Abstract
The Jamnagar sub-basin of Saurashtra, Gujarat is considered geologically prospective for hydrocarbons by Directorate General of Hydrocarbons (DGH), India. However the major part of the Jamnagar sub-basin is covered by Deccan Traps, hindering the exploration of Mesozoic hydrocarbon targets. In India, significant hydrocarbon finding in the stratigraphic sequence has not been established, as the major part of the Mesozoic sediments is underlying the Deccan Traps. Detection and mapping of the Mesozoic sediments below the Deccan Trap has been a long-standing complex geophysical problem facing the oil industry. The vast sheet of volcanic cover, which overlies the Mesozoic sediments acts as a geophysical shield and inhibit the effective use of conventional seismic techniques. Surface geochemical techniques based on hydrocarbon microseepage from subsurface accumulations, have potential to evaluate the prospects for petroleum exploration. In view of this, surface geochemical survey for adsorbed soil gas and microbial analysis was conducted in Jamnagar sub-basin, total 150 near surface soil samples were collected for the evaluation of hydrocarbon resource potential of the Basin. Microbial analysis revealed high bacteria counts for methane (1.32×106 cfu/gm), ethane (8.50× 105 cfu/gm), propane (6.86×105 cfu/gm) and butane oxidizing bacteria (5.70×105 cfu/gm) in soil samples of Jamnagar sub-basin. The bacterial concentration distribution maps show three distinct anomalies in the study area, indicating hydrocarbon microseepage at these places. The geochemical investigations in soil samples showed the presence of high adsorbed hydrocarbon gases concentration of methane (C1) 1 to 518 ppb and Ethane plus hydrocarbons (ΣC2+) 1 to 977 ppb respectively. Further, carrying out integrated geo-microbial and geo-chemical studies with adsorbed soil gas showed the anomalous hydrocarbon zones nearby Khandera, Haripur, and Laloi areas which could probably aid to assess the true potential of the Basin. On the basis of microbial prospecting and adsorbed soil gas studies Jamnagar sub-basin study area appears to be a warm zone for hydrocarbon prospects and needs detailed investigation with other geo-scientific methods. Integrated geophysical studies have shown that Jamnagar sub-basin of Saurashtra has significant sediment thickness below the Deccan Traps and can be considered for future hydrocarbon exploration. The corroboration of adsorbed light gaseous hydrocarbons and hydrocarbon oxidizing bacteria suggests its efficacy as one of the potential tool in surface geochemical exploration of hydrocarbons.
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References
Atlas, R.M., 1984, Petroleum microbiology. Macmillan Company, New York, 692 p.
Belt Jr., J.Q. and Rice, G.K., 2002, Application of statistical quality control measures for near surface geochemical petroleum exploration. Computational Geosciences, 28, 243–260.
Biswas, S.K., 1982, Rift basins in the western margin of India and their hydrocarbon prospects. Bulletin of the American Association of Petroleum Geologists, 66, 1497–1513.
Biswas, S.K., 1987, Regional tectonic framework, structure and evolution of the western marginal basins of India. Tectonophysics, 135, 307–327.
Biswas, S.K. and Deshpande, S.V., 1983, Geology and hydrocarbon prospect of Kutch, Saurashtra and Narmada basin. Petroleum Asia Journal, 6, 111–126.
Bose, M.K., 1972, Deccan Basalt. Lithos, 5, 131–145.
Bose, M.K., 1980, Alkaline magmatism in the Deccan Volcanic Province. Journal of the Geological Society of India, 21, 317–329.
Bokova, E.N., 1954, Oxidation of ethane and propane by certain species of Mycobacteria. Microbiologia, 23, 15–21.
Davis, J.B., 1967, Petroleum Microbiology. Elsevier, Amsterdam, 604 p.
Gevirtz, J.L., Carey, B.D., and Blanco, S.R., 1983, Surface geochemical exploration in the North Sea. Methodology with an example. In: J. Brook, (ed.), Petroleum Geochemistry and Exploration of Europe. Geological Society Special Publication, 12, 35–50.
Hanson, R.S., and Hanson, T.E., 1996, Methanotrophic bacteria. Microbiological Reviews, 60, 439–471.
Horvitz, L., 1981, Hydrocarbon prospecting after forty years. In Unconventional Methods in Exploration for Petroleum and Natural Gas 2. In: Gottleib, B.M. (ed.), Southern Methodist University Press, Texas, 93–95.
Jillman, N., 1987, Surface geochemistry enigmas. Oil and Gas Journal, 9, 87–89.
Jones, V.T. and Drozd, R.J., 1983, Predictions of oil or gas potential by near surface geochemistry. AAPG Bulletin, 67, 932–952.
Jones, V.T., Matthews, M.D., and Richers, D.M., 2000, Light hydrocarbons for petroleum and gas prospecting. In: Hale, M. (ed.), Geochemical remote sensing of the sub-surface, Handbook of Exploration Geochemistry, vol. 7. Elsevier, Amsterdam, 549 p.
