API SC 15 Meeting Notes June 14 th and 15 th

Transcription

1 API SC 15 Meeting Ntes June 14 th and 15 th Attendees- June 14: David Grandersn- NOV FGS, Craig Mre- NOV FGS, Rbert Burns- Amern Centrn, Tm McLaughlin- NOV Tubscpe, Bill Snider NOV Tubscpe, Dn Brks Oxy, Shail Ghaey API, Blaine Weller Flexpipe Systems, Jhn Bir Future Pipe, Bill Stringfellw- Glastek, Pu Gu- PPG Industries, Eric Jepsn-PPG Industries, Steve Baker- Owens Crning, Ne Hijman- NHA Cnsultres June 15: David Grandersn- NOV FGS, Craig Mre- NOV FGS, Shail Ghaey API, Blaine Weller Flexpipe Systems, Jhn Bir Future Pipe, Bill Stringfellw- Glastek, Pu Gu- PPG Industries, Eric Jepsn-PPG Industries, Steve Baker- Owens Crning, Ne Hijman- NHA Cnsultres, Tim Dyer- Perfrmance Pipes (Chevrn Philips), Al Wilkes- Perfrmance Pipes (Chevrn Philips) NOTES frm June 14 th Meeting agenda fllwed the presentatin by FGS June 14 discussin attached. Outcmes, actin items, and highlights frm discussin are cntained in the fllwing minutes: FGS and Petrplastic were the nly SC15 members t submit discussin pints prir t the June 14 th meeting, these pints were captured within the June 14 th discussin presentatin. N minutes frm previus meeting t review Review f dcuments in Grup A cnsideratin: 15HR, LR, TL4, CLT Call fr secretary f SC15 Grup A: Eric Jepsn-PPG Industries accepted Review f member interest in each dcument and leads fr each: API Grup A Dcument Leads: 15HR - David Grandersn, Paul Bryan, Jhn Bir 15LR- Craig Mre, Jhn Bir 15TL4 - Ne Hijman 15CLT Tm McLaughlin New dcument interest: Fiber Glass dwn hle tubing spec/rp - 15 TR was riginal dwn hle draft specificatin never apprved as it lacked cmmittee cnsensus. May be better t cme up with recmmended practice and prperties publicatin. Previus relevant API publicatins (5AR, 15TR, 15AR). Jhn Bir t lead, Ne Hijman, David Grandersn t participate. FGS suggestin - Stress strain relatinship as design criteria, avid regressin testing. 1

2 Request fr website fr API dcument update Shail Ghaey cnfirmed API will crdinate this effrt t place minutes, presentatins, etc n an API website fr public viewing and cmment. (API) Shail Ghaey will supply r allw access t pertinent API 15 dcuments specs and RP s t members f SC15. Specific discussin by SC 15 Dcument: 15TL4- Care and Handling f Fiberglass Pipe issue - wire brush t clean fiberglass threads- Suggest sft brush care t clean threads t prevent damage. *Accepted by all present 15TL4 mentins field testing but is ambiguus and nt standardized. An RP is nt recgnized in the industry as a standard. API 15HR and LR lack a standard statement fr field pressure testing. End Users having difficulty applying alternate standards such as ASME B31.3, r B31.4 t fiberglass ilfield pipe. API 15 specificatins require a standardized field test pressure t remve ambiguity and pssible misapplicatin f imprper standards. Suggestin fr language within presentatin. This t be cnsidered, detailed, and finalized at next SC 15 meeting. 15CLT- Cmpsite lined Steel 15CLT- Tm McLaughlin vlunteer t lead effrts 15CLT- Attempt t mve t a specificatin frm an RP. Mve mre t Shall frm Shuld, and standardize methds within. 15LR Lw Pressure fiberglass pipe Appendix B- Methd t test Tg by DSC- Suggestin allw ther means t test Tg - General acceptance Applies t HR as well. Use ASTM r ISO standard fr reference t Tg measurement methds Bill Stringfellw t recmmend (min and Max) Tg limits acrss pipe length, and recmmend a standard t fllw fr each methd f Tg measurement 5.3- Min prperties discussin Allw static prperties in additin t cyclic 5.7- suggest ASTM D hurs test duratins 252,000 cycles Factry pressure test- Recmmend Static and Cyclic ptins Field Pressure test see abve 15TL4 discussin General cmments t LR was riginally a cyclic pressure design specificatin, nw allws bth static and cyclic. Scpe changed while the bdy f the specificatin des nt appear t have been updated t accmmdate the static ptin. 2

