DOI: 10.1007/s00531-012-0798-8
论文题名: Liquid hydrocarbon generation potential from Tertiary Nyalau Formation coals in the onshore Sarawak, Eastern Malaysia
作者: Hakimi M.H. ; Abdullah W.H.
刊名: International Journal of Earth Sciences
出版年: 2013
卷: 102, 期: 1 起始页码: 333
结束页码: 348
语种: 英语
英文关键词: Depositional environment
; Eastern Malaysia
; Hydrocarbon potential
; Organic geochemistry
; Tertiary coals
Scopus关键词: biomarker
; coal
; depositional environment
; hydrocarbon exploration
; hydrocarbon generation
; hydrocarbon reservoir
; kerogen
; maceral
; organic carbon
; oxic conditions
; parameterization
; Tertiary
; vitrinite reflectance
; East Malaysia
; Malaysia
; Sarawak
英文摘要: Tertiary coals exposed in the north-central part of onshore Sarawak are evaluated, and their depositional environments are interpreted. Total organic carbon contents (TOC) of the coals range from 58.1 to 80.9 wt. % and yield hydrogen index values ranging from 282 to 510 mg HC/g TOC with low oxygen index values, consistent with Type II and mixed Type II-III kerogens. The coal samples have vitrinite reflectance values in the range of 0.47-0.67 Ro %, indicating immature to early mature (initial oil window). Tmax values range from 428 to 436 °C, which are good in agreement with vitrinite reflectance data. The Tertiary coals are humic and generally dominated by vitrinite, with significant amounts of liptinite and low amounts of inertinite macerals. Good liquid hydrocarbons generation potential can be expected from the coals with rich liptinitic content (>35 %). This is supported by their high hydrogen index of up to 300 mg HC/g TOC and Py-GC (S2) pyrograms with n-alkane/alkene doublets extending beyond C30. The Tertiary coals are characterised by dominant odd carbon numbered n-alkanes (n-C23 to n-C33), high Pr/Ph ratio (6-8), high Tm/Ts ratio (8-16), and predominant regular sterane C29. All biomarkers parameters clearly indicate that the organic matter was derived from terrestrial inputs and the deposited under oxic condition. © 2012 Springer-Verlag. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84872346701&doi=10.1007%2fs00531-012-0798-8&partnerID=40&md5=a4dfa548ffa97a880bc85b5a98219390
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/70594
Appears in Collections: 影响、适应和脆弱性 气候减缓与适应
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作者单位: Department of Geology, University of Malaya, 50603 Kuala Lumpur, Malaysia; Geology Department, Taiz University, 6803 Taiz, Yemen
Recommended Citation:
Hakimi M.H.,Abdullah W.H.. Liquid hydrocarbon generation potential from Tertiary Nyalau Formation coals in the onshore Sarawak, Eastern Malaysia[J]. International Journal of Earth Sciences,2013-01-01,102(1)