1. 1 API 16A 3 rd Edition Winter Conference Jan - 2014 API 16A Chairman: John Busby Co-Chair: Jim McCabe

2. 1220 L Street, NW Washington, DC 20005-4070 www.api.org2 API 16A Status 3 rd Edition / June 2004 / Effective Date: December 1, 2004 Reaffirmed: August 2010 Present Status: Under 4 th Revision Target date for comments Feb-2014

3. 1220 L Street, NW Washington, DC 20005-4070 www.api.org3 4 th Edition Topics – API 16A Updated Temp chart includes Low/Operating/Extreme levels Defined HAZ zone 2mm (consistent w/API 6A and NACE) Established Minimum Design Criteria for 16A equipment

4. 1220 L Street, NW Washington, DC 20005-4070 www.api.org4 4 th Edition Topics – API 16A Removed 25k & 30k classes (ref 17TR8) We have 16A representation in 17TR8 (WG formed) Closure Bolting Hardness per API 20E BSL-2 / API 6A (WG formed) Gas handling systems are out of scope for 16A, should be in RP-64

5. 1220 L Street, NW Washington, DC 20005-4070 www.api.org5 4 th Edition Topics – API 16A Sealing characteristics on annulars and ram preventers. (WG formed) Updated shearing test to include off- center test. Product history files require additional data, (WG formed)

6. 4 th Edition Topics – API 16A Discussed brinnelling of ring groves during shell test. Ring groove dimensional measurements should be taken as finished machined data before shell test Document clean up. (ISO replaced) Discussed establishing PSL levels, agreed 16A criteria already meets PSL-3 criteria. Dropped further consideration.

7. 1220 L Street, NW Washington, DC 20005-4070 www.api.org7 4 th Edition Work Groups – API 16A Five Work Groups Formed Gas testing qualification Sealing characteristics PSI-A v/s PSI-G Closure bolting Product history records

8. New/Ongoing Discussion Topics  More robust shearing test, i.e. off-center in compression Designate surface & subsea equipment Steam temp rating Closing on flow 25k & 30k ratings Define hub face separation for drilling connectors 5 year product marking requirements 6A-F flange limits Should 16A include workover operations in scope

9. New Temperature Ratings Lower LimitOperating Temperature LimitExtreme Temperature Limit Code Temperature Code Temperature Code Temperature °F(°C)°F(°C)°F(°C) A-15-26A15066A18082 B0-18B18082B20093 C10-12C21099C220104 D20-7D240116D250121 E30E270132E300149 F404F300149F350177 GOther G G EXAMPLE Material “FDE” has a lower temperature rating of 40°F, a continuous elevated temperature rating of 240°F, and an extreme temperature limit of 300°F. Table 4 – Temperature ratings of non-metallic sealing materials

10. Minimum BOP Design Criteria Test Ram BOP Annular BOP Hydraulic connectors Fixed bore a Variable boreBlind a Shear Sealing characteristicsReportable N/A Fatigue52 cycles 28 @ minimum dia, 28 at Max. Dai 52 cycles Stripping 3000 ft and 100 tool joints ReportableN/A 3000 ft and 100 tool joints ShearN/A See Table 18 or PO N/A Hang-off 450k< 5inch 600K >5 inch ReportableN/A Packer access200 cycles with 10 pressure cycles50 cycles Ram locking device11 Successful Lock and sealN/A  Locking mechanism  N/A  P2, S2  Sealing mechanism  P1, S3 Temperature verification Low temp 3 cycles, HT Fatigue 200 closures 10 pressure cycles, HT Emergency 1 Hour hold time N/A

11. 1220 L Street, NW Washington, DC 20005-4070 www.api.org11 John Busby - Bio John Busby SSWI Advisor Chevron Global Upstream Capability Studied Business Law at Nicholls State University. Joined Cameron Iron Works in 1981 and spent the next 25 years in the BOP and Wellhead manufacturers side of the business in various capacities from field service through country manager. Joined Chevron in 2006 as a Drill Site Manager in international shelf and deepwater Drilling and Completion operations. Presently in Chevron’s Global Upstream Capability Group in Houston as a Subsea Well Intervention Advisor focused on well control equipment for surface and subsea operations.