3 15HR- High Pressure Line pipe Cmments frm Pretrplastic DSC fr all cmpnents - agreed Change in liner thickness require requalificatin, referenced in ASTM D agreed Appendix A5-A8 nt related t regressin testing, FGS thers agree, cnsider and clse at next meeting. Suggest mdificatin f regressin failure times nne less 1000, & mre after 10,000 Ptentially negates much f the currently available test data Discussin n mixing failure mdes and intent f D2992 testing High stresses can change failure mde in early testing distrting data Mixing Jint / related failures with pipe failures cnfuses data and intent f test Jint testing vs. pipe testing regressin analysis- Pipe testing shuld relate t the pipe wall thickness, adding jints at best qualifies a single jint size fr a single pressure class Cnsider strnger wrding in HR, such as N jints in primary pipe regressin data after (current date) Cnsider and discuss further next meeting D-2992 vs. 15 HR 2in vs. 8in pipe they are ptentially different design shuld require requalificatin HR clarificatin regressin times - 6,000 hurs and D2992 requires 10,000 hurs. Des 15HR intend maximum 6K r 10K ttal hurs? This sectin f 15HR needs t be revised t be mre explicit and clear. Decisin n intent next meeting Regressin testing prpsed riginally by Amern t test pipe at a reasnable stress, remve and determine strength lss. Beta testing ging n at FGS and Amern, share data later. 15 HR 2.1- General : Prpse t reference latest standards D t D Recmmend referencing new standards unless there is technical reasn t avid Need t review all reference standards- Ne Hijman actin t review existing references All t cnsider and be ready t decide external references by next meeting 3

4 5.4- Requalificatin due t changes in Appendix A Changes requiring re-qualificatin Need t identify relevant testing, regressin r nt regressin related Ne Hijman disagrees t separating jint frm pipe qualificatin mre next meeting Currently n requalificatin requirement fr plant lcatin. Discussin n whether lcatin is imprtant and if lcatin means within the plant r a different plant. Cnsensus is that this is nt an intended requirement f HR r D2992. Full 10,000 hur testing is nt required where base data is available. Cnsider whether requalificatin per sectin 12 ASTM D2992 is acceptable t add t HR fr lcatin. Tpic t be cnsidered fr fiberglass pipe and decided next meeting Third Party (independent) Inspectin Yes/N Debate Wh, Cst, held t specificatin, Lcatin and raw materials. Currently n requirement in 15HR fr 3 rd party independent verificatin f qualificatin testing, API licenses facilities and perfrms Audits. API (Shail Ghaey) t lk int whether r nt API can require additinal independent testing r verificatin. What is the cmmn practice and guidelines within ther API standards? Custmer can require 3 rd party independent f standard. 15HR- Jint related recnfirmatin testing determine methd f qualifying jint related changes. 1) Cmprehensive: Full jint regressin per ASTM D2992, and requal similar per sectin 12 2) Alternate: Treat jints equal t fitting qualificatin in 15HR, shrter versin f regressin test sectin ) Alternate shrter term methds? Example within presentatin? Recgnize nt all jint aspects have regressin behavir, and even if they did, may nt have the same rate f degradatin as the pipe. All t cnsider this subject and cme t next meeting with prpsals 15HR Appendix A.9 All cmpnents differ slightly, requires clarity as t acceptable limits Require defined tlerances befre a change is cnsidered majr. Example in presentatin Min inside diameters and custm sizes, Require standardizatin that des nt suggest a limit t pipe sizes. Example in presentatin- Prepare t make decisin n this next meeting Threads and gauging practice Discussin n master gages, and nn-standard jints, etc. Agreed, access t master gages t change t thread dimensins shall be dimensined and traceable t an internatinal standard. i.e. API 5B threads traceable t a certified API master gage is sufficient. This sectin is cmmnly misinterpreted. 4

5 OD/t - Recmmendatin t g with thin wall pressure equatin #2- Same as D2992 and ISO General acceptance t cnsider mit the D/t requirements r mdifying limit t 20 instead f 10. Examples in presentatin. Cnsider and prepare t make decisin next meeting. Burst testing D1599 cnsensus that default ASTM D1599 is nt very useful, manufacturers typically test fr lnger perids f time when attempting t establish meaningful results. Agreement t mdify time frames and pressure rates. i.e. 2 minutes r rate and/r linear pressure rate increase t failure. Cmpnent marking Manufacturer, API, Size, ID. Recmmendatin- 15HR marking requirements clearly referenced in single lcatin. Include as a minimum : API 15HR Standard pressure rating at standard temperature 150F. Suggest t refine pressure increments t smaller increments instead f 250psi abve, pssibly nly fr larger diameters, i.e. > 10in. Prepare t make decisin n this next meeting. David Grandersn t prpse alternate wrding t Sectin 9 15HR ASTM-D Measurement and Clarificatin f reinfrced wall thickness nt in frmal presentatin, incmplete slides presented. Prpsed clarificatin: A) Ttal wall thickness (included reinfrced and nn reinfrced) - result f cmpleting the prcedure in ASTM D3567. The result r (wall thickness) f the measured pipe sectin is the average f the 6 required measurements at a specific lcatin alng the pipe length. One may search fr the smallest dimensin t begin dimensining the pipe sectin, but the remaining 5 dimensins must be evenly spaced 60 degrees apart arund the circumference f the pipe sectin per D3567 t determine the measured wall thickness f that pipe sectin. B) Reinfrced wall thickness Precisely the same as in (A) but includes subtracting nn reinfrced areas at each f the 6 measurements. C) Minimum reinfrced wall thickness Guaranteed minimum value which can be btained fllwing (B). i.e. regardless f where the pipe is sectined, the resulting reinfrced wall thickness shall nt be less than guaranteed minimum reinfrced wall thickness given by the manufacturer. limitatins need t be placed n allwable variatins within the 6 bservatins. Example: n single measurements r bservatin may be less than 90% f the stated minimum reinfrced wall thickness. FGS t fllw up n this subject next meeting 5

