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Chennai, India

The Indian Maritime University is a Central University, that was established by an Act of the Indian Parliament namely the Indian Maritime University Act 2008, on 14 November 2008. It is the only university in the country imparting education in the maritime field. It has an All- India jurisdiction and the headquarters is at Chennai. It has campuses at Chennai, Kolkata, Mumbai, Visakhapatnam, Cochin and Kandla Port.Vice Chancellor of the University is Shri. Ashok Vardhan Shetty, IAS.The following existing seven government maritime Training and Research Institutes were merged with IMU: Marine Engineering and Research Institute, Kolkata Marine Engineering and Research Institute, Mumbai Lal Bahadur Shastri College of Advanced Maritime Studies and Research, Mumbai T.S. Chanakya, Mumbai National Maritime Academy, Chennai Indian Institute of Port Management, Kolkata Indian Maritime University - Visakhapatnam Campus, ↑ ↑ ↑ Wikipedia.

Sharma R.,Indian Maritime University | Baxter C.,University of Rhode Island
Geotechnical Special Publication | Year: 2014

Shear strength is a critical parameter in evaluating the sanding potential of weakly cemented sands in oil-bearing formations. The current state-of-the-practice is to use empirical correlations (e.g., relating unconfined compressive strength to velocity logs) developed almost entirely for high-strength rocks that grossly overestimate the strength of weakly cemented sands. The objective of this study was to develop a methodology for estimating the strength of weakly cemented sands from commonly measured geophysical logs. An extensive laboratory testing program was first performed on a simulated weakly cemented sand from an oil well. An empirical model was developed that links porosity, horizontal effective stress, and the stresses at failure to synthetic compressional and shear wave velocities calculated using a modified Biot-Gassmann theory. A procedure was then established to infer unconfined compressive strength (qu), real cohesion (c'r) and tangential friction angle (j't) from the estimated stresses at failure. The model and the procedure were then applied to wireline log data from an oil-bearing formation, and there was reasonable agreement between estimated and measured values of strength. This methodology has the potential to estimate strength parameters of weakly cemented oil bearing sand directly from density/porosity logs and compression wave velocity logs. © 2014 American Society of Civil Engineers. Source

Rahate R.S.,Indian Maritime University
Society of Petroleum Engineers - SPE Oil and Gas India Conference and Exhibition | Year: 2015

The paper relates to Marine Support systems for offshore pipeline terminals and production facilities. The contents of the paper are in three parts as under: PART -A Mid life modifications of Offshore supply vessel (OSV) to task specific vessels PART -B Economics of replacement of older Single Buoy Moorings (SBM's) by new virtually maintenance free SBM's PART - C Dynamic Positioning (DP), and the human factor aspect in prevention of offshore accidents. Marine floaters such as OSV's, SBM's and Floating Oil Storage and Off-take (FPSO) in the offshore Oil & Gas sector, are built for an economic life of 20 to 25 years. While the hull and machinery remain fit for purpose, for the entire economic life, the rapidly changing E & P technology and operational needs at times makes the vessels originally designed utility redundant. The operational and economic benefits of mid life modifications / conversions of OSV's for gainful utility over the entire economic life are brought out in a case study of converting a general duty OSV into a task specific Offshore Terminal support Vessel. The study describes the methodology and approach for conversion / modifications and highlights how a single modified OSV can perform duties of tanker mooring assistance, floating hose handling, testing and replacement, SBM and subsea hose inspection & repair and fire fighting support. By focusing on task specific needs, the use of multiple specialized vessels can be avoided, thereby saving hiring and mobilizing expenses. It also avoids the dependence of external support which may be restricted or unavailable is some areas due political or other reasons of conflict. Prematurely retiring still useable old technology assets by new technology enabled assets, provides cost effective and positive gains and justifies early equipment replacement. Switch over to new technology enabled SBM's provides for lower life cycle maintenance cost and virtually no operational down time for over 25 years. A case study of operational and economic benefits of replacing a still useable Turntable SBM by a Turret type SBM is presented to high light the cost effectiveness and other advantages of new technology and methods During the early days of offshore oil field development, the OSV's were operated and maneuvered using the practical ship handling skills of the Master/ Captain. The handling skills varied from person to person and were prone to accidents due to the human factor. The use of D P vessels provided a wider safety umbrella while operating in close vicinity of Offshore Installations; however they could not be a total solution to the human factor. A case study regarding an OSV drift incident while on duty station at a Floating Production & Storage and off-take (FPSO) is presented. The incident highlights the element of human factor along with some Marine operational corrective recommendations. Copyright 2015, Society of Petroleum Engineers. Source

