2. THE AUGUSTUS GROUP, LLC
(AUGUSTUS) – WHO ARE WE?
Founded in Houston Texas in 2004
Privately Owned Small Business Registered in SAM
Program
Engineering and Consulting Services to Refining and
Chemicals and Aerospace Industry for >10 Years
Focus is on Materials Technology, Asset Integrity Problem
Solving, and Risk Management On and Off Shore
Collective Experience in……
Bolting Technology and Leak Management
Materials Technology, Failure Analysis, Non-
Destructive Examination, Suitability for Service
Fitness for Service and Risk Based Inspection
Aerospace, Petroleum and Chemical, Fossil/Nuclear
Power Consulting Upstream and Downstream
3. Wrote Chemical Manufacturer’s Association’s
Mechanical Integrity Supplement used to Train
Over 300 Member Companies
>20 RBI Implementations Since 1995,
First Known Refinery Program at BHP Hawaii,
NASA Johnson and Stennis AFB
Developed APTECH’s (Now Intertek) RBI
Program and Software
Experience with Most Major Software Packages
& Programs – Tichuk, Meridium, PCMS, The
Welding Institute, Capstone, Reliasoft
Full Scope RBI Implementations
Using Capstone and PCMS Software
Management Systems, Procedures, Audits, Training
EXPERIENCE - MECHANICAL
INTEGRITY AND RBI
4. Areas of Specialty Operating Company Former
Employee
Jim Towers Pipelines, Litigation Exxon, Conoco
Peter Hunt Refinery Management, MI/QAQC Shell
Bob Blackstone Stress Analysis, Fracture Mechanics, Welding,
Fatigue, Design
ABS
Gene Rak Corrosion, MI Exxon
Scott Miller NDE Saudi Aramco
Edwin Merrick RBI, Materials Technology, Welding, Bolting, Leak
Management
TVA, Aptech
Scott Merrick Education, Training City of Nashville
Dick Jones Corrosion, PSM, MI, Chemical Plant Management US Steel/ Aristech
Joel Olener PSM
Les Loushin MI, Materials Technology Arco Chemical, Sunoco
Gene Silverman AST Integrity, Eagle System INTANK
Alan Judkins Business Development US Steel/ Aristech
David Sanders Inspection Program Management & Site
Implementation
Petrochem/TEAM
Marvin Mehler Corrosion Engineering NCRA
James Waldrop TA Planning Citgo
Paul Rose NDE, Data Analysis (EVA, etc.)
Mike Fox Maintenance, MI Implementation, Safety Program
Management
Honeywell
Jesse Meisterling Bolting Technology, Leak Management Raymond Engineering
Dave Holthaus NDE Jacobs Engineering
Frank Simpton Inspection Program Management & Implementation,
Corrosion, Damage Management, On-stream
Inspections
Acuren, Hovensa, Saudi Aramco
ENGINEERING CONSULTANTS
5. AUGUSTUS APPLIES TECHNOLOGY
Manufacturing Excellence
Life Cycle
Management
Process
Safety Management
and
Mechanical Integrity
Incident Investigation
Failure Analysis
Acceptability for
Continued Operation
Insurance
Arbitration
Support
and
Litigation
6. 2/19 - Improving your Turnaround
Performance by Managing for Leak Free
Startup – Webinar
2/26 11am CST, Use Risk Based Inspection
Tools for Optimizing Performance – Webinar
3/5, 11am CST, Managing Your On-Stream
Inspection Program and External Versus
Internal Inspections - Webinar
3/12, 11am CST, Managing Corrosion Under
Insulation - Webinar
3/17 & 3/18 – MI for PSM Compliance
SEMINAR
MORE TO BE SCHEDULED, CHECK
WWW.THEAUGUSTUSGROUP.NET
WEBINAR/SEMINAR SERIES – HELPING OUR
CUSTOMERS ALIGN WITH BUSINESS OBJECTIVES
7. Managing Corrosion Under
Insulation
Moderator = Ed Merrick – TVA, APTECH
Panelists = Peter Hunt – Engen, Shell, Sunoco, Dupont
Frank Simpton – Amoco, Saudi Aramco, Hovensa,
Acuren, Jacobs
8. CORROSION UNDER INSULATION (CUI)
Well known phenomena
Cost wise is the worst type of corrosion
Gulf coast represents over 70% of
corrosion issues, elsewhere averages
between 40-60% of piping costs
Corrosion can be galvanic, chloride,
acidic or alkaline
Potential for a major Process Safety
Incident
10. CUI – HISTORY
If you insulate metal, you have a potential for CUI
ASTM STP 880 “Corrosion of Metals Under Thermal Insulation” in
1985
Recommended use of multiple NDE techniques
