Current Science

Open Access Open Access  Restricted Access Subscription Access

Hydrocarbon Generation Potential of Source Rocks in Jaisalmer Basin, Rajasthan, India


Affiliations
1 Department of Earth Sciences, Indian institute of Technology, Roorkee 247 667, India
2 Department of Applied Sciences, PEC University, Chandigarh 160 012, India
 

Geochemical and statistical analyses have been carried out for the evaluation of source rocks characteristics of Jaisalmer Basin, Rajasthan, India. The geochemical analysis includes pyrolysis data, total organic carbon, oxygen and hydrogen indices. The analysis suggests that Cretaceous source rocks are poor to fair with kerogen of types III–II and have the capability of generating gas and oil whereas the Jurassic source rocks are poor with kerogen of type III and have the capability of generating gas. The Tertiary sources of rocks however have poor potential and are immature. The Jaisalmer Basin has gas-rich petroleum system, whereas the Baisakhi–Badesir and Pariwar sources have oil generation capability. The presence of higher concentration of N2 and CO2 in the gas suggests the over-maturation and residual accumulation of N2 and CO2 in the natural gases.

Keywords

Jaisalmer Basin, Kerogen, Pyrolysis Data, Source Rock.
User
Notifications
Font Size

  • Peters, K. E., Guidelines for evaluating petroleum source rocks using programmed pyrolysis. Am. Assoc. Petrol. Geol. Bull., 1986, 70, 318–329.

  • Nady, M. M. E., Ramadan, F. S., Hammad, M. M. and Lotfy, N. M., Evaluation of organic matters, hydrocarbon potential and thermal maturity of source rocks based on geochemical and statistical methods: case study of source rocks in Ras Gharib oilfield, central Gulf of Suez, Egypt. Egypt. J. Petrol., 2015, 24, 203–211.

  • Singh, N. P., Mesozoic lithostratigraphy of the Jaisalmer Basin, Rajasthan. J. Palaeontol. Soc. India, 2006, 51(2), 1–25.

  • Dasgupta, S. K. and Chandra, M., Tectonic elements of western Rajasthan Shelf and their stratigraphy. In Proceeding of the Golden Jubilee Symposium, Geological, Mining and Metallurgical Society of India, 1978.

  • Blanford, W. T., On the physical geography of the Great Indian desert with special reference to the former exixtance of the sea in the Indus valley and on the origin and mode of the formation of the sand hills. J. Asiat. Soc. Bengal, 1876, 45(2), 86–103.

  • Oldham, R. D., Preliminary notes on the geology of North Jaisalmer. Rec. Geol. Soc. India, 1886, 19(3).

  • Mishra, P. C. and Singh, N. P., Western Rajasthan Basin, Lithostratigraphy of Indian Petroliferous Basins, Documents-II, KDMIPE, ONGC, Dehradun, 1993.

  • Tainsh, H. R., Stringer, K. C. and Azad, J., Major gas field of Western Pakistan. AAPG Bull., 1959, 43(ii), 2675–2700.

  • Hunt, J. M., Petroleum Geochemistry and Geology, Freeman, New York, 1996, 2nd edn, p. 74.

  • Waples, D. W., Geochemistry in petroleum exploration: International Human Resources Development Corporation, Boston, USA, 1985, p. 232.

  • Espitalie, J., Deroo, G. and Marquis, F., Rock–Eval pyrolysis and its application. Rev. Inst. Fr. Petrol., 1985, 72.

  • Klein, J. and Jimtgen, W., Studies in the emission of elemental nitrogen from coal of different rank and its release under geochemical conditions. Adv.Org. Geochem., 1972, 647–656.


Abstract Views: 361

PDF Views: 115




  • Hydrocarbon Generation Potential of Source Rocks in Jaisalmer Basin, Rajasthan, India

Abstract Views: 361  |  PDF Views: 115

Authors

Rajesh Pandey
Department of Earth Sciences, Indian institute of Technology, Roorkee 247 667, India
Dinesh Kumar
Department of Earth Sciences, Indian institute of Technology, Roorkee 247 667, India
A. S. Maurya
Department of Earth Sciences, Indian institute of Technology, Roorkee 247 667, India
Pooja Pandey
Department of Applied Sciences, PEC University, Chandigarh 160 012, India

Abstract


Geochemical and statistical analyses have been carried out for the evaluation of source rocks characteristics of Jaisalmer Basin, Rajasthan, India. The geochemical analysis includes pyrolysis data, total organic carbon, oxygen and hydrogen indices. The analysis suggests that Cretaceous source rocks are poor to fair with kerogen of types III–II and have the capability of generating gas and oil whereas the Jurassic source rocks are poor with kerogen of type III and have the capability of generating gas. The Tertiary sources of rocks however have poor potential and are immature. The Jaisalmer Basin has gas-rich petroleum system, whereas the Baisakhi–Badesir and Pariwar sources have oil generation capability. The presence of higher concentration of N2 and CO2 in the gas suggests the over-maturation and residual accumulation of N2 and CO2 in the natural gases.

Keywords


Jaisalmer Basin, Kerogen, Pyrolysis Data, Source Rock.

References





DOI: https://doi.org/10.18520/cs%2Fv116%2Fi5%2F822-827