ENERGY AUDIT REPORT- MAKUM OIL COLLECTING STATION ACKNOWLEDGEMENT Petroleum Conservation Research Association, Eastern Region (PCRA, ER), appreciates the interest, participation and collaboration by the management & engineers of the Oil India Limited (OIL) in carrying out Energy Audit at “Oil Collecting Station- Makum ( Makum OCS) in Tinsukia District in in upper Assam . Our special thanks to the Installation Manager and his team of Engineers, Supervisors and technicians involved for Makum OCS , who have extended their co-operation and courtesy to the energy audit team during the audit. Petroleum Conservation Research Association, Eastern Region (PCRA, ER) appreciates the interest, participation and support by the Management, Staff-members, Medical Administrators and Engineers of M/s Oil India Limited (OIL) during the tenure of the field exercises, vis-à-vis, the Energy Audit, conducted at Makum Oil Collecting Station during the period 07.08.14 – 10.08.14. Period of Audit: 07.08.2014 to 10.08.2014 We want to put on record our thankfulness to the Administration of Technical Audit, OIL, Duliajan and Field Engineers and Technical Staff Members, attached with Oil Collecting Station, Makum, which have been extended during the observation of facilities and measurement of field data during the period. Our sincere thanks and gratitude are also to be put on record for the Management and Auditors of M/s Oil India Limited, Department of Technical Audit, for their initiative for the audit and the support and cooperation, received during the data collection, liaison and availability of necessary documents required for the field exercises. M/s Oil India Limited, A/c- Makum OCS M/s Petroleum Conservation Research Association, Kolkata Page 1
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ENERGY AUDIT REPORT- MAKUM OIL COLLECTING STATION
ACKNOWLEDGEMENT
Petroleum Conservation Research Association, Eastern Region (PCRA, ER), appreciates the interest, participation and collaboration by the management & engineers of the Oil India Limited (OIL) in carrying out Energy Audit at “Oil Collecting Station-Makum ( Makum OCS) in Tinsukia Districtin in upper Assam. Our special thanks to the Installation Manager and his team of Engineers, Supervisors and technicians involved for Makum OCS, who have extended their co-operation and courtesy to the energy audit team during the audit.
Petroleum Conservation Research Association, Eastern Region (PCRA, ER) appreciates the interest,
participation and support by the Management, Staff-members, Medical Administrators and Engineers of
M/s Oil India Limited (OIL) during the tenure of the field exercises, vis-à-vis, the Energy Audit, conducted
at Makum Oil Collecting Station during the period 07.08.14 – 10.08.14. Period of Audit: 07.08.2014 to
10.08.2014
We want to put on record our thankfulness to the Administration of Technical Audit, OIL, Duliajan and
Field Engineers and Technical Staff Members, attached with Oil Collecting Station, Makum, which have
been extended during the observation of facilities and measurement of field data during the period.
Our sincere thanks and gratitude are also to be put on record for the Management and Auditors of M/s
Oil India Limited, Department of Technical Audit, for their initiative for the audit and the support and
cooperation, received during the data collection, liaison and availability of necessary documents
required for the field exercises.
Finally, special thanks are due to all members of the Audit team for their planning, field data collection,
and all sorts of related exercises.The Audit team comprising the following team member from OIL and
PCRA ER are as stated below:
The Energy Audit Team for Makum Oil Collecting Station :Station:
On behalf of M/s Oil India Limited On behalf of M/s Petroleum Conservation .
