Industrial Training Technical Report

Managing Director


Executive director Operations


Executive Director services


Manager Power Plant & utilities


Manager production planing & quality control


Manager Fire Safety & Env.


Manager Maintenance


Manager Eng'g & Tech Services Division


Manager Production


Dep. Manager Oil Movement


Manager Human Resources


Manager Administration


Manager Finance & Accounting


Manager Manpower Development


Deputy Manager Security


supt.LAB oil movt.














































































































46





CHAPTER ONE
INTRODUCTION
STUDENT INDUSTRIAL WORK EXPERIENCE SCHEME (SIWES)
The student industrial work experience scheme was introduced to give students the practical experience of various industrial firms, companies and institutions in their area of studies for a better understanding and application of theoretical knowledge acquired in school. The student industrial work experience is a skill development training program designed to bridge the gap between theory and practical. The minimum duration for the program is usually 24 weeks. The program is coordinated by the industrial Training Fund (ITF), National University Commission (NUC) and the National Board for Technical Education (NBTE).

1.2 Historical Background of Student Industrial Work Experience Scheme (SIWES)
A program established in the year 1973 by the EDUCATIONAL TRUST FUND (ETF) in order to equip students of tertiary institutions (universities, polytechnics, colleges of education, etc.)
The program came into existence as an effort meant to provide training skills to the undergraduates of the various Nigerian Universities as a basic minimum academic standard to bridge the gap between the theoretical aspect and practical experience.
1.3 Aim and Objectives of SIWES
The students industrial work scheme was meant to achieve the following:
Prepare students to have a practical knowledge and experience of what is being taught in school.
To provide an avenue for students in the higher institution to acquire skills and experience in their area of discipline especially in engineering and other related fields.

Prepare students for the work challenges after graduation
Students are exposed to various working conditions.
In order to improve productivity, whenever the need arises.
The program exposes student to different methods and techniques in handling tools and equipment that may not be available in their various institutions.

1.4 Role of The Students During The Programme
Students must comply with all the rules and regulations of the organization
Students must be regular and punctual at their places of attachment.
Students must exhibit high level of diligence and honesty.
Students must display good working conditions with others.
Students must be with their log books for proper recording of various activities undertaken during training.

1.5 Kaduna Refining & Petrochemical Company (KRPC)
Kaduna Refining and Petrochemical Company, KRPC, is a subsidiary of the Nigerian National Petroleum Company, NNPC. It was established to efficiently and profitably process crude oil into refined petroleum products. KRPC was commissioned in 1980 as NNPC Refinery Kaduna. Its initial capacity was 100,000 Barrels per Stream Day [BPSD]. As the third Refinery in the country, it was established to cope with the growing demand for petroleum products, especially in the Northern part of the country.
The Refinery was designed to process both Nigerian and imported crude oils into fuels and lubes products. In December 1985, the Fuels section of the Refinery was successfully debottle-necked from 50,000 BPSD to 60,000 BPSD, bringing the total refinery installed capacity to 110,000 BPSD. In March 1988, the 30,000 MT per annum, Linear Alkyl Benzene (LAB) Petrochemical Plant was commissioned. The Petrochemical Plant, being a downstream of plant of the Refinery, derives its entire raw materials including utility supplies from the Refinery.
For there to be effective management in the company, there is a hierarchal order in which the instructions and responsibilities from those to those to whom they are responsible to and vice versa. A general organization profile is shown here.


1.6 COMPANY ORGANOGRAM







The refinery was built by the CHIYODA CHEMICAL ENGINEERING AND CONSTRUCTION COMPANY, JAPAN. Commissioning of the refinery commenced in December, 1979 with the power plant and utilities section. The commissioning of the Production Units started in April, 1980.The refinery was designed to
Process 100,000 barrels of crude oil per day, and is divided into two separate sections,(each of which process 50,000 barrels per day):
Fuels section
Lubes section

The Fuels section processes Nigerian crude oils while the Lubes section process imported crude. Middle East Crude Oils (Kuwait, Light Arabian) and Venezuela.
The crude oil is received into storage tanks in Kaduna. There are 8 crude oil storage tanks each with a capacity of about 59,000m3,4 of those store the Nigerian crude and 4 for the Imported crude. The crude oil is sent to the Process Plant for processing and products are sent back to the oil movement tanks. There are two types of tanks in the Oil movement farm;
Intermediate product tanks and
finished product tanks




Storage Tanks.

