Adsorbed and Free Oil in Lacustrine Nanoporous Shale: A Theoretical Model and a Case Study
Adsorbed and Free Oil in Lacustrine Nanoporous Shale: A Theoretical Model and a Case Study
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湖相纳米多孔页岩中的吸附油和游离油：理论模型和案例研究
DOI：
10.1021/acs.energyfuels.8b02953
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发表时间：
2018-10
期刊：
影响因子：
5.3
通讯作者：
Xuebo Zhao
中科院分区：
文献类型：
--
作者：
Junqian Li;Shuangfang Lu;Jianchao Cai;Pengfei Zhang;Haitao Xue;Xuebo Zhao
游离油而非吸附油，可能是使用现有技术在致密纳米孔隙页岩储层中最具可采性的成分。到目前为止，多种地球化学参数，主要与……的滞留、运移和排出有关（句子不完整）
Free oil, rather than adsorbed oil, is potentially the most producible component of tight nanoporous shale reservoirs using existing technologies. To date, a variety of geochemical parameters, mainly related to the retention, migration, and expulsion of generated oil, have been developed to estimate the free oil in shale. However, there is still a lack of theoretical models accounting for the mechanism of oil accumulation in nanoporous shale, which would help evaluate adsorbed and free oil. In this paper, models were developed to estimate the amount of oil confined in nanoporous shale and that is mainly in adsorbed and free states to describe the characteristics of oil accumulation. The models were established for an adsorption saturation situation, and simultaneously considered the multilayer adsorption of an oil mixture and the microstructure of the shale pore system (including pore-throat-fracture). As a case study, adsorbed and free oil in lacustrine shales with different lithofacies, obtained from th...
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