M/s Oil India Limited, A/c- Makum OCSM/s Petroleum Conservation Research Association, Kolkata Page 1
ENERGY AUDIT REPORT- MAKUM OIL COLLECTING STATION
Research Ass.ociation
Er. Ranen Mandal, Chief Manager- tech. Audit
Er. Debabrata Tamuly, Installation Manager,
Makum OCS
Er. Kishore Deka, Sr. Tech. Auditor
Mr. Ranen Mandal, Chief Manager- Tech. Audit
Mr. Debabrata Tamuly, Inst. Manager, Makum OCS
Mr. Kishore Deka, Sr. Tech. Auditor
Mr. Pranab Dutta, Tech. Auditor
Er. Abhijit Chanda, Addl. Director, PCRA
Er. Dabasis Ransingh, Jt. Director, PCRA
Mr. Abhijit Chanda, Addl. Director, PCRA
Mr. Dabasis Ransingh, Jt. Director, PCRA
ErMr. Subrata Sanyal, Certified Energy Auditor
INDEX
Chapter Title Page
1.0 Executive Summaery 3
2.0 SummerySummary of Savings Potential 4
3.0 Introduction to the Report 6
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ENERGY AUDIT REPORT- MAKUM OIL COLLECTING STATION
4.0 Scope of Work 9
5.0 Methodology of the Audit 10
6.0 Present Energy Scenario 12
7.0 Study of Electrical Power Consumption 15
8.0 Study of Pumps 18
9.0 Study of Electric Motors 23
10.0 Study of Air Compressor 25
11.0 Study of Performance & Efficiency of Gas Engines 27
12.0 Study of Crude Oil/ Natural Gas Consumption 30
13.0 Study of Illumination 33
14.0 General Observations of the Audit 35
15.0 Notes & Conclusion
Annexur
e
A1 Line Diagram of Material Flow
A2 List of Energy Efficient Equipment Suppliers
EXECUTIVE SUMMARY
1.1.1 Major Recommendations and Savings potentials :
Short and Medium Terms :Terms:
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ENERGY AUDIT REPORT- MAKUM OIL COLLECTING STATION
Recommendations Savings per Annum Estimated Investment (Rs.)
Simple pay backpayback periodkKWHrh/Cum Rs.
Savings of Natural Gas by running 125 KVA Gen. Set through-out the day
3,50,400 m3 22,70,592.00 Nil Immediate
By By iimproving the efficiency and flow rate of COD Pumps #1,2& 3
1,36,129 m3 9,12,113.00 Nil Immediate
By By mmaintenance of valves (#5) & increasing speed (#6)
63,773 m3 4,13,249.00 Nil Immediate
By By iimproving efficiency and flow-rate of F.W. pumps
1,43,631 KWHrkWh
6,53,521.00 Nil Immediate
By By oover-hauling of Booster pumps, running hours be reduced
18,746 KWHrkWh
85,294.00 Nil Immediate
By changing consumption pattern of gas by installing compressor to convert 10 psi to 30 psi
21,90,000 m3 1,41,91,200.00 2,37,12,300.00 1 year 8 months
By replacing fluorescent Tube lamps by T-5 lamps
6,407.94 KWHrkWh
29,156.00 32,494.00 13 months
[1.1.2] Medium / Long Terms :Terms:
[1.1.3] No recommendation
Energy metering for measuring the different types of utility i.e. electrical, crude oil, natural gas,
water to be installed at the installation for effective utilization of energy.
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ENERGY AUDIT REPORT- MAKUM OIL COLLECTING STATION
SUMMARY OF SAVINGS POTENTIAL
Maximize the use of 125KVA Run only 125 KVA Generator Set through-out the day, in place of
250 KVA generatorgenerator in the night. It will improver the loading on the generator, improve
its electrical parameters.
and reduce the load of utility attached with 250 KVA generator.
Adjust the running speed of gas-engines, attached with Crude Oil Disposal Pumps by adjusting
the governors. It will increase the lives durability of the engines.
Over-hauling of Crude Oil Disposal Pumps is solicited need to improve the efficiency and flow-
rate. The total running hours of the pumps will thus be reduced substantially. At present, the
flow rate is around 67% of the rated flow. The actual flow-rate is desired to be improved to 80%
of the rated.
Replacement of suction and delivery valves of Crude Oil Disposal Pumps is solicited along with
increasing of engine #6 speed to 1500 RPM by adjusting the governor. The flow rates/ hour will
be increased, along with reduction of fuel consumption at engine for same rate of delivery.
Over-hauling of Formation Water Pumps is urgently required to increase the flow rate and water
leakage. Actual working hours for the pump to complete the task will be substantially reduced.
Over-hauling of Booster pumps is required to reduce the running hours and to increase the flow.