LAB plant produces Linear Alkyl Benzene, which is a basic raw material for the production of powder and liquid biodegradable detergent. KRPC also manufactures tins and drums primarily for the tinning of Kerosene and packaging of Asphalt.



1.6.1 KRPC FACILITIES
Three process plants
Power plant and utilities
Crude oil and products handling facility (oil movement)
Fire and safety facility
Tins and drums

1.6.2 Auxiliary Facilities
Steam Reformer Unit: Converts natural gas into hydrogen for the hydrotreaters and/or the hydrocracker.
Sour Water Stripper Unit: Uses steam to remove hydrogen sulphide gas from various wastewater streams for subsequent conversion into end-product sulphur in the Claus unit.
Utility units such as cooling tower, for furnishing circulating cooling water, steam generators, instrument air systems for pneumatically operated control valves and an electrical substation.
Wastewater collection and treating systems consisting of API separators, Dissolved Air Floatation (DAF) units and some type of further treatment (such as activated sludge biotreater) to make the wastewaters suitable for reuse or for disposal.
Liquefied Petroleum Gas (LPG) storage vessels for propane and similar gaseous fuels at a pressure sufficient to maintain them in liquid form. These are usually spherical vessels or bullets (horizontal vessels with rounded ends).



1.7 KRPC BUSINESS
KRPC was established to efficiently and profitably process crude oil into high value petroleum and petrochemical products and also to manufacture tins and drums.

1.8 KRPC OBJECTIVE
The objectives of KRPC are to optimize the capacities of the existing plants, reduce the plants operating costs, develop new products from existing facilities for use in the downstream industries and extend refining services to the West African sub-region. Like other subsidiaries of NNPC, KRPC is owned 100% by NNPC.

1.9 MISSION STATEMENT
KRPC is in the business of refining of refining petroleum and petrochemical products and also manufacture packaging products efficiently.











CHAPTER TWO
EXPERIENCE GAINED
During my industrial attachment, I worked in the offsite maintenance/planning department.
2.0 INDUSTRIAL SAFETY AND PRECAUTIONS
Before any personnel or attaché is given access or posted to any department he or she must undergo safety induction training and upon completion will be given their safety wears.
PROTECTIVE CLOTHING AND EQUIPMENT
Protective apparels and equipment provided for the employees by the employers should be adequately used. Such protective wears are classified under the following headings:
EYES: They have to be protected from chemical splashes, dusts, projectiles, gases and vapours. To avoid these, spectacles, goggles or face screens should be worn.
HANDS AND ARMS: These should be protected from corrosive chemicals, electric shocks, skin irritation, abrasion and cuts. Also to avoid this, gloves and gauntlets should be worn.
FEET AND LEGS: These should be protected from wet surfaces, metal or chemical splashes, abrasion and electrostatic build-ups. To this effect, safety boots must be worn regularly.
RESPIRATORY SYSTEM: The respiratory system must be protected against toxic gases, dust, Vapour, etc. Therefore to avoid these, a respirator must be worn always in the industry premises.

REFINERY OFFSITE FACILITIES
2.0.1 OFFSITE FACILITIES
The individual processing units described in the previous chapter are part of the process-unit side of a refinery complex. They are usually considered the most important features, but the functioning of the off-site facilities are often as critical as the process units themselves. Off-sites consist of tankage, flare systems, utilities, and environmental treatment units.

The offsite general facilities a Kaduna Refinery comprise all oil storage and handling, waste disposal and services installations outside the process and utility facilities.
Functionally, the offsite and general facilities serve the following functions:
Storage, transfer, blending and shipping of crude oils, intermediate oils, semi-finished and finished products.
Collection and disposal of liquid and gaseous waste.
Storage of supplies and spare parts, housing of maintenance equipment and administrative, control and communicative offices.
Manufacture of product maintenance.


