2012 fepa presentation: erik kirkpatrick
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MAOP Verification Best Practices
Florida Energy Pipeline Association – July 18, 2012
www.STRUCTINT.com877-4SI-POWER
Eric KirkpatrickDirector – Pipeline ServicesStructural Integrity Associates,
Inc.
Best Practices of an MAOP Verification Program- SLIDE 2
Webinar Objectives
• Brief Overview of PHMSA Guidance
• Best Practices learned from MAOP projects
• Q&A (Please hold questions until the end)
Best Practices of an MAOP Verification Program- SLIDE 3
About
• Founded 1983• Headquartered in San Jose with offices in Denver, Salt Lake
City, Charlotte• 230 employees
• Specialists in Pipeline Integrity Management
• MAOP Verification
• Software and Data Acquisition Systems
• Non-Destructive Examination (NDE) and field services
Best Practices of an MAOP Verification Program- SLIDE 4
About
• Founded 1998• Offices in Chico and Walnut Creek Ca.• 140 employees and growing• Certified woman owned business by the California PUC • Senior staff of previous utility leaders in Gas Transmission
and Distribution• Recognized with 2011 Small Business of the Year Award by
PG&E• Proven performance in MAOP Verification, Hydrostatic Test
Engineering, Pipeline Engineering, Quality Assurance and Compliance Auditing.
Best Practices of an MAOP Verification Program- SLIDE 5
MAOP VerificationPHMSA Guidance
April 22, 1998 - PHMSA 1998 Guidance Document – Determination of Maximum Allowable Operating Pressure in Natural Gas Pipelines
September 9, 2010 – San Bruno Pipeline Rupture
January 10, 2011 - PHMSA Advisory Bulletin (ADB-11-01) - Establishing Maximum Allowable Operating Pressure Using Record Evidence (source of “Traceable, Verifiable and Complete” and “ensure company records accurately reflect the pipelines physical and operational characteristics”)
Best Practices of an MAOP Verification Program- SLIDE 6
MAOP VerificationPHMSA Guidance
May 7, 2012 - PHMSA Advisory Bulletin (ADB-12-06) – Verification of Records Establishing MAOP and MOPTraceable = clearly linked to original informationVerifiable = confirmed by other complementary, but separate, documentation.Complete = finalized as evidenced by signature, date or other appropriate markingOperators to submit data via the 2013 Annual ReportPHMSA intends to act on NTSB recommendation to eliminate the Grandfather Clause
Best Practices of an MAOP Verification Program- SLIDE 7
Start with a Specific Plan
Best Practices of an MAOP Verification Program- SLIDE 8
Best Practices of an MAOP Verification Program- SLIDE 9
MAOP Project - SCOPE Options
Scope of Effort Benefit Concerns
Only Class 3 and Class 4 locations and Class 1 and Class 2 high consequence areas.
Limited Scope may result in faster completion of evaluation
Ongoing evaluation required for class location changes and new HCAs.
All Transmission No ongoing evaluation of class locations and new HCAs required. More verified knowledge of system.
Completion may take longer.
New Construction Evaluate whether existing processes are adequate. Eliminate future MAOP verification re-work!!!!
Non-MAOP data Efficiency, only 1 review of records
May impact schedule
Best Practices of an MAOP Verification Program- SLIDE 10
Best Practices of an MAOP Verification Program- SLIDE 11
MAOP Criteria• Design Criteria – Pipe• Design Criteria – Standard Fittings (e.g. elbows, tees)• Design Criteria – valves, flanges, fittings• Pressure Test – constructed prior to November 1970• Pressure Test – constructed after November 1970• Historic Operating Pressure – 5 yrs. preceding July 1,
1970• Maximum Safe Pressure• Subpart K Uprates• §192.611 provisions for change in class location and
confirmation of MAOP• State Specific Requirements??????
Best Practices of an MAOP Verification Program- SLIDE 12
PHMSA 1998 Guidance Document – Determination of Maximum Allowable
Operating Pressure in Natural Gas Pipelines
Part 192.619(a)(1) Design Pressure: Lowest design pressurePart 192.621(a)(1) for any of the following system elements
Pipe (including service lines)Valves
Flanges FittingsMechanical CouplingsLeak ClampsInstrumentsOdorizersOverpressure protection devicesUpstream Regulator(s)-OutletPressure RatingDownstream Regulators-InletOther (list)
Best Practices of an MAOP Verification Program- SLIDE 13
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Illustration of Key Data required to support MAOP
• Current Class Location• Current Pipeline MAOP• Date of Operation• Converted under 192.14?• Pipe Grade• Pipe Nominal Outside
Diameter• Pipe Wall Thickness• Pipe Longitudinal Joint
Type • Component Type (e.g.
Valve, Flange, Elbow) • Component Grade• Component wall thickness
• Component nominal outside diameter
• Component ASA/ASME/ANSI Rating
• Component Max Working Pressure
• Road crossing or encroachment with no casing?