Present pattern of usage of natural gas at 30 PSI and 10 PSI needs to be revisited. The present
level of flaring should be reduced by utilizing them for internal purpose of feed to the grid with
the compression at 3rd . party level.
Crude oil leakage at Crude oil Despatch (COD) Pump should be investigated and
checkedarrested.
Illumination inside the compound and at operation sheds to be increased, either by replacing
faulty fittings or adding new fittings.
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Existing 36 watts Fluorescent Tube Lamps are to be replaced by T-5f energy saving efficient
fittings.
Meter facility to be incorporated at strategic levels to have regular checks and thereby, to take
appropriate measures, as required.
Operation log-book is to be maintained at operation level, namely, generator set, gas engine,
etc.
S ummary of above Efficiency Measures
Items Actions Remarkssults
125 KVA Gen Set to in p l ace of 250 KVA Gen Set
Load can be taken drawn by 125 KVA Gen set
-Improve the loading of Gen set - Improve its electrical parameters - Reduced the load of on attached with 2 2 50 KVA Genset
COD – Pumps Overhauling of pumps & crude oil leakage to be arrested
- Improve the efficiency - - flow rate- Flow rate is around 67% whereas actionual
at flow rate is desired to be 80%Suction & deliver valves
Replacement of valves & increasing the speed of engine # 6 to 1500 RPM
Flow rate / hour will increased
F.W pumps + Booster pumps
Over-hauling - Actual working hours will reduced
30 PSI & 10 PSI Gas Present pattern of Natural Gas to revisit
- To utilized them for internal purpose ofand fueedel to the gas grid on boosting
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ENERGY AUDIT REPORT- MAKUM OIL COLLECTING STATION
Illumination By replacing the faulty fittings or Add new light fittings
- For improving the Illumination to desired lev a e l
36 Wat FTL Replaced with TS5 energy saving fittings
- Save energy
Meter facility
&
Operation L og-book
-Energy Meter to be fitted
- Operation Log-book to be maintained
- For regular checkmonitoring
- For taking appropriate action in future
- Monitoring operating data Log-book s s pecially for Gen Set, Gas Engine etc.
INTRODUCTION TO THE REPORT
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ENERGY AUDIT REPORT- MAKUM OIL COLLECTING STATION
[3.1] M/s Oil India Limited is the oldest oil exploration activities in India, starting from the inception of
digging for crude oil in 1889. Before the independence of the country, all activities were a private
initiative, rechristened into a public-private initiated under the present nomenclature, since the
establishment of M/s Oil India Limited in 1959, in collaboration of M/s British Oil Co. Ltd. The
Government of India bought back entire stake of the private company in 1981, leading the Company
to be the largest government initiative in this endeavour in north-eastern part of the country.
[3.2] M/s Oil India Limited (OIL), at present, is engaged in exploration of crude oil and natural gas in
north-east India, along with new ventures in the states of Rajasthan, Odisha, Andhra Pradesh,
Andaman and Gujarat.
[3.3] At present, there are 189 oil wells under OIL, spread over north-eastern India, mainly catering to
the crude oil exploration. As the by-product of the initiative, natural gas with pressure range from 10
psi to over than 250 psi are also mixed with crude oil.
[3.4] Makum Oil Collecting Station (Makum OCS) is handling around 25% of total explorationproduction,
where the output of 47 oil wells are pumped intocollected and processed. The main service function
of this OCS is to separate crude oil from the natural gas and , water and sediment/sludge, which are
produced as by-products of the crude oil explorationproduction..
[3.5] Makum OCS is handling 3,280 KL/ day of crude oil (as on 31.07.14) along with huge quantity of
natural gas. The natural gas over 250 psi is directly fed to the central gas supply network grid to
Hapjan Gas Collecting Station (Hapjan GCS). A portion of gas retrieved during process at 30-40 psi
pressure level is directed to gas compression station, where the pressure is increased to 250 psi
level and fed to the central grid. Another portion of the remaining quantum is utilized in-house for
running of gas engines for power generation, gas engine driven COD pumps, heating source
generation at Emulsion- treatoer (ET) and Indirect Heater(IH) and the rest portion is just flared up.
