April 2018 Meeting Announcement
Technical Dinner Meeting
April 11th, 2018
“Welding on In-Service Pipelines”
Guest Speaker: Mark Bell, PE
Social Period: 6:00 – 6:30 p.m.
Buffet Dinner: 6:30 – 7:30 p.m.
Presentation: 7:30 – 9:00 p.m.
Place:
Chevy’s Fresh-Mex Restaurant
1890 Powell Street
Emeryville, CA 94608
Click here for a map to Chevy’s FROM I-80
Cost:
$25 per AWS member or guest
$15 per AWS member retiree or student AWS member
$30 per nonmember
Reservations required by Monday, April 9th
Make and pay for reservations at our PayPal link
Reservations Closed
Chevy’s Fajita Buffet includes Sizzling Steak Fajitas and Famous Chicken Fajitas
Subject: “Hot Tapping” of a +700 psi natural gas pipeline to API 1104, Appendix B.
(API 2201, Procedures for Welding or Hot Tapping on Equipment in Service).
This presentation will review how API 1104 and Appendix B allows for the successful addition of a branch connection to a natural gas pipeline without removing the pipeline from service. Applied welding metallurgy, nondestructive testing, required PQR tests, and lessons learned will be presented. The use of buttering passes and Carbon Equivalent calculations made this a safe, successful project. In light of recent concerns over pipeline safety this branch connection had a lot of visibility and concern.
There will a brief discussion of non-Code weld repairs and failures that are current or notable examples.
Mark Bell, PE, is a graduate of Cal Poly in Metallurgical Engineering. He has been a CWI with endorsements in D1.1, D1.5 and API 1104. His consulting business is in failure analysis, welding, and corrosion. He served on the Board of Directors for the AWS from 1992 to 2004. He has presented the 5 day ASM classes on Failure Analysis, Stainless Steel. Metallurgy, Corrosion and Welding at Metals Park and worldwide for ASM. Mark was Sacramento Valley Section Chairman in 1993-94 and 22nd District Director from 1997 until 2003. He is a longtime friend of the San Francisco Section.