NACE RP 0198-98 “The Control of Corrosion Under
Thermal Insulation and Fireproofing Materials - A
Systems Approach”
Recommended use of protective coatings
Experience in 2003
Trying a number of techniques
Indicated 100% stripping of insulation only certain method
Better techniques and processes now used
11. CUI - CAUSES
Temperature Range – +25F to 300F, but can
occur at higher temperatures, worse in cyclic
conditions
Coating – breakdown of the coating barrier
Average Coating life is 5-12 years
Insulation – wicks and retains moisture
Worst insulations are Mineral wool and CalSil
Lagging – penetrations and poor maintenance
Choice between AL or SS
12. CUI – TYPES
Galvanic - wet insulation with an electrolyte
present which allows a current to flow between
metals of different corrosion potential
Chloride - a combination of insulation
containing leachable chlorides with the 300
series austenitic stainless steel surfaces
Acidic/Alkaline - either an alkali or an acid are
present in certain fibrous or granular
insulations, which is inadvertently mixed with
moisture in the environment
13. No method has proven 100% effective
A combination of methodologies should be
used
Risk based where and how likely CUI may
occur (more on this later)
Age of coating
Type of Coating
Type of insulation used
Operator practice
Maintenance practices
CUI - DETECTION
14. Appropriate Methods
Can use the strip all method to allow a visual inspection
Various NDE Techniques
RT - (Conventional, Real Time, or Low Intensity) but cannot be
used for all situations
Pulsed eddy current – screening method
Guided Wave UT – Excellent for inspection of supports,
dependent on skill of inspector and is a screening technique
UT Thickness – accurate but not detect pitting type corrosion
Thermography – only if moisture is present
CUI – DETECTION, CONTINUED
15. CUI - PREVENTION
Prevent moisture or electrolytes from coming in contact
with bare metal
Repair or replace protective coating before it breaks
down
Use Aluminum foil wrapping for SS
Use a superior protective coating such as TSA
TSA coatings have a life of 30 to 40 years.
In the petrochemical industry, TSA is:
Recognized as Best-In-Class for CUI prevention by EFC, and
Included in industry standards such as NACE SP 0198-2010, CINI
7.4.04, EFC Publication #55, and NORSK M501.
16. CUI - PREVENTION,CONTINUED
Use a non wicking insulation such as Pearlite
Install lagging properly and ensure it is sealed
correctly
Train operators and maintenance to treat
insulated pipe with care
Ensure on a risk based process that there is a
well though out inspection plan
Where possible, do not insulate, use a wire
"standoff" cage
NB: Inspection is not a prevention method
17. CUI – INFORMATION SOURCES
API – 510/570
API RP 583, Corrosion Under
Insulation and Fireproofing
NACE SP0198-2010, Control of
Corrosion Under Thermal Insulation
and Fireproofing Materials – A
Systems Approach
18. WHERE TO INSPECT
Highest priority to equipment and
piping where:
Water can be trapped
Equipment operates near cooling
towers, sea breeze or steam
condensate
Surface condensation is a factor
Previous history of
weatherproofing deterioration
19. VESSEL INSPECTIONS
Typical areas most vulnerable
include:
Top platform supports
Ladder supports
Exposed stiffing or support
rings
Small gusset supports
Nozzles and manways
21. TANK INSPECTIONS
Typical areas most vulnerable
include:
Roof nozzles
Stairway supports
Insulation support rings
Gussetted connections
Wall to base junction
25. EVALUATION OF CUI CORROSION
Baseline CUI Inspections to Find
and Mitigate Problems in Piping and
Fixed Equipment
RBI or Classification of Piping to
Prioritize Work
VT Inspection of Insulated Piping with
IR Inspection of Insulated Piping to
Complement VT
26. 26
CORROSION CIRCUITS IDENTIFICATION
Corrosion Under Insulation: (CUI) are to be
set up as separate piping circuits within the
piping system where they are installed.
