Risks and Challenges of Deepwater Pipeline Design and Installation.pdf

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DNV GL © 2014 18th JUNE 2014

SAFER, SMARTER, GREENER DNV GL © 2014

19th October 2014

Edwardus NG, BD Manager O&G Asia Pacific

OIL & GAS

DMFT2!",#$u$ai %$ina

1

深水深水深水深水管道管道管道管道设计设计设计设计及及及及安装安装安装安装的的的的风险和挑战风险和挑战风险和挑战风险和挑战

Riss and %$a''enges (f Dee)wa*er Pi)e'ine Design and Ins*a''a*i(n



DNV GL © 2014 18th JUNE 2014

DN+ GL A new c(-)an. wi*$ !/ .ears (f e0)erience

DN+ and GL N(1'e Den*(n (ined f(rces in Se)*e-1er 2!34 5e67e drawn

u)(n (ur )r(ud $eri*ages *( crea*e8

Greater and deeper technical expertie

Extended !lobal reach

"o#r $#ine %rea & 'e( ) $n U*D+

1,-000 e.plo/ee in )00 oice &hina 1-200 e.plo/ee+

3 o re(en#e co..itted to 'D ann#all/ &10 5*UD+

2



DNV GL © 2014 18th JUNE 2014

Dee)wa*er Pi)e'ines in unc$ar*ered *erri*(ries

)

O1ec*i7es (f Presen*a*i(n

6reent o.e 7e/ ri7 and challen!e hen dei!nin! and intallin!deepater pipeline

'eco..end poible approach and ol#tion to o(erco.e thee ri7and challen!e &baed on O*"101+

Year(DW) Global Offshore

O&G Supply from

deepwater

2013 7

2020 17



DNV GL © 2014 18th JUNE 2014

S(-e Dee)wa*er Pi)e'ine Pr(ec*s 9designed *( DN+GLOSF!!:

4

Bluestream

RIL KG-D6

South Stream

ProjectWaterdepth

SizeNo.

LengthCompleted

(m) (in) (km)

Blue Stream 2200 2 2 00 200!

"rmen Lange #000 #0 2 $00 200%

&'* 2#00 2 2 $0 200+

South Stream 2200 #2 ,#0 ongoing

Or.en Lan!e



DNV GL © 2014 18th JUNE 2014

5

Riss and %$a''enges ; Dee)wa*er )i)e'ines

*o.e 7e/ 'i7 and hallen!e are:

1; <all thic7ne dei!n

2; =ntallation challen!e

); "lo %#rance 6re(ention o >/drate

4; */te. pre#re tet

; Geoha?ard

,; 'epair /te. or #ltradeep ater



DNV GL © 2014 18th JUNE 2014

6

Dee)wa*er c$a''enge <! ; Pi)e'ine c(''a)se

5a'' *$icness design

'i7 and hallen!e:

– >i!h external pre#re .ean pipeline collape ail#re

.ode !o(ern all thic7ne dei!n rather than pre#recontain.ent @ b#c7lin! ( /ieldin!

– 5an#act#rin! o thic7 all pipe .a/ li.it proAect optionand proAect eaibilit/; an the/ be prod#cedB

– an the pipeline be laidB

– 6roAect (iabilit/ oten depend on ha(in! an opti.al allthic7ne hich pro(ide adeC#ate tren!th- can be.an#act#red and intalled at an acceptable cot;

*ol#tion:

– Ue o li.it tate dei!n approach to opti.i?e allthic7ne dei!n e;!; O*"101 tandard

– *peci/ i.pro(ed linepipe propertie a!aint collapeail#re b/ i.pro(in! co.prei(e /ield tren!th- balancebeteen tren!th and to#!hne and i.pro(in! linepipero#ndne

– J#ti/ #e o le coner(ati(e aet/ actor thro#!htechnolo!/ C#aliication



DNV GL © 2014 18th JUNE 2014

Li-i* S*a*e Design a))r(ac$ *( ()*i-ise wa'' *$icness

DNVGLO*"101 *#b.arine 6ipeline *tandard: *ect Dei!n



DNV GL © 2014 18th JUNE 2014

8

Dee)wa*er c$a''enge <! ; Pi)e'ine c(''a)se

5a'' *$icness design

'i7 and hallen!e:

– >i!h external pre#re .ean pipeline collape ail#re

.ode !o(ern all thic7ne dei!n rather than pre#recontain.ent

– 5an#act#rin! o thic7 all pipe .a/ li.it proAect optionand proAect eaibilit/;

*ol#tion:

– Ue o li.it tate dei!n approach to opti.i?e allthic7ne dei!n e;!; O*"101 tandard

