| Quantitative investigation on the characteristics of ions transport into water in gas shale: Marine and continental shale as comparative study | |
| Yang L(杨柳); Shi, Xian; Ge, Hongkui; Liu, Dunqing; Qu, Xiangmei; Gao, Jian; Li, Lingdong; Xu, Peng; Tan, Xiqun; Yang, L (reprint author), Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing 100190, Peoples R China.; Shi, X (reprint author), China Univ Petr East China, Sch Petr Engn, Qingdao 266580, Peoples R China. | |
| Source Publication | JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING
 |
| 2017-10-01 | |
| Volume | 46Pages:251-264 |
| ISSN | 1875-5100 |
| Abstract | Investigating ions transport from matrix pores to water is essential for understanding the salinity profiles of shale gas. Previous publications have shown that salt ions can be sourced from the dissolution of precipitated salts and leaching of clay minerals. However, neither a clear standard method nor generally accepted evaluation parameters have been proposed for a quantitative study of the impact and role of these two factors. In this work, a new method based on crushed samples is proposed to avoid the influence of microfractures, and simulate the ions advection and diffusion into water. The characteristic parameters and influencing factors are studied by conducting comparative experiments on sandstone, marine and continental shale samples. The preliminary results showed that it is a credible method to study the impact of precipitated salts and clay minerals. Each transport curve can be divided into three parts: a linear imbibition-diffusion part, non-linear transition part and diffusion part. Three parameters of surface ions density, ions diffusion rate and ions transport capacity can be used for quantitative characterization. Compared with sandstone of relatively higher permeability, shale has a much larger surface ion density and ions diffusion rate, resulting in stronger ions transport capacity. Marine shale has a larger surface ions density than continental shale, suggesting that SID is primarily determined by precipitated salts. However, continental shale has a larger ions diffusion rate than marine shale, leading to a stronger ion transport capacity. It can be explained by more clay minerals in continental shale. Clay minerals that correspond to higher cation exchange capacity and specific surface area can promote faster ion exchange reactions. By comparison with dissolution of precipitated salts, leaching of clay minerals is the dominant mechanism for ion transfer from shale to water. (C) 2017 Elsevier B.V. All rights reserved. |
| Keyword | Shale Imbibition Ions Diffusion Fracturing |
| DOI | 10.1016/j.jngse.2017.07.020 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000413607200020 |
| WOS Keyword | IMBIBITION ; ADSORPTION ; FRACTURES |
| WOS Research Area | Energy & Fuels ; Engineering |
| WOS Subject | Energy & Fuels ; Engineering, Chemical |
| Funding Organization | Key Laboratory of Gas Hydrate, Guangzhou Institute of Energy Conversion - Postdoctoral Science Foundation(Y707kj1001 ; Foundation of Shale Oil and Gas Enrichment Mechanisms and Effective Development(G5800-15-ZS-WX047) ; 2016M601141) |
| Classification | 二类 |
| Ranking | 1 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/71941 |
| Collection | 流固耦合系统力学重点实验室 |
| Corresponding Author | Yang, L (reprint author), Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing 100190, Peoples R China.; Shi, X (reprint author), China Univ Petr East China, Sch Petr Engn, Qingdao 266580, Peoples R China. |
| Recommended Citation GB/T 7714 | Yang L,Shi, Xian,Ge, Hongkui,et al. Quantitative investigation on the characteristics of ions transport into water in gas shale: Marine and continental shale as comparative study[J]. JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING,2017,46:251-264. |
| APA | 杨柳.,Shi, Xian.,Ge, Hongkui.,Liu, Dunqing.,Qu, Xiangmei.,...&Shi, X .(2017).Quantitative investigation on the characteristics of ions transport into water in gas shale: Marine and continental shale as comparative study.JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING,46,251-264. |
| MLA | 杨柳,et al."Quantitative investigation on the characteristics of ions transport into water in gas shale: Marine and continental shale as comparative study".JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING 46(2017):251-264. |
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| JouArt-2017-193.pdf（4515KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Download | |
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