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There is no facility to utilize remaining portion of gas below 10 psi level and is totally being
flaredwasted.
The produced formation water disposed into the water disposal wells.
3.1[3.6] The Operational Capacity of Makum OCS is shown here :
SURFACE HANDLING CAPACITY OF MAKUM OCS
Well Fluid Processing Capacity : 3600 KL/day
Crude Oil Storage Capacity : 4930 KL
Formational Water Storage Capacity : 640 KL
Water Separation Capacity : 1800 KL/day
HP (250 PSI) Gas Processing Capacity : 0.82 Metric Million Std. Cum/day (MMSCUM)
LP (30 PSI) Gas Processing Capacity : 0.32 Million Std. Cum/day(MMSCUM)Metric Million
Cum/day
LP (10 PSI) Gas Processing Capacity : 0.15 Million Std. Cum/day(MMSCUM)Metric Million
Cum/day
3.2[3.7] The single line diagram for the process is shown here :
Natural Gas above 250 psi to Grid
Gas Grid
N.G. at 30 psi
Flare
From Wells N.G. 10 psi
Mixed Crude Oil
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ID Heater G.U.-I G.U.-II E.T.
Booster Comp
Int. Cons.
E.E.T.
WaterStabilizer
Crude Tank
Pump
G.U.- Group Unit I/IIE.T. – Emulsion TreaterE.E.T. – Electrostatic Emulsion Treater
WDP
WDWell
ENERGY AUDIT REPORT- MAKUM OIL COLLECTING STATION
3.3[3.8] The mixture of crude oil-water-natural gas (Well fluid) is tested periodically to determine the
production rate of liquid and gas of a particular well. Well fluid coming from different wells to OCS
are categorized as H.P. Dry, H.P. Wet and L.P. Wet based on well head pressure and water content in
well fluid. Similar category wells connected in one manifold. From manifold, well fluid goes to
Indirect Heater for improve flow-ability and enhance better phase separation in next stage
separation. Indirect Heater (Water Bath Type) maintains the temperature below 60o C.
3.4 From Indirect heater, HP (wet) fluid goes to GU-I(W) separator where gas and liquid separated.
Separates liquid then goes to GU-II(W) separator and gas goes to central gas grid(Distribution
Network) through HPMS(High Pressure Master Separator).The pressure maintain in GU-I(W),HPMS
& GU-II(W) around 20.0 Kg/cm2 ,19.5 Kg/cm2 and 5.5 Kg/cm2 respectively. GU-II(W) is a two phase
separator, separated liquid goes to Emulsion Treater and gas escape to Low Pressure Master
Separator(LPMS-30 psi). In LPMS, back pressure maintains around 30 psi. Major portion of LPMS(30
psi) gas goes to private owned booster compressor(BOO) for boosting 30 psi gas to 250 psi and then
the boosted gas(250 psi) gas fed to central gas grid. Other portion of 30 psi gas utilize for internal
consumption of OCS. Rest portion, if any flared up. Daily production of LP gas (30 psi) is around
1,30,000 to 1,50,000 SCUM, out of which, 72,000 SCUMPD is dispatched to private owned booster
compressor(BOO). Another 9,500 SCUM per day is used in-house for generation of electricity,
running of gas engines, burning as a fuel in IH, ETs & EETs and to maintain pneumatic pressure at
pneumatic control apparatus.
3.5 From GU-II(W), wet crude goes to Emulsion Treater. In Emulsion Treater(ET), wet crude (emulsified
crude) is treated by using Thermo-Chemical process for breaking emulsion and water is separated .
Separated Oil is goes to EET(Electrostatic Emulsion Treater) , gas goes to LPMS(30 psi) and water
goes to Formation water tank. Pressure maintain in ET and EET are 3.5 Kg/cm2 ,2.8 Kg/cm2
respectively. In ET, water content in crude reduced to 0.5%. For further reduction of water content ,
the treated crude goes from ET to EET ,where Electro-static process is used and water content
comes down to 0.1%. The separated oil, water and escape gas goes to Stabilizer, Formation water
tank and LPMS (10 psi) respectively. In stabilizer back pressure maintain around 1.0 Kg/cm2 . From
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ENERGY AUDIT REPORT- MAKUM OIL COLLECTING STATION
stabilizer, oil enters to Crude oil storage tank (height: 12mtr) and gas escape to LPMS (10 psi). Water
produced thus dispose into water disposal well.