Deb N.C.,Queens University of Belfast | Deb N.C.,Indian Maritime University | Hibbert A.,Queens University of Belfast
Astronomy and Astrophysics | Year: 2014

Aims. In a recent measurement, Meléndez & Barbuy (2009, A&A, 497, 611) report accurate log gf values for 142 important astrophysical lines with wavelengths in the range 4000 Å to 8000 Å. Their results include both solar and laboratory measurements. In this paper, we describe a theoretical study of these lines. Methods. The CIV3 structure codes, combined with our "fine-tuning" extrapolation process, are used to undertake a large-scale CI calculation involving the lowest 262 fine-structure levels belonging to the 3d64s, 3d7, 3d54s2, 3d64p, and 3d54s4p configurations. Results. We find that many of the 142 transitions are very weak intercombination lines. Other transitions are weak because the dominant configurations in the two levels differ by two orbitals. Conclusions. The comparison between our log gf values and the experimental values generally shows good agreement for most of these transitions, with our theoretical values agreeing slightly more closely with the solar than with the laboratory measurements. A detailed analysis of the small number of transitions for which the agreement between theory and experiment is not as good shows that such disagreements largely arise from severe cancellation due to CI mixing. © 2013 ESO. Source

Guha S.,Indian Maritime University
RINA, Royal Institution of Naval Architects - Education and Professional Development of Engineers in the Maritime Industry, Papers | Year: 2014

This paper is based on some proposed modifications in the existing curricula of naval architecture for undergraduates followed unanimously in the institutes all over India. The primary factor initiating the change is the need for getting more and more industrialized, and from another perspective too students, from the technical field ought to serve the industry in future. Naval architecture is a branch of engineering which is entirely different from the conventional core branches, so institutes should be responsible for developing or modifying the academic curricula so that it benefits the students in this particular field. There is always a deficit in employment and adding to that there are transient recessions in the shipping industry. These factors should not inhibit fresh talented naval architects from getting employed. The major fields in maritime sector are marine engineering, offshore engineering, dredging-harbouring and ship design. In relation to these employments are mainly found in shipyards, shipping companies, ports etc .So if there are graduate and post graduate courses specifically in these fields, it would not be problem to look for employments for e.g. B. Tech in marine engineering, B. Tech in naval architecture or dredging and harbouring .Previously it was a trend to divert to marine sector after doing graduate in core engineering branches but now with awareness in this field institutes are offering the above mentioned courses and students are also showing interest in taking up these courses. Now, the institutes should mould their curriculum in such a way that students after passing out become well-built professionals to be readily accepted in the marine sector. The institutes should have-• Compulsory training courses in marine companies, shipyards and ports for all students along with proper facilities and stipends. But it should be initiative of the institute • In corporate sectors managerial posts are designated to a graduate employee from an engineering background so institutes should have compulsory management courses in the syllabi. Workshop technological labs with welding equipment, lathe machines should be there for training students. • Facilities for students to construct small scale models. • Compulsory software trainings to get employments in marine design sectors. • Facilities for free visit to shipyards and ports. This in brief the basic initiatives or modifications the institutions should make in their academic curricula to befit industrial requisites. Source

Sharma R.,Indian Institute of Technology Madras | Kim T.-W.,Seoul National University | Sha O.P.,Indian Institute of Technology Kharagpur | Misra S.C.,Indian Maritime University
International Journal of Naval Architecture and Ocean Engineering | Year: 2010

Availability of economic and efficient energy resources is crucial to a nation's development. Because of their low cost and advancement in drilling and exploration technologies, oil and gas based energy systems are the most widely used energy source throughout the world. The inexpensive oil and gas based energy systems are used for everything, i.e., from transportation of goods and people to the harvesting of crops for food. As the energy demand continues to rise, there is strong need for inexpensive energy solutions. An offshore platform is a large structure that is used to house workers and machinery needed to drill wells in the ocean bed, extract oil and/or natural gas, process the produced fluids, and ship or pipe them to shore. Depending on the circumstances, the offshore platform can be fixed (to the ocean floor) or can consist of an artificial island or can float. Semi-submersibles are used for various purposes in offshore and marine engineering, e.g. crane vessels, drilling vessels, tourist vessels, production platforms and accommodation facilities, etc. The challenges of deepwater drilling have further motivated the researchers to design optimum choices for semi-submersibles for a chosen operating depth. In our series of eight papers, we discuss the design and production aspects of all the types of offshore platforms. In the present part I, we present an introduction and critical analysis of semi-submersibles. © SNAK, 2010. Source

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