This document summarizes a seminar presentation about Oil and Natural Gas Corporation Limited (ONGC). [1] ONGC is India's largest crude oil and natural gas company, producing 69% of India's crude oil and 62% of its natural gas. It was established in 1956 and is headquartered in Dehradun, India. [2] The presentation covered an overview of ONGC, including its operations, maintenance processes, fault analysis, oil testing, welding transformers, and instruments used. [3] It concluded with discussing a visit to an ONGC rig, thanking those involved for the learning experience, and highlighting what was learned about the complex operations involved in oil and gas

1. College of engineering and technology, Bikaner
Seminar presentation on
OILAND NATURAL GAS CORPORATION LIMITED
Submitted To: Submitted By:
Mr. Vikas Bhalla Palak Jha
Assistant Professor 13E1CTEEF4XP040

2. Contents :
• Introduction to company
• Overview of company
• Maintenance
• Fault analysis
• Oil test
• Welding transformer
• Instruments used
• Visit to rig

3. ONGC
TYPE PUBLIC SECTOR UNDERTAKING
INDUSTRY OIL AND GAS
FOUNDED 14 AUGUST 1956
HEADQUARTERS TELBHAVAN,DEHRADUN, UTTARAKHAND,
INDIA.
KEY PEOPLE DINESH KUMAR SARRAF(CHAIRMAN)
PRODUCTS PETROLEUM, NATURAL GAS, AND OTHER
PETROCHEMICALS
OWNER GOVERNMENT OF INDIA

4. OVERVIEW OF COMPANY
 ONGC is an Indian multinational oil
and gas company .
 It produces around 69% of India’s
crude oil (equivalent to around 30%
of the country’s total demand) and
around 62% of its natural gas.
 It is ranked 17th among top 250 Global
Energy Companies.
 The crude oil is the raw material used
by downstream companies like IOCL,
BPCL, HPCL to produce Petroleum
products like Petrol, Diesel, Kerosene,
Naphtha, Cooking gas-LPG.At Ahmedabad asset,
Sabarmati

5. Under training(workshop):-
 Maintenance
A combinations of any actions carried out to retain an item in
or restore it to an acceptable condition is called maintenance.
• Maintenance management: It is the art of getting things
done through people to maintain & enhance the useful
service life of equipment at acceptable condition with
minimum cost.
• Types of maintenance:
1. Breakdown maintenance
2. Preventive maintenance
3. Corrective maintenance
4. Maintenance prevention

6. What they first check :
Send to electrical
workshop
Stator winding short circuit,
broken rotor bars , bearing
jam, circuit failure etc
Fault type
Electrical
Send to mechanical
workshop
Shaft misalignment, rotor
eccentricity, bearing faults
etc
Fault type
mechanical

7. Oil test:
• Oil used for lubrication &
cooling purpose
• It should be tested.
• in range of 0 to 10 kv
• in range of 10 to 40kv
• Further process
•Applications

8. welding transformer
• Why it is called as welding transformer ?
• Types of it
• Bare footed working

9. Instruments used:
 Luxmeter
 Tachometer
Clamp meter
 Timer
 Tester

10. Visit to rig:
• 24 hours working
• Engineers required:
Mechanical
Electrical
Civil
And many other branches
• Rigs established for 6 months
( may stretched for 1 year)
•For extraction of crude oil and
natural gas
•Rigs locators are used

11. 1. Crown block
2. Hoist line
3. Drilling line
4. Monkey board
5. Travelling
block
6. Top drive
7. Mast
8. Drill pipe
9. Doghouse
10. Blowout
preventer
11. Water tank
12. Electric cable
tray
13. Engine
generator set
14. Fuel tanks
15. Electric control
house
16. Mud pump
17. Bulk mud
components
storage
18. Mud pits
19. Reserve pits
20. Mud gas
separator
21. Shale shaker
22. Choke
manifold
23. pipe ramp
24. Pipe racks
25. Accumulator

12. Special thanks to Training and Placement
section CET, Bikaner .
 I would like to thank H.O.D. Sir of my department, Mr.
Vikas Bhalla sir .
 I express my gratitude to Mr. H.S. Sehgal (chief electrical
engineer) & Mr. A.B. Dave Sir, I am very thankful to
employees of ONGC. They guide me step by step with
supportive nature.
 I have learnt so many things and feel blessed to get that
opportunity.
It was very good experience to work with experienced
engineers and my colleagues .