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wanghaitao2193铁杆木虫 (正式写手)
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[求助]
请帮忙查询论文是否被SCI收录？
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请帮忙查询论文是否被SCI收录？谢谢 题目：Nuclear-Magnetic-Resonance Study on Mechanisms of Oil Mobilization in Tight Sandstone Reservoir Exposed to Carbon Dioxide 期刊名称：SPE Journal 出版期号：SPE-179554-PA |
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wanghaitao2193: 金币+10, ★★★★★最佳答案 2019-06-12 12:07:21
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wanghaitao2193: 金币+10, ★★★★★最佳答案 2019-06-12 12:07:21
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Nuclear-Magnetic-Resonance Study on Mechanisms of Oil Mobilization in Tight Sandstone Reservoir Exposed to Carbon Dioxide 作者:Wang, HT (Wang, Haitao)[ 1 ] ; Lun, ZM (Lun, Zengmin)[ 1 ] ; Lv, CY (Lv, Chengyuan)[ 1 ] ; Lang, DJ (Lang, Dongjiang)[ 1 ] ; Pan, WY (Pan, Weiyi)[ 1 ] ; Luo, M (Luo, Ming)[ 1 ] ; Wang, R (Wang, Rui)[ 1 ] ; Chen, SH (Chen, Shaohua)[ 1 ] SPE JOURNAL 卷: 23 期: 3 页: 750-761 出版年: JUN 2018 文献类型:Article 查看期刊影响力 摘要 Nuclear magnetic resonance (NMR) was used to investigate the exposure between carbon dioxide (CO2) and the sandstone matrix with a permeability of 0.218 md and a porosity of 9.5% at 40 degrees C and 12 MPa (immiscible condition). Minimum miscibility pressure (MMP) between oil and CO2 was 17.8 MPa, determined by slimtube test at 40 degrees C. The exposure process between CO2 and the sandstone matrix included first, second, third, and fourth exposure experiments. Before each exposure experiment started, there was a CO2-injection stage with a CO2 injection under a constant pressure of 12 MPa and at a constant rate to keep fresh CO2 (concentration of CO2 is 100% in gas phase) in the system. Each exposure experiment ended when the obtained T-2 spectrum was unchanged (total amount of oil in tight matrix remains constant). These processes were similar to CO2 huff 'n' puff. The results showed that (1) oil in all pores could mobilize as exposure time increases in the first exposure experiment. (2) The total original-oil-in-place (OOIP) recovery is 46.6% for oil in big pores (29 ms < T-2 <= 645 ms)-this result is higher than the recovery (12.8%) for oil in small pores (T-2 <= 29 ms). (3) Oil is mobilized fast in the initial exposure hours, and then the rate drops gradually until no more oil is produced. (4) Initially, the oil exists in pores with maximum relaxation times of 645 ms in the originally saturated core. After the CO2 injection, oil flows to pores with relaxation times slower than 645 ms, suggesting that oil in tight matrix is mobilized to the surface of core by swelling caused by CO 2 diffusion. (5) The final OOLP recoveries of first, second, third, and fourth exposure experiments are 23.7, 7.2, 2.6, and 1.5%, respectively, and they decline exponentially. Oil mobilization in a tight-sandstone reservoir exposed to CO2 was observed by NMR T-2 spectra under multiple exposure experiments. Mechanisms of oil mobilization were investigated (i.e., oil swelling, concentration-driven diffusion of hydrocarbons, and extraction of light components). The CO2 enhanced oil recovery (EOR) with multiple injections under immiscible conditions is acceptable and satisfactory in a tight-sandstone reservoir. CO2 huff 'n' puff with optimized injection, soaking, and production process is an economic development method in a tight sandstone reservoir. 关键词 KeyWords Plus:EOR 作者信息 通讯作者地址: Wang, HT (通讯作者) 显示更多 Sinopec, Petr Explorat & Prod Res Inst, Beijing, Peoples R China. 地址: 显示更多 [ 1 ] Sinopec, Petr Explorat & Prod Res Inst, Beijing, Peoples R China 基金资助致谢 基金资助机构 授权号 National Natural Science Foundation of China 51504283 Technology Development Department of Sinopec 查看基金资助信息 出版商 SOC PETROLEUM ENG, 222 PALISADES CREEK DR,, RICHARDSON, TX 75080 USA 类别 / 分类 研究方向:Engineering Web of Science 类别:Engineering, Petroleum 文献信息 语言:English 入藏号: WOS:000456049500009 ISSN: 1086-055X eISSN: 1930-0220 其他信息 IDS 号: HH9IA Web of Science 核心合集中的 "引用的参考文献": 22 Web of Science 核心合集中的 "被引频次": 2 查看较少数据字段 |
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