Kalpana, G., Madhavi, T., Patil, D.J., Dayal, A.M., and Raju, S.V., 2010, Light gaseous hydrocarbon anomalies in the near surface soils of Proterozoic Cuddapah Basin: Implications for hydrocarbon prospects. Journal of Petroleum Science and Engineering, 73, 161–160.
Klusman, R.W., 1993, Soil Gas and Related Methods for Natural Resource Exploration. JohnWiley & Sons, Chichester, 483 p.
Kumar, B., Patil, D.J., Kalpana, G., and Vardhan, C.V., 2004, Geochemical prospecting of hydrocarbons in frontier basins of India. AAPG Search and Discovery Article, #10073.
Kuznetsov, S.I., Ivanov, M.V., and Lyalikova, N.N., 1963, Introduction to Geological Microbiology. McGraw-Hill, New York, 252 p.
Leadbetter, E.R. and Forster, J.W., 1958, Studies on some methane utilizing bacteria. Archives of Microbiology, 30, 91–118.
Mani, D., Kumar, T.S., Rasheed, M.A., Patil, D.J., Dayal, A.M., Rao, T.G., and Balaram, V., 2011, Soil Iodine Determination in Deccan Syneclise, India: Implications for Near Surface Geochemical Hydrocarbon Prospecting. Natural Resources Research, 20, 75–88.
Merh, S.S., 1995, Geology of Gujarat. Geological Society of India, Bangalore, 222 p.
Nimmi Singh., Kapoor, S., Jain, A.K., Kumar, A., Mukesh Kumar and Manisha A.J., 2003, Evaluation of hydrocarbon microseepage pattern through geomicrobial survey. In: Proceedings of Petrotech, New Delhi, pp. 455–458.
Pareja, L., 1994, Combined microbial, seismic surveys predict oil and gas occurrences in Bolivia. Oil and Gas Journal, 24, 68–70.
Pixler, B.O., 1969, Formation evaluation by analysis of hydrocarbon ratios. Journal of Petroleum Technology, 21, 665–670.
Rasheed, M.A., Veena Prasanna, M., Satish Kumar, T., Patil, D.J., and Dayal, A.M., 2008, Geo-microbial prospecting method for hydrocarbon exploration in Vengannapalli village, Cuddapah Basin, India. Current Science, 95, 361–366.
Rasheed M.A., Lakshmi M., Srinu, D., and Dayal, A.M., 2011, Bacteria as indicators for finding oil and gas reservoirs: A Case Study of Bikaner-Nagaur Basin, Rajasthan, India. Petroleum Science, 8, 264–268.
Richers, D.M. 1985, Some methods of incorporating remote sensing and surface prospecting with hydrocarbon exploration. In Surface and near surface Geochemical methods in Petroleum Explorationists, Special Publication, No.1, Denver, C1–C93.
Ronald Atlas, M. and Lawrence, C.P., 1996, Ammonium Mineral Salts medium. Hand book of Microbiological Media. CRC Press, New York, 79 p.
Satpal, Singh, O.P., Sar, D., Chatterjee, S.M., and Sawai, S., 2006, Integrated interpretation for sub-basalt imaging in Saurashtra basin, India. The Leading Edge, 25, 882–885.
Schumacher, D., 1996, Hydrocarbon-induced alteration of soils and sediments. In: Schumacher, D. and Abrams, M.A. (eds.), Hydrocarbon migration and its near-surface expression. AAPG Memoir, 66, 71–89.
Sealy, J.R., 1974, A geomicrobial method of prospecting for oil. Oil and Gas Journal, 8, 142–46.
Tedesco, S.A., 1995, Surface Geochemistry in Hydrocarbon Exploration. Chapman & Hall, New York, 206 p.
Tucker, J. and Hitzman, D., 1994, Detailed microbial surveys help to improve reservoir characterization. Oil and Gas Journal, 6, 65–69.
Wagner, M., Wagner, M., Piske, J., and Smit, R., 2002, Case Histories of microbial prospection for oil and gas. AAPG studies in Geology 48 and SEG Geophysical References Series, 11, 453–479.
Whittenbury, R., Phillips, K.C., and Wilkinson, J.G., 1970, Enrichment, isolation and some properties of methane utilizing bacteria. Journal of General Microbiology, 61, 205–218.
Zutshi, P.L., Jain, M.M., and Srivastava, H.C., 1989, Basement configuration of Kutch and Saurashtra basins. Bulletin of the Oil and Natural Gas Commission, 26, 53–62.
Zutshi, P.L., 1991, The Deccan Trap and its implication on hydrocarbon exploration in western India. Bulletin of the Oil and Natural Gas Commission, 28, 90–95.
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Rasheed, M.A., Lakshmi, M., Kalpana, M.S. et al. Geo-microbial and geochemical evidences in the near surface soils of Jamnagar sub-basin, Saurashtra, Gujarat, India: implications to hydrocarbon resource potential. Geosci J 16, 455–467 (2012). https://doi.org/10.1007/s12303-012-0038-z
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DOI: https://doi.org/10.1007/s12303-012-0038-z