Abstract
Out of the numerous potential petroleum source rocks, present in the Lower Indus Basin, Sembar Formation is the most promising rock unit. One-dimensional maturity modeling of source rocks in Lower Indus Basin is conducted to find out the lateral and vertical extents of maturity levels of Sembar Formation. This study is also aimed to infer the extent of petroleum generation in the region. The study is based on one-dimensional basin modeling (maturity modeling) of 22 main exploration wells, drilled in the region. Stratigraphic input to model includes thickness, formation tops, ages of deposition and lithology, age and amounts of erosion, and ages of non-depositional events. Isopach map of Sembar Formation demonstrates the lateral and vertical extents of the formation, whereas temperature and vitrinite reflectance (R o) contour maps indicate its maturity levels in different parts of the study area. It is inferred that the thickness of the overlying rock units (overburden) control the maturity level of the Sembar Formation. It may be noticed that the findings of this study are fully in conformity with the ground realities of the Lower Indus Basin. Discovery patterns and the lateral distribution of various types of hydrocarbons (such as oil, condensate, and dry gas) in the region coincide with the modeling results of the study, as can be seen from the burial history diagrams of the 12 wells. The study shows that Sembar Formation is mature enough to be considered as conventional petroleum source rock or can be exploit as unconventional shale gas/oil source.
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References
Ahmad N, Spadini G, Palekar A, Subhani MA (2007) Porosity prediction using 3D seismic inversion Kadanwari Gas Field, Pakistan. Pak J Hydrocarb Res 17:95–102
Ahmad N, Mateen J, Shehzad K, Mehmood N, Arif F (2011) Shale gas potential of Lower Cretaceous Sembar Formation in Middle and Lower Indus Basin, Pakistan. Assoc Pet Geol/Soc Pet Explor-Ann Tech Confer 235–252
Ahmed R, Ali SM (1991) Tectonic and structural development of the eastern part of Kirthar Fold Belt and its hydrocarbon prospects. Pak J Hydrocarb Res 3(2):19–31
Ahmed S, Ashten DG (1982) The Kheskeli oil field. PIP Seminar on Petroleum Exploration in Pakistan, Karachi
Ahmed N, Chaudhry S (2002) Kadanwari Gas Field, Pakistan: a disappointment turns into an attractive development opportunity. Pet Geosci 8:307–316
Bender FK, Raza HA (1995) Geology of Pakistan. Gebruder Borntraeger, Berlin 1:87–93
Biswas SK, Deshpande SV (1983) Geology and hydrocarbon prospects of Kutch, Saurashtra, and Narmada basins. Pet Asia J 6:111–126
Burland JB (1990) On the compressibility and shear strength of natural clays. Geotech 40:329–378
Carman PC (1956) Flow of gases through porous media. Academic, New York City
Fatmi AN (1977) Mesozoic. In: Shah SMI (ed) Stratigraphy of Pakistan, vol 12. Geol Surv of Pak, Quetta, pp 29–56
Haq BU, Hardenbol J, Vail PR (1987) Chronology of fluctuating sea-levels since the Triassic. Sci 237:1156–1166
Hasany ST, Ahmed N, Baig MO (2007) Identification of unconventional source and reservoir rocks of early Jurassic age, integrated with basin modeling and exploration constraints in the northern Kirthar Range. Pakistan Assoc Pet Geol/Soc Pet Explor-Ann Tech Confer: 115–176
Hedley R, Warburton J, Smewing J (2005) Sequence stratigraphy and tectonics in the Kirthar Fold Belt. Pakistan. Assoc Pet Geol/Soc Pet Explor-Ann Tech Confer, Islamabad, pp 61–72
Iqbal MWA, Shah SMI (1980) A guide to the stratigraphy of Pakistan. Geological Survey of Pakistan Record 53:34
