weldinspecon% inthe%firing%line% - subsea uk · 2017. 2. 6. · inline%weldinspec+on ....

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Weld inspec+on in the firing line Richard Brown, Engineering Manager

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Page 1: Weldinspecon% inthe%firing%line% - Subsea UK · 2017. 2. 6. · Inline%weldinspec+on . Inspoolbasesandonpipelayingvessels Currently,weldinspeconservicesarerequiredtodetermineifa

Weld  inspec+on  in  the  firing  line    Richard  Brown,  Engineering  Manager  

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Introduc+on.    •  Oil  and  gas  sector  s6ll  faces  challenging  6mes  •  Supply  chain  placed  under  huge  strain  •  Barrel  price  nearing  US$60/bbl  in  2017  •  Green  shoots  of  recovery  star6ng  to  appear  •  Projects  star6ng  to  emerge  

So  what  is  OMS  doing  about  this?  

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Innova+on.  Crea6ng  technology  to  meet  sector  demands    

Collabora+on.  Partnering  with  organisa6ons  to  exploit  strengths    

Flexiblity.  Offer  agile,  versa6le  and  tailored  services      

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Focus  on  innova+on.    How  can  innova6on  play  a  role  in  such  challenging  market  condi6ons?  By  providing  the  route  to  discovering  previously  uniden6fied  cost-­‐efficiencies  that  enable  projects  to  become  viable  in  the  short  term  and  profitable  in  the  long  term.      Weld  inspec+on,  specifically  in  the  firing  line  is  one  area  where  pipeline  operators  can  benefit  from  new  technology.  

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Inline  weld  inspec+on.  In  spoolbases  and  on  pipe-­‐laying  vessels  Currently,  weld  inspec6on  services  are  required  to  determine  if  a  weld  meets  specifica6on  and  to  iden6fy  poten6al  defects  in  order  to  ensure  integrity  over  the  pipelines  life6me.  

Current  methods  include:  

•  Automated  Ultrasonic  Tes6ng  (AUT)  •  Radiography  Tes6ng  (RT)  •  Internal  laser  and  camera  inspec6on  (OMS)    

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OMS  inspec+on  process.  

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Why  inspect?  Achieving  a  consistently  high  quality  of  welded  joint  is  crucial  to  subsea  pipeline  construc6on.  The  internal  laser  and  camera  inspec6on  of  a  pipe  joint  will  help  to:  

•  Ensure  specifica6ons  are  met  •  Reduce  6me  taken  for  cut-­‐outs  and  weld  repairs  •  Minimise  unnecessary  down6me  •  Assure  asset  lifespan  •  Prevent  pipeline  failure  

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Weld  inspec+on  considera+ons.  •  Inspec6on  can  occur  at  a  spoolbase,  or  offshore,  in  both  

the  horizontal  (S-­‐Lay)  and  ver6cal  (J-­‐Lay)  orienta6ons  

•  Stringent  welding  specifica6ons,  e.g.  for  CRA,  may  specify  camera  and  laser  profilometry  

•  For  offshore  welding,  early  inspec6on  is  essen6al,  ie,  immediately  a_er  the  root  and  hot  pass  

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Where  does  laser  profilometry  fit  into  an  inspec+on  strategy?  For  CRA  lined  pipe  projects,  100%  inspec6on  of  the  root  pass  is  mandatory:  

•  The  boundary  between  the  CRA  liner  and  the  pipe  wall  interferes  with  the  Ultrasonic  technique  when  inspec6ng  zone  C  

•  As  a  result  Radiography  is  used  to  assess  the  root  and  hot  pass  (zone  C)  before  the  fill  passes  are  added  

•  Both  these  techniques  have  difficulty  accurately  quan6fying  excess  root  penetra6on  or  concavity,  this  is  where  laser  profilometry  is  the  most  applicable  technology  

Page 10: Weldinspecon% inthe%firing%line% - Subsea UK · 2017. 2. 6. · Inline%weldinspec+on . Inspoolbasesandonpipelayingvessels Currently,weldinspeconservicesarerequiredtodetermineifa

Weld  features.  Detected  and  quan6fied  by  laser  

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Wire  inclusion   Lack  of  penetra+on   Burn  through  

