Annual report TC67/SC4/WG3Wellhead and Xmass tree

ISO10423 and API 6AWG Scope:standardisation of wellhead

and xmass trees plus valvesWG convenor :Ries Langereis WG secretary :Alfred Kruyer

WG 3 :ISO 10423

• Work programme :worked on and issued the 4th edition of ISO 10423 issue early 2010

• Liaise with API SC6,ensure consensus between API 6A-20th vs. and the planned 5th version of ISO 10423

• Liaise with AWHEM to resolve their comments and contributions for vs.5.

WG 3:ISO 10423

• New work group formed during 2006• Balanced participation between

manufacturers and users:Shell,BP,Total,N.Hydro,Vetco,FMC,Mokveld ,Cameron

• During 2009 and 2010 many (in)formal meetings held,location an issue re participation,particularly for Americans

4th version ISO 10423 issues

• API 6A 19th vs has implemented NACE ISO 15156;vs 2004

• New project group formed under Thierry Cassagne Total ,Derek Milliams Shell of the ISO 15156 maintenance panel involved .

• The brief was :can API 6A 19th vs re NACE -2004 implementation be incorporated in vs.4 ??

• Main conclusion :No show stoppers• ISO 10423-4 will than require more extensive marking re

Temp.,Cl,pH and H2S limitations• ASTM A 453,grade 660 is non acceptable for H2S, in

particular for exposed bolts.

4th version ISO 10423 issues• Repair and Re-manufact.O.E.M. is incorporated into the ISO

standard ,not in API 6A due to legal reasons• Macondo have convinced MMI,API SC6 that a repair standard is

now required.• Shell,BP,Statoil have reviewed current ISO standard and because

of an OEM clause have concluded it is superior to API and other proposals .

• API SC6 had formed active Wg on the repair clause via Exxon Sterling Lewis and Gary Devlin-Cameron.

• New version proposed using OPD:original product definition.This proposal has been ballotted within API and approved –still valid??

• ISO WG3 Have informally ballotted large users and they accepted viz.OEM –OPD to ensure unity-not really happy.

• API SC6 been informed that our WG3 accepts the new wording of OPD-version

• Current DIS contains OEM,however vs.4 now includes OPD

4th Version ISO 10423 issues• Castings and forgings issue,workgroup formed under Alfred Kruyer• Background :API allows always castings,ISO instructs wrought

products only used for PSL3,4.We must have consensus between ISO and API

• Report presented at Gouda dec.2006,presented in Houston at API Sc6 jan. 2007

• API in agreement with findings and now accepts ISO and a ballot would be held within SC6 ,this was done during back-adapt vs.4

• ISO might reconsider current position on castings vs. forgings • However will only react upon ballot results from SC6.• NACE ,ISO 15156 and ISO 13628 dealing with forgings only as it

uses ISO 10423 as base document• New workgroup formed API/ISO.under Sterling Lewis/Maarten

Kuipers.• Separate presentation of findings next week during SC6

4th version ISO 10423 issues

• Another solution is to leave as is and await API SC20 to publish a RP for castings

• Another solution is :wrought products shall be used ,however user and manufacturer may consider castings if …

• Last year 26th june a WG3 meeting took place preceding the API meeting;a final position made forgings a requirement for PSL2 plus.

• Another API WG formed-awaiting results

4th version ISO 10423 other issues

• AWHEMs wish list had been made and forwarded to Shell secretariat,now completely implemented

• Normative references have been updated and are part of the new Vs.4

• Gas testing has been upgraded and approved within SC6,has been implemented in Vs.4

• Verification vs.validation now implemented into Vs.4.

Other issues

• 4th edition revision has been manageable,went straight into FDIS

• ISO 13628-4 subsea wellheads sister document.DIS ready and studied ,different tolerances-sorted.

• Different hydrostatic test 5.4.6.2.1• Contains a paint spec.

Pozgrip proposal

• Email received from Ben v Bilderbeek on perceived inadequacy of API annular seal tests,one versus 8 for tubing

• Wellheads needed to be as good as tubing• No external loads in API tests• API communication has made clear that

standards are not for technical licensing

Pozgrip proposal /observations

• Annular seals are usually secondary• Proposal only for metal/metal seals

however 80% market is elastomers• If there is such a big problem why have

the major operators not come forward towards API/ISO??

• API Sc6 will further communicate

Macondo Repercussions•Informal meeting held in Shell

and Nogepa;concluding ISO10423 is in good order,only question was

on OEM vs OPD•Is there a need for uniformity with

other standards?•Participated on numerous

excellent initiatives e.g API 95

ISO 10423 wg 3-next meetings

• Preceeding SC6 ,there will not be a WG meeting

• Thursday 30th.june API SC6 meeting• Next Wg 3 meeting will depend on current

events and ballots.

Post Macondo further

• Meeting with dutch MMS ,together dealing with all N Sea regulators

• Return of OEM mentioned,explained OPD• Verification-externally returning• Need for always annular pressure

monitoring• Maintenance period to be prescriptive• External examiners now being used