The effects of ion diffusion on imbibition oil recovery in salt-rich shale oil reservoirs
文献类型：期刊论文
| 作者 | Yang L(杨柳); Zhang XH(张旭辉) ; Zhou T; Lu XB(鲁晓兵); Zhang CQ; Zhang KH
|
| 刊名 | JOURNAL OF GEOPHYSICS AND ENGINEERING
 |
| 出版日期 | 2019-06-01 |
| 卷号 | 16期号:3页码:525-540 |
| 关键词 | water imbibition ion diffusion shale oil nuclear magnetic resonance |
| ISSN号 | 1742-2132 |
| DOI | 10.1093/jge/gxz025 |
| 通讯作者 | Zhang, Xuhui(zhangxuhui@imech.ac.cn) |
| 英文摘要 | During the fracturing fluid imbibition into shale reservoirs, partial minerals could dissolve and diffuse into the fracturing fluid. However, few studies are conducted on the effects of ion diffusion on shale oil migration, especially in salt-rich shale oil reservoirs. The salt-rich shale oil reservoirs are regarded as the potential hot targets for shale oil exploration in China. In this study, a series of water imbibition and ion diffusion experiments are conducted on salt-rich shale samples. The nuclear magnetic resonance method is used to monitor the oil migration and demonstrate the effects of ion diffusion. The experimental results show that the salt-rich shale contains a large amount of halite, resulting in a much higher salt ion diffusion capacity than conventional shale (about 15-45 times higher). Salt ion diffusion can induce lots of pores, caves and fractures that can act as channels for oil migration. However, the dimensionless imbibition rate has a negative relationship with ion diffusion capacity, indicating that too many salt crystals cannot contribute to the oil production. The salt crystals dissolution may block matrix pores and generally reduce the oil migration rate, despite these new migration channels. This study can help understand the effects of fracturing fluid retention on oil production in salt-rich shale oil reservoirs |
| 分类号 | Q3 |
| WOS关键词 | NUCLEAR-MAGNETIC-RESONANCE ; WATER IMBIBITION ; GAS SHALES ; MINERALOGY ; BASIN |
| 资助项目 | Foundation of the National Natural Science Foundation of China[11702296] ; Fundamental Research Funds for the Central Universities ; National Science and Technology Major Project of the Ministry of Science and Technology of China[2016ZX05046-003] ; Major National Science and Technology Projects of China[2017ZX05049003-005] |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000473766300004 |
| 资助机构 | Foundation of the National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities ; National Science and Technology Major Project of the Ministry of Science and Technology of China ; Major National Science and Technology Projects of China |
| 其他责任者 | Zhang, Xuhui |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/79425]  |
| 专题 | 力学研究所_流固耦合系统力学重点实验室(2012-) |
| 推荐引用方式 GB/T 7714 | Yang L,Zhang XH,Zhou T,et al. The effects of ion diffusion on imbibition oil recovery in salt-rich shale oil reservoirs[J]. JOURNAL OF GEOPHYSICS AND ENGINEERING,2019,16(3):525-540. |
| APA | 杨柳,张旭辉,Zhou T,鲁晓兵,Zhang CQ,&Zhang KH.(2019).The effects of ion diffusion on imbibition oil recovery in salt-rich shale oil reservoirs.JOURNAL OF GEOPHYSICS AND ENGINEERING,16(3),525-540. |
| MLA | 杨柳,et al."The effects of ion diffusion on imbibition oil recovery in salt-rich shale oil reservoirs".JOURNAL OF GEOPHYSICS AND ENGINEERING 16.3(2019):525-540. |
入库方式： OAI收割
来源：力学研究所
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