eprintid: 12408
rev_number: 2
eprint_status: archive
userid: 1
dir: disk0/00/01/24/08
datestamp: 2023-11-10 03:26:57
lastmod: 2023-11-10 03:26:57
status_changed: 2023-11-10 01:48:43
type: article
metadata_visibility: show
creators_name: Ahmed, A.
creators_name: Khan, T.
creators_name: Jahandad, S.
creators_name: Hakimi, M.H.
creators_name: Lashin, A.A.
creators_name: Abidin, N.S.Z.
title: Organic geochemistry indicates source-rock characteristics and hydrocarbon potential: A case study from Early Cretaceous Sembar Formation, southern Indus Basin, Pakistan
ispublished: pub
keywords: Cretaceous; geochemistry; hydrocarbon exploration; hydrocarbon generation; organic compound; shale; source rock; total organic carbon, Indus Basin; Pakistan
note: cited By 6
abstract: Shale samples from the Early Cretaceous Sembar Formation were selected from a well in the southern Indus Basin, Pakistan, and were analyzed for geochemical parameters. The study investigates the source-rock characteristics and hydrocarbon-generation potential indicated by organic richness, organic-matter type, and thermal maturity. The high values of total organic carbon (TOC) content of the Sembar shales indicate favorable source-rock characteristics. The shale samples analyzed in this study have hydrogen index (HI) values in the range 43�238 mg HC/g TOC and oxygen index (OI) values in the range 14�151 mg CO2/g TOC. Accordingly, the organic matter is mainly type III, which is consistent with high amounts of terrestrial organic matter. The dominant presence of type III kerogen suggests mainly gas generation. According to geochemical-maturity indicators, the organic matter in the analyzed Sembar shale is thermally mature, having reached an early peak-window, but commercial amounts of oil and/or gas have not yet been generated. Therefore, further petroleum exploration at depth in the southern Indus Basin, mainly for gas production, is recommended. © 2020, Saudi Society for Geosciences.
date: 2020
publisher: Springer Science and Business Media Deutschland GmbH
official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85096147334&doi=10.1007%2fs12517-020-06227-4&partnerID=40&md5=ce07c847f9d98e16ce8929d011c1d1c7
id_number: 10.1007/s12517-020-06227-4
full_text_status: none
publication: Arabian Journal of Geosciences
volume: 13
number: 23
refereed: TRUE
issn: 18667511
citation:   Ahmed, A. and Khan, T. and Jahandad, S. and Hakimi, M.H. and Lashin, A.A. and Abidin, N.S.Z.  (2020) Organic geochemistry indicates source-rock characteristics and hydrocarbon potential: A case study from Early Cretaceous Sembar Formation, southern Indus Basin, Pakistan.  Arabian Journal of Geosciences, 13 (23).   ISSN 18667511