2.1 TANKAGE SYSTEM
This is the system required for storing crude oils, intermediate oils, component oils, and product oils, and also related ancillary systems and interconnection pipings at Kaduna Refinery mainly from the standpoint of their functions.
The tankage system consists of the following subsystems with necessary piping connections:
Crude oil tankage (Unit No. 50)
Intermediate oil tankage (Unit No. 51)
Component oil tankage (Unit No. 51)
Product oil tankage (Unit No. 52)
Ancillary systems (Unit No. 50)

2.1.2 CRUDE OIL TANKAGE
The sizing of the crude oil tankage is based on providing storage for 30 days normal feed to the crude distillation units (ODU-1 and CDU-2).
Two kinds of indigenous crude oils, i.e. UQCC and Gulf Escravos crude oils, and one kind of imported crude oil, namely Kuwait, Light Arabian or Lagomar, will be delivered to the refinery by one pipeline coming from the coast, for which four floating roof tanks each for the indigenous and imported crude oils are provided.
Although these two groups of tanks will normally store the respective crude oils, piping connections to attain interchangeability among these tanks are provided.
2.1.3 INTERMEDIATE OIL TANKAGE
lube/wax Intermediate Tanks
Extract Tanks
Asphalt Tanks

The sizing of tankage for intermediate oils before processing is based on providing storage needed to meet the following requirements:
To Allow Grouped Maintenance of Process Units to assess the tankage requirements to allow grouped maintenance of process units in order to reduce the peak-time maintenance.
2. To Allow Catalyst Regeneration and Re-startup of the Catalytic Reforming unit.
3. To Provide Storage for Balancing Feed Rate.
4. To Equalize Feed Composition.
5. To Allow Catalyst Replacement and Decoking.

2.2 TYPES OF STORAGE TANKS
The storage tanks located in the tank farm of the refineries and depots are of five types;
Fixed roof
Floating roof
Spherical
Cylindrical
2.2.1 FIXED ROOF TANKS.
The fixed roof tanks are used to store products that belong to category C. the tanks have cone-shape roof that are stationary. They are the simplest types of tanks in terms of construction. The shell is made up of metal sheets welded together in courses. They are called "ATMOSPHERIC TANK" because the pressure inside the tank is always equal to the pressure outside. These tanks are not suitable for resisting extra pressure or vacuum. The tanks have openings installed on top of the roof called vents through which excess pressure generated when filling the tanks leaves the tanks vents and when emptying is balanced up by air from the atmosphere.

ACCESSORIES:
Fixed roof tanks are normally provided with the following accessories:
Hatch for ;measuring and withdrawing samples
Breathing valve
Level indicator
Product inlet and outlet nozzles
Bottom drain
Man hole



2.2.2 FLOATING ROOF TANK

The floating roof tanks are used to store products which belong to categories A and B. these tanks have their roof resting directly on the product and float on top of it. Part of the provision of independent air chambers called pontoons. These pontoons make the overall specific gravity of the roof less than that of the product. The roof circumference is cushioned or held by rubber stripping placed on the internal surface called the pantographic seal. These seal can be single or double in construction (primary and secondary seals). This seal reduce product losses through evaporation and also prevent water ingress into tank. The roof with double seal ensures less loss of product through evaporation. In some cases these seals are made of rubber tubing filled with kerosene.
The roof has a certain number of legs, which serve as support when necessary especially during tank maintenance. These legs are adjustable depending on whether the roof should be in operational or maintenance position in order to allow for more pump able stock.
Increase in the tank temperature vaporize the liquid causing pressure build-up and therefore product discharge into the atmosphere, temperature decrease causes the condensation and therefore drop in tank pressure causing air from the atmosphere to go into the tank to maintain pressure. The vaporization/condensation action with the vapour/product in the empty space that can cause explosion in the tank. Breather valves are installed on the roofs to reduce the amount of venting and absorption of air into the tank. Apart from breathing valves reducing potential danger of mixing hydrocarbon vapour with air, they also reduce looses due to evaporation. The breather valve operates only when the calibration valves are reached.







2.2.3 CYLINDRICAL PRESSURE TANK

These are built in form of cylinders with closed convex ends. They can be horizontal or vertical. They are used to store liquid gases like LPG, Propane, Butane, Hydrogen and Nitrogen.
These tanks can resist high pressure and have safety valve which began to function when the internal pressure exceeds the design. When the tank is empty the entire volume is occupied by the vapour given off by the product. When the tank is being filled the space available to your product decreases, so that the vapour compresses, an action which gradually increases the overall pressure in the tank. To avoid reaching pressures which could be too high, these storage tanks are connected to a line called the pressure balancer. This line connects the tank to each other and can be lined up to the vessel from which the products is being loaded (Vapour Return Line).
2.2.4 SPHERICAL TANK

The spherical tanks, like the cylindrical pressure tanks are used to store liquefied petroleum gases, butane and propane. They are equipped with relief valves and equilibrating pressure lines (vapour return line).

