ESSAR OIL VADINAR REFINERY

Mega Turnaround Sept-Oct 2011

A Bench Mark in the Refining sector looking

at the large Work-scope which was completed

with compressed engineering days and

then fast track start-up of the units

Definition :

In petroleum refining , turnaround means a

scheduled large-scale maintenance activity wherein

an entire process unit is taken off stream for an

extended period for comprehensive revamp and

renewal. This operation involves a lot of preparations

and requires many precautions, especially at during

startup.

Turnaround Maintenance

Contents

Turnaround Maintenance

+ Objective / Purpose

+ Process / Procedure

+ Strategy Followed

+ Organogram

+ Key Achievement/Highlights

+ Key Learning

+ What made it happen & final success

+ Major Counts at a glance

+ Sep’11 Cost : Budget Vs Actual

+ Duration Schedule Vs Actual

Aligned with business goals

Clear, unambiguous and prioritized

Measurable, objective and monitored

Based on experience , scope, knowledge and

data

Aggressive but achievable

Deliberated and agreed to key stakeholders

Criteria for T/A Objectives

+ Make plant safe to operate till next outage.

+ Improve efficiency & throughput of plant by suitable modification.

+ Reduce routine maintenance costs

+ Perform Regulatory Inspection

+ Increase reliability / availability of equipment during operation

+ Re-establish Plant Capacity .

+ Upgrade technology by introducing modern equipment &

Technology

+ Complete corrective /preventive maintenance & project work

Turnaround Objective / Purpose

Turnaround Objective / Purpose

+ To execute the turnaround with the highest possible

safety record.

+ To achieve the best quality of workman ship.

+ To complete the turnaround in the shortest possible time.

+ To complete the turnaround at the lowest possible cost.

+ Revamp Jobs for Refinery capacity augmentation from 14

MMTPA to 18 MMTPA.

CDU/VDU/SGU Revamp

FCCU Revamp

VBU to CDU Conversion Tie-ins.

SRU Revamp

Train: I integration Tie-ins.

Turnaround Organization - September 2011 Sr.No. Function Name

1 Head-Refinery C Manoharan

2 Chief Turnaround Manager Narada Singh

3 Overall Operation Co-Ordinator KC Swain

4 Tech.Services Co-Ordinator Satheesan V N

5 Construction Co-Ordinator G G Mehta (EPIL)

6 HSEF Dr Gopal Jayaraman

7 Turnaround manager P Rambabu

8 Turnaround planning Co-Ordinator D D Chaudhari / Jayanti Vagdoda

9 Turnaround-MIS-Co-Ordinator Hembala Dixit

10 Operation Co-Ordinator ISBL: SKM Rahman/Utility: Chitti Babu/PIT/COT: Ajay Veer

11 Engineering & Inspection Ramesh Kumar

12 Revamp/Expansion Project Manager Ramakrishna Paramhans (EPMCL)

13 Revamp/Expansion Execution

Manager Sudhir Porichha (EPIL)

14 Overall Tie-ins Co-Ordinator Rakesh Kumar

15 Instrumentation S. Laxminarayan

16 Electrical Rajeev Kumar

17 Civil Ashok Srivastava

18 EPS Dhaval Doshi

19 Security Cmdt. Raghuraman

20 Admin Geojo Paul 21 Reliability/Rotary/ Workshop Amit Kumar N

22 Commercial J K Jani

23 RSM RSM

Turnaround Optimisation Program

TR - 0

TR - 1

TR - 2

TR - 3

TR - 4

Strategic Site Turnaround

Review

Turnaround Work Scope

Optimization

Planning, Scheduling, and

Integrated Plan Basis

Integrated Plan Execution

Techniques, T/A Management

Post Turnaround Review

.

Turnaround Optimisation Program

TOPTM

Overview Scope Cost Schedule Preparedness

Strategic Review

Workscope Review

Execution Review

Preparedness Rev.

