4. 4
INTRODUCTION
University of Lagos, Akoka
• BSc. Chemical Engineering (in view)
Internship Duration (6 months)
• Start Date: July 2014
• End Date: January 2015
Post-Internship
• Final year of my undergraduate program
• Student President of NSChE Unilag Charter (2015)
University of Lagos, Akoka
5. 5
My EXPERIENCE
• Trainings
• Oil and Gas Industry Overview
• Basic Facilities Engineering Knowledge
• Field Trips
• Process Safety Design
• Equipment Design
• Process Simulation and Modelling
• Others
6. 6
OIL & GAS INDUSTRY
OVERVIEW
• Upstream, Mid-stream and Downstream
• Hydrocarbon formation
• Reservoir discovery
• Exploration
• Field development
• Production and Extension of Field life
• Transportation
• Storage
7. 7
BASIC FACLITIES
ENGINEERING KNOWLEDGE
• Material and Heat balance
• Thermodynamics
• Physical properties of Hydrocarbons
• Phase behaviour
• Vapour-Liquid Equilibrium
• Water-Hydrocarbon Phase behaviour
• Reading PFDs and P&IDs
9. 9
FIELD TRIPS
• Niger Dock Fabrication yard, Snake Island
• Chenotech Fabrication yard, Port Harcourt
At 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.
10. 10
At Chenotech, I witnessed the fabrication and assembly of foam
makers for fire water safety systems
• Threading of carbon steel pipe with both manual and machining
methods
• Coating of Fire water lines
• Machining of curved pipes
• We also saw completely fabricated Pig traps and Fire water lines
We were allowed into their store, where we saw some process
devices such as various valves, gaskets, flow meter, flanges, etc.
11. 11
Operational Facility Visit
On UBIT GH (Wellhead platform),
• Test Separator
• Manifold
• Well heads (Christmas trees)
• PSV
• Level gauge
• Bleed rings for Chemical injection/Corrosion inhibition
I was able to follow the production flow line on the platform’s
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.
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Operational Facility Visit
On UBIT GP, I saw the following
• Control room
• Production separators
• Gas Generators
• Compressors
• Pigging system
• Instrument hydraulic lines
• Flare header
• PCV
• PSV
• Flanges (spectacle blind, blind, weld neck)
• Level gauges
• Production manifold
Some observations
• No DCS in the control room
• No multiphase meter
15. 15
PROCESS SAFETY DESIGN
I studied API RP 14C, and performed Safety Analysis on
the following Process components
• Separators
• Pump
• Crude oil cooler
• Atmospheric tank
• Production flow line + Manifold
• Water injection line
• Compressor
16. 16
EQUIPMENT DESIGN
I 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)
19. 19
PROCESS SIMULATION
I familiarized myself with Aspen HYSYS, and carried out
various simulations of;
• Condensate Separation Systems
• Dew point plant
• Refrigeration systems
• Corrosion inhibition models
Also attempted modelling of an Existing Production facility
(Erha FPSO)
31. 31
OPEX Analysis
Cost of Hydrate Inhibitors
MeOH = $1.10/lb and 80% EG = $3.10/lb
For continuous operation for 5 years
Methanol cost of 1431lb = $69 million
80% Ethyl Glycol cost of 4671lb = $634 million
Conclusion: Best choice is Methanol, because 80% EG is 9 times
more expensive.
33. 33
Appreciations
Design Engineering Services Manager – Okechukwu Opara
Project Manger – Soji Adekogbe
Facilities Supervisor(DES) – Emem Abraham
Mentor/DES Process Advisor – Syamsul Bahri
Buddies – Folu Babatunde; Tomi Osipitan; David Okuonrobo
Martin Mweemba; David Coym; Jos Ronde; Pat Maddigan and the entire DES team
ENP2 Lead Design Engineer – Helen Nabena
Others – Michael Ebiye, Perry Jas-Ikpeme, Dean Adatang, Edwin Okegbe,