2.3 MAINTENANCE WORK DONE ON TANKS
Tank breather valve was faulty and was replaced.
Open and close manway of tank whenever it needs to be checked or repaired.
Greased floating roof of tank.



This is a floating roof tank undergoing repair. Rollers and pulleys of the floating roof were lubricated using a grease gun. A crane was used to lift the workers up top of the tank where the pulleys and rollers were located.


2.4 OTHER OFFSITE FACILITIES
2.4.1 FLARE SYSTEM (Unit No. 61)
Flammable vapours from the process units are routed by headers to flare seal drums and are burnt at the flare tips,
Flare system has two flare stacks; i.e. a 28 inch operating flare stack and a 54 inch emergency flare stack.
The operating flare stack is sufficient for burning of normal flaring gases, however at emergency cases of the refinery operation; the emergency flare will back up the operating flare.

2.4.2 WATER TREATMENT UNIT (Unit No. 62)
Polluted water effluents from the refinery are collected and treated in the Waste Water Treatment Unit to make the treated water to a certain level of quality before disposing it to the river near the refinery.
In order to enable efficient treatment, are categorized into several streams in accordance with the kinds and level of contaminants and collected by each category.


2.4.3 FIRE FIGHTING FACILITY (Unit No. 63)
Fire Fighting Facility comprises 3 sets of 600 m3/hr fire water pumps, fire water distribution system, fire water facility, air foam system and the Fire Station for firefighting crew, fire fighting trucks and tools.
2.4.4 FIRE ALARM SYSTEM (Unit No. 66)
Main fire alarm panel is installed in the Fire Station and receives signals from local pushbutton stands for identification of the area on fire and for actuating the fire fighting work.
2.4.5 COMMON ELECTRICAL FACILITY (Unit No. 64)
The electrical power distribution is designed and constructed to supply a very reliable power for users in process units and utility facilities through secondary selective substations with automatic transfer capacity. The other remaining refinery loads are served from radial substations.
2.4.6 TELECOMMUNICATION SYSTEM (Unit No. 65)
2.4.7 SEWER SYSTEM (Unit No. 67)
In other to treat the refinery water effluent efficiently, it is categorized into the following groups:
Process oily waste
Oily water
Clean water
Chemical waste
Sanitary waste water
Oily purge
Other effluents
All of the above facilities and systems mentioned above are offsite facilities and hence the offsite maintenance department is responsible; should there be any damage and need for repair.










2.5 OFFSITE MAINTENANCE
Offsite maintenance encompasses all maintenance activity that involves the offsite facilities. Offsite facilities include virtually every facility that does not involve the on-site processes; which are the manufacturing and production processes, in other words, refining processes. When these refining processes are done, the different refined products are then moved to offsite tanks; intermediate oil tank and product oil tanks.
FINISHED PRODUCT TANKSFINISHED PRODUCT TANKSINTERMEDIATE TANKSINTERMEDIATE TANKSREFINING PROCESSREFINING PROCESSCRUDE OIL TANKSCRUDE OIL TANKS2.5.1 ILLUSTRATION OF PRODUCT MOVEMENT
FINISHED PRODUCT TANKS
FINISHED PRODUCT TANKS
INTERMEDIATE TANKS
INTERMEDIATE TANKS
REFINING PROCESS
REFINING PROCESS
CRUDE OIL TANKS
CRUDE OIL TANKS

SHIPPINGSHIPPING
SHIPPING
SHIPPING

2.6 PUMPS
From the illustrations above, the arrows in the flow chart signifies the direction of flow or movement of product from one location to another through different pipelines for distinct products.
By definition; a pump is a device that imparts energy to a liquid to raise its pressure and move it from one location to another.
Transportation of these products is made easier by the use of pumps form one process to another and likewise different storage tanks. Pumps are widely used in the refinery industries for transporting liquid products of different viscosity; both high and low. Pumps are of paramount importance right from the feed i.e. where the crude oil is received and stored in storage tanks, to the distillation columns i.e. refining process, to intermediate storage tanks, to finished product tanks finally to distribution units for consumers.
There are many different types of mechanical pumps serving a wide range of applications.
In this case, I am going to restrict this report on the type of pumps synonymous to the refining company and of course the offsite maintenance/planning department where I was assigned.
From my experience in the maintenance department, maintenance works are done more on centrifugal pumps because they are the widely used pumping system in the company. This is a simple illustration of the main components of a pump
2.6.1 PUMPING SYSTEM
Main Pump Components:
Pump.
Prime movers: electric motors, diesel engines, air system.
Piping to carry fluid