3.6 The mixture of crude oil-water-natural gas is tested periodically to determine the percentage of
each component through Test Unit. One normal operation is resumed, the direct in-flow from the
wells are categorized as H.P. Dry, H.P. Wet and L.P. Dry and channelized through separate Indirect
Heater (I.D. Heaters) to maintain the temperature below 60oC. The heating at this stage ultimately
increases the flow of the liquid. The fuel used in indirect heating is Natural gas at pressure range of
30-40 psi.
Group Unit I separates liquid and gases and gas with pressure range above 250 psi is directly fed to the
gas grid through High Pressure Master Separator (HPMS). The Group Unit II is meant for low pressure,
where gas with pressure range between 30-40 psi is separated and a portion is dispatched to the
Booster Compressor Station, outside the OCS compound. Daily production of natural gas at 30-40 psi
level is around 1,30,000 to 1,50,000 cum, out of which, 72,000 cum per day is dispatched to 3 rd. party
booster station. Another 9,500 cum per day is used in-house for generation of electricity, running of gas
engines and to maintain pneumatic pressure at nipping apparatus.
In Emulsion Treater, oil (around 95%) and crude oil are separated by thermo-chemical process inside a
vessel, where as is charge for maintenance of flame inside and extra chemical is fed from outside.
Residual water (maximum 5%) is separated from crude oil (to maintain water content of 0.2% to be sent
to the refinery). Here electro-static process is used. The back pressure from the EET is 2.8 Kg/cm2, which
is further reduced to 1 Kg/cm2 at stabilizer. 1 Kg/cm2 back pressure pushes the oil upto a height of 12
Ft.
[3.9] The capacities of G.U. vessels are 910 KL/day, that of EET is 2,000 KL/day.
[3.10] Production profile of Makum OCS as on 31.07.2014 stands as :
PRODUCTION PROFILE OF MAKUM OCS
Crude Oil Production : 2,710 KL/day
Formation Water Production : 787 KL/day
HP (250 PSI) Gas Production : 350,000 scum/day
LP (30 PSI) Gas Production : 130,000 scum/day
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ENERGY AUDIT REPORT- MAKUM OIL COLLECTING STATION
LP (10 PSI) Gas Production : 11,500 scum/day
SCOPE OF WORK4.1 Pumps :
4.1.1 Determine Hydraulic Pressure, Efficiency of Motor-Driven Pumps.
4.1.2 Evaluate the performance of the Engine Driven Pumps including the study of the pumping and
allied Systems to evaluate their operational efficiencies and feasibility of reduction of in the
energy consumption, wherever possible.
4.2 Electric Motors :
4.2.1 Study of Loading and Efficiency of Motors,
4.2.2 Performance parameters of motors, Economics of Replacement of Under-loaded and in-efficient
motors.
4.3 Air Compressors :
4.3.1 Determine FAD of air Compressor
4.3.2 Determine the compression ratio
4.3.3 Specific Power Consumption,
4.3.4 Isothermal efficiency of Air Compressor,
4.3.5 Evaluate the Utilization pattern of the compressed air, leakage in the system, feasibility for
pressure optimization.
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4.4 Study the loading / % impedance of transformers
4.5 Study the performance & Efficiency of Gas Engine
4.6 Study of Natural Gas Consumption :
4.6.1 Study the consumption of natural gas by Indirect Heaters, Emulsion Treaters, Electro-static E.T.,
Gas Turbines for power generation and pumping system, etc.
4.6.2 Calculate specific Fuel Consumption of all the equipments running in the installation,
4.6.3 Determine total Gas consumption of the Installation,
4.6.4 Determine the Energy Index of the Installation.
4.7 Area Lighting/ Shed Lighting/ Control Room Lighting :
4.7.2 Study the Illumination system at the installation and suggest measures for improvement
wherever possible
METHODOLOGY OF AUDIT
5.1 In Makum Oil Collecting Station, direct out putoutput from the wells are fed to the manifold. The
conglomeration of the input is a mixture of crude oil, mudsludge / sediment, water and natural gas.
