论文成果

Hydrocarbon evaporative loss evaluation of lacustrine shale oil based on mass balance method: Permian Lucaogou Formation in Jimusaer Depression, Junggar Basin

摘要:Hydrocarbon evaporative loss evaluation is important for shale oil resource assessment. We propose a mass balance model to evaluate the hydrocarbon evaporative loss (S1-loss) in this study. The proposed method is applied to a large Rock-Eval pyrolysis dataset on source rock samples from the Lucaogou Formation in the Jimusaer Depression of the Junggar Basin, NW China, as a case study to evaluate the S1-loss. The results indicate that the S1-losscan range from 0.12 to 7.25 mg/g Rock, corresponding to 11%–89% loss of the generated hydrocarbons (S1-loss/(S1+S1-loss)) due to evaporation before lab analysis. It appears that when Ro ≤ 1.3%, S1-lossand S1-loss/TOC decreases gradually with increasing Ro, likely corresponding to increasing oil density as results of heterogeneous source rock compositions and increased accommodation space via the creation of organic pores of large specific surface for heavy and large hydrocarbon molecules in oil window. When Ro > 1.3%, S1-loss/TOC begins to increase with increasing Ro as more oil crack to gaseous and light hydrocarbons that are more susceptible to evaporative loss. In the case of similar Ro, the relative S1-loss/TOC varies little among the samples but the absolute S1-lossamount increases with increasing TOC. Restricted by regional geological conditions in this study, we focused on the S1-lossfor lacustrine type I kerogen only, and quantification of evaporative loss for other kerogen types remains a subject for further study.
© 2018 Elsevier Ltd

ISSN号:0264-8172

卷、期、页:v 91,p422-431

发表日期:2018-03-01

影响因子:2.888000

期刊分区(SCI为中科院分区):二区

收录情况:SCI(科学引文索引印刷版),ESI(基本科学指标数据库),EI(工程索引),SCIE(科学引文索引网络版)

发表期刊名称:Marine and Petroleum Geology

参与作者:Chen, Zhuoheng,Jiang, Chunqing

通讯作者:Pang, Hong

第一作者:陈君青,庞雄奇

论文类型:期刊论文

论文概要:陈君青,庞雄奇,Pang, Hong,Chen, Zhuoheng,Jiang, Chunqing,Hydrocarbon evaporative loss evaluation of lacustrine shale oil based on mass balance method: Permian Lucaogou Formation in Jimusaer Depression, Junggar Basin,Marine and Petroleum Geology,2018,v 91,p422-431

论文题目:Hydrocarbon evaporative loss evaluation of lacustrine shale oil based on mass balance method: Permian Lucaogou Formation in Jimusaer Depression, Junggar Basin