geoscience.net logo
+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

Gas hydrates in India Potential and development


, : Gas hydrates in India Potential and development.

The shallow sediments along the Indian continental margin are good hosts for gas hydrates, and the methane within gas hydrates has been prognosticated as more than 15 times of India's present natural gas reserve. Production of even 1% from this natural reserve is sufficient to meet country's vast energy requirement for about a century. Hence, it was felt necessary to map the most prospective zones of gas hydrates and evaluate their energy potential along the Indian margin. First of all, we have updated the gas hydrates stability thickness map along the Indian shelf to provide the spatial and depth domains within which gas hydrates can be looked for. We have identified the bottom simulating reflectors (BSRs), the main marker for gas hydrates, in the Krishna-Godavari (KG), Mahanadi, Andaman, Kerala-Konkan, and Saurashtra regions respectively. The total organic carbon content (TOC), sediment thickness and rate of sedimentation indicate that the Cauvery and Kerala-Laccadive basins are also prospective for gas hydrates. Seismic attenuation (Q), reflection strength, instantaneous frequency and blanking have been computed to characterize the sediments containing gas hydrates and free-gas. The faulting or gas-chimneys have also been used for the identification of gas hydrates. We have developed several approaches based on seismic traveltime tomography, full-waveform inversion, amplitude versus offset (AVO) modeling and AVO attributes each coupled with rock-physics modeling, and utilized them for the quantification of gas hydrates. A large volume of multi-channel and ocean bottom seismic data have been acquired in 21 between 5 to 25 m water depths in KG and Mahanadi basins. The new data exhibit wide-spread occurrences of BSRs; reveal new prospective zones of gas hydrates; and are being modeled for the delineation of sediments hosting gas hydrates, and evaluation of their resource potential. Efforts are on to develop suitable technology for exploitation. We anticipate that free-gas lying below gas hydrate-bearing sediments can be produced economically in near future. However, it may take longer time to retrieve gas from gas hydrates.Demonstrated the potential zones of gas-hydrates along the Indian margin Applied seismic approaches for the delineation and quantification of gas-hydrates Described the status of gas-hydrates research in India and future plan.

US$19.90

DOI: 10.1016/j.gr.2012.01.007


Other references

Sehhatie Shafaie, F.; Jafarabadi, M.Asghari.; Mahalleie, M.; Malekzadeh, T.; Malekzadeh, M., 2017: The relationship between delivery mode and children's growth from birth to 6 months. Children's growth is one of the important components of health affected by various environmental factors like delivery type. This study aimed at determining the relationship between delivery mode and children's growth from birth to 6 mon...

Anonymous, 1988: Concern voiced over hepatitis b danger. Over 1,300 nurses from across the world packed the annual conference of the European Dialysis and Transplant Nurses Association last week.

Anonymous, 2004: The Cat Group policy statement 6. Cats and toxoplasmosis: what are the risks?. Journal of Feline Medicine and Surgery 6(3): Iii-Ivi

Caldwell, C.B.; Yaffe, M.J., 1990: Development of an anthropomorphic breast phantom. A new technique for producing anthropomorphic phantoms is described. Information from a patient radiograph is used to design the phantom. Optical densities from a digitized radiograph are converted to thicknesses of phantom material, with correcti...

Leslie, G.; Barrett, M.; Burchmore, R., 2003: Leishmania mexicana: promastigotes migrate through osmotic gradients. During the insect phase of the parasite lifecycle, Leishmania promastigotes move from the midgut to the anterior regions of the alimentary tract of their sandfly vector. Chemotaxis of Leishmania promastigotes towards sugars has been reported, and...

Li, Fenglan., 1996: Studies on the species of Arcoida of the Nansha Islands, Hainam Province, China. Unknown

Johnson Samuel Y.; Dadisman Shawn V.; Childs Jonathan R.; Stanley William D., 1999: Active tectonics of the Seattle Fault and central Puget Sound, Washington; implications for earthquake hazards. We use an extensive network of marine high-resolution and conventional industry seismic-reflection data to constrain the location, shallow structure, and displacement rates of the Seattle fault zone and crosscutting high-angle faults in the Puget...

Wood E.A.Jr; Chada H.L., 1969: Chemical control of the sorghum m greenbug guymon oklahoma 1968. Oklahoma Agricultural Experiment Station Progress Report 616: 1-4

Robinson, S., 1986: Midwifery training: the views of newly qualified midwives. Nurse Education Today 6(2): 49-59

Holder, K.; Montgomerie, R., 1993: Rock Ptarmigan Lagopus mutus. Birds of North America 0(51): 1-23