INDUSTRIAL VISIT REPORT

06Jan.2012 to 14Jan.2012

SUBMITTED BY-

ACKNOWLEDGEMENT

This is a moment of most splendid elation for us

to record here our heartfelt thanks to Dr.

Devraju, Dr. Kedareshwarudu Dr. Pankaj

Srivastav, Miss Sukanya Chief Geologist, for their

valuable guidance to make us understand the

concepts and in making the industrial visit

successful.

I am greatly thankful to my university UPES for

arranging our industrial visit and other support

services of UPES who helped us in the trip. I also

thank my colleagues who helped me whenever I

needed.

CONTENTS

S.NO TITLE PAGE NO.1 INTRODUCTION 12 DAY 1

NAYVELI2

3 DAY 2ONGC

3

4 DAY3GALE

4

5 CONCLUSION AND RESULT 5

INTRODUCTION

We the students of B.Tech (GSE) visited three major oil/ gas and mining sector industries of Chennai namely Naveli Mines Corporation, ONGC karikal (Oil And Natural Gas Corporation Limited) and GAIL (gas authority India limited).Our visit was scheduled for eight days(06/01/2012-14/01/2012) which included four days stay and for four day’s journey.

The major purpose of our industrial visit was development of practical and professional skills in engineering through technical experience and application of theoretical knowledge, and to provide exposure for the students on practical engineering fields. Through which , students will have better understanding of engineering practice in general and sense of frequent and possible problems.

This industrial visit was part of the learning process. So, that exposure uplifts the knowledge and experience of a student.

DAY 1(08/02/2012)NAVELLI MINE CORPORATION, TAMIL NADU

Background of the organizationNeyveli Lignite Corporation Limited (NLC) is a government-owned lignite mining and power generating company in India. NLC operates the largest open-pit lignite mines in India, presently mining 24 MT of lignite and has an installed capacity of 2490 MW of electricity per year. It also supplies a large quantity of sweet water to Chennai from the artesian aquifers in the lignite mines. On 11-Apr-2011, it joined the elite group of Navratna Companies.[4] In 1956 NLC was formed as a corporate body.

Own experience:We visited Neyveli mine on the date 08/01/2012.First of all our group was welcomed by a senior geologist who told us that the lignite coal seam were discovered by resistivity method and explained us about the technology involved in the mining which is continues mining system or strip mining operations, here each lithology is given a bench mark number and the underlying layer are excavated in a step wise manner. Also the major equipments involved are bucket wheel excavators which break down lignite beds which are then transported via caterpillar mining trucks and conveyor belts.Later we were taken to a platform from where we were able to get a clear view of mine I, IA and II and the three thermal power plants.These mines have a capacity of 14 billion tonnes per year.Here we also learned about the major problems incurred which included majorly the storage of lignite as it is combustive and the solution came in form of setting power plants which converts the lignite in the mine itself for power production. The second major problem was the high pressured aquifer beds below the lignite seams and the solution to this was pumping out only that requisite amount of water that was equivalent to the recharge.(kirloskas pumps of 250 hp having 140 m head.)Also we learned that all the machinery was imported from Germany because of unavailability of iron ore in IndiaAll together it was a very good experience and enhanced are level of knowing and knowledge in the field of mining.

DAY 2(9/01/2012)

ONGC KARAIKAL, TAMIL NADU

Background of company:

Oil and Natural Gas Corporation Limited (ONGC) is an Indian state-owned oil and gas company headquartered in New Delhi, India. It is one of the largest Asia-based oil and gas exploration and production companies, and produces around 77% of India's total crude oil production (and around 30% of total demand) and around 81% of natural gas production. ONGC is one of the largest publicly traded companies by market capitalization in India and the largest India-based company measured by profits.

ONGC was founded on 14 August 1956 by the Indian state, which currently holds a 74.14% equity stake. It is involved in exploring for and exploiting hydrocarbons in 26 sedimentary basins of India, and owns and operates over 11,000 kilometres of pipelines in the country. In 2010, it was ranked 18th in the Platt’s Top 250 Global Energy Company Rankings and 413th in the Fortune Global 500.

Own experienceOn the second day of our industrial visit our group visited ONGC.In ONGC we were briefed by a geologist who showed us the core samples from Cauvery basin of size 1and 1-1/2 inch and explained what they depicted. After that we visited a rig site which was opened one to one and a half year before in 2012. Drilling was being done on specific locations in an area of around 20 sq km and there were around 20-30 workers, and the depth of the well was 4000 meter and the major source rock was yellow shale also as told by the engineer out there the major problem incurred during the drilling operation was caving the well collapsed around the depth of 3200 ft and huge cavities were formed which hindered the process of logging and the well was a dry well and there was no production going on. However the target zone was thought to be hydrocarbon bearing it turned out to be a dry because of which drilling was continued until the basement which also proved to be of no use.Though the well was a dry one but still the visit was fruitful as we came to know about the actual field scenario and the various specified instruments and working in the rig site.

DAY3(10/01/2012)GAS AUTHORITY OF INDIA LIMITED (GAIL)

Background of the company:

GAIL (India) Limited is the largest state-owned natural gas processing and distribution company headquartered in New Delhi, India. It has six segments: Transmission services of natural gas and liquefied petroleum gas (LPG), Natural gas trading, petrochemicals, LPG and Liquid hydrocarbons, GAILTEL and Others. : The company was previously known as Gas Authority of India Ltd. It is India's principal gas transmission and marketing company. It was set up by the Government of India in August 1984 to create gas sector infrastructure. GAIL began its city gas distribution in New Delhi in 1997 by setting up nine compressed natural gas (CNG) stations.

Own experience:The third day of our industrial visit was scheduled for GAIL in Gail we were addressed by a geologist. Where we were lucky that we were showed how actual data acquisition process is conducted we learned that according to basement topography and dip of the lithological layers, data acquisition planning is done. Then after planning shooting is done but, shooting cannot always be carried out as per plan because of swamps, buildings etc in the place of blast therefore suitable alterations were made which required knowledge of local geography. The shooting of charges were taking place mostly in agricultural lands, so the seismic crew had chosen time in mid of January when the kharif crop had been recently cut so that no damage would be done. The hole for placing the explosive was dug by manual drilling at a depth of meter and kg of explosive was used also as there was no noise in the area so no particular geophone pattern was required and twelve geophones in a line were used for collecting the signal this line of geophones was connected to an octave to increase the signal strength, the software used for mapping the distribution the geophones and octaves was Aries Anam and this line of octave was connected to the main line which transfers the signal to the doghouse, via special software’s and recording system data is stored in sequential manner. And post processing interpretation will not be done over here but in EandP department of GAIL.

CONCLUSION AND RESULT

All together the industrial visit was a great success which helped me and all the students to

gain practical experience in our field of study and work. The tour was a great experience

which cleared our doubts and enhanced are level of knowledge and understanding in our

specified field. The tour also provided us visual experiences that will help us throughout our

career.