My Internship Experience Summary

  • View
    168

  • Download
    3

Embed Size (px)

Text of My Internship Experience Summary

My Internship Experience Summary

My Internship Experience SummaryNigeria Projects Organisation Design Engineering ServicesExxonMobil NigeriaGbolahan DadaJanuary 2015#1OUTLINESafety MomentIntroductionWork ExperienceTechnical presentationQuestionsConclusionGeneral feedback#

#INTRODUCTIONUniversity of Lagos, AkokaBSc. Chemical Engineering (in view)Internship Duration (6 months)Start Date: July 2014End Date: January 2015Post-InternshipFinal year of my undergraduate programStudent President of NSChE Unilag Charter (2015)

University of Lagos, Akoka#My EXPERIENCETrainingsOil and Gas Industry OverviewBasic Facilities Engineering KnowledgeField TripsProcess Safety DesignEquipment DesignProcess Simulation and ModellingOthers

#OIL & GAS INDUSTRY OVERVIEWUpstream, Mid-stream and DownstreamHydrocarbon formationReservoir discoveryExplorationField developmentProduction and Extension of Field lifeTransportationStorage

#BASIC FACLITIES ENGINEERING KNOWLEDGEMaterial and Heat balanceThermodynamicsPhysical properties of HydrocarbonsPhase behaviourVapour-Liquid EquilibriumWater-Hydrocarbon Phase behaviourReading PFDs and P&IDs #Project EngagementsErha Calcium Nitrate Injection ProjectErha North Phase II#FIELD TRIPSNiger Dock Fabrication yard, Snake IslandChenotech Fabrication yard, Port HarcourtAt Niger Dock, I saw the fabrication of several piping members and pressure vessels, welding and machining of other process equipment parts. I also witnessed some Quality tests being carried out hydrotest, and radiography.#At Chenotech, I witnessed the fabrication and assembly of foam makers for fire water safety systemsThreading of carbon steel pipe with both manual and machining methodsCoating of Fire water linesMachining of curved pipesWe also saw completely fabricated Pig traps and Fire water linesWe were allowed into their store, where we saw some process devices such as various valves, gaskets, flow meter, flanges, etc.

#Operational Facility VisitOn UBIT GH (Wellhead platform),Test SeparatorManifoldWell heads (Christmas trees)PSVLevel gaugeBleed rings for Chemical injection/Corrosion inhibition

I was able to follow the production flow line on the platforms main deck, from the Christmas tree (receives subsea pipelines bearing produced crude) to the Manifold (combines the crude being produced from the 9 Wellheads) to the Test separator (that separates the crude into two phases- gas and liquid), and then both the gas line and the liquid line from the test separator continue to the Main Production platform (UBIT PP) as pipelines.

#

Christmas treesWellhead conductorsPiping around Test Separator#Operational Facility VisitOn UBIT GP, I saw the followingControl roomProduction separatorsGas GeneratorsCompressorsPigging systemInstrument hydraulic linesFlare headerPCVPSVFlanges (spectacle blind, blind, weld neck)Level gaugesProduction manifoldSome observationsNo DCS in the control roomNo multiphase meter#

#PROCESS SAFETY DESIGNI studied API RP 14C, and performed Safety Analysis on the following Process components SeparatorsPumpCrude oil coolerAtmospheric tankProduction flow line + ManifoldWater injection lineCompressor

#EQUIPMENT DESIGNI studied API RP 14E and API 12J, and carried out Design calculations for the following using MS Excel:A pump (ECNIP)A separator (ENP2)Water injection line (ENP2)Gas lift line (ENP2)Methanol injection line (ENP2)Production flow line (ENP2)

#

#

#PROCESS SIMULATIONI familiarized myself with Aspen HYSYS, and carried out various simulations of;Condensate Separation SystemsDew point plantRefrigeration systemsCorrosion inhibition modelsAlso attempted modelling of an Existing Production facility (Erha FPSO)

#OGPT training example

#

#

#

#

#

#

#

#

#

#

#OPEX AnalysisCost of Hydrate InhibitorsMeOH = $1.10/lb and 80% EG = $3.10/lbFor continuous operation for 5 yearsMethanol cost of 1431lb = $69 million80% Ethyl Glycol cost of 4671lb = $634 million

Conclusion: Best choice is Methanol, because 80% EG is 9 times more expensive.#Questions?#AppreciationsDesign Engineering Services Manager Okechukwu OparaProject Manger Soji AdekogbeFacilities Supervisor(DES) Emem AbrahamMentor/DES Process Advisor Syamsul BahriBuddies Folu Babatunde; Tomi Osipitan; David OkuonroboMartin Mweemba; David Coym; Jos Ronde; Pat Maddigan and the entire DES teamENP2 Lead Design Engineer Helen Nabena

Others Michael Ebiye, Perry Jas-Ikpeme, Dean Adatang, Edwin Okegbe, #Thank you#GeneralQUESTIONS & FEEDBACK#