国家冰川冻土沙漠科学数据中心

元数据

名称	Assessment of oil potential for humic coals on the basic of flash Py-GC, Rock-Eval and confined pyrolysis experiments (基于Py-GC、Rock-Eval和封闭体系热模拟实验评估腐殖质煤的生油潜力)
科技资源标识	CSTR:11738.14.NCDC.XDA14.PP5699.2024
DOI	10.1016/j.orggeochem.2020.104097
数据共享方式	开放下载
摘要	Confined pyrolysis experiments (gold capsules), quantitative flash pyrolysis-gas chromatography (Py-GC) and Rock-Eval analysis were performed on ten coals from the Junggar Basin and seven coals from the Kuqa Depression, Tarim Basin, northwestern China. The maximum yields of liquid components in confined pyrolysis experimnets (MCPRC8+), which reflect oil potentials, have close correlations with the yields of n-alkanes + n-alkenes (FPRn-C7+) in flash Py-GC, but have poor correlations with Rock-Eval QI ((S1 + S2)/TOC) values. Thus, oil potentials of coals can be better predicted on the basis of FPRn-C7+ yields from flash Py-GC analysis. Coals with FPRn-C7+ yield >10.4 mg/g TOC can generate MCPRC8+ yield > 22.5 mg/g TOC or oil yield > 40 mg/g TOC in confined pyrolysis or in natural systems and are effective oil source rocks. Although both Py-GC and Rock-Eval are open systems, the yields of total liquid components (FPRC7+) obtained from flash Py-GC have poor correlations with, and are substantially lower than, Rock-Eval QI. In contrast, FPRC7+ values have much better correlations with oil potentials (MCPRC8+). Coals with higher oil potentials (MCPRC8+) generate higher amounts of liquid components detected in flash Py-GC (FPRC7+) than those with lower oil potentials but similar Rock-Eval QI. The correlations for parameters with gas to oil ratios (GOR) in confined pyrolysis are increasingly better in the sequence of Rock-Eval QI, H/C atomic ratios, MCPRC8+, FPRn-C7+ and FPRn-C7+/RC7+ ratios. GOR of petroleum generated from coals within oil generative window can be reasonably predicted on the basis of FPRn-C7+/RC7+ ratio from flash Py-GC analysis.
学科分类	170.50
关键词	Quantitative flash Py-GCConfined pyrolysisOil potentialsGas oil ratiosHumic coals
作者	Lifei Zeng
数据量	3.9 MiB
论文类型：	journal
论文网址：	https://doi.org/10.1016/j.orggeochem.2020.104097
期刊名称：	Organic Geochemistry
出版时间：	2020-10-01

引用和标注

数据引用

Lifei Zeng. Assessment of oil potential for humic coals on the basic of flash Py-GC, Rock-Eval and confined pyrolysis experiments (基于Py-GC、Rock-Eval和封闭体系热模拟实验评估腐殖质煤的生油潜力). 国家冰川冻土沙漠科学数据中心(http://www.ncdc.ac.cn), 2024. https://cstr.cn/CSTR:11738.14.NCDC.XDA14.PP5699.2024.

许可协议

本作品采用知识共享署名 4.0 国际许可协议进行许可。

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项目信息详情

项目名称：深层油气形成与分布预测
项目编号：XDA14010000
项目类别：中国科学院战略性先导科技专项（A类）