6 TUESDAY June 15 th Al Wilkes and Tim Dyer jin meeting t review 15S, 15LT 15S discussin Discussin pints by Flexpipe, Mr. Weller Review f Scpe High Strength fibers added t bdy f scpe, nt single ut single type f reinfrcement General agreement D-3350, PE80 and PE 3608 Appendix A- Additinal requirements fr prducts using dry fiber re-infrcement. Recmmend t remve frm specificatin reference requested. General agreement nt t single ut a reinfrcement methd. Ph level- Measure all ph level r 3-9 Appendix A- Measure level f Ph. Why widen the specificatin? Mve frm recmmended Practice t Specificatin Blaine Weller t Lead Requires shall and nt shuld, and reference t applicable test and inspectin standards which are applicable fr all manufacturing methds Dimensin and Pressure- 6 in limitatin due t ability t spl and transprt. Need t pen up. N need t limit size and pressure Fix- Maximum Service Pressure- depends n liquid being mved (water gives lwer rating that hydrcarbn) Regressin testing- Pipe wall failure vs. jint failure. * Shuld jints be included r be tested separate n regressin testing? Tabled until we see what happens t 15HR and then determine hw t mve frward. (lts f discussin!) One argument- Jint shuld be included with cmpensatin factrs r test each n there wn. PSF shuld be maximum service 1.5 factr r.67. Use language frm 15HR fr 15S. Cyclic Pressure Service Factr defined as +/- 20% Ex. 1,200high 1,000mid 800lw. Defined as if during service there is a pressure that ges up r dwn 20% nce per day. If cyclic applicatin need t have cyclic data. Cyclic testing data needs t reflect the actual applicatin with built in safety factr. All pipe is cyclic t sme degree, define limits t cyclic / static Failure in Thermplastic pipe is a rip in the liner (ht dg split) Hydrcarbn / thermplastic permeatin discussin - Care nt t indicate in API RP s/ r specs that chemical resistance is sufficiently addressed in d scpe 6

7 Prpse new prductin line qualificatin same facility requires requal - Shuld this be a new qualificatin r requalificatin f prduct? Flexpipe- Requalificatin D S participants- Future Pipe, Flexpipe, Fiberspar Factry Pressure Testing- 1.5 times pressure rating culd damage ciled pipe. Prpse t g with 1.25 fr lnger time f 2 hurs. Pipe is axially stressed due t ciling, lnger test time may cmpensate fr lwer pressure. Additinal thught n time vs. pressure fr next meeting. Pipe size table fr Thermplastic Pipe- Small number f sizes. Table t be added t 15S with the sizes. reference standard n hw t measuretg Testing- 3 rd party shuld cnfirm r nt? Recmmendatin t be made by API. Suggestin: If ISO certified plant yu d nt need 3 rd party. API 15LE- Ductile and Brittle failure nly parameters reductin f burs testing requested Perfrmance pipe Only ne failure in 43 years. Wuld like t change the wrding in the specificatin (Reference handut frm Al Wilkes) Need t define whenever prductin cnditins change. D2513 and API-15LE- wuld like t change bth standards r trying t Ballt prcess- Vte at next meeting, Can vte n a prtin r whle standard, Wrk grup leads write the dcuments, Sending a ballt initiated by API One cmpany ne vte Can wrk with ther members directly t get vtes 1. Justificatin fr revisin 2. Send change t Shail 3. Shail sends ut ballt fr change 6 weeks prir 4. Ballts g t cmmittee chairs 5. 50% participatin required 6. 2/3 f ballts needed t re-affirm vters fr Fiberglass vtes fr splable prducts API (Shail Ghaey) Pririty t be given fr API 15HR as it is verdue fr review and reaffirmatin. End Meeting ntes by: Eric Jepsn and David Grandersn 7