Close Out Review

Ideal

Timing

Run Cycle (2)

- 9 months

- 6 months

- 3 months

+1 months

Mission for Shutdown

From Chief Turnaround Manager

{S R T C} SAFETY

RELIABILITY

TIME-BOUND

COST-EFFECTIVE

Turnaround Process / Procedure

+ Collection of all inputs such as previous reports, procurement

lead times, job lists, own and contractor resources availability

etc

+ Gathering information from the previous turnaround by way of

group discussions, reviewing previous plans and turnaround

reports

+ Finalization of job list and freezed after challenging by

experience multi disciplinary Challenging Team

+ Setting of turnaround run lengths and approximate turnaround

duration

+ Preparation of work scope for next turnaround

+ Critical review of work scope

+ Breakdown jobs into specific activities

+ Review implementation option and resource requirement

+ Prepare an achievable plan and well integrated level I, II, III

schedule

Turnaround Process / Procedure

+ Procurement of material

+ Split between the jobs to be carried out by Company

personnel and contractor

+ Contract Planning

+ Resources for running units

+ Check the jobs for pre-requisites such as scaffolding,

insulation removal, blinds, etc

+ Pre-shutdown fabrication

+ Progressive hand over of the execution portion to the field

co-ordinators, planners, field engineers, contractor

supervisors

+ Ensure availability of tools and construction equipment

+ Ensure adequate infrastructure facilities like, labour

colony, canteen / space for eating for workman, medical

facilities, transportation, drinking water, toilet facility etc…

Turnaround Process / Procedure

+ Administrative arrangements

+ Security arrangements

+ Implementation plans

+ Monitoring of jobs during execution

+ Contingency plan for Additional resources required

during turnaround

+ Turnaround close-out

Pre Shutdown Preparation

+Keep end blinds /spectacles near line flanges as per positive isolation

plans indicating required date for readiness on tags.

+Keep adequate numbers of Testing Spools, temporary Connections

for connecting pressure gauges & drains/vents for testing of Heat

Exchangers (Both Shell & Tube side)

+Fabrication of Spool Pieces for Heater Pigging Jobs.

+Erection of scaffolding wherever possible e.g. For Heat Exchanger,

inaccessible Blind locations, control Valve s, safety valves, etc.

+Lifting and shifting arrangement for control valves , Safety Valves, etc.

+Provision of Power supply points at planned locations e.g. laying of

additional cable if any for welding, Hydro jetting and Hydro testing M/C.

+ Arrangement of temp. lift and Dehumidification at defined locations.

+Detailing of Scope of work for all S/D Jobs

+Preparation of Maintenance Execution Procedure & Work Pack for all

S/D Jobs

+Preparation of TBRA for all Critical S/D activities e.g. Hot jobs,

Modification job, work at height or any other confined space jobs

+Assignment of specific job responsibilities to a group of cross

functional team e.g. team involving Maintenance, Operation, Process,

Safety and Inspection

+Engaging Quality & experienced contractors having good track record

of executing S/D Jobs in other Refineries to the maximum extent.

Preparedness for Safe & Effective Execution

+Inclusion of Contract Safety System in Contractor Scope

+Arrangement for Pre S/D Training to Contract Manpower

+Use of only Certified Tools & Tackles

+Use of Flame Arrestor for all Vehicles,Trailors, Crane & Hydra

+Tool Box Talk by Engineer to Contract Manpower

+Strict Compliance of Safety Work Permit System

+Use of General & Specific PPE’s e.g. Life line belt, Fall Arrestor

+Certified Lifting plan for heavy lift

+Certification of Scaffolds & use of “Safe to use” Tag

Preparedness for Safe & Effective Execution

Facilities and Services (F & S)

1) Contractor office space / working area

– Space for contractor’s offices have been provided in the S/D yard. Some of the contractors will have to be located inside the units (from logistic point of view).

2) Canteen facilities for contractor

SAB : Own arrangement – Space will be provided by EOL.

ECIL : Own arrangement – Space will be provided by EOL.

Other contractors: Tea will be served at work place as free of charge to all the contract labour at 01.00 hr, 4.00 hrs, 7.00 hrs, 10.30 hrs, 15.30 hrs, 16.30 hrs (incl W/s & utility)

Two sheds are being constructed. One at shutdown yard, & another tent in old parking area (tent by admin along with lighting. Power supply by EOL).

Required tables, chairs, etc will be arranged by Admin.

Lighting arrangement in tin sheds will be provided by elect dept.

3) Canteen facilities for officers:.

Location will be at area in between CCB & LAB.

Tables, chairs, carpet & lighting is being organized by Admin and power supply by electrical dept.

Facilities and Services (F & S)

4) Drinking Water Facilities :

5) Shutdown office:

6) Urinals & Toilets:

Sufficient no of toilets and urinals have been constructed in shutdown yard.

7) Resting Place :

Separate tents arranged for Dining and Rest room for different contract manpower as well as for engineer. Near Shutdown yard to avoid manpower movement.

