well as the more stringent inspection intervals.

    Using the example created in this training material, the RBI analyst can identify the opportunity to supersede the recommendation for Internal Corrosion by the one created for Erosion. Also the same logic applies to supersede the one for External Corrosion by the one for Ext Chloride SCC.

    Consolidating RBI Recommendations

    1) Any recommendation to be superseded by another has to have the completion comments filled as a mandatory step. Click on the link for the recommendation created to address the Internal Corrosion degradation mechanism.

    2) Type the following on the Completion Comments field and click OK.

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    Steps C1, C2

    3) Select both recommendations for Internal Corrosion and Erosion.

    4) Select the recommendation which will supersede the other (in this case the recommendation for Erosion shall be selected), and click OK.

    5) Observe that the recommendation for Internal Corrosion is now displayed as superseded by the recommendation for Erosion.

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    Steps C1, C2

    6) The steps 1 to 5 will now be repeated for the other pair of recommendations. Click on the link for the recommendation created to address the External Corrosion degradation mechanism.

    7) Type the following on the Completion Comments field and click OK.

    8) Select both recommendations for External Corrosion and Ext Chloride SCC.

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    Steps C1, C2

    9) Select the recommendation which will supersede the other (in this case the recommendation for Ext Chloride SCC shall be selected), and click OK.

    10) Observe that the recommendation for External Corrosion is now displayed as superseded by the recommendation for Ext Corrosion SCC.

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    Steps C1, C2

    Creating Tasks

    1) Select the recommendation which will be generating the inspection task and click Create WMI at the asset tasks menu..

    2) Click Next.

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    Steps C1, C2

    3) Click Next as Inspection Task will be the only available option.

    4) Type anything at the red field (whatever is typed will be replaced when task is created) and click Finish.

    5) The Inspection Task will be created according to the scope of work and inspection interval stated on the RBI Recommendation.

    You have now completed Steps C1 and C2 of the Meridium RBI Workflow. In these lessons, you generated RBI Recommendations, consolidated them, and finalized Inspection Strategies for the Equipment.

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    Re-evaluating Risk and

    Inspection Strategies

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    Re-Evaluating RBI Analysis

    Eventually any RBI analysis will have to be reevaluated. There are several possible reasons to trigger this re-evaluation, which are called Trigger Points.

    Examples of trigger points are:

    Changes in the Process/Operations; Major repairs / replacement; Inspections (the RBI analyst shall evaluate if the new information may produce

    changes in the inspection strategy); Time based reevaluation (typical for long inspection intervals, 10yr or more),

    etc.

    Reevaluating Risk and Inspection Strategies

    1) Using the Go To Menu, access the RBI Asset View for D-101 as showed below:

    Note: This view shows the only RBI analysis made for D-101 until now. This is currently the RBI analysis with the Risk Completed status, therefore is the one which is driving the current strategy.

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    Re-Evaluating RBI Analysis

    2) The RBI Analyst have the option to create a new RBI Analysis as explained before, however, a copy of an existing analysis is also possible. Select the existing analysis and click Copy Analysis at analysis tasks menu.

    3) Search for D-101 in Criticality RBI Component Cylindrical Shell. Click Select

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    Re-Evaluating RBI Analysis

    4) Keep all PDMs selected and click OK.

    5) A new RBI Analysis is displayed with the Created status.

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    Re-Evaluating RBI Analysis

    6) At this stage you are expected to have a basic understanding of the software functionalities. The updated information is the following:

    a. Last Coating Date 15-Jan-2011

    b. Coating Quality Best

    c. Expected Corrosion Rate (External Corrosion) 0.1 mm/yr

    d. Date Last Inspected (External Corrosion) 15-Jan-2011

    e. Number of Inspection (External Corrosion) 3

    f. Inspection Confidence (External Corrosion) High

    g. Expected Corrosion Rate (Internal Corrosion) 0.23 mm/yr

    h. Date Last Inspected (Internal Corrosion) 15-Jan-2011

    i. Number of Inspection (Internal Corrosion) 3

    j. Inspection Confidence (Internal Corrosion) Very High

    k. Number of Inspection (Erosion) 3

    l. Last Inspection Date (Erosion) 15-Jan-2011

    m. Probability Category (Erosion) 4

    n. Number of Inspection (Ext Chloride SCC) 3

    o. Last Inspection Date (Ext Chloride SCC) 15-Jan-2011

    p. Probability Category (Ext Chloride SCC) 4

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    Re-Evaluating RBI Analysis

    7) After make sure that all those new values were correctly populated, click Calculate Analysis at the Analysis Tasks menu.

    8) Evaluate and discuss the results.

    9) Treat the recommendations accordingly and manage the tasks to update the inspection strategy for D-101.

    Note: This is a typical example for RBI Analysis in a pressure vessel. Other examples with other types of equipment will be presented as additional content.

  • raal

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    Overall RBI Workflow

    Overall RBI Workflow