Through the indirect heater, the mixture is heated up to 60o deg C to maintain the flow and resist
the deposition of sludge / sedimentmud inside the pipes, which would reduce the flow pressure.
5.2[5.1] Prior to the field study at Makum OCS, a detail list of the scope of work had been provided by
OIL, which became the basis of the field measurement and the parameter testing. For proper
measurement and testing, understanding of the process is a must. So the method applied during the
study are a chronological of the given below :
5.2.1[5.1.1] Understanding of the process and identification of the Units.5.2.2[5.1.2] Study of the electrical power generation and measurement of electrical parameters at site,
during day time and evening time.5.2.3[5.1.3] Measurement of other electrical equipments at the site, namely, electric motors,
transformers, lighting loads and illumination level.
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ENERGY AUDIT REPORT- MAKUM OIL COLLECTING STATION
[5.1.4] Measurement of mechanical parameters of the crude oil pumps and , formation water/ and booster pumps, namely, head, flow, RPM, etc.
5.2.4[5.1.5] Measurement of mechanical and electrical parameters of Air Compressors.[5.1.6] Study and measurement of speed, flow, etc of the gas engines at crude oil pump and power
generator.5.2.5[5.1.7] Study of the material flow for natural gas and crude oil at various points to prepare a
material balance of the OCS.5.2.6[5.1.8] Certain deficiencies were observed and documents were lacking, who deter during the
performance measurements of the following :
[5.1.9] There is no flow meter for gas flow measurement and High speed dieselelectricity at any point of
the network.
[5.1.10] The operational log-book of the Gas-alternator station has never been maintained. So, the
performances evaluation of the power generator is previous period could not be
possibleassessed.; tEven, the power curve for 24 hours basis could not be prepared. During the
field study, electrical parameters during day and evening time were measured, high highlighted
the connected electrical load through-out the day (load was mostly constant and day-time load
for 12 hours was less than evening time load for 12 hours)
5.2.7[5.1.11] A number of gas engines, connected directly with COD pumps were age-old, no operational
or maintenance manual was available.
5.2.8[5.1.12] There are two air compressors, one runs at a time. There is single unit to be catered by the
air compressor, half-an-hour, twice a day (morning and evening).
[5.1.13] Measurement of flow up to the stabilizer level could not be verified as the fluid contains crude
oil, natural gas and waterwas not a fruitful venture, as due to high rate of sedimentation of mud
inside the pipes deters and the ultra-sonic flow-meter is not able to to sense properly flow.
5.2.9[5.1.14] Few equipments could not be tested due to operational constraint.
5.3[5.2] The following Equipments were deployed during the field study :
Three Phase power Analyzer,
Single Phase Power Analyzer,
Lux Meter
Ultra-sonic flow meter,
Non-contact type Infra-red Thermometer,
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ENERGY AUDIT REPORT- MAKUM OIL COLLECTING STATION
Non-contact type Tachometer
PRESENT ENERGY SCENARIO
6.1 At present, in Makum OCS, energy is utilized in three forms :
(i) Electrical Energy, generated in gas engine-alternator combined, to run electric motors of various
sizes, illumination and small electrical gadgets,
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(ii) Mechanical Energy, generated in gas based engines to run ‘Crude Oil Delivery (COD)’ pumps;,
alternator, as well as directly by usinedg natural gas to pressurizemaintain a pneumatic controls
pressures for nipping of vessels..
(iii) Thermal EnergyThermal Energy, by using burning natural gas to develop a flame in side Indirect
Heaters and Emulsion Treaters.
[6.2] There is no electricalElectrical connection power is not drawn from the State electricity grid
network. The required electrical power required at various points equipments/insidemachines
inside the OCS is met by running gas engine driven -Aalternator set. There are two 250 KVA gas
genitor generator sets (of same rating, one runs at a time) and one 125 KVA gas-generator set.