8) First Aid office:

Central first aid tent will be located in front of Lab near E-W road. It will be supplemented by paramedic officer / doctor on round the clock basis and one ambulance.

9) Accommodation for Labour / Transport.

Accommodation for 10000 Labours have been booked in Labour colony.

For transporting Labours from labour colony to refinery, our trailers will be used and necessary railing arrangement is being done in our workshop for safety. In addition to this permission will be given for walking from labour gate to workplace on the fixed route.

10) Office space for foreign expatriates:

11 Timing: Working time: 08.00 to 20.00 & 20.00 to 8.00 hrs.

Lunch time: 12.30- 13.30 hrs in two batches (30 min break)

Dinner: 22.00 to 23.00 hrs In two batches

Radiography timing: It will be declared on time to time & followed

Detailed Shutdown Planning

+Planning started with setting of Milestones for Planning activities

+Compilation, discussion and finalization of Job list

+Cost Estimation of S/D Jobs, Detail technical study and BOM

preparation for S/D activities, material procurement action

+Preparation of detail scope for awarding the contract

+Preparation of Work packs by operations and standard

maintenance procedures by maintenance

+Finalization of resources, Heavy Equipments, Inspection Plans,

identifying service requirements of technical specialist & expatriate

+Organization of S/D meetings for review, micro detailing and

finalization of overall S/D schedule

Turnaround Organization - September 2011 Sr.

No. Function Name

1 Head-Refinery C Manoharan

2 Chief Turnaround Manager Narada Singh

3 Overall Operation Co-Ordinator KC Swain

4 Tech.Services Co-Ordinator Satheesan V N

5 Construction Co-Ordinator G G Mehta (EPIL)

6 HSEF Dr Gopal Jayaraman

7 Turnaround manager P Rambabu

8 Turnaround planning Co-Ordinator D D Chaudhari / Jayanti Vagdoda

9 Turnaround-MIS-Co-Ordinator Hembala Dixit

10 Operation Co-Ordinator

ISBL: SKM Rahman

Utility: Chitti Babu

PIT/COT: Ajay Veer

11 Engineering & Inspection Ramesh Kumar

12 Revamp/Expansion Project Manager Ramakrishna Paramhans (EPMCL)

13 Revamp/Expansion Execution

Manager Sudhir Porichha (EPIL)

14 Overall Tie-ins Co-Ordinator Rakesh Kumar

15 Instrumentation S. Laxminarayan

16 Electrical Rajeev Kumar

17 Civil Ashok Srivastava

18 EPS Dhaval Doshi

19 Security Cmdt. Raghuraman

20 Admin Geojo Paul

21 Commercial J K Jani

22 RSM RSM

+ 35 days Turnaround Completed Safely ON SCHEDULE

+ Turnaround Cost within Budget as per plan. Few

variances due to major exigencies during the Turnaround

period.

+ Tie - ins of Train - I new units & facilities with existing

refinery : ISOM, HMU, DHDT, VGO- HT, ARU, SWS, SRU,

DCU, & all OSBL/offsite tankages facilities

+ Revamp of existing units for capacity Augmentation has

been completed : CDU & VDU (18MMTPA) & consistently

will be able to process high TAN crudes , FCCU (3.7MMTPA)

& FCC operation on hydro treated feed, SRU (To Improve the

sulphur recovery from 99 to 99.9 wt%).

Accomplishments of Turnaround which was

completed on schedule in spite of lot of challenges

+ Total Revamp (modification & reinstallation) completed in

28 engineering days;

+ World tallest single crude distillation column revamped (77 trays,

90 meter height)

+ Vacuum distillation column revamped (4 bed, 60 meter height &

new vapour horn installation)

+ Major piping modifications & replacement in existing units i.e. CDU

& FCC (dismantling 75,424 inch meter & erection of 85,098 inch

meter)

+ Revamp completed- 36 Nos. Exchangers - Modifications/New

exchangers, 7 nos. columns & 6 nos. vessels modification, 6 nos.

new ejectors erected in VDU, 29 nos. pumps modification complete

& boxed-up, 4 nos. Filters modification, CDU Heater A & B, VDU Heater- A & B revamp/ modifications

