Brochure
26
Corrosion & Erosion
• Crude Unit Overhead heater tubes and lower alloy
convection crossover piping when higher TAN op-
portunity crudes are processed
• Periodic piping TML’s and spot UT may be not cap-
ture events that could cause signicant wall loss of
piping
• Inaccessible locations generally do not allow for
periodic monitoring
• Rightrax permanently mounted sensors provide
recordable, remotely accessible , high quality
documentation of wall condition
• See Pages 15 - 18 for general description
• Rapidly assess damage mechanism for expedited
corrective actions
• Instant RVI diagnosis with experiences can pro-
duce immediate repair/plug/bring in additional
NDT technique decisions
• Use of RVI with experienced plant personnel can
greatly reduce outage duration
• Inspection provides recordable, indexed, high qual-
ity documentation for review
• See Pages 7-8 for general description
• Phased Array capability in readily portable equip-
ment
• Assess damage extent and improved sizing from
eld personnel
• Improved inspection productivity in a sharable
format
• Obtain better information for RBI and FFS Evalua-
tions
• See Pages 9 - 10 for general description
Naphthenic Acid Corrosion
Rightrax Installed Sensor (UT)
Heat Exchanger Tubing Failures
Remote Visual Inspection (RVI)
Corrosion Damage Sizing
Ultrasonic Testing (Phasor CV/DM)
Crude Unit Convection Cross-Over’s may suer severe cor-
rosion due to crude slate changes to higher TAN Crudes
RVI with experienced personnel can provide rapid damage
mode identication
Phasor CV/DM has Dual Element Phased Array capability
for accurate, rapid damage sizing