28. QUALITY REVIEW/AUDIT OF INSPECTION
DOCUMENTATION
? Are You Actively Managing CUI
? Do You Have a Risk Based Approach
Typical Augustus Review/Audit
Assess Quality Of VT and UT Inspection
Documentation and Data
Procedures
Qualifications Of Inspectors
Results
Interviews with Management Engineers and
Inspectors
Identifies Opportunities For
External Vs Internal Inspections
Input To RBI Program
29. WHY DO WE DO IT?
Planning For
On-stream
Inspections
Optimization Of
Outage or
Turnaround Scope
Focusing Inspections,
e.g. CUI
Hazard
Screen
Risk
Benchmark
Inspection
Plans
Non-
Intrusive
Inspections
Opportunity
Inspections
Turnaround
Plan
Evergreen
Risk
Analysis
Turnaround
Inspections
30. THE BEAUTY OF RISK BASED DECISION
MAKING
100% of Susceptible Locations in the High Risk
Items
Use Stratified Statistical Sampling of
Representative Areas in:
50% of Susceptible Locations in Medium High and
Medium Risk Items
10% to 50% of Susceptible Locations in Low Risk
Items
Sampling & Repairs etc. to be Expanded as
Problems are Found
31. QUALITATIVE RB CUI MANAGEMENT
Relies On Expert Judgment and Weighting
of Qualitative Factors
Group Meeting To Review Procedures And
Agree On Scope, Approach, And Details Of
Review
Maintenance
Inspection
Engineering
Operations
Contractors?
We Recommend Integration with PHA
32. WHAT DOES THE QRA LOOK LIKE
Qualitative Risk Analysis &
Prioritization
Gut Level Sensibility Calibration for
RBI Analysis of Items
Inspection Data
Add Financial Implications Aligned with
Business Case
33. USE METALLURGICAL AND CORROSION
ANALYSIS
Using the PHA Software or Access Tools as
Appropriate
Align PHA Nodes with Process Segmentation to
Establish
Qualitative Probability of Failure
Validate Metallurgical and Corrosion Analysis
Identify Any New Damage Mechanisms or Concerns
Qualitative Consequence of Failure
Compare COF from QRA and RBI (if Available)
Document Business Interruption COF
39. TYPICAL 5X5 MATRIX FOR USE IN
INSPECTION PLANNING
Consequence Ranking
ABCDE
HIGH
MED HIGH
MEDIUM
LOW
1
2
3
4
5
ProbabilityRanking
Consequence
A-Catastrophic
B-Very Serious
C-Serious
D-Significant
E-Minor
Probability
1-Very High
2-High
3-Moderate
4-Low
5-Very Low
43. SUMMARY
Wet insulation is primary cause
of CUI
Good design is a necessity
Proper repairs of damaged
weatherproofing
Good inspection program
concentrated or areas of
vulnerability
44. Sometimes you have to
deliver an Unpopular
Answer
But it is All about
Making the Right
Decisions and Taking the
Right Action
OPERATIONS
SAFETY
INSPECTION
MAINTENANCE
SUPERVISOR
ENGINEERING
PLANT
MANAGER’S
OFFICE
ENGINEERING MANAGER’s – Daily
Challenges