Accomplishments of Turnaround which was

completed on schedule in spite of lot of challenges

Turnaround Key Achievement/Highlights

+ FCCU all revamp job completed within schedule without any

incident, this includes Reactor-Riser 2 nos additional Feed

nozzle installation, Tie Ins Job 141 nos , Additional Exchanger

installation 2 nos along with piping, 6 nos Vessels & 4 nos

Pumps modification

+ All Major M & I Job completed within 21 days duration, 36

Column, DHDS reactor catalyst replacement, CCR/NHT Reactor

catalyst replacement, FCCU- 6 nos. bellows replacement, Flue

gas boiler tube banks replacement, MAB Surface condenser

replacement, SRU MCC-1 & 2 major refractory repair, UCT & PCT

10 nos. pumps discharge line replacement, 236 Exchangers, 199

Vessels, All 6 heaters pigging, 16 Heaters maintenance, 102

PCNs (GRM & Reliability related schemes), PCN-Total INCH DIA

:28624,Total INCH MTR: 32500,Steel Structure: 103MT

Turnaround Key Achievement/Highlights

+ 52 Fin fan coolers, Major overhauling of over 50 Compressor/

Turbine/ Pumps. Overhauling of 297 control valves and 551

pressure safety valves,

+ DCS/ESD up gradation in all the units,

+ Capital overhauling of 145 motors, 14 Power Transformers, 45

VACUUM circuit Breakers (33 kV), 201 Vacuum circuit Breakers

(6.6Kv) 198 LT Circuit Breakers. 108 obsolete relays replaced

with High speed Numerical relays,

+ Bus bar differential protection scheme commissioned at Utility,

CCR, FCCU and CDU Electrical Substations, New 33kV

switchboard and 6.6 KV switchboard commissioned in CDU

and Utility Substations.

+ Implementation of Fast Bus Transfer scheme at CDU, CCR,

FCCU, DHDS, and Utility substations and many other important jobs

Turnaround Key Learning

• Temporary Lift was installed at CDU & VDU column,

for movement of light weight materials as well as

workmen from ground to column and Vice Versa

which remarkably reduced required time frame of

execution from 45 days to 35 days and all jobs were

smoothly completed in scheduled timeframe.

Temporary Lift, installed at

CDU / VDU column

Turnaround Key Learning

• Dehumidification system provided in CDU & VDU column was

very effective for maintaining comfortable atmosphere inside

column for workmen, by maintaining temperature between 28

to 32 deg C & Relative humidity was less than 65% inside the

columns. This facility has remarkably contributed in reducing

the time mainly for huge quantum of welding / hot work inside

the column. Dehumidification System in CDU & VDU column

Dehumidification System for Reactor-Riser

Turnaround Key Learning

• New idea of Exchanger cleaning bay has resulted in huge time

saving by providing central Point for Cleaning of all Tube

Bundles with advance Hydro jetting machines i.e.

Inside/Outside Robotic machines and Inspection (Visual &

Eddy Current Testing) was also carried out at same place which

helped in good housekeeping and keeping ISBL unit free from

Oil, Coking & Sludge and Further reduced House Keeping Job

also.

Exchanger Cleaning Bay

Turnaround Key Learning

• Robotic Hydrojetting machine made available at exchanger

cleaning bay for Heat Exchangers Tube bundle cleaning,

Machine operating with multi jet nozzles–5 nos working

simultaneously which took 1/5th times of ordinary manually

tube bundle cleaning process, max pressure of 20000 PSI, due

to high pressure & mobility of machines the exchanger tube

bundle cleaning process was very fast and effective, and hard

deposit was removed very easily, thus saving huge time in

cleaning huge number of tube bundles

Robotic Tube bundle

cleaning Machine

What made it happen(from 45 to 35 Days

•Decisive Leadership and on spot decisions.

•Micro level Turnaround planning started well in advance before 18 months for

man, material , machines, job list and its work pack.

• Defined all critical jobs :

1. CDU/VDU column Revamping.

a. We treat contract manpower as our employee and provide all the facilities

like Accommodations/Food/Transport/Medical/Water/Tea-Snacks at site

only.

b. Use of new concepts and modernized gadgets e.g. providing lifts as high

as 90 Meters, Dehumidification /AC, Chemical decontamination etc.

c. Maximizing the pre turnaround activities e.g. 90% scaffolding, issuing of

100% bulk material/ spares and its prefabrication/ machining and placing

in position.

d. Daily Review and making rolling plan for speedy execution.

e. Timely supply of equipment and logistics arrangements

What made it happen(from 45 to 35 Days)

2. CDU/VDU Heater Modification.

a. Optimise the use of Pigging machines in such a way that critical Heater

handed over with in minimum possible durations.

b. Use of new concepts and modernized gadgets e.g.SAF RAD

Radiographic machines so that other jobs can be continued.

c. Heater jobs divided in multiple zones so that welding jobs can be

performed at maximum locations at a time and saved lot of time.

d. Keep standby manpower for critical activities so that job shuld not suffer

at any cost.

