Alaska Department of Environmental Alaska Department of Environmental ConservationConservationSpill Prevention and Response DivisionSpill Prevention and Response DivisionIndustry Preparedness ProgramIndustry Preparedness Program

Flow Line RegulationsFlow Line Regulations18 AAC 75.04718 AAC 75.047

What is a flow line?What is a flow line?18 AAC 75.990(173) "flow line"(A) means piping and associated fittings, including all valves, elbows, joints, flanges, pumps, and flexible connectors,

(i) containing liquid oil;(ii) located at a production facility; and(iii) that is installed or used for the purpose of transporting oil between a well pad or marine structure used for oil production and the interconnection point with a transmission pipeline; and

(B) includes all piping between interconnections, including multi-phase lines and process piping, except

(i) facility oil piping; and(ii) transmission pipelines;

What isn’t a flow line?What isn’t a flow line?Crude Oil Transmission Crude Oil Transmission

PipelinePipeline Flow LineFlow Line Facility Oil PipingFacility Oil Piping

Typical size Typical size (diameter)(diameter) 6 – 48 inches 4 – 30 inches <8 inches

Pipe ContentsPipe Contents Crude Oil Multi-phase Oil Oil

ADEC RegulationADEC Regulation 18 AAC 75.055 18 AAC 75.047 18 AAC 75.080

Leak DetectionLeak Detection Yes (1% daily volume) No No

Design StandardDesign Standard No YesASME B31.4, B31.8

YesASME B31.3, B31.4, B31.8

Cathodic Protection Cathodic Protection StandardStandard No Yes Yes

NACE RP0169, API 570

Corrosion Control Corrosion Control StandardStandard No

YesASMEB31.4, NACE RP0169

YesProtective coating & CP

Inspection StandardInspection Standard No YesYes

API 570

Maintenance Maintenance StandardStandard No

YesASME B31.4, API 570

YesAPI 570

F ac ility B oundary

F ac ility B oundary

G ravel P ad

W ell P ad Boundary

M arineS truc ture

Refinery

M anifo ld B uild ing

18 AAC 75 A rtic le 1 R egulatory Boundary Exam ples

Containm ent

O ilStorage

Tank

Containment

W ellheads

Containment

M arine Header

O ilStorage

Tank

Facility B oundary

Pum p Sta tion

Conta inment

O ilS torage

T ank

Facility B oundary

CentralProcessing

Facility

Conta inment

O ilStorage

Tank

Containment

Loading Rack

M arine Header

Not regulated by ADEC under 18 AAC 75 Article 1

Regulated Facility Piping (18 AAC 75.080)

Regulated Flow line (18 AAC 75.047)

Regulated Crude Oil Transmission Pipeline (18 AAC 75.055)Regulated Aboveground Oil Storage Tank (18 AAC 75.065 / .066)

Regulated M arine Structure Used for Oil Production (18 AAC 75.045)

Regulated Secondary Containment (18 AAC 75.075)

Regulated Transfer Operation (18 AAC 75.025)

Regulated Vessel Operation (18 AAC 75.027 / .037)

Regulated Railroad Tank Car (18 AAC 75.085)

Crude O il T ransmission P ipe line

Submerged F low Line

M ulti-phase F low L ine

F low L ine

Containment

Loading Rack

Loading R ack

Tank Vesse l / Tank B arge

Tank Vesse l / Tank B arge

Refer to the appropria te regulations for spec ific boundaries

How are flow lines regulated?How are flow lines regulated?

Design & construction standardsDesign & construction standardsCorrosion monitoring & controlCorrosion monitoring & controlPreventative maintenancePreventative maintenanceLine markersLine markersRemoval from service requirementsRemoval from service requirementsLine supportsLine supportsCompliance documentation & Compliance documentation & recordkeepingrecordkeeping

Design & construction standardsDesign & construction standards

ASME B31 series industry standards for design ASME B31 series industry standards for design and construction of pipe:and construction of pipe:– ASME B31.4, ASME B31.4, Pipeline Transportation Systems for Pipeline Transportation Systems for

Liquid Hydrocarbons and Other LiquidsLiquid Hydrocarbons and Other Liquids– ASME B31.8, ASME B31.8, Gas Transmission and Distribution Gas Transmission and Distribution

Piping SystemsPiping Systems– Other “equivalent and nationally recognized standard”Other “equivalent and nationally recognized standard”

Design & construction standards become Design & construction standards become effective 31 December 2008 (2 year phase-in)effective 31 December 2008 (2 year phase-in)

Corrosion monitoring & controlCorrosion monitoring & controlIndustry standardsIndustry standards– ASME B31.4, Chapter VIIIASME B31.4, Chapter VIII– NACE RP0169-2002 for external corrosion control on NACE RP0169-2002 for external corrosion control on

submerged or buried linessubmerged or buried linesExternal corrosion controlExternal corrosion control– Protective coatings on aboveground lines or Protective coatings on aboveground lines or

corrosion-resistant materialcorrosion-resistant materialInternal corrosion control programInternal corrosion control program– Pigging, inhibitors, biocides, coatings, linings, etc.Pigging, inhibitors, biocides, coatings, linings, etc.Corrosion monitoring & control requirements Corrosion monitoring & control requirements become effective 31 December 2007 (1 year become effective 31 December 2007 (1 year phase-in)phase-in)

