Use of petrological and organic geochemical data in determining hydrocarbon generation potential of coals:miocene coals of Malatya Basin (Eastern Anatolia-Turkey)
Nazan Yalcin Erik1
Faruk Ay2
1.Department of Geological Engineering,Cumhuriyet University,58140 Sivas,Turkey2.Department of Anthropology,Cumhuriyet University,58140 Sivas,Turkey
摘要：With this study,the hydrocarbon generation potential of Miocene aged coals around Arguvan-Par(c)ikan in the northern district of Malatya province was evaluated with the aid of petrological and organic geochemical data.According to organic petrography,coal quality data,and low thermal maturity,the Arguvan-Par～ikan coals are of high-ash,high-sulfur subbituminous B/C rank.The organic fraction of the coals is mostly comprised of humic group macerals,with small percentages derived from the inertinite and liptinite groups.The mineral matter of the coals is comprised mainly of calcite and clay minerals.The total organic carbon (TOC,wt％) values of the shale and coal samples are between 2.61 wt％ and 43.02 wt％,and the hydrogen index values are between 73 and 229 mg HC/g TOC.Pyrolysis (Tmax,PI),huminite/vitrinite reflectance (Ro,％),and biomarker ratios (CPI,Pr/Ph ratio,Ts/(Ts + Tm) ratio,C32 homohopane ratio (22S/22S + 22R)and C29 ββ/(ββ + αα sterane ratio) indicate that the organic matter of the studied coals is thermally immature.When all these data are taken together,Miocene aged coals around Arguvan are suitable for hydrocarbon generation,especially gas,in terms of organic matter type (Type Ⅲ and Type Ⅱ/Ⅲ mixed),organic matter amount (＞ 10 wt％ TOC),however,low liptinitic macerals (＜ 15％-20％),low hydrogen index (＜ 200 mg HC/g TOC) and low thermal maturity values inhibit the hyrocarbon generation.
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论文发表日期：2021-12-30
在线出版日期：2025-08-15（本平台首次上网日期，不代表文献的发表时间）
页数：24( 510-533 )
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