3. FCCU Reactor Refractory repairing:

a. Providing of Dehumidification /AC.

b. Using SAF RAD Radiographic machines,Diamond cutter for refractory,

electrical and instrument testing equipment etc.

c. Using of skilled manpower and guidance from Refractory experts.

d. Ensures Support services like inspection/process availability 24X7 on the

job.

What made it happen(from 45 to 35 Days)

•Decisive Leadership and on spot decisions.

•Micro level Turnaround planning started well in advance before 18 months for

man, material , machines, job list and its work pack.

• Defined all critical jobs :

1. CDU/VDU column Revamping.

a. We treat contract manpower as our employee and provide all the facilities

like Accommodations/Food/Transport/Medical/Water/Tea-Snacks at site

only.

b. Use of new concepts and modernized gadgets e.g. providing lifts as high

as 90 Meters, Dehumidification /AC, Chemical decontamination,

Inside/Outside Robotic Hydro jetting, SAF RAD Radiographic machines,

powered torqueing/tensioning machines, Diamond cutter for refractory,

Ultra-modern rotary laser based condition monitoring, electrical and

instrument testing equipment etc.

c. Maximizing the pre turnaround activities e.g. 90% scaffolding, issuing of

100% bulk material/ spares and its prefabrication/ machining and placing

in position.

d. Timely supply of equipment and logistics arrangements

•Engaged best contractor and resources and skilled/ specialized man

power. Optimum deployment & effective utilization of resources

•Organization of Turnaround meetings for review, micro detailing and

finalization of overall Turnaround schedule.

•Compliance of Systems and Procedures, Strong belief in team work,

motivation and support from Top Management.

•Caring of the Employees and Workmen resulted in excellent overall

productivity.

•All disciplines viz- Maintenance, Operation, TS/Process, Inspection,

Expansion, HSEF, Security, Project/Engg, HR, CRG, IT, Warehouse,

Commercial, Finance and Administration have demonstrated tireless

effort and cohesive work culture towards achieving Turnaround goal.

What made it happen(from 45 to 35 Days)

The Success : 100% Planned jobs completed

along with last minute surprises

•It is worth highlighting that not only 100% planned jobs

have been completed effectively but many important jobs

came at last moment which could be also completed within

this Turnaround period.

•Last minute surprises and exigencies were also handled

effectively- CCR Recycle gas compressor major

maintenance due to high vibrations, DHDS Recycle gas

compressor unplanned overhauling due to coking in rotor,

Damage of 4th Bed layers of packing in VDU column,

Shifting of HP steam line from support, Last moment receipt

of CDU/VDU heater tubes & prefabrication, Cracks in CDU

Heater supports and many more……., created a huge

pressure.

Turnaround Sep’11 : Major counts at a Glance

Total Turnaround duration 35 days

Total engineering duration 26 days

Total no of blinds provided for plant handover 3924 Nos

Turnaround Budget 74.66 Cr

Turnaround Expenditure 74.69 Cr

Major Contractor involved 70 Nos

Turnaround Manpower (Officer + Workman+ OEM Experts) 15000 Nos

Essar Officers (In 12hrs Shift Rota) 846 Nos

OEM & Expatriate 20 & 5 Nos

Cranes (250T,200T,150T ,135T,130T,120T,110T,100T& 60T) 57 Nos

Hydra 39 Nos

Fork Lift 10 Nos

Trailer 33 Nos

Exchanger tube bundle pullers 05 nos

Hydro-jetting machines 26 Nos

Hydro-testing machines 50

Insitu Machining sets 12

Rotomol cleaning machine 2

Stress relieving machine 20

Air compressors 09 Nos

Pigging machine 06 Nos

Hydraulic torque tightening m/c 12

Transformer oil filtration machine 3

Heating oven for motors 2 nos

Transformer oil heating and vacuum m/c 3

Mobile lighting tower 2 nos

Fire Blankets 3500 Nos

Total no. of Revamp Major jobs executed 1618 Nos

Total no. of Major M&I jobs executed 2492 Nos

Turnaround Sep’11 Cost : Budget Vs Actual

Sr.

