Pore Development Characteristics of Marine-Continental Transitional Shale of Benxi Formation from the Ordos Basin, China
文献类型：期刊论文
| 作者 | Guo, Huijuan2,3; Liu, Min2,3,4; Zhang, Hui1; Zhao, Weibo1; Wang, Huaichang1; Zhou, Qin2,3; Shi, Shuyong2,3; He, Zhihua2,3; Liu, Xinshe1; Wang, Yunpeng2,3 |
| 刊名 | ENERGY & FUELS
 |
| 出版日期 | 2023-12-26 |
| 卷号 | 38期号:2页码:1126-1147 |
| ISSN号 | 0887-0624 |
| DOI | 10.1021/acs.energyfuels.3c03964 |
| 英文摘要 | The mechanisms governing pore development, particularly of organic pores, in marine-continental transitional shales remain poorly constrained. This study investigated the primary controls on pore evolution within transitional shales of the Benxi Formation using low-pressure gas adsorption, field emission scanning electron microscopy, bulk mineralogy and maceral analyses, and other techniques. Total organic carbon (TOC) contents exhibit positive correlations with shale microporosity and negative correlations with macroporosity. On the basis of S/TOC ratios and sedimentological evidence, the Benxi shales accumulated across a range of marine, brackish, and freshwater depositional environments. In general, more negative delta C-13(kerogen) values correlate with higher S/TOC, consistent with a marine source for the most C-13-depleted kerogens. Kerogens with delta C-13 of < -25 parts per thousand reflect a marine origin, while those with delta C-13 of > -25 parts per thousand indicate varying salinity conditions. Both organic matter composition and pore development within type III kerogens proved highly sensitive to paleosalinity. Specifically, marine-sourced organic matter possesses substantially lower microporosity but higher meso- and macroporosities compared to material deposited in freshwater settings. Accordingly, thermally mature marine-influenced Benxi shales likely retain greater shale gas potential versus non-marine equivalents. |
| WOS研究方向 | Energy & Fuels ; Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001145499100001 |
| 源URL | [http://ir.gig.ac.cn/handle/344008/76131]  |
| 专题 | 有机地球化学国家重点实验室 |
| 通讯作者 | Guo, Huijuan; Wang, Yunpeng |
| 作者单位 | 1.PetroChina Changqing Oilfield, Res Inst Explorat & Dev, Xian 710018, Shaanxi, Peoples R China 2.Chinese Acad Sci, State Key Lab Organ Geochem, Guangzhou Inst Geochem, Guangzhou 510640, Guangdong, Peoples R China 3.CAS Ctr Excellence Deep Earth Sci, Guangzhou 510640, Guangdong, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Guo, Huijuan,Liu, Min,Zhang, Hui,et al. Pore Development Characteristics of Marine-Continental Transitional Shale of Benxi Formation from the Ordos Basin, China[J]. ENERGY & FUELS,2023,38(2):1126-1147. |
| APA | Guo, Huijuan.,Liu, Min.,Zhang, Hui.,Zhao, Weibo.,Wang, Huaichang.,...&Peng, Ping'an.(2023).Pore Development Characteristics of Marine-Continental Transitional Shale of Benxi Formation from the Ordos Basin, China.ENERGY & FUELS,38(2),1126-1147. |
| MLA | Guo, Huijuan,et al."Pore Development Characteristics of Marine-Continental Transitional Shale of Benxi Formation from the Ordos Basin, China".ENERGY & FUELS 38.2(2023):1126-1147. |
入库方式： OAI收割
来源：广州地球化学研究所
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