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API 16A 3 rd Edition Summer Conference Committee Meeting 24-June-2013

API 16A 3 rd Edition Summer Conference Committee Meeting 24-June-2013. API 16A Chairman: John Busby Co-Chair: Jim McCabe. API 16A Status. 3 rd Edition / June 2004 / Effective Date: December 1, 2004 Reaffirmed: August 2010 Present Status: Under Revision

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API 16A 3 rd Edition Summer Conference Committee Meeting 24-June-2013

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  1. API 16A 3rd EditionSummer Conference Committee Meeting24-June-2013 API 16A Chairman: John Busby Co-Chair: Jim McCabe

  2. API 16A Status • 3rd Edition / June 2004 / Effective Date: December 1, 2004 • Reaffirmed: August 2010 • Present Status: Under Revision • Ballot Target Date: By next Conference 2013

  3. New Elements for 4th Edition • Established minimum design standards for blow out preventers • Updated temperature chart for blow out preventers (see next slide) • Defined verbiage on “HAZ” zone • Issue: NACE states 2mm / 6A states 2mm, 16A states 2mm but drawing shows 1.5mm • Action: change drawing to reflect 2mm. Consistent with API 6A • Subsea Riser gas handling systems, BOP or Diverter? Should be in RP-64 • Establish PSL-levels for new manufactured Drill Through Equipment. • Dropped, 16A functions based on a PSL-3 level due to the critical nature of this equipment. Decision was made to not adapt PSL levels.

  4. New Temperature Ratings Table 4 – Temperature ratings of non-metallic sealing materials

  5. New Elements for 4th Edition • Table 26, removed 25k and 30k ratings. • Bernell of ring grooves after make up with gasket in place. • Discussed, Decided to adapt API 6A inspection criteria. • Align with ST-53 on maximum operating pressure to be used in shearing

  6. New/Ongoing Discussion Topics • Develop Minimum Design Criteria for BOPs to Seal and Hold Gas • Currently being discussed in API 17G • Low Pressure and High Pressure Gas testing for qualification purposes • Formed work group to explore testing protocal. • Establish qualification for BOP to close on flow • Establish normal operating system pressure based on well bore pressure. (i.e. what pressure should be required to close a ram when there is wellbore pressure trapped in the bore) • Should API16A only cover “Drilling and Completion Applications” , or should it include Workover / Intervention, Snubbing, etc.

  7. New/Ongoing Discussion Topics • Set maximum bolting hardness of 35Rc for subsea applications (ref: connector bolting issue) • API 6A, section 10.3.3.2 • API 17A, section 6.4 • API 16F, section 6.2.1

  8. New/Ongoing Discussion Topics • PSIA versus PSIG and PSID? • Work group formed to collaborate with API 17D & 6A on this issue. • Fluid compatibility for elastomers • Already addressed in ST-53 • Qualifying high temp elastomers for steam • Parked this issue for now • Hub face separation on subsea drilling connectors • Look at 17G and gain alignment • Product Marking – 5 year

  9. New/Ongoing Discussion Topics • Shearing offset pipe. Verbiage is in the draft document. • Better understanding of the minimum operating pressure required to maintain seal on rams in the presence of wellbore pressure. • Should this be included in the equipment data package? • Review BOP design criteria for deepwater applications • Effects of negative pressure (hydrostatic from water depth) • Bending and tension loads on BOP’s and flanges

  10. Minimum BOP Design Criteria

  11. Agenda • Safety Moment • Introductions • Status • Review New Elements for 4th Edition • Review New/Ongoing Discussion Topics

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