INGAA Direct Assessment INGAA Direct Assessment Industry WorkgroupsIndustry Workgroups

Drew HevleDrew HevleEl Paso CorporationEl Paso Corporation

OverviewOverview

External Corrosion Direct Assessment External Corrosion Direct Assessment workgroupworkgroup– Sponsored by INGAASponsored by INGAA

– Many other participating organizationsMany other participating organizations

– Validation efforts – PRCI, NGA, PG&E, Validation efforts – PRCI, NGA, PG&E, AGA/GTIAGA/GTI

OverviewOverview

Other workgroupsOther workgroups– Internal corrosion direct assessmentInternal corrosion direct assessment

– SCC direct assessmentSCC direct assessment

Goals of workgroupsGoals of workgroups

Provide forum for participation for Provide forum for participation for operators, contractors, and regulatorsoperators, contractors, and regulators

Distribute informationDistribute information

Coordinate research and validation effortsCoordinate research and validation efforts

Identify gapsIdentify gaps

Goals of workgroupsGoals of workgroups

Discuss and propose new researchDiscuss and propose new research

Provide input to standards and regulatory Provide input to standards and regulatory developmentdevelopment

Develop and distribute protocolsDevelop and distribute protocols

Identify new technologies and applicationsIdentify new technologies and applications

ECDA WorkgroupECDA Workgroup

ECDA workgroup headed by Drew Hevle ECDA workgroup headed by Drew Hevle of El Pasoof El Paso

Latest meeting September 26 in HoustonLatest meeting September 26 in Houston

Conference calls being held bi-weeklyConference calls being held bi-weekly

Next meeting December 18 in HoustonNext meeting December 18 in Houston

ECDA Workgroup MakeupECDA Workgroup Makeup

ECDA distribution list ECDA distribution list includesincludes approximately 125 approximately 125 membersmembers– 60 operators (includes gathering, transmission and distribution)60 operators (includes gathering, transmission and distribution)

– 50 contractors/industry organizations50 contractors/industry organizations

– 15 regulators (both state and federal)15 regulators (both state and federal)

– Some participants from outside the natural gas industry, some Some participants from outside the natural gas industry, some international, not all interest strictly in Title 49 changesinternational, not all interest strictly in Title 49 changes

Similar distribution for ICDA workgroupSimilar distribution for ICDA workgroup

ECDA Workgroup (fun and exciting)ECDA Workgroup (fun and exciting)

ECDA WorkgroupECDA Workgroup

StatusStatus– PRCI validation project updates from nine of the PRCI validation project updates from nine of the

participating companiesparticipating companies

– Development of an ECDA Guidebook to aid in Development of an ECDA Guidebook to aid in converting the NACE standard converting the NACE standard RP 0502 into procedures and specificationsRP 0502 into procedures and specifications

ECDA WorkgroupECDA Workgroup

StatusStatus– Update on NGA’s validation effortUpdate on NGA’s validation effort

– Soils model updateSoils model update

– Opportunities for site visitsOpportunities for site visits

PRCI High-Impact ProgramPRCI High-Impact Program

Co-funded by DOT, managed by Fred JoynerCo-funded by DOT, managed by Fred Joyner

ProgramsPrograms– External Corrosion Direct Assessment External Corrosion Direct Assessment

Review of 2000/2001 dataReview of 2000/2001 data

ECDA validation projectECDA validation project

Reliability-based risk assessmentReliability-based risk assessment

Soils modelSoils model

ECDA ManualECDA Manual

– OthersOthers

PRCI High-Impact ProgramPRCI High-Impact Program

Companies were requested to volunteer Companies were requested to volunteer pipeline segments that had been in-line pipeline segments that had been in-line inspected recentlyinspected recently– Most pipelines were large diameter coated Most pipelines were large diameter coated

transmission gas pipelinestransmission gas pipelines

Protocol developed to apply NACE 0502 in a Protocol developed to apply NACE 0502 in a consistent mannerconsistent manner

PRCI High-Impact ProgramPRCI High-Impact Program

Consultants provided to conduct the indirect Consultants provided to conduct the indirect inspections and direct examinations in a inspections and direct examinations in a consistent mannerconsistent mannerAdditional tools evaluated, such as EUPEC Additional tools evaluated, such as EUPEC RMS Delta survey, soils model, Miller DA RMS Delta survey, soils model, Miller DA meter, additional direct examinations mademeter, additional direct examinations made

