XOM Work for LinkedIn
- 1. ExxonMobil Chemical, High Pressure Polyethylene, Baton Rouge, LA Full Time Employee: Machinery/Rotating Equipment Engineer Jun. 2014 – Present Flawless Safety Performance: Zero recordable loses due to active participation and promotion of company’s safety and loss prevention programs (e.g. LPSAs, LPOs, PSSRs, NLIs, etc.) Eliminated safety concern presented by area safety team by designing a custom fastener and verifying design via SolidWorks FEA and by-hand beam stress analysis calculations Eliminated lifting hazard by identifying and modifying a hydraulic cylinder lift to support, lower, and raise large steel filter housings during filter change operations Mitigated risk of autoclave decompositions (an environmental recordable event) by redesigning foot bearing retainer ring with a 600% smaller stagnation zone Cryogenic Centrifugal Sundyne Pump Reliability Resolutions: Supervised teardowns/inspections/rebuilds to resolve abnormal split line leaks and seal reliability Leverage knowledge from multiple sources for RCFA by soliciting internal and external resources Constructed 3D models to perform FEA analyses and identify/correct LTA component designs Prevented margin loss of 600k$/day and was presented with Technical and Engineering Award Cooling Oil Pump and System Pressure Control Upgrades: Generated hydraulic model to design a spillback loop to maintain optimal header pressure for reducing cooling oil contamination and improving hypercompressor seal and packing reliability Specified new pump/driver/base to mitigate single point of failure for multiple production lines Captured a margin risk and reliability savings of 311k$/yr with a 12.4 B:C ratio Hypercompressor Plunger Lubricator Double Block and Bleed Assembly Installation: Collaborated with Autoclave Engineers to design first-of-kind DBB assembly for operations near 50kpsi to enable safe repairs of failed pumps without shutting down production lines Engineered bracket in SolidWorks to support DBB assemblies and associated high pressure tubing Margin improvements: A-D lines - 107k$/yr with 125% DCF; E&F lines - 163k$/yr with 196% DCF Vertical Compressor Repair and Rod Load Reversal Corrections Discovered significant damage to crosshead bore/pin/bushing consistent with calculations that showed less than adequate rod load reversal during startup Modified startup procedure to guarantee min rod load reversal during startup Collaborated with OEM to engineer a replacement oversized pin/bushing that saved 1575k$ in margin with a 131 B:C ratio (saved 63 days vs new part delivery) Hypercompressor Health Summary Forms Developed and stewarded monthly one-pagers of critical machine info for Major Machinery Improvement Team, Reliability Leadership Team, and Plant Management Team Recognized as a valuable tool by site management for major machinery planning and ongoing risk assessment analysis
- 2. Cracked Crankshaft Fracture Mechanics and Ultrasonic Monitoring Calculated alternating bending torsional fatigue loads and assisted with fracture mechanics analysis to determine estimated min and max time before failure Established/stewarded crack propagation monitoring via Phased Array examinations Turnaround Machinery Supervision Supervised major machinery (i.e. hypercompressors, refrigeration compressors, gearboxes, motors, etc.) overhauls and installations during turnarounds on both day and night shifts Supported and documented crucial decisions and QC steps (e.g. machine alignments, component clearances, plan deviations, etc.) Performed bolted joint analyses to provide mechanics with torque settings for sufficient clamping loads without compromising the integrity of the bolts, the internal threads, or the external threads Hypercompressor Plunger Lubricant Transition Networked with global parties within ExxonMobil to capture significant reliability gains achieved by transitioning to a different hypercompressor plunger lube at one of the European HPPE plants Developed trial and permanent transition plans by working with Lubes and Operations specialists Reduced high exposure work by 97hr/yr and captured 597k$/yr due to reduced cost of lubricant, improved water separation, and increased hypercompressor cylinder life Development Accomplishments Instructed 5 sessions of machinery basics training courses for Maintenance and Operations New Hire classes of ~25 each year (2x total) Lead Rotary Valve Task Force to prioritized bad actors, consult SMEs, determine root causes of reliability issues, and present recommended path forward to management Gained exposure Basic KT RCFA by working with a multidiscipline team to troubleshoot hypercompressor plunger temperature instability and trips Augmented machinery knowledge by attending Turbomachinery Performance training, Flowserve Pump and Mechanical Seal Principles training, ExxonMobil Technical Boot Camp training, ExxonMobil Informal Incident Investigation training, as well as by frequently troubleshooting machinery failures and performing root cause failure analyses Enhanced ability to appropriately prepare for meetings (i.e. compiling and communicating the details of the event, history of the machine, previous occurrences of similar events, suggested resolutions, recommended path(s) forward, and risks associated with each option) Increased utilization of engineering software (i.e. MathCAD, SolidWorks, System 1, CompCalc, etc.) as tools to add value and technical soundness to work items Heightened awareness of company’s Global, Design, and Best Practices, as well as with API and ASME machinery standards through use as references for various upgrades/improvement projects