Petroleum source rock properties of the Neogene Bhuban shales,Bengal Basin, Bangladesh

The present study evaluates the petroleum source rock generation potential of the Neogene Bhuban shales from Bangladesh. Organic geochemical and organic petrological methods were used for analyzing 11 drill core samples from 4 gas fields in the basin. Source rock potential, maceral composition, orga...

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Main Authors: Md. Farhaduzzaman, Wan Hasiah Abdullah, Md. Aminul Islam
Format: Article
Language:English
Published: Universiti Kebangsaan Malaysia 2015
Online Access:http://journalarticle.ukm.my/8635/1/12_Md._Farhaduzzaman.pdf
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author Md. Farhaduzzaman,
Wan Hasiah Abdullah,
Md. Aminul Islam,
author_facet Md. Farhaduzzaman,
Wan Hasiah Abdullah,
Md. Aminul Islam,
author_sort Md. Farhaduzzaman,
collection UKM
description The present study evaluates the petroleum source rock generation potential of the Neogene Bhuban shales from Bangladesh. Organic geochemical and organic petrological methods were used for analyzing 11 drill core samples from 4 gas fields in the basin. Source rock potential, maceral composition, organic matter abundance, biomarker distribution, thermal maturity, hydrocarbon generation and depositional environment were evaluated. Kerogen in the studied shale samples is classified mainly as Type III with lesser amounts of Type II. Vitrinite is the dominant maceral group observed in the analyzed Bhuban samples followed by liptinite and inertinite. Vitrinite reflectance, Tmax and biomarker parameters indicate the thermal maturity ranges from just pre-oil window to mid-oil window. Based on its total organic carbon (TOC), extractable organic matter (EOM) and hydrogen index (HI), the analyzed Bhuban shales are ranked as mainly poor to fair source rocks but with good gas generation potential. The dominant terrestrial environment prevailed during the deposition of the studied Bhuban shales while the condition was sub-oxic as indicated by cross-plots of pristane versus phytane and sterane versus pristane/phytane ratios.
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spelling ukm.eprints-86352016-12-14T06:47:45Z http://journalarticle.ukm.my/8635/ Petroleum source rock properties of the Neogene Bhuban shales,Bengal Basin, Bangladesh Md. Farhaduzzaman, Wan Hasiah Abdullah, Md. Aminul Islam, The present study evaluates the petroleum source rock generation potential of the Neogene Bhuban shales from Bangladesh. Organic geochemical and organic petrological methods were used for analyzing 11 drill core samples from 4 gas fields in the basin. Source rock potential, maceral composition, organic matter abundance, biomarker distribution, thermal maturity, hydrocarbon generation and depositional environment were evaluated. Kerogen in the studied shale samples is classified mainly as Type III with lesser amounts of Type II. Vitrinite is the dominant maceral group observed in the analyzed Bhuban samples followed by liptinite and inertinite. Vitrinite reflectance, Tmax and biomarker parameters indicate the thermal maturity ranges from just pre-oil window to mid-oil window. Based on its total organic carbon (TOC), extractable organic matter (EOM) and hydrogen index (HI), the analyzed Bhuban shales are ranked as mainly poor to fair source rocks but with good gas generation potential. The dominant terrestrial environment prevailed during the deposition of the studied Bhuban shales while the condition was sub-oxic as indicated by cross-plots of pristane versus phytane and sterane versus pristane/phytane ratios. Universiti Kebangsaan Malaysia 2015-04 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/8635/1/12_Md._Farhaduzzaman.pdf Md. Farhaduzzaman, and Wan Hasiah Abdullah, and Md. Aminul Islam, (2015) Petroleum source rock properties of the Neogene Bhuban shales,Bengal Basin, Bangladesh. Sains Malaysiana, 44 (4). pp. 571-579. ISSN 0126-6039 http://www.ukm.my/jsm/malay_journals/jilid44bil4_2015/KandunganJilid44Bil4_2015.html
spellingShingle Md. Farhaduzzaman,
Wan Hasiah Abdullah,
Md. Aminul Islam,
Petroleum source rock properties of the Neogene Bhuban shales,Bengal Basin, Bangladesh
title Petroleum source rock properties of the Neogene Bhuban shales,Bengal Basin, Bangladesh
title_full Petroleum source rock properties of the Neogene Bhuban shales,Bengal Basin, Bangladesh
title_fullStr Petroleum source rock properties of the Neogene Bhuban shales,Bengal Basin, Bangladesh
title_full_unstemmed Petroleum source rock properties of the Neogene Bhuban shales,Bengal Basin, Bangladesh
title_short Petroleum source rock properties of the Neogene Bhuban shales,Bengal Basin, Bangladesh
title_sort petroleum source rock properties of the neogene bhuban shales bengal basin bangladesh
url http://journalarticle.ukm.my/8635/1/12_Md._Farhaduzzaman.pdf
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AT mdaminulislam petroleumsourcerockpropertiesoftheneogenebhubanshalesbengalbasinbangladesh