– *peci/ i.pro(ed linepipe propertie a!aint collapeail#re b/ i.pro(in! co.prei(e /ield tren!th- balancebeteen tren!th and to#!hne and i.pro(in! linepipe

ro#ndne

– J#ti/ #e o le coner(ati(e aet/ actor thro#!htechnolo!/ C#aliication



DNV GL © 2014 18th JUNE 2014

9

En$ancing %(''a)se %a)aci*. (f =OE Pi)es

hic7 all dei!n F 0.. i on the border o the

capacit/ or linepipe .an#act#rin! ind#tr/

6ipe .an#act#rin! proce &UOE+ red#ce

co.prei(e /ield tren!th b/13 &'e: DNVGL

O*"101+

*t#die ha(e hon that the tren!th can be

retored b/ li!ht heat treat.ent e;!; d#rin!

application o external coatin!

DNVGL ha been in(ol(ed in a technolo!/C#aliication proAect ith the ai. o #tiliin! thi in

dei!n

"oc# on o(alit/ ca#ed b/ .an#act#re proce

&pipe or.in!+

U-ing andO-ing Expansion

Compressive

yield strength

reduction due to

Bauschingereffect

Collapse

Strain

S t r e s s



DNV GL © 2014 18th JUNE 2014

%(''a)se ca)aci*. (f )i)e'ines ; design re>uire-en*s

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DNVGLO*"101 *#b.arine 6ipeline *tandard: *ect Dei!n



DNV GL © 2014 18th JUNE 2014

%(''a)se 1uc'ing ca)aci*. 9D?*: 7s wa*er de)*$

Validity range: D/t = 15 - 45



DNV GL © 2014 18th JUNE 2014

12

Ris and %$a''enges ; Dee)wa*er )i)e'ines


24 Ins*a''a*i(n c$a''enges


4; */te. pre#re tet; Geoha?ard




DNV GL © 2014 18th JUNE 2014

13

Dee)wa*er c$a''enge <2 ; Ins*a''a*i(n

Ins*a''a*i(n

'i7 and hallen!e:

– >i!h train co#pled ith hi!h external ater pre#re

ith increaed ri7 o local b#c7lin! and ract#re

– >i!h pipela/ (eel tenioner capacit/ reC#ired;

5ore trin!ent reC#ire.ent to tenioner holdin!

– %bilit/ to detect b#c7le and repair a et b#c7le

*ol#tion:

– Ue o li.it tate dei!n approach to chec7 a!aint local b#c7lin!- o(aliation andto opti.i?e all thic7ne pipe ei!ht

– *peci/ #pple.entar/ linepipe .aterial propertie or hi!h train and additionaltetin!

– *peci/ #pple.entar/ di.enional propertie o the linepipe

– Ue o En!ineerin! riticalit/ %e.ent or !irth eld ae.ent

– *el propelled b#c7le detector craler ith re.ote enor &e;!; .icroa(e b#c7ledetector #ed on *000+

*e(en $oreali @ co#rte/ o *#bea

o#rte/: *aipe.



DNV GL © 2014 18th JUNE 2014

En$anced -a*eria' and di-ensi(na' )r()er*ies f(r frac*ure and1uc'ing c(n*r('

14

DNVGLO*"101 *#b.arine 6ipeline *tandard &201)+ : *ect



DNV GL © 2014 18th JUNE 2014

15




); "lo %#rance @ 6re(ention o >/drate





DNV GL © 2014 18th JUNE 2014

16

Dee)wa*er %$a''enge <3 ; @.dra*e )'ugs

Source:www.ntnu.no

F(r-a*i(n (f @.dra*e )'ugs

'i7 and hallen!e:

=n the e(ent o a .all lea7a!e- eaater in!re into a deepater!a pipeline &external pre#re F internal pre#re+ can lead toor.ation o h/drate;

Lar!e >/drate pl#! .a/ or. @ >o lar!eB >o to inter(eneB

*ol#tion:

6ai(e pre(ention /te.

– =n#lation &coatin!- 6i6- b#ndle+

– renchin!

– 6arallel trenched pipeline

%cti(e pre(ention /te.

– =nAection o .ethanol!l/col &5EG+

– >eatin! @ electrical- circ#lation o hot ater

– Deh/dration o pipeline

'eacti(e >/drate re.ediation

– Depre#riation

– =nAection o .ethanol!l/col &5EG+

– >eatin!