• Railroad crossing or encroachment with no casing?
• Supported by bridge?• Compressor Station,
Regulating Station, or Metering Station?
Best Practices of an MAOP Verification Program- SLIDE 15
• Minimum Actual Test Pressure
• Pressure Test Date• Operator Name at
Construction • Name of Operator's
employee responsible for making pressure test
• Name of any Test Company used
• Test Medium Used • Test Duration
• Recording Chart or Record of Pressure Readings?
• Highest Elevation• Lowest Elevation • Recorder Elevation • Leaks and Failures &
Disposition noted• Date that Historic
Operating Pressure was recorded
• Historic Operating Pressure
• Uprate Test Date• Uprate Test Pressure
Illustration of Key Data required to support MAOP
Best Practices of an MAOP Verification Program- SLIDE 16
Best Practices of an MAOP Verification Program- SLIDE 17
What Records are Applicable?Where are they?
Best Practices of an MAOP Verification Program- SLIDE 18
Inventory of Target Data by Record Type
Illustrative example only
Best Practices of an MAOP Verification Program- SLIDE 19
Identification of Valid and “Verified” Record Sources?
1Best Source – Consider Verified if confirmed by other complementary record.
2Acceptable Source – Consider Verified if confirmed by other complementary record. May be used as a complementary record.
3May only be used as a complementary record.
4 May not be used
Illustrative example only
Best Practices of an MAOP Verification Program- SLIDE 20
Completeness?
Signature?
Date?
Best Practices of an MAOP Verification Program- SLIDE 21
Completeness Grading
Document Quality – Illustrative Example: Test Pressure Doc(1) First Tier Documentation – Signed and dated report with dead weight log and charts
(2) Second Tier Documentation – Signed and dated report with charts
(3) Third Tier Documentation – Signed and Dated Charts Only
(4) Fourth Tier Documentation – Unsigned report with dead weight log and charts
(5) Fifth Tier Documentation – Unsigned Report with Charts
(6) Sixth Tier Documentation – Unsigned Charts
(7) Seventh Tier Documentation – Report with no chart or pressure log.
Best Practices of an MAOP Verification Program- SLIDE 22
Best Practices of an MAOP Verification Program- SLIDE 23
Scanning Records
• ADB-12-06 requires traceable records linked to original info
• The benefit of scanning applicable records is to avoid future loss and establish easier traceability.
• Scanned Images should reside on a server that is backed up for data loss prevention and security.
• Establish protocols for moving, scanning and returning records; this is yet another opportunity to loose key records!
• Avoid confusion, only scan the targeted records you need.
• Consider pre-sorting records
Best Practices of an MAOP Verification Program- SLIDE 24
Scanning Records
• Establish metadata system to capture key aspects of every image (e.g. Pipeline #, Project Number, Document Type, Date, Unique ID #, etc.)
• Establish rules for color vs. black and white, two-sided originals, scan resolution, format type, continuity of stapled documents, etc.
• Index each image in a logical manner; consider linking data to the associated image in some manner.
• Consider following same protocol for new construction records.
Best Practices of an MAOP Verification Program- SLIDE 25
Best Practices of an MAOP Verification Program- SLIDE 26
Data Capture
Considerations include:•Loss Prevention•Integration into other uses•Ongoing access or one-time project?
Best Practices of an MAOP Verification Program- SLIDE 27
Example 1
Data from records identified that support pipeline features on transmission plat or other references and entered into MS Excel and MAOP calculated.
Best Practices of an MAOP Verification Program- SLIDE 28
Example 2
Data Management and MAOP Calculation in MS Access.
Final Verified Data resides in GIS
Data from records entered into MS Access.
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Best Practices of an MAOP Verification Program- SLIDE 30
Application of Conservative Defaults?
Illustrative example
Best Practices of an MAOP Verification Program- SLIDE 31
Best Practices of an MAOP Verification Program- SLIDE 32
RECORD EVALUATION
Data Conflicts (same data element from different records)
Evaluate Against Records Acceptance Criteria
Best Practices of an MAOP Verification Program- SLIDE 33
Quality Control Considerations
• 100% QC until confidence in process is established
• Records not Meeting Protocols Go through Different Process– Operating Experience, Subject
Knowledge– Engineers
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Best Practices of an MAOP Verification Program- SLIDE 35
• Handwritten, Spreadsheet, Database, linked to GIS??
• Detail Process Flow
• Validation & Verification of spreadsheets or software – Test Cases
MAOP CALCULATION & VERIFICATION
Best Practices of an MAOP Verification Program- SLIDE 36
Start with a Specific Plan
Best Practices of an MAOP Verification Program- SLIDE 37
How to Contact Us
SI: ekirkpatrick@structint.comGTS: www.gtsinc.us/contact-us/contact-us-1/
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