Government Proposes to Develop Unconventional Sources of Gas

The Minister of State (I/C) for Petroleum & Natural Gas Shri Dharamendra Pradhan informed that the Government proposes to develop unconventional sources of gas like Coal Bed Methane (CBM), Gas Hydrates and Shale Gas. In order to develop CBM resources, the Government has awarded 33 blocks for exploration and exploitation of CBM. The prognosticated CBM resources are estimated to be of the order of 63 Trillion Cubic Feet (TCF). Out of the 33 blocks, 30 blocks have been offered through International Competitive Bidding (ICB), 2 on nomination basis and 1 through Foreign Investment Promotion Board (FIPB) route.

For the exploration and development of Gas Hydrates, the National Gas Hydrate Programme (NGHP) was formulated by Government in 1995. The first NGHP Expledition-01 was carried out in 2006, wherein coring and drilling at 21 sites in western offshore, eastern offshore and Andaman sea were done to know the occurrence of gas hydrates in offshore areas. The presence of gas hydrates has been established in Krishna-Godavari, Mahanadi and Andaman deep water basins along east coast of India.

 

The Shale gas potential in the country has been assessed based on the geo-scientific data gathered for conventional oil and gas over the years in different sedimentary basins by National Oil Companies and Private/Joint Venture Companies. The preliminary study indicates that the potential of Shale gas exists in Cambay, Gondwana, Krishna-Godavari onland, Cauvery onland, Assam-Arakan and Indo-Gangetice sedimentary basins.

The Government has, on 14.10.2013, notified the policy guidelines for exploration and exploitation of shale gas and oil by National Oil Companies (NOCs) in their onland PEL (Petroleum Exploration Lease)/ PML (Petroleum Mining Lease) blocks awarded under the nomination regimes. As per the policy, the NOCs will undertake a mandatory minimum work programme in a fixed time frame for shale gas and oil exploration and exploitation, so that there is optimum accretion and development of shale gas and oil resources. Under the first phase of assessment of shale gas and oil, exploration and exploitation, at present, 56 PEL/PML blocks (ONGC - 50, and OIL-6) have been identified by NOCs. ONGC has drilled one well where coring has been completed. In addition, ONGC has collected cores from another 7 wells.

The Government has awarded 33 blocks for exploration and exploitation of CBM under the four bidding rounds launched, so far. Out of these, 8 blocks are under development phase wherein good CBM potential have been established. The Field Development Plans (FDP) for these blocks have been approved and development activities have been carried out by the contractor.

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