API RP 1111 4th Ed. Dec. 2009 - Design, Construction, Operation, and Maintenance of Offshore Hydrocarbon Pipelines

79 Pages·2007·7.72 MB·English

by  API

Design, Construction, Operation,
and Maintenance of Offshore
Hydrocarbon Pipelines
(Limit State Design)
API RECOMMENDED PRACTICE 1111
FOURTH EDITION, DECEMBER 2009
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Design, Construction, Operation,
and Maintenance of Offshore
Hydrocarbon Pipelines
(Limit State Design)
Downstream Segment
API RECOMMENDED PRACTICE 1111
FOURTH EDITION, DECEMBER 2009
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Special NOles
API puOIc.tiQns neces&arily a<ldr= problem. 01 a general nature. Wi1l1 respect to parlbJlar d<cumsta<>;;es.~.
state. and !ede<aI lows and regulations $IlOOJd be rev;e..ed.
Neither APi ..... any 01 APr. empo~. sutx:ontracto<t consultan ... ~ees. 0< other assiQn<>e. make any
warranty or representation, either ""Prt!$$ or implied, with JeSIleCI to !he aa:ur1OC)'. compIeleness, or uoelulne$$ 01 the
information contained herein. Of a"",""" any liability Of responsblity !or any use. Of !he results 01 sud1 use. of any
informat"", Of ~ llisctc"d in this pubiicatioo1. NeiIIIer APt ..... any 01 API'. employees. subo:lntn,etOfs.
~tanls. Of o!her assignee. represent 1I1a1 ...... 0I!hi. puOIication wwld no! infr'<lge upon privately owned rig1tt..
CI..,;s;!ied Meas m"Y vMY deperOng on the Iocalion. oondilions. equipment. and substllnoe. in_ in any gi ........
situation. Use~ 0I1I1is rocorrrnenOed pr-..ct>:;:e (RPI should consult with !he appropriaIo .... tI-o:>rities h""';ng juris<icIion.
User. of !his RP $IlOOJd no! rely exdusively on the information contained in !his do<unenl Soond busine .... sdenti!lc.
engir""r..-.g, and safety judgment should be used in employing !he inlonnation contained herein.
API ~\ion$ may be used ~y anyone de$Dlg to <kl 50. Eve<y..tJorl hits been made by the Institute to aSSUre !he
""""""Y...-.:Ic roenlinabciclitt"y" 0 1 the Mta contained in !hem; ho". ....e r. the l"'t"lIIe makes roo representation . ... arranty, Of
gua<antee in with thi. pWlication and he<eby expre&&ly <lisdaims any liability Of r~ity for 10 .. 0<
damage resulting !rom 'IS LJ$e or for the violation 01 any ttuIhoritie. having j<.oisdO:::I"" wilh...tlicl; !his po.bIicaIion may
con~d,
API publications a<e published to laciitate the broad avai'abiily 01 proven, .......-.d engi-leemg and operating
""~. These 1'JbIica\ion$ lire r-.;Jt intended to obviate the need lor 1II'Pij'ing .......-.d engl'e",ioog ~
regarding -.. and -..toera !he. .. putjicalions should be lIIiIiz«I. The IomUation and pubiicatioo1 of API ~.\ion$
is no! intended in any way to inIoN: anyone from U&ing any othe< practices.
MY manufacturer marking equipment Of maler"'l. in conloom"""" with the ma.1<ing requirements of IOn API .tandard
is solely responsible !or co:nplying ... i\t1 all the ow'icabIe raquirementt. of lMl standard. API does no! represent.
w""""t, Of \lUaran\e<! 1I1at sud1 pmi<Ocls <10 in fact conloom to !he appIicaI>Io API stand..-d .
_al .'fI'''''.
.... nutu "'I""'""".
_.....-d. No portal <his....-lt",..,. be ~, nons"l-o'ttI-&.::ol,J -I.,...:.,.! in a. .. Of.........,.,&:1 boj
il i .i· .... .." _ . pI<*X",,~, _tllng, Of <A_tow, ~ pern-Oosb1 f""" "'-~. ConIaG! "'
POOtI_, APt ~ Services. 1220 L su-..,INI, W"'hin;/Ion. DC 20005.
~ Ie> 200!1 """"""'" Plr.-.,." ..._
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Contents
,
, Scope .. ...... . .. .... . .. .... . .. .... . .. .... . ...... . .... . .. .... . .. .... .. .... . .. .... . ...... I
, Normativl Reflrence.. . . .. .... . .. ...... . ...... . .... . . . .... . .. .... . .. .... . ..... . .... 3
,. ,
Tlrms, Detinijions, Ae«>nyms, Abbreviations, and Symbol. .. .... . .. .... . .. .... . .. .... . ...... . .•
.... ..... ....... .•
Terms and O'finitions . ..... .. ..... .. ..... .