Kadri IB (1993) Cretaceous source rocks in Pakistan. AAPG/SVG international conference and exhibition, Caracus, Venezuela
Kadri IB (1995) Petroleum geology of Pakistan. Pak Pet Ltd, Karachi 1:35–108
Kazmi AH, Jan MQ (1997) Geology and tectonics of Pakistan. Graphic Publishers, Karachi
Kazmi AH, Rana A (1982) Tectonic map of Pakistan, at a scale of 1:200000. Geological Survey of Pakistan, Quetta
Kemal A, Balkwill HR, Stoakes FA (1992) Indus Basin hydrocarbon plays. In: Ahmed G, Kemal A, Zaman ASH, Humayon M (eds) New directions and strategies for accelerating petroleum exploration and production in Pakistan. Proceedings of an international petroleum seminar, Ministry of Petroleum and Natural Resources, 76–105, Islamabad
Khan MA, Raza HA (1986) The role of geothermal gradients in hydrocarbon exploration in Pakistan. J Pet Geol 9(3):245–258
Khan AS, Kelling G, Umar M, Kassi AM (2002) Depositional environments and reservoir assessment of late cretaceous sandstones in the south central Kirthar Fold Belt, Pakistan. J Pet Geol 25:373–406
Nazir A, Fazeelat T, Asif M (2012) The geochemical characterization of Sediments from Early Cretaceous Sembar Formation. Pet Sci and Tech 30(23):2460–2470
Passey QR, Creaney S, Kulla JB, Moretti FJ, Stroud JD (1990) Practical model for organic richness from porosity and resistivity logs. AAPG Bulliten 74:1777–1794
Passey QR, Bohacs WL, Kiimentidis ER, Sinah S (2010) From oil prone source rock to gas producing shale reservoir- Geologic and petrophysical characterization of unconventional shale gas reservoir. International Oil and Gas Conference and Exhibition in China, 8-10 June, Beijing. Soc Pet Eng. doi:10.2118/131350-MS
Quadri VN, Quadri SMGJ (1996) Anatomy of success in oil and gas exploration in Pakistan 1915-94. Oil & Gas J 94(20)
Raza HA, Ali SM, Ahmed R (1990) Petroleum geology of Kirthar Sub-basin and part of the Kutch Basin, Pakistan. Pak J Hydrocarb R 2(1):29–73
Riaz A, Ali SM (1991) Tectonic and structural development of the eastern part of Kirthar Fold Belt and its hydrocarbon prospects. Pak J Hydrocarb R 3(2):19–31
Shah SMI (2009) Stratigraphy of Pakistan. Geol Surv Pak Meml 22:186–191
Wandrey CJ, Law BE, Shah HA (2004) Sembar Goru/Ghazij composite total petroleum system, Indus and Sulaiman-Kirthar geologic provinces Pakistan and India. In: Wandrey CJ (ed). Petroleum systems and related geologic studies in region 8, South Asia. U.S. Geological Survey Bulletin, 2208-C, p 23
Williams MD (1959) Stratigraphy of the Lower Indus Basin, west Pakistan. Progress of 5th World Petroleum Congress 19:377–391
Yang Y, Alpin AC (2004) Definition and practical application of mudstone porosity-effective stress relationships. Pet Geosci 10:153–162
Acknowledgment
We greatly acknowledge the Plate River Inc., Bouldar, CO, USA, for providing their software BasinMod-2012 for this research work and National Centre of Excellence in Geology (NCEG) University of Peshawar for funding this project. We give special thanks to Mr. Shahid Waheed from NCEG, University of Peshawar, for providing Information Technology (IT) assistance during the research.
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Appendix 1
Appendix 2
Buzdar South Deep-01
Kandra-01
Khairpur-02
Mirpur Bataro-01
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Qayyum, F., Hanif, M., Mujtaba, M. et al. Evaluation of source rocks using one dimensional maturity modeling in Lower Indus Basin, Pakistan. Arab J Geosci 9, 252 (2016). https://doi.org/10.1007/s12517-015-2244-2
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DOI: https://doi.org/10.1007/s12517-015-2244-2