Enhanced Geothermal System (EGS): A Review of Cambay Basins

Abstract

Geothermal energy is the heat stored in the earth's crust and it is a clean and eco-friendly energy source. India depends more on coal as it is cheaper but it causes environmental pollution so the importance of geothermal energy in India is to make a great contribution to India’s long-term energy supply and knockdown greenhouse gas emission by establishing a safe, sustainable and secure geothermal energy industries. In Gujarat state, the Cambay basin is a rich petroleum region that is located on the western margin of India. In just one zone it holds 206 billion cubic feet of gases and 8 million barrels of condensate reserves. Depending on the types of geothermal systems, geothermal wells are designed. In the Cambay basin, more than 7000 wells are drilled. A geothermal dual well system contain at least one injection and one production well to produce geothermal energy effectively. Self-discharging well, production well, etc. are the type of well which are used. An enhanced geothermal system (EGS) is an artificial reservoir and it is created where there is a hot rock but low fluid saturation or natural permeability. It offers the opportunity to access clean energy sources. This paper discusses the scenario of EGS in Cambay basins.