2.6.2 CAUSES OF PUMPS FAILURES AND TROUBLE SHOOTING.
A. Motor running but no pumping effect:
Motor rotation is not transmitted through coupling.
Discharge valve closed.
Non-return valve or other valves are closed.
Suction line closed or filter clogged.
Air in pump casing.
Suction line leaking.
Shaft seal leaking.
Bottom valve defective.
Suction lift too high.
Priming pump defective.

B. Insufficient capacity:
Wrong direction of rotation.
Number of revolutions too low.
Counter-pressure too high.
Suction line or impeller partly clogged.
Air in pump casing.
Air in pumping medium.
Suction lift too high (inlet pressure too low).
Capitation.
Suction line leaking.
Shaft seal leaking.
Pump worn out.

C. Pump pressure too high:
Number of revolutions too high.
Impeller oversized.
Too many pressure stages.
Specific gravity of pumping medium too high.
Viscosity of pumping medium too low.
Inlet pressure too high.
Manometer defective.

D. Capacity too large:
Number of revolutions too high.
Impeller diameter too big.
Counter-pressure too low.

E. Discharge head too low:
Number of revolutions too low.
Impeller diameter too small.
Too few pressure stages.
Specific gravity of pumping medium too low.
Viscosity of pumping medium too high.
Manometer defective.

F. Leaks:
Cracks in pump casing.
Faulty assembly of pump.
Pipe connections leaking.
Shaft seal leaking (in case of soft stuffing-box packing minor leaks are necessary).

G. Pump wears out quickly:
Wrong materials in relation to pumping medium.
Cavitations.
Stuffing-box tightened too much.
Shaft bent.
Deficient alignment.
Influences through pipe line.

H. Pump wears out quickly:
Wrong materials in relation to pumping medium.
Cavitations.
Stuffing-box tightened too much.
Shaft bent.
Deficient alignment.
Influences through pipe line.

2.6.3 STARTING A PUMP
Before starting any pump, these basic items must be checked:
Check direction of rotation (marked with an arrow).
Check that there is liquid in the pump (might have been emptied by standstill).
Check that the pump is able to turn by hand.
Check that the pump has been lubricated with grease.
Check the pump for noises and vibrations immediately after starting.
Check priming pump (if any).

2.6.4 MAINTENANCE REPAIR DONE ON PUMPS
2.6.4.1 IMPELLER
An impeller is a rotating component of a centrifugal pump, usually made of iron, steel, bronze, brass, aluminum or plastic, which transfers energy from the motor that drives the pump to the fluid being pumped by accelerating the fluid outwards from the center of rotation. The velocity achieved by the impeller transfers into pressure when the outward movement of the fluid is confined by the pump casing. Impellers are usually short cylinders with an open inlet (called an eye) to accept incoming fluid, vanes to push the fluid radially, and a keyed or threaded bore to accept a drive-shaft.
Because the impeller is the prime component that makes up a centrifugal pump, due to prolong or continuous usage, it is therefore subjected to deterioration and eventually it damages.

Direction of flow of a closed impeller

Direction of fluid flow in a pump


An Impeller removed from a pump at the workshop.


A damaged impeller.


Damaged Impellers replaced with these new ones.


An Impeller being removed with the aid of a puller.

Alignment done on pump during installation before connecting the coupling spacer.


Screw pump under repair.

Asphalt Pump (Screw pump) under repair.


A Sanitary pump under repair.



2.6.5.2 MECHANICAL SEAL
All machines such as pumps and compressors that handle liquids or gases
must include a reliable means of sealing around their shafts so that the
fluid being pumped or compressed does not leak. To accomplish this, the
machine design must include a seal located at various points to prevent
leakage between the shaft and housing.
Because of the heavy duty the seal undergoes, with time they tend to leak and hence need replacement.

A section of a mechanical seal.