3.2 Acronym •. Abbrevt.tlon., and Symbols .... .. ..... .. ..... .. ..... .. ...... . ..... .. .... ...... 6
• O'.lgn. . ..... .. ....... ....... ..... .. ..... .. ..... .. ..... .. ..... ....... .... .. . .... . 8
•. 1 O'slgnConditions... . .. .... . .. .... . .. .... . .. .... . .. .... . .. .... . .. .... . ..... . . . .... 8
•. 2 O'.ignCrijeria. . .... . .. .... . .. .... . .. .... . .. .... . .. .... . .. .... . .. .... .. .... . . .... II
•.3 Pressure DesignofCompDnenll. .. ..... .. ..... .. ..... .. ..... .. ..... .. ..... ..... .... . .... 12
•.• MaoineO'.lgn. . ..... .. ..... .. ..... .. ..... .. ..... .. ..... .. ..... .. ..... .... . ...... 18
•. 5 Fati_Analysis .. .... . .. .... . ...... . ...... . ...... . .... . .. .... . .. .... . ..... . .... . .. .... . 20
.••G Lo;odUmibo .. . .. .... . .. .... . .. .... . .. .... . .. .... . .. .... . .. .... . .. ..... . .... . .... . .. .... . 21
•.7 Valves. Supponlng Elements, Ind Plplng .. ..... .. ....... ....... ....... .. ..... ..... .... ..... Z2
,
•.8 RouteSelec:t;on . .... . .. .... .. .... . . . .... . .. .... . 23
Flow Assurance . .... . .. ... . .... . 23
,•. 10 Thermal EXp"nsion o.sign .•••••••• .•.•••• 204
..,
Materill. and Dimen.ions . ..... .. ..... .. ..... .. ..... .. ..... .. ..... ....... ..... .. ..... .. .. 204
Material • ..... .. . .. ..... 204
" Dimension •. . .. .... . .. .... . .. .... . .. .... . .. .... . .. .... .. .... . .... . .. .... . 25
6 SaletySystem. . .. .... . .. .... . .. .... . .. .... . .. .... . . ..... . .......... . .. ... 25
G.l Gene"" . .... . .. .... . .. .... . .. .... . .. .... . .. .... . .. .... . .. .... . .. .......... . .... . .. .... . 25
6.2 Liquid and Go. TnonlpDftltion System. on Nonpruduction Platforms . .. ..... .. ..... ....... ..... 25
6.3 Liquid and Gas T",nspDftlllon Systems on Production Platform...... .. ..... ....... . . .... .. 25
6 .• S"'. .._ Connectors... . . .. .... . .. .... . .. .... . .. ... . . .... . .... . :n;
7 Con.truction . .... . .. ...... . ...... . ...... . .... . .. .... . .. .... . .. .... . .. .... . .. :n;
and~ldlng
7.1 Construction .. . .... . .. .... . .. .... . .. .... . .. .... . .. .... . .. .... . .. .... .. .... . .... . .. .... . :n;
7.2 Welding. ..... .. ..... .. ..... .. ..... .. ..... .. ..... .. ..... .. ..... ...... . . ..... ..... .. rr
.,
7.3 OtherCompononts.ndProcedures. . .... . .. .... . .. .... . .. .... . .. ...... . .. .. . . . .. . .. ... 29
•
•. Inspection and Telling .. ..... .. ..... .. ..... .. ..... .. ..... ....... ....... .. ..... .. ......... 3G
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Gene"" . .... . .. .... . .. .... . .. .... . .. .... . .. .... . .. .... .
. ~
Tes~ng . ..... .. ..... .. ..... . ....... ..... .. ...... ..... .. ..... ..... .. 32
9 Operation and Maint ..... nce .... . .. ...... . ...... . ...... . ...... . ...... . .... . .. .... . .. .... . .. J.oI
9.1 System G4Jldellnel . .. ..... .. ..... .. ..... .. ..... .. ..... .. ..... .. ....... .. .... . .... J.oI
9.2 Pipeline Operation.. .. .. .... . .. .... . .. .... . .. .... . .. .... . .. .... . .. .... . .... . . .... . 3S
9.3 Emergency Plan. ...... . .... . .. .... . .. .... . .. .... . .. .... . .. .... . .. .... . ..... . . . .... . 38
9 .• Record.. ..... .. ..... .. ..... ....... ....... ....... ..... .. ..... .. ...... ..... .. . .... .. 39
9.5 Cualillc.ation ofllle Pipeline System for Higher Operating Pressure ..... ....... ..... .. ..... .. ... 39
9.6 Change in Pipeline Use. . .... . .. .... . .. .... . .. .... . .. .... . .. .... . .. .... . .. . . ... . 39
9.7 PipelineAbandonmenl. . .. ..... .. ..... .. ..... .. ..... .. ..... . .... .. ..... 39
'" COm:>lion Control . .... . .. .... . . ..... . ...... . ... . . . ... 4(1
to.l General ..... .. ....... ....... ..... .. ..... .. ..... . . .. • • • .. • • • .. • .. ..... 4(1
10.2 ExternalCo;oUngs .. . .. .... . .. .... . .. .... . .. .... . .. .... . .. .... . .. .... . . . .. •• • 4(1
10.3 Cathodic Protection ..... . .... . .. ...... . ...... . ...... . ...... . ...... . .... . .... . . 1
'" IntemaICOtTosionControl . .. ..... .. ..... .. ..... .. ..... .. ..... .. ....... .. . ..... • 1
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Design, Construction, Operation, and Maintenance of Offshore Hydrocarbon
(Limit State Design)
Pip~ines
1.1 This recommended prada (RP) sets ""teri3 10< II>e design. o:>I"ISIIUCIioI. testing. operation. and mai"""'a"",
01 o!W>oro .~ pipe'nes ~i<ed in II>e p<o<Iuction. p<o<Iuction ~. 0< transportation 01 ~rbons; !hal is. the
"..,.""""" by pipeine 01 hydrocarbon liQuids. II"se• • and mixtures 0I 1hese hydrOClll'bot1. with walel. This RP may
also be UIi'ZN 10< ..a ter injecliol1 pipelines oIIsho<e.
