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Energy Efficiency

Energy saving potential in diesel electric drilling rig

Abstract

The life of oil stock in India with the present rate of consumption is not more than 21 years. The life of natural gas stock is predicted to be 38 years. India though a developing country, its consumption per dollar of GDP is as high as 0.77 kg of oil equivalent compare to developed country like Japan's 0.1 kg of oil equivalent. This indicates that there is a huge potential for conservation by efficient usage of all forms of energy including petroleum products. With this point in mind, a comprehensive energy audit of a diesel electric (ACSCR) drilling rig was undertaken. The paper presents a few of attractive energy options: optimum loading of DG sets, load management of transformers, replacement of over-sized motors by appropriately sized ones, replacement of V-belts by modern flat belts, plugging of compressed air leakage and use of time switches.



Introduction
Energy is a critical input for the growth of national economy. The energy need in India have grown exponentially due to explosion in population coupled with high rate of industrial growth. Even with huge investment, it does not appear that shortage of power & oil will be met by the planned increase in production. Hence, to meet the growing demand of energy in our country, it is essential to adopt low cost option of increasing the end use efficiency of energy resources for the same level of production. With this point in mind, a comprehensive energy audit of a diesel electric (ACSCR) drilling rig was undertaken with the following objectives.
• To carry out a detailed performance evaluation of various equipment with a view to identify thrust areas for energy conservation
• To quantify the extent of energy savings/performance improvement that can be achieved based on analysis of the measurements to be carried out/data to be collected
• To recommend various technically sound and economically viable measures to improve the...