BEGIN:VCALENDAR
PRODID:-//Columba Systems Ltd//NONSGML CPNG/SpringViewer/ICal Output/3.3-
 M3//EN
VERSION:2.0
CALSCALE:GREGORIAN
METHOD:PUBLISH
BEGIN:VEVENT
DTSTAMP:20191029T114853Z
DTSTART:20191105T180000Z
DTEND:20191105T200000Z
SUMMARY:The Manchester Metallurgical Society Seminar entitled ‘Internal I
 ntergranular Stress Corrosion Cracking of Shale Gas Flow lines’
UID:{http://www.columbasystems.com/customers/uom/gpp/eventid/}gnh-k0xw9xv
 f-63o4oc
DESCRIPTION:\nThe cause of leaks in Shale Gas flowlines was investigated.
  Cracks were found at girth welds joining API 5L X52 pipe. Cracks initia
 ted on the inside surface at the lower quadrant. \nThey were intergranul
 ar and multi-branched having features similar to amine stress corrosion 
 cracks in refineries and external carbonate cracking in gas transmission
  lines. Low flow \nrates permitted spent hydrogen sulphide scavenger com
 prising of monoethylamine (MEA) to accumulate at low points in the flowl
 ine. Reaction between high pH MEA and carbon dioxide \nfrom the process 
 gas formed a carbonate/bicarbonate solution which together with high res
 idual stresses from welding caused intergranular stress corrosion cracki
 ng (IGSCC) of the carbon steel.\n\nE. HEAVER obtained a B.Sc. (Hons) deg
 ree in metallurgy from Aston University followed by four years conductin
 g metallurgical failure analysis of mining equipment for RCM/ NCCM Minin
 g \nIndustry Technical Services\, Zambia. Joining SASOL\, he obtained a 
 Ph.D. from a study of CO-CO2-H2O stress corrosion cracking in tail and r
 eformed gas circuits. After working for 15 years \nin the down¬stream pe
 trochemical industry\, he moved to BHP Petroleum\, where he worked on up
 stream oil and gas materials performance for more than 20 years. He rece
 ntly founded \nReal Life Metallurgy\, materials engineering consultancy\
 , based in Manchester. \n\n\nFree buffet from 18:00 in the foyer of the 
 MSS Tower
STATUS:TENTATIVE
TRANSP:TRANSPARENT
CLASS:PUBLIC
LOCATION:C15\, MSS Tower\, Manchester
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END:VCALENDAR