F l u i d P r e s s u r e (

M P a )

Temperature (C)0

Increasing MEG injection

Hydrate dissociation curves

Exa.ple o a >/drate or.ation c#r(e



DNV GL © 2014 18th JUNE 2014

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); "lo%#rance @ 6re(ention o >/drate pl#!





DNV GL © 2014 18th JUNE 2014

18

Dee)wa*er %$a''enge <" ; Re'e7ance (f s.s*e- )ressure *es*

S.s*e- Pressure Tes*ing

'i7 and hallen!e:

5ot pipeline code reC#ire ield pre#re tetin! ater intallation to 1;1

to 1;2 ti.e dei!n pre#re; <here the external pre#re i .#ch lar!er

than the internal pre#re- i thi tet rele(ant and practicalB

– he /te. tet pre#re .a/ ca#e lateral b#c7lin! o the pipeline;

– 'eC#ire h#!e co.preor to e.pt/ the pipeline;

*ol#tion:

%dopt DNVGLO*"101 pro(iion or /te. pre#re tet ai(er

&*ec; $20)+



DNV GL © 2014 18th JUNE 2014

5ai7er f(r S.s*e- Pressure Tes* 9DN+GLOSF!!:

19

DNVGLO*"101 *#b.arine 6ipeline *tandard &201)+ : *ect



DNV GL © 2014 18th JUNE 2014

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DNV GL © 2014 18th JUNE 2014

21

Dee)wa*er c$a''enge </ ; Ge($aards Ge($aards

'i7 and hallen!e:

*teep lope

Looe *edi.ent

*lope intabilitie and .#dlide

#rbidit/ lo

*ei.ic acti(itie

EarthC#a7e ca#in! eabed a#lt

Une(en eabed ca#in! lon! reepan

Lac7 o #itable .ethod or eabed inter(ention

*ol#tion:

– %deC#ate characteri?ation o eabed and!eo.orpholo!/

– Opti.ie ro#tin! o pipeline coniderin! potentialha?ard- aet/- .ini.ie pre and pot la/ inter(ention

– %ppl/ ad(anced anal/e and dei!n here ha?ardcannot be a(oided;

Tur1idi*. curren*



DNV GL © 2014 18th JUNE 20142)

DNVGLO*"101 *#b.arine 6ipeline *tandard &201)+ : *ect )

*ee alo *ec; ) 00 *eabed 6ropertie

Soil & seabedcharacterisation

Seismichazard

Slopestability

Mass gravityflows

Pipelineintegrity

Dee)wa*er c$a''enge ; Ge($aards



DNV GL © 2014 18th JUNE 2014

Frees)an assess-en* 1ased (n DN+GLRPF!/

24

L(ng frees)an Mu'*i-(de res)(nse

%d(anced ae.ent o lon! reepan ith .#lti.ode repone can re#lt in

#btantial cot a(in! in eabed inter(ention;



DNV GL © 2014 18th JUNE 2014

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Dee)wa*er c$a''enge < ; Re)airs

Da-age and Re)airs

'i7 and hallen!e:

<et b#c7le d#rin! intallation

Da.a!e d#rin! operation

=n!re o eaater h/drate pl#!

Un#itable oil en(iron.ental condition

Lac7 o di(erle repair /te. or #ltra deepater

*ol#tion:

E.er!enc/ repone proced#re .#t be etablihed

De(elop and C#ali/ repair .ethod #itable or peciicpipeline /te. and en(iron.ental condition



DNV GL © 2014 18th JUNE 2014

%(nc'usi(n

28

6reented o.e o the 7e/ ri7 and challen!e o deepater pipeline;




4; */te. pre#re tet

; Geoha?ard


hee can be .iti!ated b/:

Ue o appropriate tandard- peciication and reco..ended

practice or deepater application

Uin! Li.it *tate dei!n approach to opti.ie dei!n

o.preheni(e !eotechnical and en(iron.ental in(eti!ation to

red#ce #ncertaintie ith LoadH

*peci/ enhanced #pple.entar/ propertie o linepipe

%ddre intallation- tetin! and operational challen!e at the

dei!n ta!e to i.pro(e la/abilit/- reliabilit/ and to .ini.ie#bea inter(entionH

loe #r(eillance d#rin! .an#act#rin!- intallation and tetin! to

en#re dei!n condition and a#.ption are .et;



DNV GL © 2014 18th JUNE 2014

SAFER, SMARTER, GREENER

www4dn7g'4c(-

谢谢谢谢谢谢谢谢

29

Edwardus Ng

Business De7e'()-en* Manager, DN+GL Oi' & Gas Asia Pacific

Edard#;N!Idn(!l;co.

Risks and Challenges of Deepwater Pipeline Design and Installation.pdf

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