No. Description

Budget-

Material

cost

Budget-

Service

cost

Total

Budget (

Material+

Service)

cost

Actual

Material

Cost

Actual

Service

s Cost

Total (

Actual) Justification

A Mechanical/Operations (Sub

total) 15.86 40.10 55.96 18.49 35.79 54.63

B Electrical 2.52 2.22 4.74 2.01 1.90 3.91

C Instrument 2.99 0.99 3.98 1.64 1.26 2.90

D Civil 0.50 2.99 3.49 1.70 5.58 7.27

Additional Job of Sea water intake

well inside painting, Repairing

and Chemical resisting coating in

pump house basin of Sea water

supply reservoir, CDU /VDU

heater main flue gas duct to stack

cleaning & inspection, Insulation,

Scaffolding

E Inspection 1.80 1.80 0.00 1.53 1.53

F Fire & Safety 0.30 0.35 0.65 0.37 0.18 0.55

G Admin & Canteen facilities,

Vehicles, OHC & IT 0.00 1.51 1.51 0.09 2.34 2.43

H Maintenance

supervisor/Engineers hiring 0.00 2.53 2.53 0.00 1.47 1.47

Total shutdown Budget (in

crores). (Addition of A to H) 22.17 52.48 74.66 24.30 50.04 74.69

TOTAL COST (Rs in Cr.) 74.66 73.96

Rs in Cr.

Turnaround Duration Schedule Vs Actual

UNIT

PLANNED STOPPAGE DATE

& TIME

ACTUAL FEED CUT OFF

STOPPAGE DATE & TIME

PLANNED START-UP DATE & TIME

ACTUAL FEED CUT IN START UP

DATE & TIME

CDU/VDU/SGU

18/09/11 & 08:00 hrs 18/09/11 & 04:45 hrs 23/10/11 & 08:00 hrs 24/10/11 & 11:08 hrs

VBU 19/09/11 & 02:00 hrs 19/09/11 & 00:30 hrs 24/10/11 & 08:00 hrs 24/10/11 & 19:15 hrs

TREATERS 20/09/11 & 08:00 hrs 19/09/11 & 00:30 hrs 23/10/11 & 08:00 hrs 23/10/11 & 18:00 hrs

FCCU 19/09/11 & 08:00 hrs 19/09/11 & 09:10 hrs 23/10/11 & 08:00 hrs 23/10/11 & 10:25 hrs

NHT 18/09/11 & 20:00 hrs 18/09/11 & 21:15 hrs 22/10/11 & 08:00 hrs 23/10/11 & 16:35 hrs

CCR 18/09/11 & 20:00 hrs 18/09/11 & 21:35 hrs 21/10/11 & 08:00 hrs 27/10/11 & 05:25 hrs

DHDS 18/09/11 & 20:00 hrs 18/09/11 & 20:00 hrs 24/10/11 & 08:00 hrs 29/10/11 & 16.00 hrs

ARU 21/09/11 & 08:00 hrs 19/09/11 & 09:00 hrs 23/10/11 & 08:00 hrs 23/10/11 & 21:00 hrs

SWS 21/09/11 & 12:00 hrs 21/09/11 & 08:15 hrs 23/10/11 & 08:00 hrs 24/10/11 & 04:00 hrs

SRU train-1 20/09/11 & 08:00 hrs 19/09/11 & 06:45 hrs 23/10/11 & 08:00 hrs 28/10/11 & 19:10 hrs

SRU train-2 20/09/11 & 08:00 hrs 18/09/11 & 09:00 hrs 23/10/11 & 08:00 hrs 31/10/11 & 12:00 hrs

UTILITY-UCT

29/09/11 & 08:00 hrs 27/09/11 & 17:00 hrs 11/10/11 & 08:00 hrs 13/10/11 & 16:00 hrs

UTILITY-PCT

26/09/11 & 08:00 hrs 25/09/11 & 00:00 hrs 13/10/11 & 08:00 hrs 15/10/11 & 10:00 hrs

H2S Flare 26/09/11 & 08:00 hrs 26/09/11 & 11:30 hrs 14/10/11 & 08:00 hrs 15.10.11 & 18.45 Hrs

HC Flare 30/09/11 & 08:00 hrs 26/09/11 &11:30 hrs 15/10/11 & 08:00 hrs 12/10/11 & 20:30 hrs

N2 Plant 01/10/11 & 08:00 hrs 06/10/11 &18:00 hrs 05/10/11 & 08:00 hrs 15/10/11 & 06:00 hrs

Steam 01/10/11 & 08:00 hrs 04/10/11 &08:30 hrs 05/10/11 & 08:00 hrs 10/10/11 & 09:00 hrs

THANK YOU