1.2 The RP also awlies to any tn'noportation pipi'lg !acilitie. k;ated on a pnlduction p!at!e<m downstream of
separation and lre.tmMt lacilities, indoding melel !""liIie •• 9"s CO<I1pression !_s, liquid p.mps, "oS' xiated
pipi'lg, OI"ICI appu<te""roces.
1.3 lirnit .tate design has been ~ed in !his RP to provide a unilonn factor 01 $alet)' with ",SpeC! to rup!~
g..-.
0< burst loilu<e as the primary design O:>rId~>on independen1 01 II>e pipe diameter, ....t lhid<rless. OI"ICI
8riground on !hoo<y and pra<:!i<:e 01 ..... t state. fur pre ........ -wntain<ng ~ may be ku>d in HiM [2J and in
~ .. nd and .)one. 111, as •• ted in the Bib!iogoll\1hy at the end of the RP. Bont design Gri!e<ia within !his practi<::e ....,
preSMdy defined lot carbon steel line pipe. Application of the proposed design Cfilelia I<> other motenals requires
determination by the use< 01 the ...i llilOOJm blot cri!O<ia using the p<o<:ed~ set Iorth in Annex A.
1.4 The design, """,SIrIJOtion, inspecl>on, and testing provisions of !his RP may not apply I<> ollshore hydrocarbot1
pipel ..... de,-g;.ed 0< installed beIo<e this latest r8\Oision of tl>e RP was issued. The opemt>on and mairII..,a"",
provision. 0I1his RP "'" sui!aOIe fur awlicalion to existing !acilities_
1.5 Design and ronstn>CI>on pracboe. _ than those sellonh in Se .... ., 4 and SeOlion 7 may be employ<!<! whM
IUworted by adequate ~ justification. incIooing rnxIcl 0< proof testing 01 involved components 0< proce<Ii..>res
a. app'OI>" te_ Nothing in this RP should be """,sidered ItS a b ed rule fur application -..;tt.o<.t ~ard to $OUrol
engineering judgment.
"NO'-TE" '" .C""e"rt"aoind 1oJO '," .. ,,, .. oIaI ~nto '" """""""I'~.",. .... y _ ""'" Iho"- lie! bth in I. .. RP, """ tI-.io RP
ov..ooe ""'" ~iIr«ing r.q....-...-Of speokat.",..
1.6 This pubIicaticII1 has incorporated by re/e(ence '" 0< parts of se_ existing oodes, stand3fds, and RPs lha1
have been Ioond acceptable fur application to ofIsho<e hydrocarbon pipelr.os_
Caulio~se .. shall use 1M mosl recenl editions of all reference documents in Ihis RP. For ASME B31 .•
and ASME 831.8 spec~icaHy. Ihe 2006 edilion and the 2007 edilion, respeclively. of the documents were used
as the Ioa,i, fDr do"'''''ining the requirements. How,""", the ",f&en"" i, meanllo b< ID the c""",JIOOo:/ing
par1 ln Ihe lalesl revl. lon 0< edition of the publication.
1.7 FOI' a g.-aphic ~1ation 0I1I>e 00'JIl<' cI this RP, :sec Figure ,_
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valve 00 productioo facitt. ..
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e l'fO'IocIion pIotbm (lIxed or 1_It"i_oy ) '--, :,-,- : 12
9 I'<'f"I' Illation or ~_ " , -.I.....-
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11 l'fO'IocIion pIotbm (lIxed or _ ioy)
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Broken lines. 00"" scopo of "'is RP
Figure l -ScOl'e ofAPI 1111
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