Preventative maintenancePreventative maintenance

Choice – either:Choice – either:– Use a bundled pipe with an interstitial leak Use a bundled pipe with an interstitial leak

detection system, ordetection system, or– Have a preventative maintenance system in Have a preventative maintenance system in

placeplacePreventative maintenance systemPreventative maintenance system– Consistent with ASME or API standardsConsistent with ASME or API standardsEffective 31 December 2007 (1 year Effective 31 December 2007 (1 year phase-in)phase-in)

Preventative maintenance program Preventative maintenance program standardsstandards

Submerged linesSubmerged lines– ASME B31.4, Chapters VII through IXASME B31.4, Chapters VII through IX

Buried linesBuried lines– ASME B31.4, Chapters VII & VIIIASME B31.4, Chapters VII & VIII

Aboveground linesAboveground lines– API 570 (except Section 8) andAPI 570 (except Section 8) and– ASME B31.4, Chapters VII & VIIIASME B31.4, Chapters VII & VIII

All preventative maintenance programs must All preventative maintenance programs must have procedures for management of change have procedures for management of change

Line markers, removal from Line markers, removal from service, and pipe supportsservice, and pipe supports

Line MarkersLine Markers– One mile intervals and at each road crossingOne mile intervals and at each road crossing– Effective 31 December 2007 (1 year phase-in)Effective 31 December 2007 (1 year phase-in)

Removal from serviceRemoval from service– Pig, drain, or blow pipe to remove oilPig, drain, or blow pipe to remove oil– Effective 31 December 2006 (now)Effective 31 December 2006 (now)

Pipe supportsPipe supports– ASME B31.4, Paragraph 421ASME B31.4, Paragraph 421– Effective 31 December 2006 (now)Effective 31 December 2006 (now)

Documentation / RecordkeepingDocumentation / Recordkeeping

Documentation of measures taken to Documentation of measures taken to comply with 18 AAC 75.047comply with 18 AAC 75.047– Corrosion controlCorrosion control– Preventative maintenancePreventative maintenance

Maintain records for minimum of five yearsMaintain records for minimum of five yearsRecords must be available to ADEC upon Records must be available to ADEC upon requestrequest

Other changes to 18 AAC 75, Article 1 Other changes to 18 AAC 75, Article 1 that affect North Slope operationsthat affect North Slope operations

Increased prevention training and Increased prevention training and documentation requirementsdocumentation requirementsRevised regulations for aboveground oil Revised regulations for aboveground oil storage tanks storage tanks

– field-constructed oil storage tanksfield-constructed oil storage tanks– shop-fabricated oil storage tanksshop-fabricated oil storage tanksRevised regulations for facility pipingRevised regulations for facility piping

Prevention trainingPrevention training

Moved into its own section and expandedMoved into its own section and expandedPersonnel that inspect, maintain, operate Personnel that inspect, maintain, operate oil storage and transfer equipment must oil storage and transfer equipment must be trained regarding company and state be trained regarding company and state spill prevention measuresspill prevention measuresJob descriptions and training level neededJob descriptions and training level neededKeep training records for 5 yearsKeep training records for 5 years

Aboveground storage tanksAboveground storage tanks

Two types definedTwo types defined– Field-constructed storage tankField-constructed storage tank

Constructed to API 650, API 12B, Constructed to API 650, API 12B, 12C, 12D, 12E, 12F, or 12P12C, 12D, 12E, 12F, or 12PInspected to API 653 or API 12R1Inspected to API 653 or API 12R1

– Shop-fabricated storage tankShop-fabricated storage tankConstructed to UL 142 or similar Constructed to UL 142 or similar standard standard Inspected to API 653 or STI SP001Inspected to API 653 or STI SP001

Facility oil pipingFacility oil pipingNew definition: Piping and associated fittings originating New definition: Piping and associated fittings originating from or terminating at a regulated oil storage tank or an from or terminating at a regulated oil storage tank or an exploration or production wellexploration or production wellThree classes of facility oil piping, based on installation Three classes of facility oil piping, based on installation date:date:– Before May 14, 1992 – no construction standard appliesBefore May 14, 1992 – no construction standard applies– May 14, 1992 thru 2008 – protective coating and cathodic May 14, 1992 thru 2008 – protective coating and cathodic

protection, all weldedprotection, all welded– 2009 or later – ASME B31.3, B31.4, or B31.8, or equivalent 2009 or later – ASME B31.3, B31.4, or B31.8, or equivalent

standard; cathodic protection per NACE standardstandard; cathodic protection per NACE standard

Inspection consistent with API 570 inspection standard Inspection consistent with API 570 inspection standard by 2008by 2008

Effective DatesEffective Dates

Regulations covering design and Regulations covering design and construction – go into effect in 2009construction – go into effect in 2009Regulations covering operations and Regulations covering operations and maintenance – go into effect in 2008maintenance – go into effect in 2008Remaining regulations - December 30, Remaining regulations - December 30, 20062006

Questions?Questions?

Craig WilsonCraig WilsonIndustry Preparedness ProgramIndustry Preparedness ProgramSpill Prevention and Response DivisionSpill Prevention and Response DivisionAlaska Department of Environmental ConservationAlaska Department of Environmental Conservation

www.dec.state.ak.us/spar/ippwww.dec.state.ak.us/spar/ipp