PRCI High-Impact ProgramPRCI High-Impact Program

Participating companiesParticipating companies– CenterPoint EnergyCenterPoint Energy– Duke Energy/Union & Texas EasternDuke Energy/Union & Texas Eastern– El Paso/Tennessee GasEl Paso/Tennessee Gas– Enbridge/ConsumersEnbridge/Consumers– Gulf South (2 segments)Gulf South (2 segments)– Panhandle (2 segments)Panhandle (2 segments)– SoCal (3 segments)SoCal (3 segments)– WilliamsWilliams

PRCI High-Impact ProgramPRCI High-Impact Program

Results Results – Goal to complete direct examinations by Goal to complete direct examinations by

ThanksgivingThanksgiving

– Periodic updates at ECDA workgroup Periodic updates at ECDA workgroup meetings and conference callsmeetings and conference calls

– PRCI will generate a final report available PRCI will generate a final report available in 2004in 2004

ECDA WorkgroupECDA Workgroup

Gaps identifiedGaps identified– Identify the limits of the NACE standardIdentify the limits of the NACE standard

Shielding coatingShielding coating

Rocky backfillRocky backfill

Adjacent metallic structuresAdjacent metallic structures

ECDA WorkgroupECDA Workgroup

Gaps identifiedGaps identified– Confirmatory direct assessmentConfirmatory direct assessment

PRCI project conducted with ILI and PRCI project conducted with ILI and ECDA resultsECDA results

Would be relatively simple to take this Would be relatively simple to take this existing data and evaluate for existing data and evaluate for effectiveness with CDAeffectiveness with CDA

ECDA WorkgroupECDA Workgroup

Gaps identifiedGaps identified– New methods for calculating New methods for calculating

reassessment intervalsreassessment intervals

– Better and more efficient indirect Better and more efficient indirect assessment tools for bare and poorly assessment tools for bare and poorly coated pipelinescoated pipelines

ECDA WorkgroupECDA Workgroup

Gaps identifiedGaps identified– Need for consistency in applicationNeed for consistency in application

– Need for standards for indirect inspectionsNeed for standards for indirect inspections

– Issues with telluric currents and new Issues with telluric currents and new inspection techniquesinspection techniques

ICDA WorkgroupICDA Workgroup

ICDA headed by Garry Matocha of Duke ICDA headed by Garry Matocha of Duke EnergyEnergy

Latest meeting October 20, 2003Latest meeting October 20, 2003

Next meeting scheduled for January 2004Next meeting scheduled for January 2004

ICDA WorkgroupICDA Workgroup

StatusStatus– NACE RP for ICDA (Dry Gas Systems) NACE RP for ICDA (Dry Gas Systems)

expected to go out for ballot this weekexpected to go out for ballot this week

– Short uninspectable segments are Short uninspectable segments are portions of the systems which will be portions of the systems which will be difficult to evaluate. Additional work in difficult to evaluate. Additional work in this area is needed. this area is needed.

ICDA WorkgroupICDA Workgroup

StatusStatus– The CDA work group requested input The CDA work group requested input

regarding CDA procedures for internal regarding CDA procedures for internal corrosion. This is currently under corrosion. This is currently under development by a smaller group which will development by a smaller group which will circulate the proposed procedures to the circulate the proposed procedures to the larger work group for comment prior to the larger work group for comment prior to the next meeting.next meeting.

SCCDA WorkgroupSCCDA Workgroup

SCCDA standard is still in the development stageSCCDA standard is still in the development stage

– NACE TG 273 is developing the standardNACE TG 273 is developing the standard

– Chair John Beavers, vice-chair Jim MarrChair John Beavers, vice-chair Jim Marr

– Preliminary draft discussed at NACE Corrosion Preliminary draft discussed at NACE Corrosion Technology Week in September in PittsburghTechnology Week in September in Pittsburgh

No formal workgroup has been created yetNo formal workgroup has been created yet

ParticipationParticipation

If you would like to participate in any of If you would like to participate in any of these groups, please contactthese groups, please contact

– ECDA – Drew HevleECDA – Drew Hevledrew.hevle@elpaso.comdrew.hevle@elpaso.com

– ICDA – Garry MatochaICDA – Garry Matochagmmatocha@duke-energy.comgmmatocha@duke-energy.com

INGAA Direct Assessment INGAA Direct Assessment Industry WorkgroupsIndustry Workgroups

Drew HevleDrew HevleEl Paso CorporationEl Paso Corporation