During the day time, generally normally 125 KVA gas generator is used to cater the load but often
runs, but often, it was replaced by 250 KVA gen-set is utilized instead of 125 KVA gen-set. running.
After sun-set, when station lighting is switched onAt night, 250 KVA gen-set is utilized for the total
load. set is run. The gas supply to any of the gas-generator set is continuous through pipeline, when
natural gas with pressure 30-40 psi is directly fed to the engines. Natural gas required for the gas
engines for power generation is supplied from the 30/40 psi gas network available inside the
installation. Power is generated at 415 volt, 3 Ph, 50 Hz level, which is connected connected to the
power control centre to be fedfeed to the individual feeder. There is no metering system to
measure the gas flow at individual pointgas engines directly.
[6.3] At present, natural gas of pressure between 30-40 psi is utilized for in-house requirement. There is
no metering system to measure the gas flow at individual point directly.
[6.4] Details of energy consuming installations equipment/machineries are :
Sl Equipment Total capacity Energy Used Energy requirement
01 Indirect Heater (6 nos)
Separate for HP Dry & wet, LP wet
Natural gas is used to maintain the heat temperature of crude oil to 40o-50oC
2,700 cum/day
02 Group Unit I ( 2 nos) 1820 KL/day Practically nil N.A.
03 Group Unit II (2 nos) 1820 KL/day Practically nil N.A.
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042
Emulsion Treater (3 nos)
2730 KL/day Natural gas is used continuously to maintain the flame in the thermo-chemical process
????
053
Electro-static Emul-sion Treater (1 no)
2000 KL/ day Electricity supply is required here to maintain the voltage potential for the electro-static process
Load is fluctuating, power drawn varies from 2.73- to 4.8 KW
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Day-time load Calculation as before
65.04 KW
Illumination3 15.35 KW Nil 97% 14.89 KWTotal load during Evening Time
79.93 KW
NOTES :
1. One Booster pump runs at a time, if COD Pump #5 or 6 runs. It won’t run, if COD Pumps # 1-4 run
2. The cooling tower runs when 250 KVA Gen. Set in operation. If 125 KVA Gen set replaces 250 KVA gen set, cooling tower with total load of 7.5 KW won’t run.
3. Total single phase lighting load is 46.05 KW
Electrical Connected Load Summary :
If 250 KVA Gen Set runs If 125 KVA Gen set runs
Connected Load in Day Time 65.04 KW 60.16 KW
Connected Load in Night Time 79.93 KW 75.05 KW
STUDY OF PUMPS
[8.1] There are pumps to handle two kinds of stuffs liquids : Crude Oil and Formation Water.
8.1[8.2] There are six crude oil delivery pumps, run by gas engines, directly coupled. The details of the
Abbreviated Form : FTL : Fluorescent Tube Lamp ; IL : Incandescent Lamp ; MVL : Mercury Vapour
Lamp ; HPSV : High Pressure Sodium Vapour
13.3 In the open compound, three high masts are located with individual rated capacity of 9.6 KW
each through a number of high pressure sodium vapour lamps (12 fittings x 2 HPSV lamps/fittings x
400 watt /lamp).
13.4 Based on the lux-level measured, the observations are :
Area/Location Maximum Lux Average Lux Recommended RemarksOpen Yard 3 2 50 The lux level at every corner Walk-way 7 4 50 poor. Immediate attention is Walk-way in front of high mast
21 15.4 50 this regard is solicited. All conventional tube-light fit-
Generator Shed 23 11.5 100 tings are to be replaced by Heater Shed 26 16 50 T-5 fittings with electronicWalk-way in front of Heater/Testing
24 19.6 50 Ballast. Around 1/3 of halogen lights at high masts
Area around G.U. 18 14.8 50 non-functional, which are to Along Boundary wall
8 4.29 50 Be replaced immediately. Extra lights are to be providd
COD Pump Area 20 11 100 Along the boundary wall for security reason.
Booster Pump House
3 2 100
M/s Oil India Limited, A/c- Makum OCSM/s Petroleum Conservation Research Association, Kolkata Page 39