Concavity   Burn  through   Poor  purge  

Weld  features.  Detected  by  camera  

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Introducing  AugaTM    

Page 13: Weldinspecon% inthe%firing%line% - Subsea UK · 2017. 2. 6. · Inline%weldinspec+on . Inspoolbasesandonpipelayingvessels Currently,weldinspeconservicesarerequiredtodetermineifa

Technology  innova+on:    Auga™  Can  be  used  on  a  Lay  Barge  or  a  Spoolbase  firing  line      

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AugaTM  overview.  Real  6me  verifica6on  in    the  firing  line    •  Abaches  to  the  rear  of  the  Internal  Line-­‐Up  Clamp  (ILUC)  

and  performs  a  complete  360°  scan  of  the  root  pass  in  under  20  seconds  

•  Adjusts  scan  head  posi6on  for  different  pipe  lengths  

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Seamless  integra+on.    

•  Auga  weld  inspec6on  takes  place  in  parallel  with  fill  passes,  thereby  staying  off  the  cri6cal  6me  path  

•  Works  in  conjunc6on  with  WeldAnalysis  so_ware  •  Records  detailed  weld  geometry  and  an  accurate  3D  topographic  map  

of  the  weld  •  An  Excel  report  is  automa6cally  generated  highligh6ng  weld  abributes    

 

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Introducing  WeldAnalysis  soMware    

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WeldAnalysis  overview.    •  Suppor6ng  Auga  is  a  new  version  of  OMS’  

proprietary  WeldAnalysis  so_ware.      •  This  unique,  powerful  so_ware  processes  

data  from  weld  inspec6on  tools,  highligh6ng  specific  features.  This  allows  the  operator  to  quickly  analyse  and  pass  the  weld.  

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WeldAnalysis  interface.  

Page 21: Weldinspecon% inthe%firing%line% - Subsea UK · 2017. 2. 6. · Inline%weldinspec+on . Inspoolbasesandonpipelayingvessels Currently,weldinspeconservicesarerequiredtodetermineifa
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The  Auga  served  the  purpose  very  well  …  exactly  the  tool  required  …  it  will  be  recommended  for  future  work!    

Terry  Breaux,  Technology  Manager,  McDermo4  

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Clients.  We  have  worked  for  all  the  major  owners  operators,  installa+on  companies  and  welding  contractors.    Acergy  /  Acute  /  Allseas  /  Apache  /  BP  /  Bayou  /  Bredero  Shaw  /  Bugng  Ceona  /  Chevron  /  Cladtek  /  CRC  Evans  /  Doosan  /  EBK  /  Edgen  Murray  Ersai  /  ExxonMobil  /  FMC  /  Globestar  /  GMC  /  GRT  gaz  /  Heerema  /  Hess  HHI  /  Isleburn  /  Kencana  /  JP  Kenny  /  Larsen  Toubro  /  Marathon  Oil  Marubeni  Itochu  /  McDermob  /  Murphy  /  Nippon  Steel  /  Oceaneering  Petrobras  /  Petrology  /  Premier  Pipe  /  PTL  /  PTSC  /  Rasgas  /  Saipem  Sapura  Acergy  /  Serimax  /  Shell  /  Socotherm  /  Spitzer  /  Statoil  /  Subsea  7  Subsea  Structures  /  Sumitomo  /  Tata  Steel  /  Technip  /  Tecnicas  Reunidas  Total  /  TWI  /  V&M  /  Vision  Survey  /  Wellspun  /  Williams  /  Woodside  

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Benefits  of  OMS  weld  inspec+on.    

•  Useful  during  welding  trials  to  op6mize  welding  parameters  •  Check  root  weld  and  geometry  before  further  passes  •  Reduc6on  in  cut-­‐outs  •  Rapid  real-­‐6me  full  repor6ng  with  documenta6on  •  Fewer  defects  at  the  AUT  stage  •  Improve  overall  produc6vity  and  efficiency  •  OMS  supplies  CSWIP  qualified  operators  

 

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Thank  you  for  your  +me.  Please  don’t  hesitate  to  ask  further  ques6ons.  

email:  [email protected]                    visit:  www.omsmeasure.com    

OMS  UK  Unit  9,  M11  Business  Link,  Parsonage  Lane  Stansted,  Essex    CM24  8GF    United  Kingdom  +44  (0)  1279  656038  

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