2.7 VALVES
A valve is a device that regulates, directs or controls the flow of a fluid (gases, liquids, fluidized solids, or slurries) by opening, closing, or partially obstructing various passageways.
Valves have many uses, including controlling water for irrigation, industrial uses for controlling processes, residential uses such as on / off & pressure control to dish and clothes washers & taps in the home. Even aerosols have a tiny valve built in. Valves are also used in the military & transport sectors.
Valves are found in virtually every industrial process, including water & sewage processing, mining, power generation, processing of oil, gas & petroleum, food manufacturing, chemical & plastic manufacturing and many other fields.

2.7.1 MAINTENANCE WORK ON VALVES
Install Gate valve on a pump line.
Blind valve on pump line.
Replaced tank breather valve.
Changed venting and draining valve on pump line.

New Gate valves to be installed.

2.8 JOINTING (Gaskets)
The jointing used between assembled machined parts in the form of thin sheets. There are innumerable jointing manufactured on an asbestos base. These usually consists of approximately 60 to 90% long — threaded asbestos mixed with a binding agent comprised of India rubber or synthetic resin and mineral filling material. Such sheet jointing can be used up to approximately 500*C and up to 100 bar. A special asbestos-type jointing has been developed for refrigerating plants.
The asbestos jointing can be reinforced with brass or steel wire mesh or with perforated metal plate. These jointing can be used at very high temperature and pressure and especially for pipeline systems for superheated steam or as joining in diesel engine exhaust systems.
Because a lot of pumps were removed and reinstalled, therefore new gaskets were cut for these purposes. The size, thickness, diameter and bolting holes of the gasket were being cut and machined to desired specification at the company workshop.










2.9 THE COMPANY WORKSHOP
Because the refinery company also value local contents, so most of the parts used for maintenance are been fabricated instead of relying on importation always. These fabrications are done in the workshop where there are many machines like the; Over-head crane, Lathe machines, Milling machines, Grinders, Vertical lathe machine, Rolling machine, Bending machine etc.

The Company Workshop.


Vertical Lathe Machine.


A pump shaft machined on the Lathe Machine.

Drilling Machine.


Technicians working on a pump shaft.








2.9.9 PLANNING
for any maintenance work or construction that needs to be done in the refining company, those that are assigned or requested for a specific job, a paper known as 'Work Request' must be filled appropriately describing the kind work to be undertaken; e.g. mechanical or electrical. After all has been specified, it is then forwarded for approval, if approved, then the request is registered and given to the engineers responsible for doing the job.
A 'Work Schedule' is made afterwards, stating the names of engineers undergoing a particular work and their corresponding superintendants.
A sample of a Work Schedule:

Offsite Maintenance Work Schedule.
CHAPTER THREE
3.1 PROBLEMS ENCOUNTERED
Most of the equipments in the plant were obsolete and some were dysfunctional and this result to a lot of leakages in many equipment, both stationary(e.g. tanks) and rotary(pumps)
Inadequate supplies of Personal protective Equipments (PPE) to SIWES students.
Replacement of some parts are not available in the company warehouse and because of the delicacy of some equipments, some of them are imported. Which sometimes takes quite some time to be delivered and this hinders our training experience.
Images of some of the maintenance work could not be gotten, Due to the strict security protocols of the company, cameras and mobile phones were not allowed around the process area where most of the work is done.
Due to my health condition I was not able to do much physical work.
Some of the indigenous materials used for repairs are not of the best quality and as such, some of them wear out rather quickly due to low quality.




CHAPTER FOUR
4.1 CONCLUSION
4.2 RECOMMENDATION









CHAPTER FIVE
5.1 REFERENCE
KRPC maintenance catalogue.
Pumps and types of pumps in detail.
http://www.slideshare.net/FarrukhShahzad1/
Ricky Smith, R. Keith Mobley. Industrial Machinery Repair: Best Maintenance Practices Pocket Guide, Butterworth–Heinemann, USA, 2003.

Managing Director
Executive director Operations
Manager Power Plant & utilities
Manager production planing & quality control
Manager Fire Safety & Env.
Manager Maintenance
Manager Eng'g & Tech Services Division
Manager Production
Dep. Manager Oil Movement
supt.LAB oil movt.
Executive Director services
Manager Human Resources
Manager Administration
Manager Finance & Accounting
Manager Manpower Development
Deputy Manager Security