India has an estimated sedimentary area of 3.14 million square kilometers, comprising 26 sedimentary basins, out of which 1.35 million square kilometers area is in deep water and 1.79 million square kilometers area is onland and shallow offshore. At present 1.06 million square kilometers area is under active petroleum Exploration Licenses in 18 basins by national oil companies and Private/Joint Venture companies. A total of 35601 Sq Km area is under Mining Lease. Operations are being carried out by National and Private oil companies in 597 concessions, of which 259 are under Petroleum Exploration License (PEL) and 338 are under Mining Lease (ML)
Coalbed Methane (CBM) is natural gas contained in coal. It consists primarily of methane, the gas we use for home heating, gas fired electrical generation and industrial fuel. CBM commonly is referred to as an “unconventional” form of natural gas because it is primarily stored through adsorption to the coal itself rather than in the pore space of the rock, like most “conventional” gas. The gas is released in response to a drop in pressure in the coal.Commercial production of CBM is a proven technology and USA is the leader in CBM production in the world.
CBM policy for exploration & production of CBM was formulated by the Government in July 1997 for carrying out CBM exploration activity in the country.
Having the 3rd largest proven coal reserves and being the 4th largest coal producer in the world, India holds significant prospects for commercial recovery of CBM. Prognosticated CBM resource has been estimated to be around 4.6 TCM. A total of 26 CBM blocks and 13600 Sq Km area have been awarded in three rounds of CBM held so far.